U.S. patent application number 15/880450 was filed with the patent office on 2019-07-25 for wireless gateway relay system and method.
The applicant listed for this patent is Geoforce, Inc.. Invention is credited to Troy Edwin Lanes, Gary Allen Naden.
Application Number | 20190230474 15/880450 |
Document ID | / |
Family ID | 67300341 |
Filed Date | 2019-07-25 |
United States Patent
Application |
20190230474 |
Kind Code |
A1 |
Lanes; Troy Edwin ; et
al. |
July 25, 2019 |
WIRELESS GATEWAY RELAY SYSTEM AND METHOD
Abstract
A gateway, a tracking device, a server, and a method for
tracking assets are provided. The method includes receiving a
message from a tracking device. The received message includes an
identification parameter associated with the tracking device and
indicates at least one of a null location or a location of the
tracking device. The method also includes determining whether the
received message indicates a valid location of the tracking device,
based on whether the location of the tracking device is within a
predetermined range of the electronic device. The method also
includes augmenting the received message with at least one of
location information of the electronic device, and identification
information of the electronic device when the received message
indicates the null location or the location of the tracking device
is not the valid location of the tracking device. The method
further includes transmitting the message to a server.
Inventors: |
Lanes; Troy Edwin; (Bozeman,
MT) ; Naden; Gary Allen; (Bozeman, MT) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Geoforce, Inc. |
Coppell |
TX |
US |
|
|
Family ID: |
67300341 |
Appl. No.: |
15/880450 |
Filed: |
January 25, 2018 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H04W 88/16 20130101;
H04W 4/029 20180201; G06Q 10/0833 20130101; H04B 17/318 20150115;
H04W 64/00 20130101 |
International
Class: |
H04W 4/029 20060101
H04W004/029 |
Claims
1. An electronic device comprising: a transceiver configured to:
receive a message from a tracking device, wherein the received
message includes an identification parameter associated with the
tracking device and the received message indicates at least one of
a null location or a location of the tracking device, and transmit
the message to a server; and a processor configured to: determine
whether the received message indicates a valid location of the
tracking device, based on whether the location of the tracking
device is within a predetermined range of the electronic device;
and augment the received message with at least one of location
information of the electronic device; and identification
information of the electronic device, when the received message
indicates the null location or the location of the tracking device
is not the valid location of the tracking device.
2. The electronic device of claim 1, further comprising a watch dog
timer.
3. The electronic device of claim 1, wherein the transceiver is
further configured to: derive a signal strength parameter
associated with the received message; and transmit the signal
strength parameter with the message.
4. The electronic device of claim 1, wherein the processor is
further configured to: in response to receiving the message,
determine whether the received message matches a previously
received message, wherein the received message and the previously
received message match when each message indicates a similar
location and each message includes the identification parameter
associated with the tracking device; when the received message does
not match a previously received message, transmit, via the
transceiver, the message.
5. The electronic device of claim 1, wherein the processor is
further configured to: when the received message matches a
previously received message, determine whether the received message
and the previously received message are received within a
predetermined period of time; and transmit, via the transceiver, a
single message, after a second predetermined period of time, in
response to determining that the received message and the
previously received message are received within the predetermined
period of time, wherein the single message is selected from the
received message and the previously received message.
6. The electronic device of claim 5, wherein the processor is
further configured select the single message that is transmitted
based on an age criteria of the received message.
7. The electronic device of claim 1, wherein the processor is
further configured to: in response to receiving the message,
determine whether the received message was previously received from
the tracking device within a threshold period, based on the
identification parameter; transmit, via the transceiver, a
decimation ratio associated with the tracking device.
8. The electronic device of claim 1, wherein: the processor is
further configured to generate a radio silence command; and the
transceiver is further configured to transmit the radio silence
command to the tracking device, wherein the radio silence command
instructs the tracking device to stop all communication for a
predetermined period of time.
9. The electronic device of claim 1, wherein the transceiver is
further configured to transmit a set of instructions to the
tracking device, wherein the set of instructions include at least
one of: a command to perform an operational configuration change, a
command to perform a maintenance tasks, a command to perform a
self-diagnostic test, a command to transmit a set of history of the
tracking device, and a set of new firmware.
10. The electronic device of claim 1, wherein the processor is
further configured to generate instructions to register an
unregistered tracking device; wherein the transceiver is further
configured to transmit a set of instructions to an unregistered
tracking device, and wherein the generated instructions to register
an unregistered tracking device performs at least one of: assign
the identification parameter to the tracking device; assign a
configuration to the tracking device, wherein the configuration
indicates communication preferences; bind the tracking device to an
asset; or override previous configurations.
11. The electronic device of claim 1, wherein the electronic device
is at least one of located at a stationary position or a mobile
position.
12. A tracking device comprising: a location receiver configured to
receive location information of the tracking device, and a
communication unit configured to transmit through a wide area
network and transmit through a local area network, and a processor
configured to: attempt to ascertain the location information of the
tracking device, and generate a first message that indicates a
location of the tracking device based on ascertaining the location
information, or a null location based on a failure to ascertain the
location information of the tracking device, and generate a second
message that indicates the location of the tracking device based on
ascertaining the location information, or the null location based
on the failure to ascertain the location information of the
tracking device, wherein the first message is transmitted through
the wide area network to a remote server when the wide area network
is available, and wherein the second message is transmitted through
the local area network to the remote server when the local area
network is available.
13. The tracking device of claim 12, wherein the processor is
further configured to include a previous location of the tracking
device in the second message when the location information is not
received.
14. The tracking device of claim 12, wherein the communication unit
is further configured to receive a silent command from an
electronic device; and wherein the processor is further configured
to instruct the communication unit to stop the attempt to ascertain
location information and stop transmitting through the
communication unit for a period of time, in response to the
received silent command.
15. The tracking device of claim 12, wherein the communication unit
is further configured to receive reconfiguration instructions from
a remote server through the local area network.
16. The tracking device of claim 12, wherein the communication unit
is further configured to receive registration information from a
remote server through the local area network, when the tracking
device is unregistered.
17. The tracking device of claim 12, wherein the wide area network
is at least one of a satellite communication system or a cellular
communication system, and wherein the local area network is a
bluetooth communication system.
18. A method comprising: receiving a message from a tracking
device, wherein the received message includes an identification
parameter associated with the tracking device and the received
message indicates at least one of a null location or a location of
the tracking device; determining whether the received message
indicates a valid location of the tracking device, based on whether
the location of the tracking device is within a predetermined range
of an electronic device; transmitting the message to a server; and
augmenting the received message with at least one of location
information of the electronic device, and identification
information of the electronic device, when the received message
indicates the null location or the location of the tracking device
is not the valid location of the tracking device.
19. The method of claim 18, further comprising: deriving a signal
strength parameter associated with the received message; and
transmitting the signal strength parameter with the message, when
the message is transmitted.
20. The method of claim 18, further comprising: in response to
receiving the message, determining whether the received message
matches a previously received message, wherein the received message
and the previously received message match when each message
indicates a similar location and each message includes the
identification parameter associated with the tracking device; when
the received message does not match a previously received message,
transmitting the message.
21. The method of claim 20, further comprising: when the received
message matches a previously received message, determining whether
the received message and the previously received message are
received within a predetermined period of time; and transmitting a
single message after a second predetermined period of time, in
response to determining that the received message and the
previously received message are received within the predetermined
period of time, wherein the single message is selected from the
received message and the previously received message.
22. The method of claim 18, further comprising: in response to
receiving the message, determining whether the received message was
previously received from the tracking device within a threshold
period, based on the identification parameter; and transmitting a
decimation ratio associated with the tracking device.
23. A server comprising: a memory configured to maintain a
plurality of identification parameters, wherein each identification
parameter is associated with a tracking device and a gateway; a
transceiver configured to receive a message from a gateway, wherein
the message includes a first identification parameter of the
gateway and a second identification parameter of the tracking
device; and a processor configured to assign a location of the
tracking device based on the received message.
24. The server of claim 23, wherein the processor is configured to
assign the location of the tracking device based on a predefined
gateway location associated with the first identification
parameter.
25. The server of claim 23, wherein the received message further
includes at least one of: a geographic location of the gateway; and
a signal strength parameter associated with the tracking device and
the gateway.
26. The server of claim 25, wherein the processor is configured to
assign a location of the tracking device based on the geographic
location of the gateway.
27. The server of claim 25, wherein the transceiver is further
configured to receive a second message from a second gateway,
wherein the second message includes a third identification
parameter associated with the second gateway, the second
identification parameter of the tracking device and a second signal
strength parameter associated with the tracking device and the
second gateway; and wherein the processor is further configured to:
compare the signal strength parameter and the second signal
strength parameter to identify a stronger signal, assign the
location of the tracking device as the location associated with the
gateway when the signal strength parameter is identified as the
stronger signal, and assign the location of the tracking device as
the location associated with the second gateway when the second
signal strength parameter is identified as the stronger signal.
28. The server of claim 23, wherein the transceiver is further
configured to receive a second message from the tracking device,
wherein the second message includes the second identification
parameter of the tracking device and a geographic location of the
tracking device; and wherein the processor is further configured
to: determine whether the geographic location of the tracking
device and a gateway location are within a predetermined range,
assign the location of the tracking device as the geographic
location of the tracking device, when the geographic location of
the tracking device and the gateway location are within the
predetermined range, and assign the location of the tracking device
as the gateway location, when the geographic location of the
tracking device and the gateway location are not within the
predetermined range, wherein the gateway location is based on at
least one of a predefined location associated with the first
identification parameter or a received geographic location of the
gateway.
Description
TECHNICAL FIELD
[0001] This disclosure relates generally to asset tracking systems.
More specifically, this disclosure relates tracking remote objects
using a tracking device and a gateway when the tracking device is
unable to receive location information or access a network for data
delivery.
BACKGROUND
[0002] Many industries, such as the oil and gas industry, are
supplied with equipment that is overseen by an asset management
system. The equipment is often transported in various types of
containers. Containers can include boxes, crates, tanks, pallets,
and the like. Global Navigation Satellite System (GNSS) tracking
devices are increasingly used throughout the various supply chain
endeavors, to locate or remotely monitor field equipment. The
benefits of this technology include improved operational
efficiency, increased utilization, improved service quality, and
enhanced maintenance practices. GNSS tracking devices typically
utilize wireless backhaul data links for sending data to a remote
monitoring or control facility. The wireless links often include
communication links over cellular communication networks, satellite
communication networks, or local WiFi communication networks.
SUMMARY
[0003] This disclosure provides wireless gateway relay system and
method.
[0004] In a first embodiment, an electronic device is provided. The
electronic device includes a transceiver and a processor. The
transceiver is configured to receive a message from a tracking
device associated with an asset. The received message includes an
identification parameter associated with the tracking device. The
transceiver is also configured to transmit the message to a server.
The electronic device also includes a processor. The processor is
configured to determine whether the received message indicates a
location of the tracking device. When the location of the tracking
device is a null location, the processor is configured to augment
the received message with at least one of location information of
the electronic device and identification information of the
electronic device
[0005] In a second embodiment, an electronic device is provided.
The electronic device includes a location receiver, a communication
unit and a processor. The location receiver is configured to
receive location information of the tracking device. The
communication unit is configured to transmit through a wide area
network and transmit through a local area network. The processor is
configured to attempt to ascertain the location information of the
tracking device. The processor is also configured to generate a
first message that indicates the location of the tracking device or
a null location based on a failure to ascertain the location
information of the tracking device. The processor is also
configured to generate a second message that indicates the location
of the tracking device or a null location based on a failure to
ascertain the location information of the tracking device. The
first message is transmitted through the wide area network to a
remote server when the wide area network is available. The second
message is transmitted through the local area network to the remote
server when the local area network is available.
[0006] In a third embodiment, a method is provided. The method
includes receiving a message from a tracking device associated with
an asset. The received message includes an identification parameter
associated with the tracking device. The method also includes
determining whether the received message indicates a location of
the tracking device. In response to determining the location of the
tracking device is a null location, augmenting the received message
with at least one of location information of an electronic device,
and identification information of the electronic device. The method
further includes transmitting the message to a server.
[0007] Other technical features may be readily apparent to one
skilled in the art from the following figures, descriptions, and
claims.
[0008] Before undertaking the DETAILED DESCRIPTION below, it may be
advantageous to set forth definitions of certain words and phrases
used throughout this patent document. The term "couple" and its
derivatives refer to any direct or indirect communication between
two or more elements, whether or not those elements are in physical
contact with one another. The terms "transmit," "receive," and
"communicate," as well as derivatives thereof, encompass both
direct and indirect communication. The terms "include" and
"comprise," as well as derivatives thereof, mean inclusion without
limitation. The term "or" is inclusive, meaning and/or. The phrase
"associated with," as well as derivatives thereof, means to
include, be included within, interconnect with, contain, be
contained within, connect to or with, couple to or with, be
communicable with, cooperate with, interleave, juxtapose, be
proximate to, be bound to or with, have, have a property of, have a
relationship to or with, or the like. The term "controller" means
any device, system or part thereof that controls at least one
operation. Such a controller may be implemented in hardware or a
combination of hardware and software and/or firmware. The
functionality associated with any particular controller may be
centralized or distributed, whether locally or remotely. The phrase
"at least one of," when used with a list of items, means that
different combinations of one or more of the listed items may be
used, and only one item in the list may be needed. For example, "at
least one of: A, B, and C" includes any of the following
combinations: A, B, C, A and B, A and C, B and C, and A and B and
C.
[0009] Moreover, various functions described below can be
implemented or supported by one or more computer programs, each of
which is formed from computer readable program code and embodied in
a computer readable medium. The terms "application" and "program"
refer to one or more computer programs, software components, sets
of instructions, procedures, functions, objects, classes,
instances, related data, or a portion thereof adapted for
implementation in a suitable computer readable program code. The
phrase "computer readable program code" includes any type of
computer code, including source code, object code, and executable
code. The phrase "computer readable medium" includes any type of
medium capable of being accessed by a computer, such as read only
memory (ROM), random access memory (RAM), a hard disk drive, a
compact disc (CD), a digital video disc (DVD), or any other type of
memory. A "non-transitory" computer readable medium excludes wired,
wireless, optical, or other communication links that transport
transitory electrical or other signals. A non-transitory computer
readable medium includes media where data can be permanently stored
and media where data can be stored and later overwritten, such as a
rewritable optical disc or an erasable memory device.
[0010] Definitions for other certain words and phrases are provided
throughout this patent document. Those of ordinary skill in the art
should understand that in many if not most instances, such
definitions apply to prior as well as future uses of such defined
words and phrases.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] For a more complete understanding of the present disclosure
and its advantages, reference is now made to the following
description taken in conjunction with the accompanying drawings, in
which like reference numerals represent like parts:
[0012] FIG. 1 illustrates an example communication system in
accordance with embodiments of the present disclosure;
[0013] FIG. 2 illustrates example electronic devices in a computing
system in accordance with an embodiment of the present
disclosure;
[0014] FIG. 3 illustrates an example block diagram in accordance
with an embodiment of the present disclosure;
[0015] FIG. 4 illustrates an example tracking device in accordance
with an embodiment of the present disclosure;
[0016] FIG. 5 illustrates an example global tracking and reporting
system in accordance with an embodiment of the present
disclosure;
[0017] FIG. 6 illustrates an example global tracking system with
two gateways in accordance with an embodiment of the present
disclosure;
[0018] FIG. 7 illustrates a method for receiving a message from a
tracking device by a gateway in accordance with an embodiment of
the present disclosure; and
[0019] FIG. 8 illustrates a method for a transmitting location
information by a tracking device in accordance with an embodiment
of the present disclosure.
DETAILED DESCRIPTION
[0020] FIGS. 1 through 9, discussed below, and the various
embodiments used to describe the principles of the present
disclosure in this patent document are by way of illustration only
and should not be construed in any way to limit the scope of the
disclosure. Those skilled in the art will understand that the
principles of the present disclosure may be implemented in any
suitably-arranged wireless communication system or device.
[0021] FIG. 1 illustrates an example computing system 100 according
to this disclosure. The embodiment of the system 100 shown in FIG.
1 is for illustration only. Other embodiments of the system 100 can
be used without departing from the scope of this disclosure.
[0022] The system 100 includes network 102 that facilitates
communication between various components in the system 100. For
example, network 102 can communicate Internet Protocol (IP)
packets, frame relay frames, Asynchronous Transfer Mode (ATM)
cells, or other information between network addresses. The network
102 includes one or more local area networks (LANs), metropolitan
area networks (MANs), wide area networks (WANs), all or a portion
of a global network such as the Internet, or any other
communication system or systems at one or more locations.
[0023] The network 102 facilitates communications between a server
104 and various electronic devices 106-112. The client devices
106-112 may be, for example, a smartphone, a tablet computer, a
laptop, a personal computer, a wearable device; a tracking device,
or a gateway or a combination thereof. The server 104 can represent
one or more servers. Each server 104 includes any suitable
computing or processing device that can provide computing services
for one or more client devices. Each server 104 could, for example,
include one or more processing devices, one or more memories
storing instructions and data, and one or more network interfaces
facilitating communication over the network 102. As described in
more detail below, the server 104 manages assets by receiving
locations of tracking devices associated with each asset.
[0024] Each electronic device 106-112 represents any suitable
computing or processing device that interacts with at least one
server or other computing device(s) over the network 102. In this
example, the client devices 106-112 include a mobile telephone or
mobile device 106 (such as a smartphone), a laptop computer 108, a
tracking device 110, and a gateway 112. However, any other or
additional electronic devices could be used in the system 100.
[0025] In this example, some electronic devices 106-112 communicate
indirectly with the network 102. For example, the mobile device 106
communicates via one or more base stations 116, such as cellular
base stations or eNodeBs (eNBs). Also, laptop computer 108 can
communicate via one or more wireless access points 114, such as
IEEE 802.11 wireless access points. As described in more detail
below, the tracking device 110 can communicate directly with
network 102, and the gateway 112. Similarly, the gateway 112 can
communicate directly with network 102 and the tracking device 110.
In certain embodiments, the tracking device 110 communicates with
network 102 and the gateway 112 through one or more base stations
116, or one or more wireless access points 114, or a combination
thereof. In certain embodiments, the tracking device 110
communicates with the gateway 112 through a short range frequency
communication channel such as BLUETOOTH, or WI-FI. Note that these
are for illustration only and that each electronic device 106-112
could communicate directly with the network 102 or indirectly with
the network 102 via any suitable intermediate device(s) or
network(s).
[0026] In certain embodiments, the mobile device 106, the laptop
computer 108, the tracking device 110, and the gateway 112 can
transmit information securely and efficiently to another device,
such as, for example, the server 104. The gateway 112 (or any other
client device 106-112) can trigger the information transmission
between itself and server 104. In certain embodiments, mobile
device 106 and laptop computer 108 can function as a tracking
device or a gateway.
[0027] Although FIG. 1 illustrates one example of a system 100,
various changes can be made to FIG. 1. For example, the system 100
could include any number of each component in any suitable
arrangement. In general, computing and communication systems come
in a wide variety of configurations, and FIG. 1 does not limit the
scope of this disclosure to any particular configuration. While
FIG. 1 illustrates one operational environment in which various
features disclosed in this patent document can be used, these
features could be used in any other suitable system.
[0028] The processes and systems provided in this disclosure allow
for the tracking device 110, or the gateway 112, to provide
location information of an asset. In certain embodiments, the
tracking device 110 is affixed to an asset. The tracking device 110
ascertains location information and transmits a message to a server
that indicates the location of the asset.
[0029] The tracking device 110 may be unable to ascertain location
information, such as when the tracking device 110 is within a
building or inside a cargo vehicle. In certain embodiments, the
tracking device 110 transmits a message with a location to a
gateway, similar to the gateway 112. The message transmitted by the
tracking device 110 can include a null location, when then tracking
device is unable to ascertain a location. In certain embodiments
when the tracking device 110 transmits a null location message, the
gateway 112 augments the message with the location of the gateway
112 and transmits the message to indicate an approximate location
of the asset.
[0030] FIG. 2 illustrates example devices in a computing system in
accordance with an embodiment of this disclosure. In particular,
FIG. 2 illustrates environment 200 including an example tracking
device 201, a gateway device 230, and a server 275. The tracking
device 201, the gateway device 230 and the server 275 could each
represent one or more of the electronic devices 104-112 of FIG. 1.
In certain embodiments, the tracking device 201, represents the
tracking device 110 of FIG. 1. In certain embodiments, the gateway
device 230 represents the gateway 112 of FIG. 1. In certain
embodiments the server 275 represents the server 104 of FIG. 1.
[0031] FIG. 2 illustrates an example expanded device level diagram
of a computing system in accordance with an embodiment of this
disclosure. In certain embodiments, FIG. 2 illustrates the system
of FIG. 1 with an expanded view of the example tracking device 110
(such as tracking device 201) and gateway 112 (such as gateway
device 230).
[0032] FIG. 2 illustrates implementation of a tracking device 201
and gateway device 230 in accordance with an embodiment of this
disclosure. The embodiment of the tracking device 201 and the
gateway device 230 shown in FIG. 2 are for illustration only and
other embodiments could be used without departing from the scope of
this disclosure. The electronic devices used in the present
invention can come in a wide variety of configurations, and FIG. 2
does not limit the scope of this disclosure to any particular
implementation of an electronic device.
[0033] Tracking device 201 is a location acquisition, and tracking
device used in asset management and supply chain systems. The
tracking device 201 can be any device including a location means
205, central processing unit (CPU) 202, WAN interface 222 and local
area network interface 207. In certain embodiments, tracking device
201 includes sensors 203 or interfaces to sensors 203. These
functions may be embedded in many electronic devices that could
serve the purpose described herein, such as, for example, a
wireless terminal, a desktop, a mobile device (similar to mobile
device 106 of FIG. 1), a laptop (similar to laptop computer 108 of
FIG. 1), a tablet computer, a tracking device (similar to tracking
device 110 of FIG. 1, and the like.
[0034] Gateway device 230 is an electronic device that provides
communication interfaces that interface with any number of tracking
devices 201 and any number of WAN interface 245 to connect to WAN
270 via communication 265. In certain embodiments, gateway device
230 is a stationary device. In certain embodiments, gateway device
230 is a mobile device. As depicted in FIG. 2, a gateway device 230
includes a LAN interface 240, WAN interface 245, CPU 235 with data
storage 255. In certain embodiments, the gateway device 230
includes a location means 260 or a watch dog timer (WDT) 250, or
both.
[0035] Environment 200 depicts the general operation of a single
tracking device 201 and a single gateway device 230 in an
operational model of the present invention. Multiple tracking
devices and multiple gateway devices are also an implementation of
the present disclosure. Tracking device 201 contains location means
205 for ascertaining device location, via GNSS, inertial
navigation, proximity detection or any other method for
ascertaining location. In certain embodiments, the tracking device
201 includes a GNSS receiver that collects communication 215 from a
multiplicity of GNSS satellites 220 for ascertaining location. A
GNSS receiver can receive geolocation information from global
navigation satellites, provided the GNSS receiver has an
unobstructed view to multiple satellites. A GNSS receiver is able
to calculate the location of the tracking device 201. The tracking
device 201 can transmit the location information through WAN 222 or
LAN 207 or both. For example, tracking device 201 can transmit the
location information through the WAN interface 222 to a satellite
225 using communication 223. The satellite 225 as depicted
represents the WAN for global communication of the tracking device
201. WAN interface 222 is not limited to communicating with
satellite 225 as other WANs such as cellular, internet or public,
or proprietary long-range radio systems are equally suitable. The
tracking device 201 also includes a LAN interface 207 that provides
via communication 210 to the nearby gateway device 230 that
contains compatible local area network interface 240. Communication
210 is a short range communication, that has a limited distance. In
certain embodiments, communication 210 is limited to 1,000 meters.
Communication 210 between LAN interface 207 and LAN interface 240
can include any short-range radio signals such as BLUETOOTH,
BLUETOOTH LOW-ENERGY (BLE), WiFi, ZIGBEE, Radio Frequency
identification (RFID), or other proprietary short range signals. In
certain embodiments, tracking device 201 receives location
information and transmits a message via WAN interface 222 or LAN
interface 207 or both. In certain embodiments, tracking device 201
receives location information as well as is capable of transmitting
and receiving messages, similar to a transceiver, via WAN interface
222 or LAN interface 207 or both. In certain embodiments, tracking
device 201 transmits the same location message through the
interfaces of both WAN 222 and LAN 207 in order the message to
reach the server 275. The tracking device 201 utilizes a CPU 202
that controls and manages all the operations, computations, data
manipulation and storage as well as operational and communication
means of the device.
[0036] In certain embodiments, the tracking device 201 includes one
or more sensors 203 that meter a physical quantity or detect an
activation state of the tracking device 201 and convert metered or
detected information into an electrical signal. For example, sensor
203 can include one or more buttons for touch input (located on the
tracking device 201), one or more cameras, a gyroscope or gyro
sensor, an air pressure sensor, a magnetic sensor or magnetometer,
an acceleration sensor or accelerometer, a proximity sensor, a
color sensor (such as a Red Green Blue (RGB) sensor), a
temperature/humidity sensor, an illumination sensor, an Ultraviolet
(UV) sensor, an iris sensor, a fingerprint sensor, a radiation
sensor (such as a Geiger Counter), and the like. The sensor 203 may
also be a communication interface to a nearby sensor being
monitored by tracking device 201. The sensor 203 can further
include a control circuit for controlling at least one of the
sensors included therein. One or more of these sensors 203 can be
used to detect ambient atmospheric conditions at or around the
tracking device 201, proximity to another electronic device,
physical impacts that can damage the asset associated with the
tracking device 201, and the like. Any of these sensor(s) 203 may
be located within the tracking device 201, or in communication with
the tracking device 201.
[0037] The gateway device 230 of FIG. 2 operates as an alternate
communication means for a tracking device 201 to connect with a
wide area network. In the event that the tracking device 201 fails
to connect to the primary WAN through satellite 225, (through WAN
interface 222 and communication 223), the tracking device 201, can
connect to the alternate WAN 270 through communication 210 with the
gateway device 230, via LAN interface 207 of the tracking device
201 to the LAN interface 240 of the gateway device 230.
[0038] The gateway device contains a CPU 235 that manages all the
operations, computations, data manipulation and storage as well as
communication means of the device. The gateway device 230 bridges
the communication between the tracking device 201 and a WAN 270
using communication 210 and 265. The gateway device 230 may also
use data storage 255 to provide data processing and intelligent
processing of tracking device 201 messaging. The data storage 255
could include a random access memory (RAM), a Flash memory or other
read-only memory (ROM). In certain embodiments, the gateway device
230 includes a location means similar to location means 205 of
tracking device 201 to augment a null location received from the
tracking devices 201. In certain embodiments, a null location is
received from the tracking devices 201 when the tracking devices
201 cannot ascertain its location via location means 205. In
certain embodiments, the gateway device 230 includes location
information stored in data storage 255, inferred by the server 275,
or a location ascertained via location means 260 to augment a null
location received from tracking devices 201. In certain
embodiments, the gateway device 230 includes location information
that is stored in data storage 255, inferred by the server 275, or
a location ascertained via location means 260, or a combination
thereof, to augment a valid location received from tracking devices
201 in order to favor and place the tracking device 201 at the
gateway location reported. Location augmentation is an effective
method for proximity locating tracking device 201 due to the
limited range of the local area network. Location 260 is similar to
location 205 of the tracking device 201. In certain embodiments,
the gateway device 230 includes a WDT 250 to reset the gateway
device 230 upon detection of anomalous operation. The WDT 250 is an
electronic timer that is utilized to detect and recover from a
malfunction of the gateway device 230. In certain embodiments, the
CPU 235 issues a ping to the WDT 250 at a predetermined period. If
the WDT 250 does not receive the ping, then the WDT 250 resets to
the gateway device 230. In certain embodiments the WDT 250 is
external to the gateway device.
[0039] The server 275 represents the system information repository
that collects data from any number of tracking devices 201 and
gateway devices 230 or any number of WANS such as satellite 225,
and WAN 270. While FIG. 2 depicts wide area networks as satellite
or cellular, any effective method for collecting information into
server 275 is applicable in the present invention
[0040] Although FIG. 2 illustrates example electronic devices such
as tracking device 201, gateway device 230 and server 275, various
changes can be made to FIG. 2. For example, various components in
FIG. 2 could be combined, further subdivided, or omitted, and
additional components could be added according to particular needs.
As a particular example, the CPU 235 could be divided into multiple
processors, such as one or more central processing units (CPUs) and
one or more graphics processing units (GPUs). In addition, as with
computing and communication networks, electronic devices (such as,
tracking device 201, and gateway device 230) and servers (such as,
server 275) can come in a wide variety of configurations, and FIG.
2 does not limit this disclosure to any particular electronic
device or server.
[0041] FIG. 3 illustrates an example block diagram of a
communication system in accordance with an embodiment of this
disclosure. The system architecture 300 includes a server 310, a
tracking device 320, and a gateway 330 in communication over
network 305. The embodiment of the system architecture 300 shown in
FIG. 3 is for illustration only. Other embodiments could be used
without departing from the scope of the present disclosure.
[0042] System architecture 300 illustrates a high-level overview of
an embodiment of the present disclosure to track assets over
network 305. Network 305 can be configured similar to network 102
of FIG. 1. Server 310 can be configured similar to server 104 of
FIG. 1, and server 275 of FIG. 2. Tracking device 320 can be
configured similar to any of the one or more client devices 106-112
of FIG. 1 (such as tracking device 110), and can include internal
components similar to that of tracking device 201 of FIG. 2.
Gateway 330 can be configured similar to any of the one or more
client devices 106-112 of FIG. 1 (such as gateway 112) and can
include internal components similar to that of gateway device 230
of FIG. 2.
[0043] Network 305 is used to provide communication between the
server 310 the tracking device 320 and the gateway 330. Network 305
can be a short range communication network, personal area network
(PAN), Local Area Networks (LANs), Wireless Local Area Networks
(WLANs), the Internet, the Public Switched Telephone Network
(PSTN), WAN such as public cellular service as well as other
wireless networks. Network 305 may also be the Internet,
representing a worldwide collection of networks and gateways that
use Transmission Control Protocol/Internet Protocol (TCP/IP)
protocols to communicate with one another. Network 305 can include
a variety of connections, such as, wired, wireless or fiber optic
connections. Network 305 provides communication similar to the
communication 223 and 265 of FIG. 2
[0044] Server 310 can represent one or more local servers, one or
more tracking device servers, or one or more asset management
servers. Server 310 can be a web server, a server computer such as
a management server, or any other electronic computing system
capable of sending and receiving data. In certain embodiments,
server 310 is a "cloud" of computers interconnected by one or more
networks, where server 310 is a computing system utilizing
clustered computers and components to act as a single pool of
seamless resources when accessed through network 305. Server 310
can include an information repository 312. In certain embodiments,
the server 310 includes a communications interface, and at least
one input/output (I/O) unit.
[0045] Server 310 can include a communications interface that
supports communications with other systems or devices. For example,
the communications interface could include a network interface card
or a wireless transceiver facilitating communications over the
network 305. The communications interface can support
communications through any suitable physical or wireless
communication link(s), such as to end users accessing server 310
data over the network 305 using a personal laptop 350. Personal
laptop 350 is similar to laptop computer 108 of FIG. 1. In certain
embodiments, personal laptop 350 is a desktop computer, a mobile
device (similar to mobile device 106 of FIG. 1) a tablet or any
other computing device. The communication interface can allow the
server 310 to receive the location information from the tracking
device 320. In another example, the communication interface can
allow the server 310 to receive the location information from the
tracking device 320 through the gateway 330 via a short-range
communication 340. In certain embodiments the short-range
communication 340, is a communication between tracking device 320
and the gateway 330 similar to communication 210 of FIG. 2. In
certain embodiments, the server 310 transmits reconfiguration data
to the gateway 330. The reconfiguration data allows the gateway to
reconfigure the tracking device 320 using a local, short-range
communication 340. The reconfiguration can include how often the
tracking device 320 determines its location and transmits the
information to the server 310. The reconfiguration can include
processes the tracking device 320 is to follow when the tracking
device 320 is unable to determine its location or communicate with
the server, or both. The reconfiguration can include changes to
operating modes, or even software or firmware uploads to be used by
the tracking device 320. In certain embodiments, the server 310 can
receive from the gateway 330, identifying information of the
tracking device 320, when the gateway 330 registers or first
observes a tracking device. In certain embodiments, the server 310
is capable of sending specific instructions to gateway 330. The
instructions can be for any tracking device 320 within proximity to
the gateway 330, for a specific set of tracking devices 320 within
proximity to the gateway 330, or a single tracking device 320
within proximity to the gateway 330. The instructions can also be
for any tracking device currently within proximity of the gateway
330, or an ongoing command for future tracking devices that are
detected by the gateway when a new tracking device 320 enters the
proximity of the gateway 330. For example, when the system
architecture includes multiple tracking devices 320, the gateway
330 is able to perform configuration changes to all tracking device
320 within proximity for short-range communication 340. For
instance, if the gateway 330 detects five tracking devices 320
(similar to tracking device 320), the gateway 330 can communicate
with all the tracking devices by transmitting a universal command
or instructions. When the gateway 330 detects a new tracking device
320, the gateway can transmit the instructions that were previously
transmitted to the five tracking devices, to the new tracking
device. The command can include an update of the firmware.
Similarly, the command can include instructions for reconfiguring
when all the tracking devices transmit their locations. In another
example, when the system architecture includes multiple tracking
devices 320, gateway 330 is able to perform configuration changes
to specific tracking device 320 within proximity for short-range
communication 340. For instance, if the gateway 330 detects five
tracking devices (similar to tracking device 320), the gateway 330
can communicate with three of the five tracking device, and
transmit a universal command or instructions to the three selected
tracking devices. The command can include instructions to update
firmware for specific tracking devices. Selecting the subset of the
tracking devices can be preselected by the server 310, or a general
command such as upon detecting a specific tracking device(s)
perform a specific function, such as deactivating the tracking
device, or reconfiguring when the tracking device transmits its
location, or updating the firm ware of the specific tracking
devices, and the like.
[0046] In certain embodiments, server 310 can receive signal
strength parameter associated with location of a tracking device
320, when the location information is received from the gateway
330. For example, if a gateway 330 receives location information
from a tracking device 320, the gateway 330 forwards the received
information onto the server 310. When the gateway 330 forwards the
received information onto the server 310, the gateway 330 can
include a signal strength parameter that indicates the strength of
the received signal from the tracking device 320. The signal
strength parameter can beneficial to the server 310, when multiple
gateways 330 receive the location information from a tracking
device 320. For example, if the tracking device transmits a null
location message and two gateways 330 receive the message, each
gateway 330 can send the message to the server 310 with augmented
location of the associated gateway 330. When each gateway transmits
the augmented location information of a single tracking device 320,
the asset appears to the server 310 to be moving back and forth in
a storage facility. Therefore, if the two gateways 330 transmit a
signal strength parameter associated with the tracking device 320,
the server can determine which received message is stronger. Once
the server determines which received signal message is stronger,
the server 310 can disregard the weaker message; and ascertain the
asset is located closer to one gateway 330 in preference to second
gateway and use the augmented location that is closest to the
tracking device 320. This example is discussed further with
reference to FIG. 6, below.
[0047] The information repository 312 represents any structure(s)
capable of storing and facilitating retrieval of information (such
as data, program code, or other suitable information on a temporary
or permanent basis). The information repository 312 can include a
memory and a persistent storage. Memory can be RAM or any other
suitable volatile or non-volatile storage device(s), while
persistent storage can contain one or more components or devices
supporting longer-term storage of data, such as a ROM, hard drive,
Flash memory, or optical disc. Information repository 312 stores
location information of each tracking device 320 and may store an
asset identifier or group of asset identifiers with which each
tracking device 320 is associated.
[0048] Tracking device 320 represents one or more tracking devices
used to remotely track assets. The tracking device 320 is discussed
in greater detail below with reference to FIG. 4. The tracking
device 320 is configured to be affixed to an asset for tracking and
monitoring the location of the asset. For example, if the asset is
delayed in transit from location A to location B, an operator
monitoring the location of the tracking device 320 can identify the
delay, and take corrective action. In another example the tracking
device 320 allows an operator to find the asset associated with the
tracking device 320 when the asset is located in a shipping yard,
storage facility storage yard, in transit, or the like. The
tracking device 320 can include a power source such as a battery.
The tracking device 320 can also include a location module 322, a
communication unit 324, an information repository 326, and a
tracking agent 328.
[0049] In certain embodiments, the tracking device 320 has two
states: a dormant state and an active state. In the dormant state,
the tracking device 320 is powered down to reserve power. In the
active state, the tracking device 320 requests location information
via location module 322, derives the location of the tracking
device 320, and transmits the location information via the
communication unit 324. In certain embodiments, the location
information is transmitted via a message.
[0050] The location module 322 derives location information of the
tracking device 320 based on received geographical location
information. In certain embodiments, location module 322 is a GNSS
receiver, capable of communicating with multiple GPS satellites in
order to determine the geographic location of the tracking device
320. In certain embodiments, the location module 322 can determine
a location based on triangulating known radio signals such as WiFi,
cellular, BLUETOOTH or other radio proximity methods. In certain
embodiments, the location module 322 can determine a location based
on detecting movement via one or more sensors.
[0051] Communication unit 324 provides communication between the
tracking device 320 with the server 310 or the gateway 330 or both.
In certain embodiments, the communication unit 324 is configured
for one way communication. For example, the tracking device 320 can
receive location information via the location module 322 and
transmit the information via the communication unit 324, but may be
unable to receive instructions from a third device, such as the
server 310 or the gateway 330. If the communication unit 324 is
configured for one way communication, then tracking device 320 is
unable to ascertain whether the location message was received.
Therefore, the communication unit 324 can transmit the message both
the server via network 305 as well as to a gateway via short-range
communication 340. By transmitting the message over two mediums
provides an improved chance that the server 310 will receive the
location message of the tracking device 320. In certain
embodiments, the tracking device 320 is configured for two way
communication. For example, the tracking device 320 can receive
location information via the location module 322, and transmit the
information as well as receive instructions from a third device,
such as the server 310 or the gateway 330, via the communication
unit 324. The instructions can change parameters and configurations
of the electronic device. For example, instructions can include one
or more: (i) post configuration changes; (ii) maintenance tasks;
(iii) instructions to perform a self-diagnostic test and transmit
the results; (iv) retrieve historical operational data of the
tracking device for a specific date range or the life of the
tracking device 320; (v) re-flash the tracking device with a set of
new firmware, such that the tracking device 320 is
firmware-over-the-air capable, and the like. In certain
embodiments, even when the communication unit 324 is configured for
two way communication, two messages are transmitted via network 305
as well as short-range communication 340.
[0052] In certain embodiments, the communication unit 324 is
configured to transmit data to a server 310 via a satellite
communication. When the communication unit 324 communicates with
the server 310, the communication unit 324 can use various
communication frequencies intended for large distances. In certain
embodiments, the communication unit 324 is configured to transmit
data to a local gateway. The communication unit 324 can use various
communication frequencies intended for short distances. In certain
embodiments, the communication unit 324 is configured to transmit
data to a local gateway, when the tracking device 320 is unable to
communicate with the server 310 (such as through satellite
communication) via communication unit 324, or unable to communicate
with a location service, such as GNSS, via the location module 322.
In certain embodiments the communication unit 324 is configured to
transmit a location message to both a local gateway and to the
network 305 regardless if the tracking device 320 is able to
communicate with the server 310 (such as through satellite
communication), or able to ascertain a location via the location
module 322.
[0053] Information repository 326 is capable of saving location
information from the location module 322. The information
repository 326 represents any structure(s) capable of storing and
facilitating retrieval of information (such as data, program code,
or other suitable information on a temporary or permanent
basis).
[0054] Tracking agent 328 is capable of controlling the various
tracking capabilities of the tracking device 320. In certain
embodiments, the tracking agent 328 controls the active state and
the dormant state of the tracking device 320. For example, based on
a given time period, the tracking agent 328 can activate the
tracking device 320 from a dormant state and initiate the location
acquisition process via location module 322.
[0055] In certain embodiments, the tracking agent 328 is capable of
instructing the communication unit 324 to transmit the location
information message, to the server 310, via network 305, or to the
gateway 330, via a short range communication frequency. For
example, if the location module 322 is able to derive the location
of the tracking device, then the tracking agent 328 can instruct
the communication unit 324 to transmit the location information in
a message to the server 310. If the communication unit 324 is
unable to communicate with the server 310, the tracking agent 328
can instruct the communication unit 324 to transmit the location
information message to the gateway 330. If the location module 322
is unable to derive the location of the tracking device, the
tracking agent 328 can instruct the communication unit 324 to
transmit a blank location, such as a null location, in a message to
the gateway 330. In certain embodiments, the communication unit
324, when communicating with the gateway 330, can use a short range
frequencies, such as BLUETOOTH, BLE, ZIGBEE, RFID, message
protocols or advertising. The communication unit 324, when
communicating with the gateway 330, can use short-range
communication 340.
[0056] In certain embodiments, if the location module 322 is unable
to derive the location of the tracking device or the communication
unit 324 is unable to communicate with the server 310, the tracking
agent 328 can instruct the communication unit 324 to repeatedly
broadcast the location message using a short range frequency, such
as short-range communication 340. It is noted that if the
communication unit 324 is a one way communication, then the
communication unit 324 does not receive a notification that a
message was received. Therefore, in certain embodiments, the
communication unit 324 always repeatedly broadcasts the location
message using a short range communication method. The broadcast is
repeated in order for a gateway 330 to pick up the broadcast. For
example, if the tracking device 320 is moving, there is a
possibility that no gateway is nearby to receive the message;
therefore, by continually repeating the message, a gateway 330 will
eventually receive the message. In another example, the tracking
device 320 is stationary and the gateway 330 is mobile. For
instance, the tracking device is located such as in a shipping
yard, while a gateway 330 attached to a vehicle. When the vehicle
drives within the proximity of the tracking device 320, such as
within the range of the short-range communication 340, the gateway
330 is able to receive the broadcast from the tracking device 320.
In certain embodiments, if the location is unknown, the broadcast
can include the last known location as saved in the information
repository 326. In certain embodiments, when transmitting the
repeated broadcast, the tracking device 320 does not know when or
if the broadcast is received by a gateway 330. If the tracking
device 320 is capable of two-way communication and receives a
silent command via a gateway 330, the silent command can instruct
the tracking agent 328 to pause radio operations for a period of
time, thus preserving battery capacity of the tracking device 320.
Alternatively, if the tracking device 320 is capable of only
one-way communication, the tracking agent 328 can stop broadcasting
the message for a period of time and then issue a command to
continue broadcasting the message. The starting and stopping of the
broadcast can continue until the tracking device is able to
communicate with the server 310 or the gateway 330.
[0057] Gateway 330 represents one or more devices that can be used
to communicate with tracking device 320 and the server 310. In
certain embodiments, the gateway 330 serves as (i) a scanning
device, (ii) a connection method for the tracking device 320, (iii)
an alternate communication path for the tracking device 320, (iv)
bandwidth reduction instrument, (v) an apparatus to register an
unregistered tracking device 320, or (vi) a radio silent controller
for power savings in nearby tracking devices 320, or a combination
thereof. Gateway 330 can be stationary or mobile. For example,
gateway 330 is located at a stationary position such as when the
gateway 330 is affixed on or near a building. In another example,
gateway 330 mobile when it is affixed to a vehicle.
[0058] In certain embodiments, the gateway 330 is located within a
short range communication distance with one or more tracking
devices 320. In certain embodiments, the gateway 330 is mobile as
it is located on a moving vehicle that when the vehicle is moved
can be located within a short range communication distance with one
or more tracking devices 320. The gateway 330 is configured to be
located in a location that provides an unobstructed view (or
predominantly unobstructed view) to one or more communication
satellites, one or more location acquisition satellites. For
example, if the tracking device 320 is unable to communicate
directly with the server 310, via network 305, such as when the
tracking device is inside a building, obscured by other assets, or
in a covered cargo transportation vehicle, then the tracking device
320 can transmit the location message via a short range
communication to the gateway 330. The gateway 330 then forwards the
received message to the server 310, via network 305. In another
example, the gateway 330 is located outside of a transportation
vehicle while the tracking device 320 is located inside a covered
portion of the transportation vehicle. If the tracking device 320
is unable to transmit location information to server 310, due to an
inability to ascertain a location or an ability to communicate with
a network 305, the tracking device 320 can transmit the location
message to the gateway 330. The gateway 330 then forwards the
location message onto the server 310. In another example, the
gateway 330 is located on a vehicle, such as a forklift, that
drives through a storage yard. When the vehicle with the gateway
330 approaches tracking device 320, the tracking device 320 can
transmit the message to the gateway 330. For instance, the tracking
drive could continually broadcast the location message that is
received by the moving gateway. The gateway 330 includes a location
module 332, a communication unit 334, an information repository
336, and a tracking program 338.
[0059] The location module 332 of the gateway 330 is similar to the
location module 322 of the tracking device 320. For example, the
location module 332 is capable of deriving the location of the
gateway 330. In certain embodiments, gateway 330 does not include a
location module 332. For example, if the gateway is stationary,
such as affixed to a storage facility, the gateway can be preset
with a location. In another example, when the gateway is
stationary, when the gateway transmits the location message of the
tracking device 320, the gateway can include the identification
number of the gateway 330. The information repository 312 within
server 310 can include an estimated geographic location such as an
address or an area within a building where the gateway 330 is
located. Thereafter the server 310 can augment the null location of
the tracking device 320 with the approximate location of the
gateway 330.
[0060] The communication unit 334 of the gateway 330 is similar to
the communication unit 324 of the tracking device 320. For example,
the communication unit 334 provides communication between the
gateway 330, the server 310, and the tracking device 320. In
certain embodiments, the gateway 330 is configured for two-way
communication. For example, the gateway 330 can receive a location
message from the tracking device 320 and transmit the message to
the server 310. The gateway 330 is also capable of receiving
instructions from the server 310 and receiving location information
from one or more satellites. In certain embodiments, the gateway
330 can receive instructions from the server 310 and forward the
received instructions to the tracking device 320.
[0061] In certain embodiments, short-range communication 340,
between the tracking device 320 and the gateway 330, represents a
short range communication via communication unit 324 with
communication unit 334. Short-range communication 340 occurs when
the communication unit 324 is unable to communicate with network
305. For example, the tracking device 320 can be located in a
covered storage facility that prevents the communication unit 324
from communicating directly with network 305. Short-range
communication 340 can also occur when the gateway 330 receives
instructions or configuration changes from server 310. Short-range
communication 340 can also occur when the gateway 330 registers an
unregistered tracking device 320.
[0062] The information repository 336 of the gateway 330 is similar
to the information repository 326 of the tracking device 320. The
information repository 336 represents any structure(s) capable of
storing and facilitating retrieval of information (such as data,
program code, or other suitable information on a temporary or
permanent basis). The information repository 336 is capable of
saving location information. In certain embodiments, the
information repository 336 is capable of saving location
information associated with each tracking device 320 that gateway
330 communicates with.
[0063] The tracking program 338 of the gateway 330 is similar to
the tracking agent 328 of the tracking device 320. The tracking
program 338 is capable of controlling the various tracking
capabilities of the gateway 330. For example, if the gateway 330
receives a message from the tracking device 320 with a null
location, the gateway 330 can then augment the received message
with the location information of the gateway 330. The location
information of the gateway 330 is received from the location module
332 or the gateway 330 can be preprogrammed with a particular
location. In another example, the gateway 330 can augment the
received message with the identification number of the gateway. If
the gateway is stationary, such as affixed to a building, the
server 310 can augment location of the gateway based on matching
the identification number of the gateway 330 with a location as
maintained in the information repository 312. Additionally, the
gateway 330 can include the signal strength of the received message
with the location information message is transmitted to the server
310.
[0064] In certain embodiments, the gateway 330 is capable of
registering an unregistered tracking device. For example, the
gateway 330 can perform the registration of the tracking device 320
when tracking device 320 is unregistered or not assigned to an
asset, or both. The gateway 330 can allow a user to (i) select the
identification number of the tracking device, (ii) select a
particular configuration of the tracking device, (iii) bind the
tracking device 320 to an asset, (iv) override any default or
preconfigured settings, and the like.
[0065] In certain embodiments, the tracking program 338 is also
capable of deriving the signal strength of a received broadcast
from a tracking device 320. When the gateway 330 transmits a
location message from the tracking device, the transmitted location
message can include the signal strength.
[0066] In certain embodiments, the tracking program 338 is capable
of transmitting a silent command to a tracking device 320 that
continually repeats a broadcast. In certain embodiments, the
tracking device 320 repeats a broadcast if the tracking device is
unable to access the server 310 or derive a location via location
module 322. The silent command is limited in duration. Upon
receiving the silent command, the tracking device 320 engages a
low-power state and may cease network communication attempts for a
period of time. Therefore, if the tracking device 320 is moved and
can no longer communicate with the gateway 330, the silent command
will conclude after the period of time, thereby allowing the
tracking device 320 to resume functioning as configured. The silent
command provides power saving means for tracking devices that are
located in areas with limited or no network operation, thereby
extending the service life of the device.
[0067] In certain embodiments, the tracking program 338 is capable
of reducing the number of messages the gateway transmits. That is,
if the tracking device 320 repeats a broadcast, the tracking
program 338, can prevent the gateway for transmitting a message
each time the gateway receives the broadcast. For example, the
tracking program 338 can employ a straight decimation ratio, to
reduce the number of transmission by the gateway. A decimation
ratio reduces the communication forwarding rate of a received
signal. That is, the tracking program 338 approximates a sequence
that can be obtained by sampling the signal at a lower rate. In
another example, the tracking program 338 can employ an age
criteria, such as a time window, to reduce the number of
transmission by the gateway. A time window limits the number of
transmissions within a given period of time. For example, if the
gateway 330 receives X number broadcast messages from the same
tracking device within a specified period of time, the tracking
program 338 can transmit the first received message to the server
and retain the reminder of the messages until the period of time
expires. Thereafter the tracking program 338 transmits a single
broadcast.
[0068] FIG. 4 illustrates an example tracking device 400 in
accordance with an embodiment of this disclosure. As shown in FIG.
4, the tracking device 400 includes a control unit 405 and a
hardened case 410. The hardened case 410 is configured to protect
the control unit 405 during deployment in the field. The hardened
case 410 inhibits damage to the control unit 405, such as by
helping to prevent damage from compression, impact, and weather.
The hardened case 410 can be formed from any suitable material(s),
such as a zinc alloy, steel, stainless steel, plastic, fiberglass,
and the like. In certain embodiments, the material used to form the
hardened case 410 is anti-magnetic and/or non-sparking. In certain
embodiments, the hardened case 410 prevents water or other liquids
from contacting or entering into the control unit 405.
[0069] The tracking device 400 includes a window 415 configured to
allow transmission of wireless signals to and from the control unit
405. The wireless signals can include long-range RF signals, such
as cellular wireless signals or satellite communication signals.
The wireless signals can also be short-range radio frequency such
as BLUETOOTH, BLUETOOTH LOW ENERGY (BLE), WiFi, ZIGBEE, Radio
Frequency identification (RFID), or other signals. In certain
embodiments, the window 415 is dimensioned to focus wireless
signals towards a transceiver in the control unit 405.
[0070] The tracking device 400 further includes a switch 425 that
enables an operator to activate or deactivate the tracking device
400. The switch 425 is coupled to the processing circuitry or other
components within the control unit 405. The switch 425 represents
any suitable type of switch, such as a magnetic switch.
[0071] The tracking device 400 is adapted to be removably mounted
to a container, asset or other structure. For example, the tracking
device 400 can include a mounting mechanism for attaching the
tracking device 400 to a number of different types of containers,
tools, equipment, or machinery. For example, the tracking device
400 can be mounted using one or more hex-head screws, socket-head
cap screws, hex-head self-tapping screws, Phillips-head
self-tapping screws, stainless steel banding straps, zip-ties, VHB
tape, and/or magnetic mountings. In another example, the hardened
case 410 can include a number of openings 435 configured to receive
screws, such as hex-head screws or socket-head cap screws. The
tracking device 400 can also be mounted via a standard mounting, a
flush mounting, adhesive tape, or some other mounting technique. In
certain embodiments, the, the tracking device 400 is mounted
without the protective hardened case 410.
[0072] FIG. 5 illustrates an example global tracking and reporting
system in accordance with an embodiment of this disclosure. FIG. 5
illustrates environment 500, depicting a tracking and reporting
system of assets. The embodiment of the environment 500 shown in
FIG. 5 is for illustration only. Other embodiments could be used
without departing from the scope of the present disclosure.
[0073] Tracking device 510 is affixed to an asset 505. The asset
505 represents the equipment or machinery that is to be tracked.
For example, asset 505 can be packaged individually or grouped in
containers such as a box, a crate, a tank, a pallet, and the like.
Tracking device 510 is similar to tracking device 110 of FIG. 1,
tracking device 201 of FIG. 2, tracking device 320 of FIG. 3, and
tracking device 400 of FIG. 4.
[0074] Gateway 520 is affixed to a building 522. Building 522
represents a covered storage facility, an open storage yard, a
vehicle, and the like. The gateway 520 is similar to gateway 112 of
FIG. 1, gateway device 230 of FIG. 2, and gateway 330 of FIG.
3.
[0075] Server 535 receives data originating from the tracking
device 510. Server 535 is similar to server 104 of FIG. 1, server
275 of FIG. 2, and server 310 of FIG. 3.
[0076] Tracking device 510 attempts to ascertain its location using
global navigation satellites 502 via communication 515. The
location information indicates a geographical location of the
tracking device and the associated asset 505. In certain
embodiments, tracking device 510 transmits the location information
directly to communication tower 530. In certain embodiments,
tracking device 510 transmits the location information to the
gateway 520, via communication 525. For example, tracking device
510 transmits the location information to the gateway 520, when the
tracking device 510 is unable access the communication tower 530.
In another example, tracking device 510 routinely transmits a burst
signal containing location data that is received by any nearby
gateway devices 520, regardless of the tracking device ability to
communicate with communication tower 530 directly. In another
example, tracking device 510 transmits the location information to
the gateway 520, when the tracking device 510 detects a gateway.
Communication 525 can be BLUETOOTH, BLE, WiFi, ZIGBEE, Radio
Frequency identification (RFID), or other short range signals.
[0077] In certain embodiments, the gateway 520 transmits the
received location information from the tracking device 510 to the
communication tower 530. In certain embodiments, if the tracking
device 510 is unable to communicate with the global navigation
satellites 502 via communication 515 or if the tracking device 510
is unable to communicate with the communication tower 530, then the
tracking device 510 can transmit a message to the gateway 520. For
example, if the tracking device 510 is unable to obtain location
information via the global navigation satellites 502, then the
message that the tracking device 510 transmits to the gateway, via
communication 525, includes a null location. The null location can
be a blank location, a location designated by a specific string, or
a predetermined designation that indicates an inability to
determine a location. Thereafter, the gateway 520 can augment the
message with the identification number of the gateway 520, a
preprogrammed location of the gateway 520, or the gateway can
attempt to communicate with the global navigation satellites 502,
to provide an approximate location of the asset 505. The
identification number of the gateway 520 allows the server 535 to
match the asset with the gateway 520 to determine an approximate
location of the asset. The preprogrammed location of the gateway
520 allows the server to approximate the location of the asset
based on the location of the gateway 520. The gateway 520 can be
preprogrammed with a geographical location, since the gateway 520
is located on a nonmoving structure such as building 522.
[0078] The gateway 520 then transmits the location message of the
tracking device 510 to the communication tower 530 via
communication 527. The communication 527 can be a satellite WAN, a
cellular WAN, a satellite uplink, ethernet, or internet based, such
as through a Wi-Fi signal. The communication tower 530 then
transfers the location message of the tracking device to the server
535. Server 535 manages and tracks the location of each asset. In
certain embodiments, sever 353 estimates the location of the
tracking device 510 (and the associated asset 505) based on the
location of the gateway 520. For example, if the communication 525
is a short range communication that has a limited distance, such as
BLUETOOTH BLE, ZIGBEE, or RFID, the tracking device 510 must be
within a limited area from the gateway 520.
[0079] FIG. 6 illustrates an example global tracking system with
two gateways in accordance with an embodiment of this disclosure.
FIG. 6 illustrates environment 600 depicting a tracking and
reporting system of assets with multiple gateways. The embodiment
of the environment 600 shown in FIG. 6 is for illustration only.
Other embodiments could be used without departing from the scope of
the present disclosure.
[0080] Tracking devices 630, 632, 634, 636, and 638 are each
affixed to an asset. Tracking devices 630-638 are similar to
tracking device 110 of FIG. 1, tracking device 201 of FIG. 2,
tracking device 320 of FIG. 3, tracking device 400 of FIG. 4, and
tracking device 510 of FIG. 5.
[0081] Gateways 620 and 625 are affixed to building 605. Gateways
620 and 625 are similar to gateway 112 of FIG. 1, gateway device
230 of FIG. 2, gateway 330 of FIG. 3, and gateway 520 of FIG. 5.
Gateway 620 includes a communication range of 623 for short range
communication, such as BLUETOOTH, BLE, WiFi, ZIGBEE, Radio
Frequency identification (RFID), or other short range signals.
Similarly, gateway 625 includes a communication range of 627 for
short range communication, such as BLUETOOTH, BLE, WiFi, ZIGBEE,
Radio Frequency identification (RFID), or other short range
signals.
[0082] Tracking device 630 is located outside building 605 and not
within the communication range 623 of gateway 620 or the
communication range 627 of the gateway 625. Tracking device 630
communicates directly with the server to report its location via a
wide area network as previously discussed similar to network 305
and server 310 of FIG. 3.
[0083] Tracking device 632 is located outside building 605 and
within the communication range 627 of the gateway 625 but also
likely in communication range of the tracking device 632 WAN
interface. Tracking device 630 can communicate directly with the
server via its WAN interface or with gateway 625 to report its
location. In certain embodiments, tracking device 632 first
attempts to communicate with the server via the WAN. If the
tracking device 632 is unable to derive its location or unable to
communicate with a server, then the tracking device 632
communicates a null location to the gateway 625. In yet another
implementation, tracking device 632 communicates with the server
via its WAN interface and also sends the same information through
the gateway 625. In certain embodiments the gateway 625 can the
time employ a straight decimation ratio, employ a time window, or
issue a silent command to the tracking device 632 to limit the
number of messages sent to the server for processing.
[0084] Tracking device 634 is located inside building 605 and
within the communication range 623 of the gateway 620. If tracking
device 634 is unable to derive a geographical location due to being
located inside building 605, the tracking device can transmit a
null location to gateway 620 via communication range 623. The
gateway 620 can determine the signal strength of the received
message from the tracking device 634. Upon receiving the message
with the null location, the gateway 620 augments the location of
the tracking device 634 with the location or identity of the
gateway 620, prior to transmitting the message to the server. The
gateway 620 then transmits the augmented message and the signal
strength of the received message from the tracking device 634. In
certain embodiments the gateway 620 can employ a straight
decimation ratio, employ a time window or age criteria, or issue a
silent command to the tracking device 634 to limit the number of
messages sent to the server for processing.
[0085] Tracking device 636 is located inside building 605 and
within the communication range 627 of the gateway 625. If tracking
device 636 is unable to derive a geographical location due to being
located inside building 605, the tracking device can transmit a
null location to gateway 625 via communication range 627. The
gateway 625 can determine the signal strength of the received
message from the tracking device 636. Upon receiving the message
with the null location, the gateway 625 augments the location of
the tracking device 636 with the location or identity of the
gateway 625, prior to transmitting the message to the server. The
gateway 625 then transmits the augmented message and the signal
strength of the received message from the tracking device 636. In
certain embodiments the gateway 625 can employ a straight
decimation ratio, employ a time window or age criteria, or issue a
silent command to the tracking device 636 to limit the number of
messages sent to the server for processing.
[0086] Tracking device 638 is located inside building 605 and
within the communication range 623 of the gateway 620 and
communication range 627 of the gateway 625. If tracking device 636
is unable to derive a geographical location due to being located
inside building 605, the tracking device can transmit a null
location. The transmitted message can be received by both gateway
620 and gateway 625 via communication range 623 and communication
range 627, respectively. The gateway 620 can determine the signal
strength of the received message from the tracking device 638.
Similarly, the gateway 625 can determine the signal strength of the
received message from the tracking device 638. Upon receiving the
message with the null location, both gateway 620 and gateway 625
augments the location of the tracking device 638 with the location
or identity of the each gateway respectively, prior to transmitting
the message to the server. Each gateway then transmits the
augmented message and the signal strength of the received message
from the tracking device 638. The server may then use the location
of either gateway device 620 or 625 based on received signal
strength or other methods for determining closest proximity to the
tracking device 638.
[0087] FIG. 7 illustrates a method for receiving and processing a
message from a tracking device by a gateway in accordance with an
embodiment of this disclosure. FIG. 7 does not limit the scope of
this disclosure to any particular embodiments. While process 700
depicts a series of sequential steps, unless explicitly stated, no
inference should be drawn from that sequence regarding specific
order of performance, performance of steps or portions thereof
serially rather than concurrently or in an overlapping manner, or
performance of the steps depicted exclusively without the
occurrence of intervening or intermediate steps. For ease of
explanation, the method receiving a location message described with
respect to the gateway 112 of FIG. 1, the gateway device 230 of
FIG. 2 and gateway 330 of FIG. 3. The process 700 is an
amplification of the tracking program 338 of FIG. 3, however, the
process 700 can be used with any other suitable system.
[0088] In block 702, the tracking program 338 receives a message
from a tracking device associated with an asset. In certain
embodiments, the received message includes an identification
parameter associated with the tracking device. In certain
embodiments, the tracking program 338 derives a signal strength
parameter associated with the received message.
[0089] In decision 704, the tracking program 338 determines whether
the received message indicates a location of the tracking device.
For example, the received message can include a blank or null
location value of the received message. In another example, the
received message can include a geographic location of the received
message. In certain embodiments, the tracking program 338 also
determines whether the received message matches a previously
received message.
[0090] If the tracking program 338 determines that the received
message indicates a null location, then in block 706 the tracking
program 338 augments the received message. For example, the
tracking program 338 augments the received message with location
information of the electronic gateway device. In another example,
the tracking program 338 augments the received message with
identification information of the electronic gateway device.
[0091] If the tracking program 338 determines that the received
message includes a location, or after the tracking program 338
augments the received message, then in block 708 the tracking
program 338 transmits the message to the server. In certain
embodiments when the message is transmitted to the server a signal
strength parameter associated with the message, when the message is
also transmitted to the server. The signal strength parameter
indicates the strength of the received message from a tracking
device. In certain embodiments, if multiple messages are received
from the same tracking device within a period of time, the tracking
program 338 limits the number transmissions that the gateway
transmits to the server with respect to that tracking device. For
example, the tracking program 338 can utilize an age criteria by
sending the first received message to the server and then holding
the remaining messages for a period of time. After the period of
time, the tracking program 338 sends a single message selected from
the held messages. The selected message can be the second received
message, the last received message or a randomly selected
message.
[0092] FIG. 8 illustrates a method for a tracking device to
transmit a location message from in accordance with an embodiment
of this disclosure. FIG. 8 does not limit the scope of this
disclosure to any particular embodiments. While process 800 depicts
a series of sequential steps, unless explicitly stated, no
inference should be drawn from that sequence regarding specific
order of performance, performance of steps or portions thereof
serially rather than concurrently or in an overlapping manner, or
performance of the steps depicted exclusively without the
occurrence of intervening or intermediate steps. For ease of
explanation, the method transmitting a location message described
with respect to the tracking device 110 of FIG. 1, the tracking
device 201 of FIG. 2 and tracking device 320 of FIG. 3. The process
800 is an amplification of the tracking agent 328 of FIG. 3,
however, the process 800 can be used with any other suitable
system.
[0093] In block 802, the tracking agent 328 requests request
location information of the tracking device. The tracking agent 328
can request the location of the tracking device through a GNSS
receiver. The tracking agent 328 can request or ascertain the
location of the tracking device through a cellular receiver or any
other location determination means.
[0094] In decision 804, the tracking agent 328 determines whether
location information was received. If the location information was
received, then in block 806 the tracking agent 328 generates a
message that indicates the location of the tracking device. If the
location information was not received, then in block 808 the
tracking agent 328 generates a message that indicates a null
location. In certain embodiments when the tracking agent 328
generates a message, the message also includes a previous location
of the tracking device.
[0095] In block 810, the tracking agent 328 transmits the generated
message. The message may be transmitted to any communication method
available for delivery to the remote server. The message may
contain location information, or null location information as
previously discussed, through a WAN interface, or a local area
network interface, or both.
[0096] Although the figures illustrate different examples of user
equipment, various changes may be made to the figures. For example,
the user equipment can include any number of each component in any
suitable arrangement. In general, the figures do not limit the
scope of this disclosure to any particular configuration(s).
Moreover, while figures illustrate operational environments in
which various user equipment features disclosed in this patent
document can be used, these features can be used in any other
suitable system.
[0097] None of the description in this application should be read
as implying that any particular element, step, or function is an
essential element that must be included in the claim scope. The
scope of patented subject matter is defined only by the claims.
Moreover, none of the claims is intended to invoke 35 U.S.C. .sctn.
112(f) unless the exact words "means for" are followed by a
participle. Use of any other term, including without limitation
"mechanism," "module," "device," "unit," "component," "element,"
"member," "apparatus," "machine," "system," "processor," or
"controller," within a claim is understood by the applicants to
refer to structures known to those skilled in the relevant art and
is not intended to invoke 35 U.S.C. .sctn. 112(f).
[0098] Although the present disclosure has been described with an
exemplary embodiment, various changes and modifications may be
suggested to one skilled in the art. It is intended that the
present disclosure encompass such changes and modifications as fall
within the scope of the appended claims.
* * * * *