U.S. patent application number 15/018416 was filed with the patent office on 2016-11-10 for electronically documenting locate operations for underground utilities.
The applicant listed for this patent is CertusView Technologies, LLC. Invention is credited to Curtis Chambers, Jeffrey Farr, Steven Nielsen.
Application Number | 20160328869 15/018416 |
Document ID | / |
Family ID | 40938907 |
Filed Date | 2016-11-10 |
United States Patent
Application |
20160328869 |
Kind Code |
A1 |
Nielsen; Steven ; et
al. |
November 10, 2016 |
ELECTRONICALLY DOCUMENTING LOCATE OPERATIONS FOR UNDERGROUND
UTILITIES
Abstract
A technician performs a locate operation of an underground
utility in a dig area of proposed excavation by applying one or
more physical colored markers (e.g., paint, flags, other colored
markers) to ground, pavement or other surface to indicate a
presence or an absence of the underground utility in the dig area.
A digital image of a geographic area comprising the dig area is
displayed on a display device, and one or more electronic colored
markers corresponding to the physical colored marker(s) are added
to the displayed digital image so as to generate a marked-up image.
Information relating to the marked-up image is electronically
transmitted and/or electronically stored so as to document the
locate operation.
Inventors: |
Nielsen; Steven; (North Palm
Beach, FL) ; Chambers; Curtis; (Palm Beach Gardens,
FL) ; Farr; Jeffrey; (Royal Palm Beach, FL) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
CertusView Technologies, LLC |
Palm Beach Gardens |
FL |
US |
|
|
Family ID: |
40938907 |
Appl. No.: |
15/018416 |
Filed: |
February 8, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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13950655 |
Jul 25, 2013 |
9256964 |
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15018416 |
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13796487 |
Mar 12, 2013 |
8532341 |
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13950655 |
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13625436 |
Sep 24, 2012 |
8630463 |
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13796487 |
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12369232 |
Feb 11, 2009 |
8290204 |
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13625436 |
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12029732 |
Feb 12, 2008 |
8532342 |
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12369232 |
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12366853 |
Feb 6, 2009 |
8280117 |
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12029732 |
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12050555 |
Mar 18, 2008 |
8249306 |
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12366853 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G06K 9/00 20130101; G06T
2207/30204 20130101; G06T 11/60 20130101; G06K 2009/3225 20130101;
G06T 11/001 20130101; G06K 9/3208 20130101; G06K 9/0063 20130101;
G09B 29/106 20130101; G09B 29/007 20130101; G06F 3/0481
20130101 |
International
Class: |
G06T 11/60 20060101
G06T011/60; G09B 29/00 20060101 G09B029/00; G06K 9/00 20060101
G06K009/00; G06T 11/00 20060101 G06T011/00; G06F 3/0481 20060101
G06F003/0481 |
Claims
1. A method, comprising: A) performing a locate operation of at
least one underground facility in a dig area that is planned to be
excavated or disturbed during excavation activities by applying to
ground, pavement or other surface in the dig area at least one
physical colored marker to indicate a presence or an absence of the
at least one underground facility below the ground, pavement or
other surface in the dig area; B) displaying on a display device at
least one digital image of a geographic area comprising the dig
area; C) adding to the displayed digital image at least one
electronic colored marker corresponding to the at least one
physical colored marker applied to the ground, pavement or other
surface in the dig area so as to generate a marked-up image
including the at least one electronic colored marker; and D)
electronically transmitting and/or electronically storing
information relating to the marked-up image to document the locate
operation performed in A).
Description
CROSS-REFERENCES TO RELATED APPLICATIONS
[0001] This application claims the benefit, under 35 U.S.C.
.sctn.120, as a continuation (CON) of U.S. Non-provisional
application Ser. No. 13/950,655, filed Jul. 25, 2013, entitled
"Electronically Documenting Locate Operations For Underground
Utilities." (Atty. Docket No. DYCO-028/05US 319976-2627).
[0002] Application Ser. No. 13/950,655 claims the benefit, under 35
U.S.C. .sctn.120, as a continuation (CON) of U.S. Non-provisional
application Ser. No. 13/796,487, filed Mar. 12, 2013, entitled
"Electronically Documenting Locate Operations For Underground
Utilities." (Atty. Docket No. DYCO-028/04US 319976-2580).
[0003] Application Ser. No. 13/796,487 claims the benefit, under 35
U.S.C. .sctn.120, as a continuation (CON) of U.S. Non-provisional
application Ser. No. 13/625,436, filed Sep. 24, 2012, entitled
"Searchable Records of Underground Facility Locate Marking
Operations." (Atty. Docket No. DYCO-028/02US 319976-2520).
[0004] Application Ser. No. 13/625,436 claims the benefit, under 35
U.S.C. .sctn.120, as a continuation (CON) of U.S. Non-provisional
application Ser. No. 12/369,232, filed Feb. 11, 2009, entitled
"Searchable Electronic Records of Underground Facility Locate
Marking Operations." (Atty. Docket No. DYCO-028/00US
319976-2190).
[0005] Application Ser. No. 12/369,232 claims the benefit under 35
U.S.C. .sctn.120 as a continuation-in-part of U.S. patent
application Ser. No. 12/029,732, filed Feb. 12, 2008, entitled
"Electronic Manifest of Underground Facility Locate Marks." (Atty.
Docket No. DYCO-003/00US 319976-2110).
[0006] Application Ser. No. 12/369,232 also claims the benefit
under 35 U.S.C. .sctn.120 as a continuation-in-part of U.S. patent
application Ser. No. 12/366,853, filed Feb. 6, 2009, entitled
"Virtual White Lines for Indicating Planned Excavation Sites on
Electronic Images," (Atty. Docket No. DYCO-022/00US 319976-2167)
which in turn claims the benefit under 35 U.S.C. .sctn.120 as a
continuation-in-part of U.S. patent application Ser. No.
12/050,555, filed Mar. 18, 2008, entitled "Virtual White Lines for
Delimiting Planned Excavation Sites." (Atty. Docket No.
DYCO-002/00US 319976-2104).
[0007] Each of the above-identified applications is hereby
incorporated herein by reference.
BACKGROUND
[0008] Excavators are required to notify underground facility
owners/operators in advance of their excavation activities and to
describe and communicate the geographic area of those activities to
underground facility owners/operators. The geographic area so
described is commonly referred to as "the dig area." In turn,
facility owners/operators are required to determine if they own or
operate any underground facilities at an identified dig area. The
presence of underground facilities at a dig area is generally
detected using a device commonly referred to as a "locate wand."
Locate wands use a number of electronic methods to detect the
presence of underground facilities. The location of those
underground facilities, if any, which exist within a dig area, is
marked using paint or some other physical marking system, such as
flags. Paint is generally applied as a sequence of dashes or dots
on the surface (grass, dirt, asphalt, concrete, etc.) directly
above the underground facility and is color-coded to indicate to
the excavator the type (e.g., gas, water, sewer, power, telephone,
cable television, etc.) of the underground facility present. Flags,
which also may identify the underground facility via color-coding,
can be placed in the ground directly above the underground facility
being marked. Paint and/or flags can be dispensed using various
devices. The application of paint, flags, or some other marking
object to indicate the presence of an underground facility is
called a "locate." The marks resulting from a locate are commonly
called underground facility "locate marks."
[0009] Underground facility owners/operators may perform locates
with in-house employees or choose to hire independent contract
locating firms to perform locates on their behalf. Generally, the
person performing the locate operation is called a locate
technician. The set of instructions necessary for a locate
technician to perform a locate operation may be called a "ticket."
A ticket might specify, for example, the address or description of
the dig area to be marked, the day and/or time that the dig area is
to be marked, and/or whether the user is to mark the dig area for
telecommunications (e.g., telephone and/or cable television),
power, gas, water, sewer, or some other underground facility.
[0010] It is generally recommended, or in some jurisdictions
required, to document the type and number of underground facilities
located, i.e. telephone, power, gas, water, sewer, etc., and the
approximate geographic location of the locate marks. Often times it
is also recommended or required to document the distance, or
"offset" of the locate marks from environmental landmarks that
exist at the dig area. An environmental landmark may include any
physical object that is likely to remain in a fixed location for an
extended period of time. Examples of an environmental landmark may
include a tree, a curb, a driveway, a utility pole, a fire hydrant,
a storm drain, a pedestal, a water meter box, a manhole lid, a
building structure (e.g., a residential or office building), or a
light post. For example, a telephone cable located two and a half
meters behind the curb of a residential street would be documented
as being offset two and a half meters behind the curb. These
offsets serve as evidence supporting the location of the locate
marks after those locate marks may have been disturbed by the
excavation process.
[0011] Documentation of some or all of the information regarding a
locate operation is often called a "manifest." A manifest may
typically contain a variety of information related to a locate
operation including a sketch or drawing of the dig area that
identifies the approximate location of the locate marks and
environmental landmarks present at the dig area; the time and date
the locate operation was performed; identification of the entity
and the locate technician performing the locate operation; the
entity requesting the locate operation; the geographic address of
the dig area; the type of markings used for the locate operation
(e.g., colored paint, flags, or other markers); notes from the
locate technician; and/or a technician signature.
[0012] If performing locate operations with in-house employees,
each individual underground facility owner/operator generally
documents on the manifest only the existence of its facilities and
the approximate location of its locate marks. If an independent
contract locating firm is hired to perform locates for more than
one underground facility owner/operator, the contract locating firm
may document on the manifest some or all of the underground
facilities at the dig area that it located and the approximate
location of all the locate marks.
[0013] Currently, locate marks are generally documented using a
sketching process which results in the creation of a paper
manifest. Sketches are produced by hand, are not to scale, prone to
human error, and costly in drafting time spent by the locate
technician. They are stored manually or in some jurisdictions are
digitally scanned/photographed and the image stored electronically.
Because the manifests are stored as paper or digital images, they
are not easily interrogated for data in any mechanized way.
SUMMARY
[0014] Various embodiments of the present invention are directed to
methods, apparatus and systems for creating a searchable electronic
record, or "electronic manifest," relating to a geographic area
including a dig area to be excavated or otherwise disturbed. As
part of the electronic record, the geographic location of one or
more physical locate marks, applied to the dig area during a locate
operation to indicate a presence (or absence) of one or more
located underground facilities, is somehow identified with respect
to its immediate surroundings in the geographic area.
[0015] To create such an electronic record, in one exemplary
implementation one or more input images relating to the geographic
area including the dig area may be utilized. For example, source
data representing one or more input images of a geographic area
including the dig area is received and/or processed so that the
input image(s) may be displayed on a display device. The geographic
location of the physical locate mark(s) is then indicated in some
manner on the displayed input image(s) so as to generate one or
more marked-up images constituting at least a portion of the
electronic record. For example, geographic locations of the
physical locate mark(s) may be indicated in the marked-up image(s)
using digital representation(s) of the physical locate mark(s)
("locate mark indicators") that are added to the marked-up
image(s). In other implementations, the input image need not
necessarily be displayed to add one or more locate mark indicators;
for example, geographic information relating to one or more
physical locate marks applied to the dig area may be received and
locate mark indicator(s) may be added to the input image based on
the geographic information, without requiring display of the input
image.
[0016] In some implementations of the inventive concepts disclosed
herein, the searchable electronic record may include a variety of
non-image information to facilitate identification of the
geographic location of the physical locate mark(s) (e.g., a text
description of the geographic location of the physical locate
mark(s), an address or lot number of a property within which the
physical locate mark(s) are located, geo-encoded information such
as geographic coordinates relating to the physical locate mark(s)
and/or various aspects of the geographic area surrounding the
physical locate mark(s), as well as other non-image information
relating generally to the locate operation (e.g., a timestamp for
the locate operation, geographic information relating to the dig
area, one or more identifiers for a locate technician and/or a
locate company performing the locate operation, information
regarding one or more environmental landmarks, etc.). The marked-up
image(s) and the non-image information may be formatted in a
variety of manners in the searchable electronic record; for
example, in one implementation the non-image information may be
included as metadata associated with the marked-up image(s), while
in other implementations the marked-up image(s) and the non-image
information may be formatted as separate data sets. These separate
data sets may be transmitted and/or stored separately. In another
aspect, whether transmitted/stored separately or together, the
marked-up image(s) and the non-image information may be linked
together in some manner as relating to a common electronic
record.
[0017] In sum, one embodiment of the present invention is directed
to a method performed by a device. The method comprises receiving
information regarding a particular geographic area; retrieving an
aerial image of the particular geographic area; displaying the
aerial image; determining an approximate geographic location of a
locate mark denoting an underground facility; overlaying, on the
displayed aerial image, information concerning the approximate
geographic location of the locate mark denoting the underground
facility; and storing the aerial image and the information
concerning the approximate geographic location of the locate mark
denoting the underground facility.
[0018] Another embodiment of the present invention is directed to a
device, comprising a memory to store aerial images of a plurality
of geographic areas; and a processing unit to receive information
regarding a particular one of the geographic areas, retrieve one of
the aerial images from the memory based on the received
information, receive information concerning an approximate
geographic location of an underground facility locate mark located
within the particular geographic area, present, on the retrieved
aerial image, the information concerning the approximate geographic
location of the underground facility locate mark, and store the
retrieved aerial image and the information concerning the
approximate geographic location of the underground facility locate
mark.
[0019] A further embodiment of the present invention is directed to
a system, comprising means for identifying a geographic area; means
for retrieving an aerial image of the geographic area; means for
displaying the retrieved image; means for receiving input from a
user concerning an approximate geographic location of underground
facility locate marks that are located within the geographic area;
means for presenting, on the displayed aerial image, a marking that
identifies the approximate geographic location of the underground
facility locate marks within the geographic area; and means for
storing the displayed aerial image with the marking that identifies
the approximate geographic location of the underground facility
locate marks.
[0020] Another embodiment of the present invention is directed to a
system, comprising a central server to store a plurality of aerial
images of a corresponding plurality of geographical locations; and
a user device to identify a particular geographic location,
determine whether the user device stores an aerial image
corresponding to the particular geographic location, retrieve the
aerial image from the central server when the user device does not
store the aerial image corresponding to the particular geographic
location, retrieve the aerial image from a local memory when the
user device stores the aerial image corresponding to the particular
geographic location, display the aerial image, receive information
regarding an approximate location of underground facility locate
marks located at the particular geographic location, and present,
on the displayed aerial image, a marking that identifies the
approximate location of the underground facility locate marks.
[0021] A further embodiment of the present invention is directed to
a method performed by a device. The method comprises receiving
information regarding a particular geographic area; retrieving an
aerial image of the particular geographic area; receiving, from a
global positioning system (GPS)-enabled device, information
regarding an approximate location of underground facility locate
marks; displaying, as a combined image, the aerial image and the
information regarding the approximate location of underground
facility locate marks; and storing the combined image.
[0022] Another embodiment of the present invention is directed to a
device, comprising a memory to store images of a plurality of
geographic locations; a processing unit to retrieve one of the
images from the memory based on received information, the received
information concerning a geographic location of an underground
facility locate mark located within a particular dig area; present,
on the retrieved image, the received information of the underground
facility locate mark; and store the retrieved image and the
received information of the geographic location of the underground
facility locate mark.
[0023] A further embodiment of the present invention is directed to
a system, comprising means for identifying a geographic location;
means for retrieving an image of the geographic location; means for
displaying the retrieved image; means for receiving input from a
user concerning a geographic location of underground facility
locate marks that are located within the dig area; means for
presenting, on the displayed image, a marking that identifies the
geographic location of the underground facility locate marks within
the dig area; and means for storing the displayed image with the
marking that identifies the geographic location of the underground
facility locate marks.
[0024] Another embodiment of the present invention is directed to a
system, comprising a central server to store a plurality of images
of a plurality of geographical locations; a user device to identify
at least one of the geographic locations, and to retrieve the image
from the central server when the user device does not store the
image corresponding to at least one of the geographic locations, or
to retrieve the image from a local memory when the user device
stores the image corresponding to the at least one of the
geographic locations; display the image; receive information
regarding an approximate location of underground facility locate
marks located at the at least one geographic location; and present,
on the displayed image, a marking that identifies the approximate
location of the underground facility locate marks.
[0025] A further embodiment of the present invention is directed to
a method for generating a searchable electronic record of a locate
operation performed by a locate technician. The locate operation
comprises identifying, using at least one physical locate mark, a
presence or an absence of at least one underground facility within
a dig area. At least a portion of the dig area may be excavated or
disturbed during excavation activities. The method comprises A)
electronically receiving a digital image of a geographic area
comprising the dig area, at least a portion of the received digital
image being displayed on a display device; B) adding to the
displayed digital image at least one digital representation of the
at least one physical locate mark applied by the locate technician
during the locate operation so as to generate a marked-up digital
image including the at least one digital representation of the at
least one physical locate mark; and C) electronically transmitting
and/or electronically storing information relating to the marked-up
digital image so as to generate the searchable electronic record of
the locate operation.
[0026] Another embodiment of the present invention is directed to a
computer-readable medium encoded with instructions that, when
executed on at least one processing unit, perform a method of
generating a searchable electronic record of a locate operation
performed by a locate technician. The locate operation comprises
identifying, using at least one physical locate mark, a presence or
an absence of at least one underground facility within a dig area.
At least a portion of the dig area may be excavated or disturbed
during excavation activities, the method comprising A)
electronically receiving a digital image of a geographic area
comprising the dig area; B) receiving user input regarding a
geographic location of the at least one physical locate mark
applied by the locate technician during the locate operation; and
C) rendering a screen display comprising at least a portion of the
received digital image and at least one digital representation of
the at least one physical locate mark, wherein the at least one
digital representation is positioned with respect to the at least a
portion of the received digital image based at least in part on the
user input received in B).
[0027] A further embodiment of the present invention is directed to
an apparatus for facilitating generation of a searchable electronic
record of a locate operation performed by a locate technician. The
locate operation comprising identifying, using at least one
physical locate mark, a presence or an absence of at least one
underground facility within a dig area. At least a portion of the
dig area may be excavated or disturbed during excavation
activities. The apparatus comprises a communication interface; a
display device; a user input device; a memory to store
processor-executable instructions; and a processing unit coupled to
the communication interface, the display device, the user input
device, and the memory, wherein upon execution of the
processor-executable instructions by the processing unit. The
processing unit controls the communication interface to
electronically receive a digital image of a geographic area
including the dig area; controls the display device to display at
least a portion of the received digital image; acquires user input
from the user input device, the user input relating to a geographic
location of the at least one physical locate mark applied by the
locate technician during the locate operation; generates a
marked-up digital image including at least one digital
representation of the at least one physical locate mark based at
least in part on the user input; and further controls the
communication interface and/or the memory to electronically
transmit and/or electronically store information relating to the
marked-up digital image so as to generate the searchable electronic
record of the locate operation.
[0028] Another embodiment of the present invention is directed to a
method for generating a searchable electronic record of a locate
operation performed by a locate technician. The locate operation
comprises identifying, using at least one physical locate mark, a
presence or an absence of at least one underground facility within
a dig area. At least a portion of the dig area may be excavated or
disturbed during excavation activities. The method comprises A)
electronically receiving a digital image of a geographic area
comprising the dig area, at least a portion of the received digital
image being displayed on a display device; B) electronically
receiving location information regarding an identified location of
the at least one physical locate mark; C) based at least in part on
the location information received in B), digitally representing, on
the displayed digital image, the identified location of the at
least one physical locate mark applied by the locate technician
during the locate operation so as to generate a marked-up digital
image including the at least one digital representation of the at
least one physical locate mark; and D) electronically transmitting
and/or electronically storing information relating to the marked-up
digital image so as to generate the searchable electronic record of
the locate operation.
[0029] A further embodiment of the present invention is directed to
a computer-readable medium encoded with instructions that, when
executed on at least one processing unit, perform a method of
generating a searchable electronic record of a locate operation
performed by a locate technician. The locate operation comprises
identifying, using at least one physical locate mark, a presence or
an absence of at least one underground facility within a dig area.
At least a portion of the dig area may be excavated or disturbed
during excavation activities. The method comprises A)
electronically receiving a digital image of a geographic area
comprising the dig area; B) electronically receiving, from a
GPS-enabled device, information regarding a GPS-determined
geographic location of the at least one physical locate mark
applied by the locate technician during the locate operation; C)
rendering a screen display comprising at least a portion of the
received digital image and at least one digital representation of
the at least one physical locate mark, wherein the at least one
digital representation is positioned with respect to the at least a
portion of the received digital image based on the GPS-determined
geographic location of the at least one physical locate mark; and
D) electronically transmitting and/or electronically storing
information identifying the GPS-determined geographic location of
the at least one physical locate mark so as to document the at
least one physical locate mark applied by the locate
technician.
[0030] Another embodiment of the present invention is directed to
an apparatus for facilitating generation of a searchable electronic
record of a locate operation performed by a locate technician. The
locate operation comprises identifying, using at least one physical
locate mark, a presence or an absence of at least one underground
facility within a dig area. At least a portion of the dig area may
be excavated or disturbed during excavation activities. The
apparatus comprises a communication interface; a display device; a
memory to store processor-executable instructions; and a processing
unit coupled to the communication interface, the display device,
and the memory, wherein upon execution of the processor-executable
instructions by the processing unit. The processing unit controls
the communication interface to electronically receive a digital
image of a geographic area including the dig area; controls the
display device to display at least a portion of the received
digital image; acquires input from a marking device configured to
apply the at least one physical locate mark to the dig area, the
input relating to a geographic location of the at least one
physical locate mark applied by the locate technician during the
locate operation; generates a marked-up digital image including at
least one digital representation of the at least one physical
locate mark, based at least in part on the input acquired from the
marking device; and further controls the communication interface
and/or the memory to electronically transmit and/or electronically
store information relating to the marked-up digital image so as to
generate the searchable electronic record of the locate
operation.
[0031] A further embodiment of the present invention is directed to
an apparatus for facilitating generation of a searchable electronic
record of a locate operation performed by a locate technician. The
locate operation comprises identifying a presence or an absence of
at least one underground facility within a dig area. At least a
portion of the dig area may be excavated or disturbed during
excavation activities. The apparatus comprises a communication
interface; a display device; a memory to store processor-executable
instructions; and a processing unit coupled to the communication
interface, the display device, and the memory. Upon execution of
the processor-executable instructions by the processing unit, the
processing unit controls the communication interface to
electronically receive an image of a geographic area including the
dig area; controls the display device to display at least a portion
of the received image; combines the electronically received image
with image-related information so as to generate the searchable
electronic record, and controls the communication interface and/or
the memory to electronically transmit and/or electronically store
the searchable electronic record of the locate operation so that
performance of the location operation is verifiable. The
image-related information comprises a geographic location
associated with the dig area; and a timestamp indicative of when
the locate operation occurred.
[0032] Another embodiment of the present invention is directed to a
method for generating a searchable electronic record of a locate
operation performed by a locate technician. The locate operation
comprises identifying a presence or an absence of at least one
underground facility within a dig area. At least a portion of the
dig area may be excavated or disturbed during excavation
activities. The method comprises A) electronically receiving an
image of a geographic area comprising the dig area; B) combining
the electronically received image with image-related information so
as to generate the searchable electronic record; and C)
electronically transmitting and/or electronically storing the
searchable electronic record of the locate operation so that
performance of the location operation is verifiable. The
image-related information comprises a geographic location
associated with the dig area; and a timestamp indicative of when
the locate operation occurred.
[0033] A further embodiment of the present invention is directed to
a computer-readable medium encoded with instructions that, when
executed on at least one processing unit, perform a method of
generating a searchable electronic record of a locate operation
performed by a locate technician. The locate operation comprises
identifying a presence or an absence of at least one underground
facility within a dig area, wherein at least a portion of the dig
area may be excavated or disturbed during excavation activities.
The method comprises A) electronically receiving an image of a
geographic area comprising the dig area; B) combining the
electronically received image with image-related information so as
to generate the searchable electronic record; and C) electronically
transmitting and/or electronically storing the searchable
electronic record of the locate operation so that performance of
the location operation is verifiable. The image-related information
comprises a geographic location associated with the dig area; and a
timestamp indicative of when the locate operation occurred.
[0034] Another embodiment of the present invention is directed to a
method for generating a searchable electronic record of a locate
operation performed by a locate technician. The locate operation
comprises identifying, using at least one physical locate mark, a
presence or an absence of at least one underground facility within
a dig area. At least a portion of the dig area may be excavated or
disturbed during excavation activities. The method comprises A)
electronically receiving source data representing at least one
input image of a geographic area comprising the dig area; B)
processing the source data so as to display at least a portion of
the at least one input image on a display device; C) adding to the
displayed at least one input image at least one digital
representation of the at least one physical locate mark applied by
the locate technician during the locate operation so as to generate
a marked-up image including the at least one digital representation
of the at least one physical locate mark; and D) electronically
transmitting and/or electronically storing information relating to
the marked-up image so as to generate the searchable electronic
record of the locate operation.
[0035] A further embodiment of the present invention is directed to
at least one computer-readable medium encoded with instructions
that, when executed on at least one processing unit, perform a
method for generating a searchable electronic record of a locate
operation performed by a locate technician. The locate operation
comprises identifying, using at least one physical locate mark, a
presence or an absence of at least one underground facility within
a dig area. At least a portion of the dig area may be excavated or
disturbed during excavation activities. The method comprises A)
electronically receiving source data representing at least one
input image of a geographic area comprising the dig area; B)
processing the source data so as to display at least a portion of
the at least one input image on a display device; C) adding to the
displayed at least one input image at least one digital
representation of the at least one physical locate mark applied by
the locate technician during the locate operation so as to generate
a marked-up image including the at least one digital representation
of the at least one physical locate mark; and D) electronically
transmitting and/or electronically storing information relating to
the marked-up image so as to generate the searchable electronic
record of the locate operation.
[0036] Another embodiment of the present invention is directed to
an apparatus for facilitating generation of a searchable electronic
record of a locate operation performed by a locate technician. The
locate operation comprises identifying, using at least one physical
locate mark, a presence or an absence of at least one underground
facility within a dig area. At least a portion of the dig area may
be excavated or disturbed during excavation activities. The
apparatus comprises a communication interface; a display device; a
memory to store processor-executable instructions; and a processing
unit coupled to the communication interface, the display device,
and the memory, wherein upon execution of the processor-executable
instructions by the processing unit. The processing unit controls
the communication interface to electronically receive source data
representing at least one input image of a geographic area
including the dig area; processes the source data and controls the
display device so as to display at least a portion of the at least
one input image; adds to the displayed at least one input image at
least one digital representation of the at least one physical
locate mark applied by the locate technician during the locate
operation so as to generate a marked-up image including the at
least one digital representation of the at least one physical
locate mark; and further controls the communication interface
and/or the memory to electronically transmit and/or electronically
store information relating to the marked-up image so as to generate
the searchable electronic record of the locate operation.
[0037] A further embodiment of the present invention is directed to
a method for generating a searchable electronic record of a locate
operation performed by a locate technician. The locate operation
comprises identifying, using at least one physical locate mark, a
presence or an absence of at least one underground facility within
a dig area. At least a portion of the dig area may be excavated or
disturbed during excavation activities. The method comprises A)
electronically receiving source data representing at least one
input image of a geographic area comprising the dig area, the at
least one input image including at least one dig area indicator to
provide at least one indication of the dig area in the displayed at
least one input image; B) processing the source data so as to
display at least a portion of the at least one input image
including the at least one dig area indicator on a display device;
C) adding to the displayed at least one input image at least one
locate mark indicator to provide a digital representation of the at
least one physical locate mark applied by the locate technician
during the locate operation, thereby generating a marked-up image
including the at least one dig area indicator and the at least one
locate mark indicator; and D) electronically transmitting and/or
electronically storing information relating to the marked-up image
so as to generate the searchable electronic record of the locate
operation.
[0038] Another embodiment of the present invention is directed at
least one computer-readable medium encoded with instructions that,
when executed on at least one processing unit, perform a method of
generating a searchable electronic record of a locate operation
performed by a locate technician. The locate operation comprises
identifying, using at least one physical locate mark, a presence or
an absence of at least one underground facility within a dig area.
At least a portion of the dig area may be excavated or disturbed
during excavation activities. The method comprises A)
electronically receiving source data representing at least one
input image of a geographic area comprising the dig area, the at
least one input image including at least one dig area indicator to
provide at least one indication of the dig area in the displayed at
least one input image; B) processing the source data so as to
display at least a portion of the at least one input image
including the at least one dig area indicator on a display device;
C) adding to the displayed at least one input image at least one
locate mark indicator to provide a digital representation of the at
least one physical locate mark applied by the locate technician
during the locate operation, thereby generating a marked-up image
including the at least one dig area indicator and the at least one
locate mark indicator; and D) electronically transmitting and/or
electronically storing information relating to the marked-up image
so as to generate the searchable electronic record of the locate
operation.
[0039] A further embodiment of the present invention is directed to
an apparatus for facilitating generation of a searchable electronic
record of a locate operation performed by a locate technician. The
locate operation comprises identifying, using at least one physical
locate mark, a presence or an absence of at least one underground
facility within a dig area. At least a portion of the dig area may
be excavated or disturbed during excavation activities. The
apparatus comprises a communication interface; a display device; a
memory to store processor-executable instructions; and a processing
unit coupled to the communication interface, the display device,
and the memory. Upon execution of the processor-executable
instructions by the processing unit, the processing unit controls
the communication interface to electronically receive source data
representing at least one input image of a geographic area
comprising the dig area, the at least one input image including at
least one dig area indicator to provide at least one indication of
the dig area in the displayed at least one input image; processes
the source data and controls the display device so as to display at
least a portion of the at least one input image including the at
least one dig area indicator on the display device; adds to the
displayed at least one input image at least one locate mark
indicator to provide a digital representation of the at least one
physical locate mark applied by the locate technician during the
locate operation, thereby generating a marked-up image including
the at least one dig area indicator and the at least one locate
mark indicator; and further controls the communication interface
and/or the memory to electronically transmit and/or electronically
store information relating to the marked-up image so as to generate
the searchable electronic record of the locate operation.
[0040] Another embodiment of the present invention is directed to a
method for certifying a locate operation. The locate operation
comprises identifying, using at least one physical locate mark, a
presence or an absence of at least one underground facility within
a dig area. At least a portion of the dig area may be excavated or
disturbed during excavation activities. The method comprises A)
electronically recalling, via a display device coupled to a central
server, a searchable electronic record of a locate operation
performed by a locate technician, the searchable electronic record
stored in memory associated with the central server. The searchable
electronic record comprises (i) a marked-up digital image
comprising a digital image of a geographic area comprising the dig
area, and at least one digital representation, marked on the
digital image of the geographic area, of the at least one physical
locate mark, and (ii) a data set associated with the marked-up
digital image, the data set including information relating to the
locate operation. The method further comprises B) verifying, based
at least in part on the electronically recalled searchable
electronic record, whether the at least one digital representation
of the at least one physical locate mark in the marked-up digital
image accurately reflects the presence or the absence of the at
least one underground facility within the dig area; C) altering the
searchable electronic record, via a user interface device
associated with the display device, to indicate completion of B);
and D) electronically transmitting and/or electronically storing
the altered searchable electronic record so as to facilitate the
excavation activities and/or an investigation thereof.
[0041] It should be appreciated that all combinations of the
foregoing concepts and additional concepts discussed in greater
detail below (provided such concepts are not mutually inconsistent)
are contemplated as being part of the inventive subject matter
disclosed herein. In particular, all combinations of claimed
subject matter appearing at the end of this disclosure are
contemplated as being part of the inventive subject matter
disclosed herein. It should also be appreciated that terminology
explicitly employed herein that also may appear in any disclosure
incorporated by reference should be accorded a meaning most
consistent with the particular concepts disclosed herein.
BRIEF DESCRIPTION OF THE DRAWINGS
[0042] The accompanying drawings, which are incorporated in and
constitute a part of this specification, illustrate one or more
embodiments described herein and, together with the description,
explain these embodiments. In the drawings:
[0043] FIG. 1 is a diagram of an exemplary searchable electronic
record of a locate operation, according to one embodiment of the
present invention;
[0044] FIG. 2 is a diagram of an exemplary network in which the
various inventive concepts described herein may be implemented,
according to one embodiment of the present invention;
[0045] FIG. 3 is a diagram of exemplary components of the user
device of FIG. 2;
[0046] FIG. 4 is a diagram of exemplary components of the central
server of FIG. 2;
[0047] FIG. 5 is a diagram of exemplary software routines for
components of FIG. 2;
[0048] FIG. 6 is a flowchart of an exemplary process for creating
an electronic manifest of underground facility locate marks,
according to one embodiment of the present invention;
[0049] FIG. 7 is a diagram of an exemplary data set that may be
stored in the memory of FIG. 3 and/or FIG. 4, according to one
embodiment of the present invention;
[0050] FIG. 8 is a diagram of an exemplary user interface that may
be presented via the user device of FIG. 2, according to one
embodiment of the present invention;
[0051] FIG. 9 is a diagram illustrating various elements of a
searchable electronic record of a locate operation according to one
embodiment of the present invention;
[0052] FIG. 10 shows a sketch 1000, representing an exemplary input
image;
[0053] FIG. 11 shows a map 1100, representing an exemplary input
image;
[0054] FIG. 12 shows a facility map 1200, representing an exemplary
input image;
[0055] FIG. 13 shows a construction/engineering drawing 1300,
representing an exemplary input image;
[0056] FIG. 14 shows a land survey map 1400, representing an
exemplary input image;
[0057] FIG. 15 shows a grid 1500, overlaid on the
construction/engineering drawing 1300 of FIG. 14, representing an
exemplary input image; and
[0058] FIG. 16 shows a street level image 1600, representing an
exemplary input image.
DETAILED DESCRIPTION
[0059] The following detailed description refers to the
accompanying drawings. The same reference numbers in different
drawings may identify the same or similar elements. Also, the
following detailed description does not limit the invention.
OVERVIEW
[0060] FIG. 1 is a diagram illustrating an exemplary searchable
electronic record, or "electronic manifest," of a locate operation,
according to one embodiment of the present invention. When locating
underground facilities at a geographic location, such as at a dig
area 100 associated with a residence or a business, it may be
beneficial to document locate marks in a permanent and reproducible
manner. For example, a locate technician may locate and mark
underground facilities using a locating device and/or a marking
device. A locating device may generally be defined as a locating
wand or another device used to detect the presence of underground
facilities, while a marking device may generally be defined as any
tool (e.g., a paint wand) to apply a physical locate mark, such as
paint or other material to a surface. The locate technician may use
paint, flags, or some other object with a particular color or other
characteristic to mark the location of an underground facility.
Referring to the example shown in FIG. 1, the locate technician may
use red paint to mark underground power lines 110, orange paint to
mark telecommunications (e.g., telephone and/or cable television)
lines 120, and yellow paint to mark gas lines 130.
[0061] The locate technician may also identify one or more
environmental landmarks that are present at or near the dig area
and/or determine the distance between the environmental landmark(s)
and the located underground facility. For example, a transformer
140 may be indicated as an environmental landmark, as shown in FIG.
1. The geographic location of transformer 140 may be used to
measure offsets to other locate marks in the dig area.
[0062] As described herein, documentation of some or all of this
information regarding a locate operation is created as a searchable
electronic record, also referred to herein as "an electronic
manifest." An electronic manifest, as used herein, may generally
refer to one or more computer-readable files that include some or
all of the information in a manifest. The electronic manifest may
be created using one or more input images of a dig area, such as
dig area 100, that may be combined with other information (e.g.,
non-image information) that is added by the user (e.g., a locate
technician) about the locate operation. In other implementations,
an electronic manifest may be created using one or more input
images of a dig area combined with information about locate marks
that is provided by other sources. Other implementations may use
one or more input images of a dig area combined with information
that is added by the user and information that is provided by other
sources. As used herein, a "user" may refer to any person operating
a device to create an electronic manifest, such as a locate
technician, a site supervisor, or any other person or group of
people.
[0063] Accordingly, various embodiments of the present invention
are directed to methods, apparatus and systems for creating a
searchable electronic record, or "electronic manifest," relating to
a geographic area including a dig area to be excavated or otherwise
disturbed. As part of the electronic record, the geographic
location of one or more physical locate marks, applied to the dig
area during a locate operation to indicate a presence (or absence)
of one or more located underground facilities, is somehow
identified with respect to its immediate surroundings in the
geographic area.
[0064] To create such an electronic record, in one exemplary
implementation one or more input images relating to the geographic
area including the dig area may be utilized. For example, source
data representing one or more input images of a geographic area
including the dig area is received and/or processed so that the
input image(s) may be displayed on a display device. The geographic
location of the physical locate mark(s) is then indicated in some
manner on the displayed input image(s) so as to generate one or
more marked-up images constituting at least a portion of the
electronic record. For example, geographic locations of the
physical locate mark(s) may be indicated in the marked-up image(s)
using digital representation(s) of the physical locate mark(s)
("locate mark indicators") that are added to the marked-up
image(s). In other implementations, the input image need not
necessarily be displayed to add one or more locate mark indicators;
for example, geographic information relating to one or more
physical locate marks applied to the dig area may be received and
locate mark indicator(s) may be added to the input image based on
the geographic information, without requiring display of the input
image.
[0065] In some implementations of the inventive concepts disclosed
herein, the searchable electronic record may include a variety of
non-image information regarding the locate operation (e.g., a text
description of the geographic location of the dig area, an address
or lot number of a property within which the dig area is located,
geo-encoded information such as geographic coordinates relating to
the physical locate mark(s) and/or various aspects of the
geographic area surrounding the physical locate mark(s), a
timestamp for the locate operation, one or more identifiers for a
locate technician and/or a locate company performing the locate
operation, information regarding one or more environmental
landmarks, etc.). The marked-up image(s) and the non-image
information may be formatted in a variety of manners in the
searchable electronic record; for example, in one implementation
the non-image information may be included as metadata associated
with the marked-up image(s), while in other implementations the
marked-up image(s) and the non-image information may be formatted
as separate data sets. These separate data sets may be transmitted
and/or stored separately. In another aspect, whether
transmitted/stored separately or together, the marked-up image(s)
and the non-image information may be linked together in some manner
as relating to a common electronic record.
[0066] As may be observed from FIG. 1, an input image serving as a
starting point for creating a searchable electronic record
according to various embodiments of the present invention may be
displayed (e.g., on a laptop computer), and the displayed input
image provides a view of the geographic area including dig area 100
(which, in FIG. 1, is essentially an entire property surrounding a
building). Various embodiments relating to the inventive concepts
disclosed herein enable locate technicians or other users to
indicate a geographic location of physical locate mark(s) applied
to the dig area during a locate operation on one or more displayed
input images. For purposes of the present disclosure, an input
image is any image represented by source data that is
electronically processed (e.g., the source data is in a
computer-readable format) to display the image on a display device.
An input image may include any of a variety of paper/tangible image
sources that are scanned (e.g., via an electronic scanner) or
otherwise converted so as to create source data (e.g., in various
formats such as XML, PDF, JPG, BMP, etc.) that can be processed to
display the input image. An input image also may include an image
that originates as source data or an electronic file without
necessarily having a corresponding paper/tangible copy of the image
(e.g., an image of a "real-world" scene acquired by a digital still
frame or video camera or other image acquisition device, in which
the source data, at least in part, represents pixel information
from the image acquisition device).
[0067] In some exemplary implementations, input images according to
the present disclosure may be created, provided, and/or processed
by a geographic information system (GIS) that captures, stores,
analyzes, manages and presents data referring to (or linked to)
location, such that the source data representing the input image
includes pixel information from an image acquisition device
(corresponding to an acquired "real world" scene or representation
thereof), and/or spatial/geographic information ("geo-encoded
information"). In this manner, a GIS provides a framework for data
manipulation and display of images that may facilitate one or more
of (a) location verification, (b) location correlation, (c)
locational relationships, (d) district coding, (e) route analysis,
(f) area analysis and (g) mapping/display creation, for
example.
[0068] In view of the foregoing, various examples of input images
and source data representing input images according to the present
disclosure, to which the inventive concepts disclosed herein may be
applied, include but are not limited to: [0069] Manual "free-hand"
paper sketches of the geographic area (which may include one or
more buildings, natural or man-made landmarks, property boundaries,
streets/intersections, public works or facilities such as street
lighting, signage, fire hydrants, mail boxes, parking meters,
etc.). FIG. 10 shows an exemplary sketch 1000; [0070] Various maps
indicating surface features and/or extents of geographical areas,
such as street/road maps (e.g., map 1100 of FIG. 11), topographical
maps, military maps, parcel maps, tax maps, town and county
planning maps, call-center and/or facility polygon maps, virtual
maps, etc. (such maps may or may not include geo-encoded
information); [0071] Facility maps illustrating installed
underground facilities, such as gas, power, telephone, cable, fiber
optics, water, sewer, drainage, etc. Facility maps may also
indicate street-level features (streets, buildings, public
facilities, etc.) in relation to the depicted underground
facilities. Examples of facility maps include CAD drawings that may
be created and viewed with a GIS to include geo-encoded information
(e.g., metadata) that provides location information (e.g.,
infrastructure vectors) for represented items on the facility map.
An exemplary facility map 1200 is shown in FIG. 12; [0072]
Architectural, construction and/or engineering drawings and virtual
renditions of a space/geographic area (including "as built" or
post-construction drawings). An exemplary construction/engineering
drawing 1300 is shown in FIG. 13; [0073] Land surveys, i.e., plots
produced at ground level using references to known points such as
the center line of a street to plot the metes and bounds and
related location data regarding a building, parcel, utility,
roadway, or other object or installation. FIG. 14 shows an
exemplary land survey map 1400; [0074] A grid (a pattern of
horizontal and vertical lines used as a reference) to provide
representational geographic information (which may be used "as is"
for an input image or as an overlay for an acquired "real world"
scene, drawing, map, etc.). An exemplary grid 1500, overlaid on
construction/engineering drawing 1300, is shown in FIG. 15. It
should be appreciated that the grid 1500 may itself serve as the
input image (i.e., a "bare" grid), or be used together with another
underlying input image; [0075] "Bare" data representing geo-encoded
information (geographical data points) and not necessarily derived
from an acquired/captured real-world scene (e.g., not pixel
information from a digital camera or other digital image
acquisition device). Such "bare" data may be nonetheless used to
construct a displayed input image, and may be in any of a variety
of computer-readable formats, including XML); and [0076]
Photographic renderings/images, including street level (see e.g.,
street level image 1600 of FIG. 16), topographical, satellite, and
aerial photographic renderings/images, any of which may be updated
periodically to capture changes in a given geographic area over
time (e.g., seasonal changes such as foliage density, which may
variably impact the ability to see some aspects of the image); and
[0077] An image, such as any of the above image types, that
includes one or more dig area indicators, or "virtual white lines,"
that provide one or more indications of or graphically delimit a
dig area, as described in U.S. patent application Ser. No.
12/366,853, incorporated by reference herein. The virtual white
lines may include lines, drawing shapes, shades, symbols,
coordinates, data sets, or other indicators that are added to an
image, and may assist a locate technician in the performance of a
locate operation by identifying the area of interest, i.e., the dig
area. In this manner, a searchable electronic record according to
the concepts disclosed herein may be generated based on a
previously marked-up input image on which the dig area is
indicated.
[0078] It should also be appreciated that source data representing
an input image may be compiled from multiple data/information
sources; for example, any two or more of the examples provided
above for input images and source data representing input images,
or any two or more other data sources, can provide information that
can be combined or integrated to form source data that is
electronically processed to display an image on a display
device.
[0079] As noted above, in some implementations an input image may
be indexed to Global Positioning System (GPS) coordinates or
another coordinate system that provides geo-spatial positioning. An
input image may include geo-coding or other geographical
identification metadata and may be provided in any
computer-readable format. An input image may also include images of
map symbols, such as roads and street names, that may be
superimposed upon or displayed separately from an underlying
geographic area when the input image is displayed on a display
device.
[0080] With reference again to FIG. 1, it may be observed that the
dig area 100 is indicated in the displayed input image by a dig
area indicator or virtual white line 150. As noted above, in one
embodiment the input image may have been received with one or more
dig area indicators previously provided so that the dig area may be
readily identified in the displayed input image. While FIG. 1
illustrates a virtual white line 150 as an essentially continuous
line delimiting a boundary of the dig area, it should be
appreciated that one or more dig area indicators are not limited in
this respect, and that such indicators may include lines having
various colors and line-types (dashed, dotted, etc.), drawing
shapes, shades, symbols, etc., and need not necessarily delimit an
entire boundary of a dig area. Additionally, as also noted above,
it should be appreciated that in some embodiments an input image
need not include any dig area indicators to provide a foundation
for generating a searchable electronic record of a locate
operation.
[0081] In FIG. 1, digital representations of the physical locate
marks applied to a dig area (e.g., corresponding to power lines
110, telecommunications lines 120 and gas lines 130 shown in FIG.
1), may be added to the displayed input image to graphically
indicate the geographic locations of the physical locate marks in
the dig area 100. Representations of the physical locate marks,
also referred to as "locate mark indicators," may be added to the
displayed input image through the use of a drawing application or
marking tool application, which may superimpose over or otherwise
display one or more locate mark indicators on the displayed input
image. As used herein, "representations of physical locate marks"
or "locate mark indicators" may include lines, drawing shapes,
shades, symbols, coordinates, data sets, or other indicators to
provide one or more indications of the geographic locations of the
physical locate marks on a displayed input image. As discussed
further below, a given locate mark indicator may have an associated
attribute representing a type of underground facility corresponding
to the physical locate mark(s) applied to the dig area. Examples of
different attributes for a locate mark indicator include, but are
not limited to, color, line-type, symbol-type, shape, shade, etc.
(e.g., a first locate mark indicator for a gas line may include a
green dashed-line, a second locate mark indicator for a fiber optic
cable may include a red dotted-line, a third locate mark indicator
for an electric line may include one or more gray diamond shapes
arranged along a path traversed in the input image by the buried
electric line, etc.).
[0082] In some exemplary embodiments described herein, the
marked-up images having one or both of locate mark indicators and
dig area indicators ("virtual white lines"), as well as non-image
information, may form part of the searchable electronic record, and
information regarding the searchable electronic record (and in some
instances the record itself) may be electronically transmitted
and/or stored to facilitate verification of the locate operation.
In one implementation, the non-image information may include a
series of geographical coordinates representing the locate mark
indicator(s). These marked-up images and coordinates enable
documentation of where the physical locate marks were made, even
after the physical locate marks no longer exist. Such documentation
may be important in the event of accidental damage to an
underground facility or another event triggering a dispute
concerning whether the underground facilities were appropriately
marked. Further, documentation provided by the searchable
electronic records according to the present disclosure may be
helpful for training locate technicians, assessing the quality of
locate operations, and ensuring that locate operations have
actually and/or accurately been performed without a need to visit
the dig site thereafter. An electronic record comprising the
marked-up image may be stored for later retrieval, and may be
searchable. For example, data embedded within or otherwise
associated with the marked-up image may be searchable (e.g., via a
search engine) using key words.
Exemplary Network
[0083] FIG. 2 is a diagram of an exemplary network 200 in which
systems and methods described herein may be implemented. As shown
in FIG. 2, the network 200 may include a user device 210 connected
to a central server 220 and an image server 230 via a network 240.
A single user device 210, central server 220, and image server 230
have been illustrated as connected to network 240 for simplicity.
In practice, there may be more or fewer user devices and/or
servers. For example, in one alternative implementation, the user
device 210 may operate as a comprehensive device and, thus, the
network 200 may include no central server, with user device 210
communicating directly through network 240 to image server 230.
Also, in some instances, the user device 210 may perform one or
more of the functions of the central server 220 and/or central
server 220 may perform one or more of the functions of the user
device 210. In still another implementation, multiple user devices
210 may be connected to the central server 220 through the network
240.
[0084] The user device 210 may encompass a computer device, such as
a laptop computer, a small personal computer, a tablet device, a
personal digital assistant (PDA), a mobile computing device, a
touch-screen device, or generally any device including or
connecting to a processor and a display. The user device 210 may be
portable so as to be separately carried by the user performing a
locate operation. Alternatively, the user device 210 may be
integrated with or affixed to another moveable object, such as a
vehicle.
[0085] The central server 220 may include a computer device that
may store information received from or provided to the user device
210 and/or the image server 230. The central server 220 may include
storage capacity and/or optionally include networked access to one
or more separate hardware components, such as images cache 235, to
store cached images and the like.
[0086] The image server 230 may include a computer device that may
store and provide input images of geographic locations The image
server 230 may be associated with the same, or a different, party
that maintains the central server 220. For example, the image
server 230 may be associated with a party that provides input
images for a fee.
[0087] The network 240 may include a local area network (LAN), a
wide area network (WAN), a telephone network, such as the Public
Switched Telephone Network (PSTN) or a cellular network, an
intranet, the Internet, a communications link, or a combination of
networks. The user device 210, central server 220, and image server
230 may connect to the network 240 via wired and/or wireless
connections. The user device 210 and central server 220 may
communicate using any communication protocol.
Exemplary User Device Architecture
[0088] FIG. 3 is a diagram of exemplary components of the user
device 210. The user device 210 may include a bus 310, a processing
unit 320, a memory 330, an input device 340, an output device 350
(e.g., a display device), a location identification unit 360, and a
communication interface 370. In another implementation, the user
device 210 may include more, fewer, or different components. For
example, the location identification unit 360 may not be included,
or the location identification unit 360 may be included as a device
located external to the user device 210, such as a device worn or
carried by a user of the user device 210.
[0089] The bus 310 may include a path that permits communication
among the components of the user device 210. The processing unit
320 may include a processor, a microprocessor, or processing logic
that may interpret and execute instructions. The memory 330 may
include a random access memory (RAM), a read only memory (ROM), a
memory card, a magnetic and/or optical recording medium and its
corresponding drive, or another type of memory device. Generally,
the memory 330 may be sufficient to store and manipulate input
images, such as those stored in a local image cache 335. In one
implementation, the local image cache 335 may include one or more
input images of a dig area to be marked by a user. In another
implementation, the local image cache 335 may include a series of
input images that correspond to the geographical region to which a
particular user is assigned. For example, local image cache 335 may
include a collection of high-resolution images of a particular zip
code or town. In still another implementation, the local image
cache 335 may include an entire set of input images intended to be
made available to multiple users.
[0090] The input device 340 may include one or more mechanisms that
permit a user to input information to the user device 210, such as
a keyboard, a keypad, a touchpad, a mouse, a stylus, a touch
screen, a camera, or the like. Alternatively, or additionally, the
input device 340 may include a microphone that can capture a user's
intent by capturing the user's audible commands. Alternatively, or
additionally, the input device 340 may interact with a device that
monitors a condition of the user, such as eye movement, brain
activity, or heart rate. The output device 350 may include a
mechanism that outputs information to the user, such as a display,
a speaker, or the like. The condition information may be used to
assess the reliability of the user inputs that are used to generate
the marked-up image or other aspects of the electronic record. For
example, if the monitored heart rate of the user is sufficiently
high as to indicate that the user is under stress, the reliability
of the user inputs may be assessed as poor.
[0091] The location identification unit 360 may include a device
that can determine its geographic location to a certain degree of
accuracy, such as a global positioning system (GPS) or a global
navigation satellite system (GNSS) receiver. In another
implementation, the location identification unit 360 may include a
device that determines location using another technique, such as
tower (e.g., cellular tower) triangularization. The location
identification unit 360 may receive location tracking signals
(e.g., GPS signals) and determine its location based on these
signals. In one implementation, location identification unit 360
may be capable of determining its location within approximately
thirty centimeters or less.
[0092] The communication interface 370 may include any
transceiver-like mechanism that enables user device 210 to
communicate with other devices and/or systems. For example, the
communication interface 370 may include mechanisms for
communicating with another device or system via a network. For
example, the communication interface 370 may enable communications
between the user device 210 and the central server 220 and/or image
server 230 over network 240.
[0093] As will be described in detail below, user device 210 may
perform certain operations relating to the documentation of locate
operations and/or the creation of an electronic manifest. User
device 210 may perform these operations in response to the
processing unit 320 executing software instructions contained in a
computer-readable medium, such as the memory 330. A
computer-readable medium may be defined as a physical or logical
memory device.
[0094] The software instructions may be read into the memory 330
from another computer-readable medium, or from another device via
the communication interface 370. The software instructions
contained in the memory 330 may cause processing unit 320 to
perform processes that will be described later. Alternatively,
hardwired circuitry may be used in place of, or in combination
with, software instructions to implement processes described
herein. Thus, implementations described herein are not limited to
any specific combination of hardware circuitry and software.
Exemplary Central Server Architecture
[0095] FIG. 4 is a diagram of exemplary components of the central
server 220. The central server 220 may include a bus 410, a
processing unit 420, a memory 430, and a communication interface
440. In another implementation, the central server 220 may include
more, fewer, or different components. For example, an input device
and/or an output device (not shown) may be included, as
necessary.
[0096] The bus 410 may include a path that permits communication
among the components of the central server 220. The processing unit
420 may include a processor, a microprocessor, or processing logic
that may interpret and execute instructions. The memory 430 may
include a magnetic and/or optical recording medium and its
corresponding drive, a RAM, a ROM, a memory card, or another type
of memory device suitable for high capacity data storage.
Generally, the memory 430 may be sufficient to store input images
of particular geographic locations, such as those stored in a
central image cache 435. In one implementation, the central image
cache 435 may include a set of input images that correspond to the
geographical regions to which a group of users are assigned. In
still another implementation, the central image cache 435 may
include the entire set of input images intended to be made
available to any of a group of users. For example, central image
cache 435 may include a collection of high-resolution input images
of a particular county, state or other geographic region. In
another implementation, as shown in FIG. 2, central image cache 435
may be replaced or supplemented with one or more networked storage
components, such as image cache 235.
[0097] The communication interface 440 may include any
transceiver-like mechanism that enables the central server 220 to
communicate with other devices and/or systems. For example, the
communication interface 440 may include mechanisms for
communicating with another device or system via a network. For
example, the communication interface 440 may enable communications
between the central server 220 and the user device 210 and/or image
server 230 over network 240.
[0098] As will be described in detail below, the central server 220
may perform certain operations to facilitate the documentation of
locate operations and/or the creation of an electronic manifest.
The central server 220 may perform these operations in response to
the processing unit 420 executing software instructions contained
in a computer-readable medium, such as the memory 430.
[0099] The software instructions may be read into the memory 430
from another computer-readable medium, or from another device via
the communication interface 440. The software instructions
contained in the memory 430 may cause processing unit 420 to
perform processes that will be described later. Alternatively,
hardwired circuitry may be used in place of or in combination with
software instructions to implement processes described herein.
Thus, implementations described herein are not limited to any
specific combination of hardware circuitry and software.
Exemplary Routines
[0100] FIG. 5 is a diagram of exemplary software routines for the
components shown in FIG. 2. The central server 220 may include an
image retrieval routine 520 and a central image cache routine 510.
The user device 210 may include a synchronize routine 530, a local
image cache routine 540, an image display routine 550, a user input
routine 560, and a ticket manager routine 570. As discussed in more
detail herein, the examples of routines associated with the central
server 220 and the user device 210 may be interchangeable between
each hardware component. Furthermore, some or all of routines 510,
520, 530, 540, 550, 560, and 570 need not be performed exclusively
by any one hardware component.
[0101] Still referring to FIG. 5, the image server 230 may store a
library of input images. Generally, input images such as aerial
images may be of sufficient resolution at an optimal elevation to
be useful as a record of the locate operation. The input images
from the image server 230 may include geocoding or other
geographical identification metadata and may be provided in any
computer-readable format, such as JPEG file interchange format
(JPEG), tagged image file format (TIFF), portable document format
(PDF), graphics interchange format (GIF), bitmap (BMP), portable
network graphics (PNG), Windows.RTM. metafile (WMF), and/or the
like. Also, input images from the image server 230 may include a
combination of images or overlays, such as overlays of street
names, regions, landmark descriptions, and/or other information
about areas displayed in an image. The input images from the image
server 230 may be supplied by a third-party provider if the
coverage area of the third-party image provider overlaps with the
desired area of the user.
[0102] The central image cache routine 510 and the image retrieval
routine 520 of the central server 220 may include a variety of
functionalities. In certain implementations, the central image
cache routine 510 may receive information about specific tickets
and parse tickets in order to discern location information. For
example, a ticket may identify the dig area by an address of the
property or by geographic coordinates. The ticket might specify,
for example, the address or description of the dig area to be
marked, the day and/or time that the dig area is to be marked,
and/or whether the user is to mark the dig area for
telecommunications (e.g., telephone and/or cable television),
power, gas, water, sewer, or some other underground facility.
[0103] The central image cache routine 510 may also convert dig
area location information to latitude/longitude coordinates or
other coordinates. When location information from a ticket is
sufficiently precise to allow for identification of corresponding
imagery, the central image cache routine 510 may calculate the
image extent (which may be generally defined as the bounding region
of the dig area of interest), and update the ticket with the
calculated extent. In one implementation, the central image cache
routine 510 may determine image date, coordinates, and resolution
of each image that may be stored in the central image cache 435 or
in another location. In another implementation, when location
information from a ticket is imprecise (or "fuzzy"), the central
image cache routine 510 may mark the ticket to indicate that no
corresponding image was able to be retrieved based on the ticket
information.
[0104] In another implementation, central image cache 510 may
identify an image to retrieve based on GPS coordinates of a
GPS-enabled device associated with a user. For example, a user may
arrive at an excavation site in a GPS-enabled vehicle and the GPS
information from the vehicle may be used to identify coordinates
corresponding to an image to be retrieved. GPS coordinates may also
be obtained from other GPS-enabled devices being used by or in the
vicinity of the user. As used herein a GPS-enabled device may
include any device or combination of devices capable of interfacing
with a global navigation satellite system, geo-spatial positioning
system, or other location-identification system to determine a
location. Examples of GPS-enabled devices may include a marking
device (e.g., a paint wand) with an integrated GPS receiver; a
locating device (e.g., a locating wand) with a GPS receiver; a
wearable GPS-enabled device; a vehicle-mounted GPS system; certain
PDAs, computers, and cellular telephones; and stand-alone
GPS-enabled systems.
[0105] In still another implementation, central image cache 510 may
identify one or more images to request based on a designated
geographical area assigned to a user. For example, a user may be
assigned to work in several dig areas associated with a particular
section of a neighborhood. The user may input coordinates
associated with the entire selected section of the neighborhood,
and central image cache 510 may then retrieve images for those
coordinates.
[0106] The image retrieval routine 520 catalogues and stores images
from the image server 230 to the central server 220. For example,
images may be stored in the central image cache 435 in the memory
430 of the central server 220. In one implementation, the image
retrieval routine 520 may query the central image cache 435 or
other cache for an image associated with a particular dig area
relating to a ticket of interest, and determine, based on (for
example) the age and resolution of the cached image, whether the
image in the central image cache 435 needs to be updated from the
image server 230.
[0107] In another implementation, the image retrieval routine 520
may interface with multiple image providers and image servers 230.
The image retrieval routine 520 may determine which image provider
is the best source for the image corresponding to a particular dig
area relating to a ticket of interest based on algorithms that
factor, for example, each image provider's geographical coverage,
image resolution, cost, and availability. Regarding geographical
coverage, it will be beneficial to confirm that the image
provider's area of coverage includes the desired extent (in other
words, the entire geographical region of interest to the user).
[0108] Regarding image resolution, available resolution may be
measured in meters (or centimeters, feet, or inches) per pixel. For
example, one provider may offer thirty centimeters per pixel, while
another offers fifteen centimeters or less per pixel, for the same
coverage area. If an image is requested at a standard altitude,
then the image retrieval routine 520 may choose a pre-defined
optimal scale (for example, thirty centimeters per pixel for a
rural area, but fifteen centimeters per pixel for an urban area)
and determine which provider provides images at the pre-defined
optimal scale. Alternatively, if the image of interest is at a less
granular scale (for example, a community or neighborhood image that
allows the locator to pan around the image), then resolution may
not be a significant factor.
[0109] Regarding cost, the image retrieval routine 520 may have
access to pricing information for a variety of image providers. The
image retrieval routine 520 may identify which provider has the
lowest cost for the desired image. Cost analysis may be based on
images desired for an individual ticket or the algorithm may
account for a group of image requests, including volume incentives
and/or penalties from each image provider
[0110] Regarding availability of image providers, the image
retrieval routine 520 may identify what providers are available
and/or operational. Also, if an image provider has a regular
latency profile (for example, if a provider has a particular server
that is busiest 3-5 PM Pacific time), then the image retrieval
routine 520 may manage requests to be provided to another image
provider or to a particular server of that image provider to
efficiently load share the image retrieval.
[0111] When an image provider is selected, the image retrieval
routine 520 may download the image from the selected image
provider's server, which may be an image server 230. The downloaded
image may be stored locally, for example, in the central image
cache 435.
[0112] It should be understood that some of the routines and/or
functionalities described above with respect to the central image
cache routine 510 and the image retrieval routine 520 may be
performed by one or both of the routines 510 and 520 above, and the
arrangement of functionalities are not limited to the
implementations disclosed herein.
[0113] The synchronize routine 530 for user device 210 may ensure
that images already stored and manipulated on the user device 210
correspond to images stored in the central server 220. When a user
performing a locate operation identifies a ticket or dig area, the
synchronize routine 530 may check if an image exists in the central
server 220 that matches the extent requested, and if the matching
image is up-to-date in, for example, the local image cache 335. The
synchronize routine 530 may also synchronize images from the
central server 220 cache and store copies locally in the user
device 210.
[0114] If the ticket has a valid extent (i.e., a recognizable
boundary), the local image cache routine 540 may associate the
ticket information with an image matching the extent. The local
image cache routine 540 may load the image from the local image
cache 335. If the ticket does not have a valid extent, the local
image cache routine 540 may accept address information that is
entered by the user. Alternatively, the local image cache routine
540 may read the local address information from the ticket or from
a GPS-enabled device in communication with the user device 210 so
that address information may be pre-entered for the user to the
extent possible. Address information may include, for example, a
street address, street name, city, state and/or zip code. If either
none or multiple stored addresses appear to be associated with
particular address information, the local image cache routine 540
may display a list of best match addresses from which a user can
select.
[0115] Once an image is loaded from the local cache 335, image
display routine 550 may provide a variety of view options for the
user. For example, the image display routine 550 may support
zooming in and out of the image by changing the image scale. Also,
the image display routine 550 may support panning horizontally and
vertically in the image. Furthermore, the image display routine 550
may support "roaming" outside the boundaries of the initial extent.
Roaming generally occurs when the user zooms or pans, such that
images beyond the boundaries of the stored images may be required
to be retrieved (using, for example, synchronize routine 530) from
either the local image cache 335 or the central server 220. The
additional images retrieved from either the local image cache 335
or the central server 220 may be displayed and stitched together to
display a complete image.
[0116] The user input routine 560 allows the user to add
information to the image to create an electronic manifest. The user
input routine 560 may accept user input from, for example, input
device 340, and may support the addition of lines, freehand forms
(or scribbling), shapes such as circles and rectangles, shading, or
other markings which denote the approximate location of underground
facilities which are present within the dig area. A drawing shape
may generally be any kind of drawing shape or mark. The user input
routine 560 may further enable drawing of underground facility
locate marks for telecommunications (e.g., telephone and cable
television), gas, power, water, sewer, and the like, so that each
type of drawn locate mark is distinguishable from the other(s). The
user input routine 560 may limit the display of such facilities by
the type of work which is to be performed according to the
instructions included within the user's assigned ticket.
Accordingly, a given locate mark indicator, serving as a digital
representation of a physical locate mark applied to the dig area,
may have an associated attribute representing a type of underground
facility corresponding to the physical locate mark. Examples of
different attributes for a locate mark indicator include, but are
not limited to, color, line-type, symbol-type, shape, shade, etc.
(e.g., a first locate mark indicator for a gas line may include a
green dashed-line, a second locate mark indicator for a fiber optic
cable may include a red dotted-line, a third locate mark indicator
for an electric line may include one or more gray diamond shapes
arranged along a path traversed in the input image by the buried
electric line, etc.).
[0117] In addition to the marking of the underground facility
locate marks on the input image, user input routine 560 may also
include offsets from environmental landmarks that may be displayed
on the image in, for example, English or metric units.
Environmental landmarks may also be marked and/or highlighted on
the input image. The user input routine 560 may also accept
positioning information from external sources, such as a
GPS-enabled device. The user input routine 560 may further include
features to annotate the image with text and to revise user inputs
by, for example deleting, dragging or pasting shapes. In one
implementation, when the user zooms the image view in or out, user
input (e.g., lines and/or shapes) that have been added to the
original image may adhere to the changing image scale and remain in
the original user-input locations.
[0118] The electronic manifest, which is a compilation of one or
more input images and user inputs, may be saved as an image file.
In another implementation, the user inputs may be saved in a
mark-up format, including the geo-coordinates and underground
facility type of each input.
[0119] In one implementation, the user device 210 may interface
with a ticket management program for coordinating multiple tickets.
The ticket manager routine 570 may facilitate such an interface.
The ticket management program for coordinating multiple tickets may
reside on the central server 220, for example, or on a separate
server that is accessible to the user device 210. Generally,
tickets may be stored on a central server and assigned to a user.
When a user edits a ticket, the user may also have created an
electronic manifest associated with the ticket. The ticket manager
routine 570 may allow the user to synchronize the user's ticket
cache with the company's central database and also synchronize the
images and user input. The ticket manager routine 570 may copy
images from the central server 220 to the user device 210 for new
tickets, and will copy the user input from the user device 210 to
the central server 220 for completed tickets. The ticket manager
routine 570 may interface with the routines described above to
correlate a user's assigned tickets with images for those tickets
and download the images to the user device from the central server
220. The ticket manager routine 570 may retrieve the corresponding
ticket number from the ticket management program when the user
retrieves an image, or the ticket manager routine 570 may retrieve
the image corresponding to an entered ticket number.
[0120] FIG. 6 provides a flowchart 600 of an exemplary process for
creating an electronic manifest relating to a locate operation and
the application of locate marks to a dig area to indicate a
presence (or absence) of one or more underground facilities. In one
implementation, at least some of the blocks of FIG. 6 may be
performed using user device 210 (FIG. 2). In another
implementation, one or more of the blocks of FIG. 6 may be manually
performed or performed by another device, such as central server
220.
[0121] The process 600 may begin with a user being dispatched to a
dig area to be located, in response to a locate request ticket
being generated for a locate operation. For example, the user might
be given a ticket that identifies what underground facilities the
user needs to locate at the dig area. The ticket might specify, for
example, the address or description of the dig area to be located,
the day and/or time that the dig area is to be located, and/or
whether the user is to locate the dig area for telecommunications,
power, gas, water, sewer, or other underground facility. Based on
information in the ticket, or other information about the dig area
to be located, user device 210 in block 610 may associate the
property address with a stored input image of the dig area. Such
association may include associating the address with geographic
location information, such as global positioning coordinates for
the dig area extent (or boundary).
[0122] In one exemplary embodiment, the locate request ticket may
be an electronic locate request ticket that comprises a previously
marked-up image of a geographic area including the dig area, on
which one or more dig area indicators, or "virtual white lines,"
were placed (e.g., by an excavator or a one-call center) to provide
an indication of the dig area. In this manner, an electronic locate
request ticket received by a locate company or locate technician
may include both image data and non-image data; for example, a
locate request ticket may include a marked-up image with one or
more dig area indicators, as well as associated non-image
information providing additional details of the locate operation to
be performed, as noted above. Further details of locate request
tickets including marked-up images with one or more dig area
indicators are given in U.S. patent application Ser. No.
12/366,853, filed Feb. 6, 2009, entitled "Virtual White Lines for
Indicating Planned Excavation Sites on Electronic Images," which
application is incorporated by reference herein.
[0123] In block 620, the stored input image associated with the dig
area to be located is retrieved from a cache of images and loaded
into the user device 210. As previously described and discussed
herein with respect to FIG. 5, the cache of images may reside
within the user device 210, the central server 220, a separate
image server, or another storage device. As discussed above, the
input image may be represented by a wide variety of source data
that, when processed, facilitates display of the input image. In
one exemplary implementation, the input image for the searchable
electronic record may be a previously marked-up image with one or
more dig area indicators or virtual white lines; in one aspect,
such an input image may be received as part of the locate request
ticket specifying the locate operation. In various implementations,
it should be appreciated that the input image may or may not be
displayed, as discussed further below.
[0124] In block 630, the user may perform a locate operation to
locate the underground facilities present within the dig area and
mark the located underground facilities using a locating device
and/or marking device, or a combined locating/marking device. For
example, the user may use the locating device to identify an
underground facility at the dig area, and may use the marking
device to mark the underground facility with the appropriate marker
(e.g., color paint, flag, or some other object). In certain
implementations, information regarding the approximate geographic
location of the applied underground facility locate marks may be
gathered and stored electronically using a GPS-enabled device or
other location identification device. The approximate geographic
location of the underground facility locate marks may be
determined, for example, by identifying the current geographic
location of the GPS-enabled device as the user performs the
locating or marking. In another implementation, a user may use a
triangularization technique to determine the approximate geographic
location of the underground facility locate marks. In yet another
implementation, a user may determine latitude and longitude
coordinates or some other measurement of a geographic location.
[0125] In block 640, information about the approximate geographic
location of the underground facility locate marks may be added to
the input image that was retrieved previously in block 620. The
information about the approximate geographic location of the
underground facility locate marks may be input by the user using an
input device, such as input device 340 (FIG. 3) of user device 210,
and added to the displayed input image as one or more locate mark
indicators. In one exemplary implementation in which the input
image is a previously marked-up image having one or more dig area
indicators, this image may be further marked-up to add one or more
locate mark indicators that are displayed together with the one or
more dig area indicators. Additional aspects regarding information
to be input by the user are discussed in more detail herein with
respect to FIG. 8.
[0126] Still referring to block 640, information about the
approximate geographic location of the underground facility locate
marks may also be received directly from a GPS-enabled device, such
as the GPS-enabled locating device or marking device used in block
630, and overlaid on the input image. In one exemplary
implementation, one or more locate indicator marks based on this
information may be added to the input image automatically, and in
some instances without any requirement to display the input image.
Alternatively, the user may use of a combination of received GPS
information and manual entries to create an electronic manifest of
the underground facility locate marks.
[0127] In block 645, as an optional step, information about offsets
of the underground facility locate marks from environmental
landmarks may be added to the input image. As with the input of the
facility locations in block 640, the location of the environmental
landmarks may be input by the user using an input device, such as
input device 340 (FIG. 3) of user device 210, or automatically
input from a GPS-enabled device. The offset information may be
automatically calculated or input by the user. Offset information
may also be obtained by identifying selected environmental
landmarks on the retrieved image and automatically calculating the
distance from the selected environmental landmarks to the
underground facility locate marks overlaid on the image.
[0128] In block 650, as an optional step, information about the
location of the underground facility locate marks (e.g., the locate
mark indicators added to the input image) may be converted to GPS
coordinates. In block 660, the marked-up input image and other
information (e.g., non-image information) about the location
operation may be stored in memory as a searchable electronic record
or "electronic manifest," which may be formatted as a single
combined image (e.g., image data and non-image metadata) or as
separate image data and non-image data that are linked. In
exemplary implementations, the electronic manifest may be stored
as, for example, a digital image or an interactive electronic map.
Additionally or alternatively, in block 670, the geographical
coordinates of the underground facility locate marks may be stored
in memory, such as memory 330 (FIG. 3), as a separate data set. The
data set may be compiled as, for example, a database of GPS
coordinates. In block 680, the combined image and/or separate data
set may optionally be transmitted to a central location, such as
central server 220 (FIG. 2).
[0129] Thus, the marked-up image(s) and the non-image information
may be formatted in a variety of manners in the searchable
electronic record; for example, in one implementation the non-image
information may be included as metadata associated with the
marked-up image(s), while in other implementations the marked-up
image(s) and the non-image information may be formatted as separate
data sets. These separate data sets may be transmitted and/or
stored separately. In another aspect, whether transmitted/stored
separately or together, the marked-up image(s) and the non-image
information may be linked together in some manner as relating to a
common electronic record.
[0130] In some locate operations, no underground facilities are
determined to be present in a designated dig area. Such locate
operations are sometimes referred to as "clears." In some
implementations of the inventive concepts discussed herein, an
input image may nonetheless be employed to provide an electronic
record of a "clear;" more specifically, although no locate mark
indicators may be added to an input image (i.e., the step 640 may
not be necessary because there are no physical locate marks to
digitally represent), other non-image information associated with
the "clear" locate operation (e.g., a timestamp of when the locate
operation was performed, an identifier for a technician or locate
company performing the locate operation, a text address or other
geographical identifier for the dig area, a location stamp, etc.)
may be associated with the input image (e.g., as a separate data
set linked to the input image, as metadata, a combined file of
image and non-image data, etc.) to create a searchable electronic
record that may be consulted to verify that the locate operation
was indeed completed, even though no underground facilities were
found.
[0131] FIG. 7 is a diagram of an exemplary data set that may be
stored in memory 330 and/or transmitted to server 220. As shown in
FIG. 7, a data set 700 may include a timestamp field 710, an
underground facility identifier field 720, an underground facility
location field 730, an environmental landmark identifier field 740,
an environmental landmark location field 750, an other information
field 760, a facility owner/operator field 765, a marking method
field 770, a property address field 780, a ticket number field 790,
a location stamp field 715, and a certification field 725. In
another implementation, the data set 700 may include additional,
fewer, or different fields.
[0132] Timestamp field 710 may include time data that identifies
the day and/or time that a locate operation was performed. This may
coincide with a time at which an environmental landmark location
was identified in connection with the dig area. The time data in
timestamp field 710 is shown in FIG. 7 as 9:43 a.m. on Oct. 20,
2005--although any type of date and/or time code may be used. The
information in timestamp field 710 may be useful in establishing
when a locate operation occurred.
[0133] The underground facility identifier field 720 may include an
identifier that uniquely identifies the type of underground
facility that was marked. The identifier in underground facility
identifier field 720 is shown in FIG. 7 as "power"--although any
type of identifier may be used. Underground facility location field
730 may include geographic location information corresponding to an
underground facility locate mark. In one implementation, the
geographic location information may include a set of geographic
points along the marking path of the located underground facility.
The geographic location information in underground facility
location field 730 is shown in FIG. 7 as N38.degree. 51.40748,
W077.degree. 20.27798; . . . ; N38.degree. 51.40784, W077.degree.
20.27865--any type of geographic location information may be used.
The information in underground facility location field 730 may be
useful in graphically presenting the underground facility locate
marks on a map, and/or to verify that the locate operation was
actually and accurately performed. Additionally, or alternatively,
underground facility location field 730 may include geographic
location information for multiple underground facility locate
marks.
[0134] Environmental landmark identifier field 740 may include an
identifier that uniquely identifies the type of environmental
landmark being marked. The identifier in environmental landmark
identifier field 740 is shown in FIG. 7 as "curb"--although any
type of identifier may be used.
[0135] Environmental landmark location field 750 may include
geographic location information corresponding to the environmental
landmark identified in environmental landmark identifier field 740.
The geographic location information in environmental landmark
location field 750 is shown in FIG. 7 as N38.degree. 51.40756,
W077.degree. 20.27805; . . . ; N38.degree. 51.40773, W077.degree.
20.27858--although any type of geographic location information may
be used.
[0136] Other information field 760 may store other data that may be
useful, including user notes, such as offset or distance
information that identifies a distance between one or more
environmental landmarks and one or more underground facility locate
marks. Other information field 760 is shown in FIG. 7 as including
"1.2 meters between curb and power line"--although any other data
may be used. Additionally and/or alternatively, other information
field 760 may include audio/voice data, transcribed
voice-recognition data, or the like to incorporate user notes.
[0137] The underground facility owner field 765 may include the
name of the owner/operator of the underground facility that has
been marked during the locate operation. For example, in FIG. 7,
the underground facility owner field 765 is shown as "ABC Corp."
Because multiple underground facilities may be marked during a
single locate operation, it may be beneficial to associate each
marked underground facility with a particular owner/operator.
Alternatively, this field may include one or more identifiers for
the locate company performing the locate operation, or an
additional field may be added to the data set 700 for this
purpose.
[0138] Marking method field 770 may indicate the type of marking
used at the dig area to indicate the location of an underground
facility. For example, in FIG. 7, marking method field 770 is shown
indicating red paint. Property address field 780 may be the
property address associated with the marking recorded in the data
set 700. The property address field 780 may include, for example,
the street address and zip code of the property. Other information
in field 780 may include city, state, and/or county identifiers.
The ticket number field 790 may include the ticket number
associated with the locate operation, such as ticket "1234567"
shown in FIG. 7.
[0139] Location stamp field 715 may include a location stamp
indicating a location where the locate operation was performed
(e.g., the dig area). The location stamp may optionally be
generated at the same time as timestamp 710, and the information
underlying these stamps may be from a same source or otherwise
correlated, such that the location stamp reflects the location of
the locate technician, user device, or associated locate and/or
marking device when the timestamp 710 is generated. The location
stamp may comprise, for example, location coordinates (as shown in
FIG. 7), a city name or designation, a state name or designation, a
county name or designation, and/or an address. Generally, the
location stamp identifies the presence and location of a locate
technician in connection with the locate operation.
[0140] According to one exemplary implementation, location stamp
data is generated by the user device (e.g., by location
identification unit 360) in response to an action associated with a
locate operation (e.g., a marking being made on the electronic
manifest, creation of a new electronic manifest, completion or
certification of an electronic manifest). According to another
exemplary implementation, location stamp data is generated by a
GPS-enabled device associated with a locate technician dispatched
to perform a locate operation (e.g., a GPS-enabled device in the
vehicle and/or on the person of the locate technician), a
GPS-enabled locate and/or marking device operated by the technician
during the locate operation, or another locate and/or marking
device capable of determining its own location. The location stamp
data may then be transmitted from the GPS-enabled device or locate
and/or marking device to the user device alone or in association
with other data (e.g. marking data or locate data). The
transmission may occur, for example, in response to a request by
the user device, a request by the user, or some triggering action.
The location stamp data may be recorded to the data set
automatically (e.g., without user intervention) or in response to
user input.
[0141] It should be appreciated that both the timestamp field 710
and location stamp field 715 may optionally include a plurality of
timestamps and location stamps. For example, each of a plurality of
actions (e.g., markings on the electronic manifest, actuations of
the locate and/or marking device) may be associated with a
particular time stamp and/or location stamp recorded in fields 710
and 715 so that the time and location of various actions associated
with the locate operation can subsequently be determined. The
actions may cause the time stamp and/or location stamp to
automatically be logged. Further, the timestamp field 710 and/or
location stamp field 715 may optionally be "read only" fields.
Prohibiting changes to these fields (e.g., by the locate
technician) may preserve the integrity of the data therein so that
it can be reliably used for verification of the locate
operation.
[0142] Certification field 725 may comprise a certification of the
data in data set 700, e.g., by the locate technician and/or another
reviewer, such as a supervisor or other authorized representative
of the locate company. Such a certification may comprise a
signature, initials, an electronic stamp, or some other indication
that the information in the data set 700 is "certified" (e.g., has
been reviewed and/or is correct/approved).
[0143] In one implementation, the user device 210 may store
multiple data sets corresponding to multiple underground facilities
identified at a particular dig area. User device 210 may provide
the data sets to server 220 in a batch--such as a batch
corresponding to the group of underground facilities documented
within the electronic manifest--or individually. The batch may be
grouped together with other information generally relating to the
locate operation, such as the name of the company responsible for
performing the locate operation, the name of the locate technician,
and the like. Additionally, or alternatively, the other information
generally relating to the locate operation may be included in each
data set.
[0144] FIG. 8 is an exemplary diagram of a user interface 800 that
may be presented via the user device 210. The user interface may be
presented on a screen 800 that may be the screen of the user device
210, as described herein with respect to FIG. 2. The screen 800 may
display a variety of graphical elements, including but not limited
to: a map control 810, an address search panel 820, a locator
palette 830, a navigation palette 840, a status bar 850, a menu bar
860, a service grid 870, a scale bar 880, and the input image of
the geographic area including the dig area. As discussed above, the
displayed input image may include one or more dig area indicators
or virtual white lines 890 to identify the dig area in the
displayed image.
[0145] Map control 810 generally may be the surface, or canvas,
where images--such as an exemplary image 802--are displayed. The
user may draw or input shapes "on top of" this surface using for
example, the input device 340 of FIG. 3 to identify underground
facility locate mark locations. FIG. 8 shows a stylus 804 as an
exemplary form of input device 340.
[0146] The address search panel 820 may be used to identify images
corresponding to a desired address. Panel 820 may, for example,
accept a partial or complete address and allow the user to search
for matches. If an excessive number of addresses match the search,
then the size of the result set may be constrained. Address search
results may be displayed which match the address search. The listed
matches may serve as a springboard for displaying the image desired
by the user. For example, when the user taps with a stylus 804 on
an address match, the user device 210 may load the image
corresponding to the selected address. As described above, this
image may be stored locally on user device 210 or retrieved from
central server 220.
[0147] Palettes may be generally defined as a toolbar or toolbars
containing soft buttons or other controls that are grouped in some
logical order. The buttons on a palette may duplicate the commands
available on the menu bar 860. The locator palette 830 may allow
the user to select the type of underground facility locate marks
(e.g., electric, gas, water, sewer, telecommunications, etc.) the
user will draw on the image 802. The locator palette 830 may also
include a choice of various shapes or shades, such as freestyle,
line, circle, rectangle, or other polygon that the user may select
to draw on the image 802. In one implementation, the locator
palette 830 may present a list of potential environmental landmark
identifiers. In this case, the user may select an environmental
landmark identifier from the list to overlay at the appropriate
place on the input image 802.
[0148] The locator palette 830 may also include an offset tool that
allows the user to mark the distance between, for example, an
environmental landmark identifier and a drawn underground facility
locate mark. Once the user has chosen the type of shape they wish
to draw (freestyle, line, polygon, shading etc.) the application
may track the user's movements to define the layout and location of
the shape. The shape may be completed when the user terminates the
drawing (for example, by lifting the stylus 804 or releasing the
mouse button). A text label or other indicator may be added to the
shape automatically based on the type of underground facility
locate mark or environmental landmark selected (e.g., "electric" or
"curb") or may be manually added.
[0149] The navigation palette 840 may allow the user to zoom or pan
the image 802. For example, the navigation palette 840 may include
selections to zoom in, zoom out, or zoom to a selected section of
the image. The navigation palette 840 may also include pan command
buttons to pan left, pan right, pan up or pan down. Other
selections that may be available on the navigation palette include
buttons to alter the transparency of either the image 802 or the
underground facility locate marks.
[0150] The status bar 850 may display information about the map
control, such as the coordinates of the subject area, the
coordinates of a cursor or stylus in relation to the image 802, and
the image scale. The menu bar 860 may include an operating system
element that allows a user to access commands, such as exiting the
application, selecting what palettes or panels to display, or
accessing online help.
[0151] The service grid 870 is shown as an exemplary "floating"
window to show how the user interface for the screen 800 may
operate in a typical operating system environment. The service grid
870 or any of the other graphical elements described in relation to
screen 800 may be in a fixed or floating orientation. As
underground facility locate marks are drawn on the map control 810,
they may appear in a list in the service grid 870. Thus, the user
may edit the properties of an underground facility shape using the
service grid 870, as well as by selecting the shape in the map
control 810. The service grid may include properties, such as the
type, length, circumference, and material of the marked underground
facility.
[0152] FIG. 9 shows an exemplary searchable electronic record or
electronic manifest 900 that may be generated according to methods
and apparatus described herein. The electronic manifest comprises
image data or information including a marked-up image 905. In the
example of FIG. 9, the marked-up image 905 includes digital
representations 910 (locate mark indicators) of physical locate
marks, offset indicia 915, and virtual white lines 920 (dig area
indicators). In addition, the electronic manifest 900 comprises
non-image information relating to the locate operation, derived
from one or more of the fields of the exemplary data set 700
illustrated in FIG. 7. In the example of FIG. 9, the displayed
elements of such a data set constituting non-image information
include (but are not limited to) a ticket number 925 for the locate
operation (from the ticket number field 790), an identifier 930 of
the locate technician (e.g., from the field 765 or another similar
field, which may indicate facility owner/operator, or locate
company/technician), a time and date stamp 935 indicating when the
electronic manifest was created (from the timestamp filed 710), a
location stamp 940 indicating where the electronic manifest was
created (from the location stamp field 715), a completed checklist
945 of markings used in the locate operation (from the marking
method field 770), and a locate technician signature 950 certifying
that the information of the electronic manifest is correct (from
the certification field 725). The marked-up image and additional
information relating to the locate operation may be stored as a
single file (e.g., a combined image or image and text file), in
associated files, or separately. It should be appreciated that the
electronic manifest 900 shown FIG. 9 is merely exemplary, and that
an electronic manifest as described herein may alternatively
include other combinations of the information described herein and
may be formatted in different manners.
[0153] An electronic manifest of underground facility locate marks
may serve several purposes. For example, the electronic manifest
may provide significant improvements in accuracy and save time for
the locate technician. Manual sketching is time consuming and
imprecise. For example, with manual sketching, the general
geographic features of the dig area location, i.e. roads,
sidewalks, landscaping, buildings, and other landmarks, must be
reproduced by the locate technician. Creation of an electronic
manifest that includes drafting on retrieved input images may
improve accuracy and eliminate drafting of these general geographic
features.
[0154] Additionally, or alternatively, an electronic manifest of
underground facility locate marks may provide a variety of data
formats from a single user event. For example, electronic drafting
creates data about the electronic manifest which can be reviewed
without viewing the image. The type of marked underground
facilities can be determined based upon the existence of different
colors, different line types (e.g., solid, dotted or dashed), or
other coding schema. Length of marks for each underground facility
can be approximated, and the existence and length of offsets
detected. If available, the location of the marks can be
cross-checked to the user's description or depiction of the area to
be marked or excavated.
[0155] Additionally, or alternatively, an electronic manifest of
underground facility locate marks may provide for easier
dissemination and record-keeping. Electronic manifests can be
associated with individual tickets and recalled electronically,
avoiding the uncertainties and errors associated with manual filing
systems. Furthermore, electronic manifests can be interrogated to
ensure that the information recorded on the electronic manifest
accurately comports with billing data or other information
regarding the locate operation(s) performed.
[0156] Additionally, or alternatively, information from the
electronic manifest regarding the distance between environmental
landmarks and located underground facility locate marks may be used
to verify subsequent locate operations or the accuracy of the
electronic manifest. For example, if the information identifies an
underground facility as running parallel to the curb at a distance
of three meters, that information may be used to assess the
accuracy or consistency of a subsequent locate operation at the
same dig area or, upon inspection, the accuracy of the electronic
manifest.
[0157] Additionally, or alternatively, information from the
electronic manifest regarding the number and types of underground
facilities may be used to estimate the scope of a subsequent locate
operation to be performed at a dig area. For example, a large
number of underground facilities may be indicative of an extensive
(i.e., time-consuming) locate operation.
[0158] Additionally, or alternatively, information from the
electronic manifest may be used by a quality control supervisor
and/or damage inspector to verify the accuracy of the underground
facility locate marks. For example, if the user who performed a
locate operation indicated that an underground facility runs
parallel to a driveway at a distance of two meters, then the
quality control supervisor or damage inspector may use this
information to verify whether the marks properly reflected the
actual location of the underground facilities present within the
dig area. Also information from the electronic manifest may be used
to train a user and/or to perform quality control relating to a
user's work. The electronic manifest can be modified, e.g., after
retrieval from the memory of a central server or the user device
itself, to include indication of that the manifest has been
reviewed and/or approved (e.g., by quality control supervisor).
Such an indication may comprise, for example, the signature of the
reviewer.
[0159] Since it is possible for a locate technician to create a
manifest without ever visiting the dig area, it may be desirable to
verify that a locate operation was actually performed in the dig
area, as discussed herein. According to one exemplary
implementation, this may be accomplished by verifying that location
information logged by a user device comports with a location where
the locate operation was to be performed (e.g., the dig area)
and/or that time information logged by a user device comports with
a time frame for performing the locate operation (e.g., within 48
hours of the ticket being issued). The time and/or location
information may be generated by the user device and automatically
logged to the electronic manifest. Alternatively, the time and/or
location information may be generated by the locate and/or marking
device, transmitted to the user device, and automatically logged to
the electronic manifest. The time information may comprise, for
example, a time stamp generated by a clock internal to the user
device or the locate and/or marking device. Such a time stamp may
comprise a date and/or time indicative of when the locate operation
was performed. The location information may comprise, for example,
GPS coordinates or GPS-derived data such as a city, state, county,
and/or address indicative of where the locate operation was
performed. The time and/or location information may be stored
and/or transmitted as part of the marked-up image or associated
data (e.g., data set 700).
[0160] Data or non-image information associated with performing the
locate operation and/or creating the electronic manifest, such as
time spent performing certain actions or actuations of an input or
marking device, can optionally be tracked and stored by the user
device. The data can be used, for example, to determine the cost of
a locate operation, verify the performance of a locate operation,
determine the location of physical locate marks, and/or train the
locate technician. Exemplary data that may be stored includes: a
start time and/or date of the locate operation; an end time and/or
date of the locate operation; a total time for marking each utility
(e.g., electric, gas, cable, phone, water, recreational water, and
sewer); an activity count (e.g., actuations of a marking device)
associated with marking each utility; a total time or activity
count for other actions (e.g., marking the property line, tie down,
sketching, drawing, selecting, dragging, resizing, or performing an
undo, clear or zoom); time and data associated with menu clicks,
line clicks, and point clicks; image request information and
information identifying the requested image; data associated with
drawing lines (e.g., utility type, begin location, end location,
width, and characteristic (e.g., dashed or solid)); data associated
with drawing points (e.g., utility type, location, width,
characteristic (e.g., symbol type)); data associated with text
boxes (e.g., location, characteristic (e.g., color), and text);
drawing data (e.g., start and end time, ticket number, user name
and/or identification, and IP address); and location data (e.g.,
image centroid, ticket location, start location, and end
location).
[0161] It should be appreciated that the user device described
herein is merely exemplary and that other implementations of user
device are possible. For example, the user device and/or certain
components thereof may be integrated within a locate and/or marking
device. In this case, the user device may share a display with that
of the locate and/or marking device and process and store data
within the locate and/or marking device.
CONCLUSION
[0162] Aspects of the invention as described herein enable
retrieving from a database the appropriate input image of a
specific geographic location, or dig area, where locate operations
are to be conducted for underground facilities. The user may draft,
on the retrieved image, a variety of features, including but not
limited to (1) the type of underground facilities marked using an
appropriate color or other coding schema, (2) the number of
underground facilities marked within the dig area, (3) the
approximate geographic location of each set of underground facility
locate marks, and (4) the appropriate environmental landmark
offsets for each set of underground facility locate marks. The
combination of the retrieved image and additional information
drafted by the user may be saved in a variety of formats as an
electronic manifest. Other information regarding the specific
geographic location of the locate marks and environmental landmarks
may be incorporated into the electronic manifest using direct input
from GPS-enabled positioning tools and the like.
[0163] The foregoing description is not intended to be exhaustive
or to limit the description to the precise form disclosed.
Modifications and variations are possible in light of the above
disclosure or may be acquired from practice of the invention.
[0164] For example, certain information was described as being
presented visually on a screen of user device 210. In other
implementations, this information may be audibly provided to the
user. Also, particular information was described as being input via
an input device 340, such as a screen of user device 210. In other
implementations, this information may be provided in other ways,
such as by receiving inputs via input keys and/or buttons, by
recognizing speech of the user, or by monitoring a condition of the
user. More particularly, the input device 340 may be capable of
capturing signals that reflect a user's intent. For example, the
input device 340 may include a microphone that can capture a user's
intent by capturing the user's audible commands. Alternatively, the
input device 340 may interact with a device that monitors a
condition of the user, such as eye movement, brain activity, or
heart rate.
[0165] As another example, certain components, such as user device
210 and central server 220 were described as using an image cache.
In other implementations, user device 210 and/or central server 220
may communicate with an image server (such as imager server 230) in
real-time, so that no image cache may be required. In still other
implementations, the user device 210 may, for example, communicate
in real time with the central server 220.
[0166] As another example, it should be noted that reference to a
GPS-enabled device is not limited to GPS systems only, and that any
global navigation satellite system or other system that provides
geo-spatial positioning may be used in implementations of the
invention.
[0167] Also, while a series of blocks has been described with
regard to FIG. 6, the order of the blocks may be modified in other
implementations. Further, non-dependent blocks may be performed in
parallel.
[0168] It will be apparent that aspects, as described above, may be
implemented in many different forms of software, firmware, and
hardware in the implementations illustrated in the figures. The
actual software code or specialized control hardware used to
implement these aspects is not limiting of the description provided
herein. Thus, the operation and behavior of the aspects were
described without reference to the specific software code--it being
understood that software and control hardware can be designed to
implement the aspects based on the description herein.
[0169] While various inventive embodiments have been described and
illustrated herein, those of ordinary skill in the art will readily
envision a variety of other means and/or structures for performing
the function and/or obtaining the results and/or one or more of the
advantages described herein, and each of such variations and/or
modifications is deemed to be within the scope of the inventive
embodiments described herein. More generally, those skilled in the
art will readily appreciate that all parameters, dimensions,
materials, and configurations described herein are meant to be
exemplary and that the actual parameters, dimensions, materials,
and/or configurations will depend upon the specific application or
applications for which the inventive teachings is/are used. Those
skilled in the art will recognize, or be able to ascertain using no
more than routine experimentation, many equivalents to the specific
inventive embodiments described herein. It is, therefore, to be
understood that the foregoing embodiments are presented by way of
example only and that, within the scope of the appended claims and
equivalents thereto, inventive embodiments may be practiced
otherwise than as specifically described and claimed. Inventive
embodiments of the present disclosure are directed to each
individual feature, system, article, material, kit, and/or method
described herein. In addition, any combination of two or more such
features, systems, articles, materials, kits, and/or methods, if
such features, systems, articles, materials, kits, and/or methods
are not mutually inconsistent, is included within the inventive
scope of the present disclosure.
[0170] All definitions, as defined and used herein, should be
understood to control over dictionary definitions, definitions in
documents incorporated by reference, and/or ordinary meanings of
the defined terms.
[0171] The indefinite articles "a" and "an," as used herein in the
specification and in the claims, unless clearly indicated to the
contrary, should be understood to mean "at least one."
[0172] The phrase "and/or," as used herein in the specification and
in the claims, should be understood to mean "either or both" of the
elements so conjoined, i.e., elements that are conjunctively
present in some cases and disjunctively present in other cases.
Multiple elements listed with "and/or" should be construed in the
same fashion, i.e., "one or more" of the elements so conjoined.
Other elements may optionally be present other than the elements
specifically identified by the "and/or" clause, whether related or
unrelated to those elements specifically identified. Thus, as a
non-limiting example, a reference to "A and/or B", when used in
conjunction with open-ended language such as "comprising" can
refer, in one embodiment, to A only (optionally including elements
other than B); in another embodiment, to B only (optionally
including elements other than A); in yet another embodiment, to
both A and B (optionally including other elements); etc.
[0173] As used herein in the specification and in the claims, "or"
should be understood to have the same meaning as "and/or" as
defined above. For example, when separating items in a list, "or"
or "and/or" shall be interpreted as being inclusive, i.e., the
inclusion of at least one, but also including more than one, of a
number or list of elements, and, optionally, additional unlisted
items. Only terms clearly indicated to the contrary, such as "only
one of" or "exactly one of," or, when used in the claims,
"consisting of," will refer to the inclusion of exactly one element
of a number or list of elements. In general, the term "or" as used
herein shall only be interpreted as indicating exclusive
alternatives (i.e. "one or the other but not both") when preceded
by terms of exclusivity, such as "either," "one of" "only one of"
or "exactly one of" "Consisting essentially of," when used in the
claims, shall have its ordinary meaning as used in the field of
patent law.
[0174] As used herein in the specification and in the claims, the
phrase "at least one," in reference to a list of one or more
elements, should be understood to mean at least one element
selected from any one or more of the elements in the list of
elements, but not necessarily including at least one of each and
every element specifically listed within the list of elements and
not excluding any combinations of elements in the list of elements.
This definition also allows that elements may optionally be present
other than the elements specifically identified within the list of
elements to which the phrase "at least one" refers, whether related
or unrelated to those elements specifically identified. Thus, as a
non-limiting example, "at least one of A and B" (or, equivalently,
"at least one of A or B," or, equivalently "at least one of A
and/or B") can refer, in one embodiment, to at least one,
optionally including more than one, A, with no B present (and
optionally including elements other than B); in another embodiment,
to at least one, optionally including more than one, B, with no A
present (and optionally including elements other than A); in yet
another embodiment, to at least one, optionally including more than
one, A, and at least one, optionally including more than one, B
(and optionally including other elements); etc.
[0175] It should also be understood that, unless clearly indicated
to the contrary, in any methods claimed herein that include more
than one step or act, the order of the steps or acts of the method
is not necessarily limited to the order in which the steps or acts
of the method are recited.
[0176] In the claims, as well as in the specification above, all
transitional phrases such as "comprising," "including," "carrying,"
"having," "containing," "involving," "holding," "composed of," and
the like are to be understood to be open-ended, i.e., to mean
including but not limited to. Only the transitional phrases
"consisting of" and "consisting essentially of" shall be closed or
semi-closed transitional phrases, respectively, as set forth in the
United States Patent Office Manual of Patent Examining Procedures,
Section 2111.03.
* * * * *