U.S. patent application number 13/587548 was filed with the patent office on 2014-05-22 for system and method for providing front-oriented visual information to vehicle driver.
The applicant listed for this patent is Steven Petrillo, Robert Michael Roeger. Invention is credited to Steven Petrillo, Robert Michael Roeger.
Application Number | 20140139669 13/587548 |
Document ID | / |
Family ID | 50727565 |
Filed Date | 2014-05-22 |
United States Patent
Application |
20140139669 |
Kind Code |
A1 |
Petrillo; Steven ; et
al. |
May 22, 2014 |
SYSTEM AND METHOD FOR PROVIDING FRONT-ORIENTED VISUAL INFORMATION
TO VEHICLE DRIVER
Abstract
This invention provides a camera system installed on the front
end of a vehicle, either on the left front, the right front, or
both sides, that prevents accidents resulting from the driver's
propensity to protrude into oncoming traffic to view that traffic.
The camera is linked via wired or wireless connection to an onboard
computer and a commercially available navigation display that is
placed within the passenger compartment of the vehicle. The driver
reviews a visual description on the display of any oncoming traffic
in the form of motor vehicles, pedestrians, cyclists, animals and
the like on the navigation display via a single screen, split
screen or alternating screens. The camera system is furnished with
a speed sensor that detects when the vehicle reaches a threshold
speed of 3 miles per hour to activate or de-activate the camera.
This camera system can be retrofitted into older vehicles.
Inventors: |
Petrillo; Steven; (Pelham,
NH) ; Roeger; Robert Michael; (Danville, NH) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Petrillo; Steven
Roeger; Robert Michael |
Pelham
Danville |
NH
NH |
US
US |
|
|
Family ID: |
50727565 |
Appl. No.: |
13/587548 |
Filed: |
August 16, 2012 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
61592505 |
Jan 30, 2012 |
|
|
|
Current U.S.
Class: |
348/148 ;
348/E7.085 |
Current CPC
Class: |
B60R 2300/406 20130101;
B60R 2300/802 20130101; B60R 2300/404 20130101; B60R 2300/605
20130101; B60R 2300/302 20130101; B60R 1/00 20130101 |
Class at
Publication: |
348/148 ;
348/E07.085 |
International
Class: |
H04N 7/18 20060101
H04N007/18 |
Claims
1. A system for providing front-oriented visual information to a
vehicle driver comprising: at least one camera located at least in
one of the group consisting of the left front quarter panel or the
right front quarter panel, mounted so that the camera does not
protrude from the left or right quarter panel; a speed sensor for
detecting vehicle speed; a display within the vehicle for providing
the driver with at least one of images and video feed of a scene
imaged by the camera; and an onboard computer for processing the
detected vehicle speed and for selectively allowing the images and
video feed to be displayed on the display based upon whether the
vehicle speed is less than a threshold speed.
2. The system as set forth in claim 1, wherein the display is an
onboard navigation screen.
3. The system as set forth in claim 1, wherein the camera images a
field of view of approximately 90 degrees in at least one of
horizontal plane and a vertical plane.
4. The system as set for in claim 1, wherein the at least one
camera includes a first camera is mounted on the left front quarter
panel and a second camera mounted on the right front quarter
panel.
5. The system as set forth in claim 3, wherein the display of at
least one of images and video from the camera and a display of at
least one of images and video from the other camera is displayed on
a split screen image.
6. The system as set forth in claim 1, wherein the camera includes
a user-controllable zoom lens.
7. The system as set forth in claim 1, wherein the camera is
furnished with a co-mounted proximity sensor.
8. The system as set forth in claim 7, wherein the proximity sensor
in constructed and arranged to detect a near object and causes a
visual alert message to be displayed on the display.
9. The system as set forth in claim 8, wherein the proximity alert
provides by a sound alert signal.
10. The system as set forth in claim 1, wherein the threshold speed
is approximately 3 miles per hour.
11. The system as set forth in claim 1, wherein the threshold speed
can be adjusted by the driver of the vehicle.
12. The system as set forth in claim 1, wherein the system is voice
activated.
13. The system as set forth in claim 13, wherein the threshold
speed can be modified by the driver by a spoken command that is
received and processed by the computer.
14. The system of claim 12, wherein the threshold speed can be set
at one of a sequence of speed ranges.
15. The system of claim 12, further comprising a voice activation
process and wherein the threshold speed is variably set by the
driver.
16. The system as set forth in claim 1, wherein the display is a
projected display.
17. The system as set forth in claim 1, further comprising a
proximity and speed sensor that determines the range of an oncoming
object and wherein the computer provides an alert when the object
is at least one of (a) within a predetermined distance and (b)
approaching at a predetermined speed.
18. The system as set forth in claim 1 wherein the camera is
located in a front headlight pod and includes a wireless link to
communicate with at least one of the display and computer.
19. The system as set forth in claim 18 wherein the pod includes a
solar power assembly that powers the camera and wireless link.
20. A method for providing visual information to a driver of a
vehicle comprising steps of: selectively activating at least one
camera when the vehicle is operating below a threshold speed, the
camera being mounted to one of the group consisting of a left front
quarter panel or a right front quarter panel of the vehicle without
protruding from the left or right front quarter panel; receiving
and displaying visual information from the camera of at least one
of images and video of a scene in a location containing oncoming
traffic.
21. A system for providing visual information to a driver of a
vehicle, comprising: at least one camera located at least in one of
the group consisting of the left front quarter panel or the right
front quarter panel, mounted so that the camera does not protrude
from the left or right quarter panel; a display within the vehicle
that provides the driver with at least one of images or video feed
of a scene imaged by the camera; and an onboard computer that
causes the images or video feed to be displayed on the display.
Description
RELATED APPLICATION
[0001] This application claims the benefit of U.S. Provisional
Application Ser. No. 61/592,505, filed Jan. 30, 2012, entitled A
FRONT LEFT VEHICLE CAMERA ALLOWING SAFETY PULLING OUT SHOWING
ONSCREEN VISUAL TO DRIVER, the entire disclosure of which is herein
incorporated by reference.
FIELD OF THE INVENTION
[0002] This invention relates to vehicle safety devices, and more
particularly to visual displays that enhance vehicle safety.
BACKGROUND OF THE INVENTION
[0003] Each year, thousands of people die or are badly injured in
automobile accidents. One situation that causes needless accidental
deaths and injury arises when a car moves into a street or motorway
from a position that is perpendicular to the axis of that street or
motorway. This can occur when a vehicle is moving out of a street,
parking garage or parking space. Drivers pulling in to oncoming
traffic from such a position must begin by placing the front end of
their vehicle far enough out into the street that they can now
directly view the oncoming traffic. Cars parked along the side of
the street can impair that visual "read" of the traffic, forcing
the driver to protrude ever farther into the oncoming traffic, at
increasing risk to life, limb and vehicle to pedestrians, cyclist,
animals and other motorists.
[0004] The present state of the art for vehicle safety includes the
use of cameras mounted on the rear of vehicles to reduce collisions
occurring as a result of a vehicle backing up. These systems
utilize a small, pre-positioned stationary camera on the rear
exterior of the vehicle and a visual display within the driver's
compartment. This can be accompanied by alarm devices that utilize
modern proximity alert devices (for example, infrared technology)
to detect an unseen obstacle (such as a child or a housecat) and
call the driver's attention to the display and the obstacle.
[0005] However, such systems have a limited field of view and are
easily damaged or knocked off the vehicle. Likewise, they often
require a dedicated display that adds further distraction to the
driver. In addition, such cameras often remain activated longer
than needed. Moreover, such cameras are not mounted to contemplate
particular hazardous situations, such as the pull out into traffic
to execute a turn or a traffic merge.
SUMMARY OF THE INVENTION
[0006] This invention overcomes disadvantages of the prior art by
providing in a vehicle, a flush-mounted front left vehicle camera
system and method for operating the same. The camera is linked to
an onboard computer and a navigation display that is placed within
the passenger compartment of the automobile. The driver receives a
visual description on the display of any oncoming traffic in the
form of motor vehicles, pedestrians, cyclists, animals and the
like. The camera system is furnished with a speed sensor that
detects when the automobile reaches a threshold speed of 3 miles
per hour. The front left vehicle camera system is activated and
de-activated automatically, based on the selected threshold speed.
The camera system activation and de-activation process begins with
the vehicle that includes the camera being shifted into the "Drive"
gear. The video signal is transmitted to the navigation display and
displayed thereon in place of the ordinary navigation screen, in
single or split screen. As soon as the driver accelerates to the
threshold speed, a signal is sent to the computer to shut off the
camera. The computer now shuts down the camera and instructs the
navigation display to return its screen display to the ordinary
navigation display.
[0007] This system advantageously improves safety for vehicles
moving into a line of traffic (turn) from a position that is
perpendicular to the flow of that traffic and that are pulling out
of a side street, building, garage or parking spot (merge). Often,
such vehicles face hazards in performing these maneuvers because
the driver must pull far enough forward to visually observe the
near lane of traffic from his or her vantage point--which is
typically several feet behind the front end of the vehicle.
Illustratively, a protrusion of 4-6 feet or more is desirable in
order for the driver to view the lane and determine whether to
proceed or wait. During the movement to the protruded position, the
front end of the car is vulnerable to being struck by other
vehicles that are unseen to the driver, resulting in numerous
accidents. The illustrative system and method provides a
flush-mount camera at the specific location on the vehicle to
minimize this hazard by transmitting an image of the scene of
oncoming traffic to the driver from a vantage point that is
essentially as far forward as possible.
[0008] Illustratively, the camera is located in and is flush with
the left front quarter panel. The front quarter panel is the outer
portion of the vehicle forward of the passenger compartment along
the left and right sides and typically includes a marker light and
headlight assembly. The camera is generally free of any external
protrusion relative to the vehicle body and/or its quarter panel,
thereby avoiding potential damage to the camera and/or a restricted
field of view. The illustrative camera can image a field of view
within an arc of approximately 90 degrees in both the horizontal
and vertical axes (thereby defining a viewing cone). Other cross
sectional geometries--e.g. a geometry defining an elliptical cone
with a wider horizontal axis--are also contemplated. In various
embodiments, an associated camera lens can define a field of
greater or lesser than 90 degrees in the horizontal and/or vertical
axes. It is contemplated that the system can allow the driver to
select the desired angle and/or range of view via an interface or
other adjustment mechanism within the vehicle. The camera can also
include a preset or variable zoom lens, thereby allowing the driver
to focus over a greater or lesser distance.
[0009] This display can also be accompanied by a proximity alert.
In alternate embodiments, the visual display can use a heads-up
projected display system, the onboard computer display, a separate
and dedicated display or a link to a head-mounted glasses display
worn by the driver. In other embodiments, there can be a plurality
of two (or more) cameras mounted in each of the front quarter
panels, one of the left side as described above, and one on the
right side, for vehicles entering a one-way street with traffic
travelling from right to left relative to the driver or vehicles
that may be transported between the United Kingdom and Europe, and
back, or vice-versa. It is contemplated that such a camera system
as set forth above can be fitted onto trucks of all sizes,
recreational vehicles, tractors, heavy equipment, cycles and
motorcycles, quadricycles, military vehicles (such as tanks and
other armored vehicles with limited visibility and massive height),
or other vehicles.
[0010] In an illustrative embodiment, a system and method for
providing front-oriented visual information to a vehicle driver
includes a flush-mounted camera located at least in the left front
quarterpanel. Alternatively, or additionally, a flush-mounted
camera can be mounted on the right front quarterpanel. A speed
sensor detects vehicle speed. This speed sensor can be based upon
an existing vehicle system, such as the braking system and/or the
speedometer or can be a separate sensor. A display (e.g. a screen
or projection) within the vehicle provides the driver with at least
one of images and video feed of a scene imaged by the camera. An
onboard computer (or other processing device) processes the
detected vehicle speed selectively allows the images and video feed
to be displayed on the display based upon whether the vehicle speed
is less than a threshold speed. In general, the computer instructs
the camera system and or certain connected components to activate
and deactivate depending on the relative vehicle speed.
Illustratively, the display can comprise an onboard navigation
screen. The camera can image a field of view of approximately 90
degrees in at least one of a horizontal plane and a vertical plane.
Where two cameras are employed (i.e. on each of the left front and
right front quarter panel), the display of images and/or video from
one camera and the display images and/or video from the other
camera is performed using a split screen image.
[0011] The camera can also include a user-controllable zoom lens
that allows the driver to vary the field of view and/or
magnification. Either or both cameras can include a co-mounted
proximity sensor. The proximity sensor can be constructed and
arranged to detect a near object, and cause a visual alert message
to be displayed on the display and/or an audible alert to be played
via a speaker. Illustratively, the threshold speed can be
approximately 3 miles per hour as such speed is considered
sufficiently low that the driver can react appropriately while
interacting with the display screen. This threshold can be
user-adjustable via an interface within the vehicle in various
embodiments. More generally some or all of the functions of the
system can be operated using voice activation.
[0012] The camera system can be provided with a proximity and speed
sensor that determines the range of an oncoming object and
transmits the data to the computer. The computer provides an alert
when the object is at least one of (a) within a predetermined
distance and (b) approaching at a predetermined speed. The camera
can be retrofitted into an existing front headlight pod and
includes a wireless link to communicate with at least one of the
display and computer. The system can include a solar power assembly
that powers the camera and wireless.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The invention description below refers to the accompanying
drawings, of which:
[0014] FIG. 1 is a schematic view of an exemplary front end camera
system mounted in a vehicle, according to an illustrative
embodiment;
[0015] FIG. 2 is a schematic view of the activation and
de-activation of the camera system, according to an illustrative
embodiment;
[0016] FIG. 3 is a view of two exemplary automobiles of different
shapes having an exemplary left front camera, according to an
illustrative embodiment;
[0017] FIG. 4 is a schematic view of a plurality of fields of view
for exemplary front-end cameras situated in a vehicle according to
an illustrative embodiment;
[0018] FIG. 5 is an overhead view of an intersection with oncoming
traffic wherein one of the vehicles employs a camera system,
according to an illustrative embodiment;
[0019] FIG. 6 is a schematic view of the activation of the camera
system following selection using proximity sensors to determine the
direction of traffic, according to an illustrative embodiment;
[0020] FIG. 7 is a schematic view of the activation of the camera
system following selection using proximity sensors to determine the
density of traffic, according to an illustrative embodiment.
[0021] FIG. 8 is a view of an exemplary single screen display of
oncoming traffic in a single lane, according to an illustrative
embodiment;
[0022] FIG. 9 is a view of an exemplary split screen display of
oncoming traffic in opposite lanes, according to an illustrative
embodiment; and
[0023] FIG. 10 is a frontal view of an exemplary front headlight
housing with a front end camera retrofitted into the housing,
according to an illustrative embodiment.
DETAILED DESCRIPTION
[0024] When a motor vehicle driver is situated so as to be
perpendicular to the flow of traffic and pulling out of a side
street, building, garage or parking spot, there is a danger to that
driver and other operators. In order to see traffic in the oncoming
lane, the driver has to pull far enough forward to visually observe
the near lane of traffic. Other vehicles and objects placed along a
roadway and other obstructions can prevent a clear view and
necessitate a driver pulling forward into the near lane. Given that
most vehicles have a front end that includes a motor or a storage
compartment with a length of about 2-4 feet and that a driver
typically sits another 2 feet or more from the dashboard, a
protrusion of 4-6 feet or more is desirable in order for the driver
to view the lane and determine whether to proceed or wait. During
the movement to the protruded position, the front end of the car is
vulnerable to being struck by other vehicles that are unseen to the
driver. This results in numerous accidents. The installation of the
front left vehicle system reduces the protrusion of the vehicle to
about six inches. In the present application, the term "front left"
refers to an American-style roadway in which the oncoming traffic
approaches from the left relative to the driver when entering the
nearest lane on a two-way street. It is expressly contemplated that
in an English-style system, in which the oncoming traffic
approaches from the right relative to the driver that the camera
will be mounted on the front right of the vehicle.
[0025] FIG. 1 is a schematic view of an exemplary front left
vehicle camera system 100. The camera 102 is installed in the front
left quarter panel region of the vehicle (not shown). An optional
front right camera 103 will be described more fully below. Camera
102 is linked via wired or wireless connection to an onboard
computer 104 with a control process 105 and a commercially
available navigation display 106 that is placed within the
passenger compartment of the vehicle. The driver receives a visual
description on the display 106 of any oncoming traffic in the form
of motor vehicles, pedestrians, cyclists, animals and the like. The
camera system 100 can be powered by a 12 Volt power supply or other
applicable power supply having a higher or lower voltage and
current. The camera system equipped with a speed sensor 108 that
detects when the vehicle 100 reaches a threshold speed, in this
embodiment, of 3 miles per hour. The speed sensor 108 receives
input from the vehicle transmission (not shown) and the computer
104. The speed sensor 108 transmits the information for the
threshold speed to the display 106. The wiring harness uses
conventional connectors and existing "off the shelf" technology.
The computer 104 can be provided with a transmitter/receiver for
wireless communication with wireless sensors and cameras.
[0026] The 3 miles per hour threshold speed is determined in part
by the transmission after the vehicle is put into the "Drive" gear
setting 110 and is communicated both to the speed sensor 108 and
the computer 104 simultaneously via wired or wireless
communication. It is contemplated that the threshold speed can be
set by the driver to a higher or lower speed, or to a range,
depending on the driver's requirements. For example, a driver can
require a range of 2-4 miles per hour, 3-5 miles per hour or 5-10
miles per hour, depending on the desired start-up velocity. In a
situation where the traffic is moving quickly, a higher range can
be desired. The threshold speed sensor can interface with any
number of the systems within the vehicle that measure speed. These
include the speedometer, anti-lock braking system, the door lock
system, engine rpm, GPS (ground positioning satellite) or
combination thereof. In a further embodiment, the activation and
de-activation can be voice-activated by the driver. It is further
contemplated that this camera system can be retrofitted into older
vehicles.
[0027] The computer 104 can include an optional voice activation
process 107 that is accessed via a microphone 109. The computer 120
can also be provided with a memory application 120 that records
events and pullouts for records or later analysis. Activating the
various settings for threshold speed and other settings can be
accomplished via the display screen, a touch screen interface, a
remote control or other device. In a further embodiment, the
vehicle can be equipped with a level detection device 134 that
determines the attitude of the vehicle relative to the horizon. The
vehicle camera(s) can be equipped with one or more servo motors (or
another type of actuator of conventional design, such as a stepper)
to orient at least one of the cameras, as will be described more
fully below. The computer 104 can be provided with a process for
receiving the information from the level detection device 134 that
determines the optimal attitude for the cameras and a camera
attitude control process 132 instructs the camera servo motors to
make the proper adjustments. This attitude adjustment control can
be manually operated 136 by the user.
[0028] In a further embodiment, the computer 104 can be provided
with a process for receiving and acting upon data from proximity
sensors, as described more fully below. The proximity sensors
transmit data to the computer 104 that includes the detected
proximity and speed of the nearest vehicle 140 in the traffic lane
and processes that information 142 for display. In an additional
embodiment, the vehicle has a proximity alert, as set forth more
fully below, that is activated by the proximity speed process 142
and generates an alert 144.
[0029] The front left vehicle camera system is activated and
de-activated automatically as set forth in FIG. 2. Note, as used
herein the terms "activated" and "de-activated" can relate to at
least one of the activation/de-activation of the actual camera, the
activation/de-activation of the display and/or the
activation/deactivation of the communication/data link(s) between
the camera, computer and display. The camera system activation and
de-activation process 200 begins with the vehicle that includes the
camera being shifted into the "Drive" gear 202. The transmission
instructs the computer that the vehicle is in the "Drive" gear and
the vehicle's computer turns on 204 the camera and starts the video
camera function 206. The video signal is transmitted 208 to the
navigation display and displayed thereon in place of the ordinary
navigation screen. As soon as the driver pulls out and accelerates
to the threshold speed 210, a signal is sent to the speed sensor
and the speed sensor instructs the computer 212 that vehicle is
traveling at the threshold speed of 3 miles per hour and to shut
off the camera. The computer now shuts down the camera and
instructs 214 the navigation display to return its screen display
to the ordinary navigation display.
[0030] FIG. 3 is a view of two illustrative automobiles of
different shapes having an illustrative left front camera. Vehicle
300 is a sports car type vehicle with two seats and a reclined
driver position. The distance D between the reclined driver
position 302 and the camera location 304 (about six inches to the
rear of the forward left leading edge of the vehicle) is about 6
feet. The camera 306 is located in and flush with the left front
quarter panel 308, providing the driver with a full visual display
of oncoming objects. The camera 306 is not externally mounted and
does not protrude from the quarter panel. Externally mounted
cameras tend to produce blind spots that a flush-mounted camera
does not produce. Externally mounted cameras are physically more
vulnerable to being inadvertently damaged due to bushes, obstacles,
stones and other physical risks. The camera 322 mounted in the left
front quarter panel 324 of the sedan-type vehicle 320 is also
flush-mounted. Cameras 306, 322 be provided with a field of view
that describes an arc of about 90 degrees in the horizontal and
about 90 degrees in the vertical axes according to the illustrative
embodiment. The cameras can be auto-focused or selectively focused
by the user. It is contemplated that camera lens with fields
greater or lesser than 90 degrees in the horizontal and vertical
axes can be utilized. It is contemplated that a lens giving a field
of view as great as 150 degrees can be used. The camera lens can be
provided with a zoom lens that is automatically operated by the
computer 104 and/or the user. As noted above, the camera can be
furnished with an integral proximity sensor and the computer can be
activated thereby to provide a proximity alert, either by an audio
alert, visual alert or a combination thereof. The proximity sensor
is a commercially available sensor and the types available for this
application can include capacitive, capacitive displacement
sensors, Doppler effect (sensor based on effect), eddy-current,
inductive, laser rangefinder, infrared, sonic, ultrasonic, LIDAR,
stereoscopic, magnetic, passive optical, passive thermal infrared,
reflective photocell, radar, ionizing radiation reflector or
thermal sensors. The proximity speed process can process a
continuous stream of information from the proximity sensor(s) or a
series of frame-by-frame images. In general, the proximity speed
process 142 uses known technologies to derive distance and compare
distance to time so as to provide a continuous velocity reading for
the object.
[0031] As stated above, the camera projects an image of the roadway
within the field of view and assists the driver in looking for
oncoming traffic. This is projected as a single screen or, in the
case of cameras mounted on each front corner, as a split screen or
alternating. It is contemplated that the driver might see in one or
both directions, or selectively view one or the other. The camera
can be provided with a preset or variable zoom lens, allowing the
driver to focus over a greater or lesser distance.
[0032] FIG. 4 is a schematic view of the field of view for
front-end cameras 402 mounted on an exemplary vehicle 400. The
lateral axis LA is perpendicular 404 to the vehicle center axis VCA
and passes through the center points of the front-end cameras 402
according to an illustrative embodiment. The lateral axis LA is
defined as an axis projected perpendicular to the vehicle
centerline axis, which is the centerline of the vehicle and
projects from front to rear. The field of view of each camera 402
is depicted in this embodiment as describing 90 degrees. The camera
field of view is adjustable up to approximately 30 degrees forward
AF of the lateral axis LA and up to approximately 10 degrees
rearward AR of the lateral axis. It is expressly contemplated that
the angular adjustments forward and rearward can be greater or
lesser as needed. The optical axis 410 (shown in dashed line) of
cameras oriented on the lateral axis LA and having a field of view
of 90 degrees will be provided with a forward limit 412 (shown in
dashed line) of 45 degrees forward of the lateral axis LA and a
rearward limit 414 (shown in dashed line) of 45 degrees rearward of
the lateral axis LA. When a camera is advanced so that its optical
axis 420 (shown in dotted lines) is oriented 30 degrees forward of
the lateral axis LA, its forward limit 422 (shown in dotted lines)
is 80 degrees forward of the lateral axis LA and its rearward limit
424 (shown in dotted lines) is 15 degrees rearward of the lateral
axis LA. When the camera is oriented so that its optical axis 430
(shown in dashed and double dotted line) is 10 degrees rearward of
the lateral axis LA its forward limit 432 (shown in dashed and
double dotted line) is 35 degrees forward of the lateral axis LA
and its rearward limit (shown in dashed and double dotted line) is
55 degrees rearward of the lateral axis LA. In further embodiments
when the field of view is greater or lesser than 90 degrees and the
range of camera orientation if greater or lesser, these field of
view limits will vary. Note, as used herein, directional and
orientational terms such as "top", "bottom", "front", "rear", "up",
"down", "forward", "rearward", "horizontal", "vertical", "right",
"left", "above" and "below" as well as their synonyms, are meant to
be relative only and not absolute with respect to the acting
direction of gravity.
[0033] The optical axis can be adjusted on the vertical axis. In an
embodiment, the optical axis can be raised approximately 30 degrees
and lowered approximately 10 degrees relative to the horizon. This
vertical adjustment can be useful with approaching a hillside road
from an entry that is relatively level. Adjustment of the camera
elevation can compensate for the slope of the traffic lane and
avoid potential blind spots.
[0034] FIG. 5 is a look-down view of an exemplary intersection and
depicts an vehicle 500 that is furnished with an installed front
left camera system 502. In this embodiment, the vehicle 500 is
situated at point P1 on an intersecting street 504 and is preparing
to enter a street 506 that is perpendicular to the intersecting
street 504. The driver of the vehicle 500 view of the near lane 508
is obstructed because of a line of parked cars 510. There is an
oncoming car 512. In an embodiment, the distance D1 between
vehicles is about 100 feet and reducing based on the rate of travel
of vehicle 512. The driver of vehicle 500 moves forward six inches
to point P2 and uses the camera system. The front left side camera
414 provides a view across a 90 degree field of view that includes
an obstructing building 516. The driver inches forward until a view
of the lane 508 beyond the obstructing building 516 and line of
cars 510 can be obtained. The optical axis of the camera field of
view 520 is oriented approximately 25 degrees forward of the
vehicle lateral axis LA and the field of view is set at 90 degrees.
The forward limit 522 of the camera field of view. The driver
visually checks the projected camera view on the navigational
display (not shown) and notices approaching vehicle 512. At this
point, the driver cannot yet visually see vehicle 512 without the
front left camera 514. As set forth above, this display can be
accompanied by a proximity alert. The driver of vehicle 500 is now
aware of vehicle 512 and decides to refrain from moving into lane
508 until vehicle 512 has passed. In a traditional vehicle not
having the camera system, the driver of vehicle 500 was required to
advance to point P3, well into the path of vehicle 512, before
being able to personally view the oncoming traffic.
[0035] The use of proximity sensors to automatically select one or
the other camera for display is shown in FIGS. 6 and 7. Referring
now to FIG. 6, a vehicle is equipped with two front end cameras
mounted each of the front end quarter panels. Each camera is
equipped with a proximity sensor. The automatic process 600 begins
when the vehicle arrives at the intersection 602 and the driver
moves forward to cause the front end of the vehicle to protrude 4-6
inches into traffic 604. The proximity sensors begin scanning
either direction and the data gathered from each is relayed to the
computer 606. The computer processor evaluates the data and
determines the direction of traffic in the near lane. When that
process is complete, the computer determines which camera is
preferred 608 and the feed from that camera is shown on the display
610. In the event that there is no traffic present, the camera
display will revert to a default setting, for example, to a split
screen display.
[0036] As further shown in FIG. 7, a process to automatically
select the camera to be displayed uses proximity sensors to
determine traffic density 700. The begins when the vehicle arrives
at the intersection 702 and the driver moves forward to cause the
front end of the vehicle to protrude 4-6 inches into traffic 704.
The proximity sensors begin scanning either direction to read
traffic density in both directions and the data gathered from each
is relayed to the computer 706. The computer processor evaluates
the data and determines the density of traffic in the near lane.
When that process is complete, the computer determines which camera
is preferred 708 and the feed from that camera is shown on the
display 710. In the event that there is no traffic present, the
camera display will revert to a default setting, for example, to a
split screen display.
[0037] The displayed view from the cameras can be displayed on the
navigational device display, as set forth above. FIGS. 8 and 9 show
the view as projected on the display using single and split screen
views. FIG. 8 shows the view 800 from a left front-end camera with
attached proximity sensor. The user has protruded the vehicle into
the traffic lane far enough past a parked vehicle 802 for the
camera to see the oncoming traffic 804. The proximity sensor
detects oncoming vehicle 806 and detects that the vehicle is about
50 feet away and closing on the user. The proximity sensor
transmits this data to the computer (not shown) and the computer
presents the proximity sensor information 808 as part of the
display. In an illustrative embodiment, the information provided is
that a vehicle is approaching 810 at a rate of 15 miles per hour
812 and is at a distance of 50 feet from the camera. It is
expressly contemplated that the information can be provided using
the metric system and with other information. This information is
also sent through the proximity sensor alert process (144 in FIG.
1, above) and meets the alert process criteria for generating an
alert 812 that is included on the display. It is expressly
contemplated that this alert can be flashing, accompanied by sounds
and/or other stimulating sounds and lights to get the user's
attention and discourage the user from entering the lane and
creating a potential crash. Alternatively, or additionally, the
alert cause the entire screen to assure a particular tint (e.g.,
red) to attract the user's attention.
[0038] FIG. 9 is a view of a split screen display 900 with the left
view 902 showing the display view of FIG. 8 above. The right screen
904 shows a view of the street opposite from the view of the left
screen 902 and is the view of the right front-end camera with an
attached proximity sensor. There is a parked car 904 along the curb
and the near lane 906 is clear of obstacles to the right. The
farther lane 908 is mostly clear, with one approaching vehicle 910
at a distance. The proximity sensor notes the approaching vehicle
910 and transmits this data to the computer (not shown) and the
computer presents the proximity sensor information 912 as part of
the display. The computer uses one or more algorithms to determine
speed, distance, high speed and to evaluate if an alert should be
issued to the user when a predetermined criteria/threshold has been
met. In an illustrative embodiment, the information provided is
that a vehicle is approaching 910 at a rate of 15 miles per hour
812 and is at a distance of 200 feet from the camera. This
information is also transmitted to the proximity sensor alert
process (as set forth above) but it does not meet the criteria and
no alert is provided.
[0039] The front-end camera system can be provided as part of a kit
and can be retrofitted into existing vehicle headlight pod
assemblies. FIG. 10 shows the left side of the front end of a
vehicle 1000 having a headlight housing 1002. The user has caused a
mounting hole 1004 to be cut into the inner wall 1006 of the
housing 1002. The camera assembly 1008 with the proximity sensor
1010 is situated a distance DA of approximately six inches from the
front end of the car 1012. The camera system and proximity system
do not interfere with the functionality of the headlight 1014. The
installed camera and sensor assembly can be powered directly from
the vehicle wiring harness or by another power source (for example,
solar). It is contemplated that the solar cell is located in a
transparent part of the pod or externally mounted in a holder on
the exterior of the front quarter panel. The camera and proximity
data can be transmitted by wired communication or by wireless
communication. It is further contemplated that the camera and
sensor assembly can include a local control circuit for guided or
automatic control.
[0040] It is expressly contemplated that the front-end camera can
be provided with a built-in sensor that detects the speed and
distance of an oncoming vehicle. This can be added to a system
having a camera and a proximity sensor or to a system that is a
camera on its own. In the latter case, the data from the detected
range and speed of the oncoming traffic can be used to trigger a
proximity sensor, based on pre-set parameters. Vehicular front-end
cameras equipped with laser rangefinders use commercially available
devices, including laser, radar parallax, and/or other
technologies.
[0041] It should be clear that the system described above enhances
the safety of the driver under ordinary traffic conditions and in
more challenging situations. The system desirably avoids undue
distraction and can be applied readily to re-manufacture or
retrofit applications.
[0042] It should also be clear that the system can employ
conventional, commercially available components, and/or customized
components in a manner known to those of skill in the art. Also, as
used herein the terms "process" and/or "processor" should be taken
broadly to include a variety of electronic hardware and/or software
based functions and components. Moreover, a depicted process or
processor can be combined with other processes and/or processors or
divided into various sub-processes or processors. Such
sub-processes and/or sub-processors can be variously combined
according to embodiments herein. Likewise, it is expressly
contemplated that any function, process and/or processor here
herein can be implemented using electronic hardware, software
consisting of a non-transitory computer-readable medium of program
instructions, or a combination of hardware and software.
[0043] The camera system as set forth above can include a
solar-based power supply that includes a solar power collector and
a power storage battery, enabling the system to be fully or
partially powered by solar power.
[0044] The camera system described above can be equipped with
cameras that operate both in daylight conditions and at night. It
is expressly contemplated that the system can be provided with a
night-time application that utilizes existing night vision
technology (for example, infrared, passive, photomultiplier devices
or other night vision system that acquires information in various
wavelengths). This can be utilized to detect non-lighted objects in
the motor way, including but not limited to trashcans, pedestrians,
animals, wrecked vehicles and other hazards.
[0045] The foregoing has been a detailed description of
illustrative embodiments of the invention. Various modifications
and additions can be made without departing from the spirit and
scope of this invention. Features of each of the various
embodiments described above can be combined with features of other
described embodiments as appropriate in order to provide a
multiplicity of feature combinations in associated new embodiments.
Furthermore, while the foregoing describes a number of separate
embodiments of the apparatus and method of the present invention,
what has been described herein is merely illustrative of the
application of the principles of the present invention. For
example, the visual display can use a heads-up projected display
system, the onboard computer display, a separate and dedicated
display or a link to a head-mounted glasses display worn by the
driver. In other embodiments, there can be two cameras mounted in
each of the front quarter panels, one of the left side as described
above, and one on the right side, for vehicles entering a one-way
street with traffic travelling from right to left relative to the
driver or vehicles that may be transported between the United
Kingdom and Europe, and back, or vice-versa. It is further
contemplated that GPS systems can be used to determined the
national driving customs based on location and to automatically
preset the cameras. The GPS location can also be used to preset
based on information of traffic patterns based on location and the
latest available street traffic directions. It is contemplated that
such a camera system as set forth above can be fitted onto trucks
of all sizes, recreational vehicles, tractors, heavy equipment,
cycles and motorcycles, quadricycles, military vehicles (such as
tanks or other armored vehicles), or other vehicles. Accordingly,
this description is meant to be taken only by way of example, and
not to otherwise limit the scope of this invention.
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