CN117392858B - Traffic thermal sensing camera system based on multiple information - Google Patents
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- CN117392858B CN117392858B CN202311638537.6A CN202311638537A CN117392858B CN 117392858 B CN117392858 B CN 117392858B CN 202311638537 A CN202311638537 A CN 202311638537A CN 117392858 B CN117392858 B CN 117392858B
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- 238000010191 image analysis Methods 0.000 claims abstract description 51
- 238000012544 monitoring process Methods 0.000 claims abstract description 50
- 238000003384 imaging method Methods 0.000 claims abstract description 15
- 238000009529 body temperature measurement Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 5
- 238000001931 thermography Methods 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000004861 thermometry Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/04—Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/07—Controlling traffic signals
- G08G1/08—Controlling traffic signals according to detected number or speed of vehicles
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/095—Traffic lights
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/20—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only
- H04N23/23—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only from thermal infrared radiation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Signal Processing (AREA)
- Traffic Control Systems (AREA)
Abstract
The invention relates to the technical field of image communication, in particular to a traffic thermal imaging system based on multi-element information, which comprises: the temperature monitoring module is used for monitoring the temperature of each area of the vehicle transportation junction and generating a temperature monitoring image according to the temperature of each area; the traffic imaging module is used for shooting the corresponding area of the traffic junction according to the temperature monitoring image so as to form a junction snapshot image; the image analysis module is used for determining a vehicle congestion position according to the temperature monitoring image and the hub snapshot image and determining a corresponding signal allocation strategy according to the vehicle congestion position; the signal allocation module is used for allocating the channel-borrowing signal lamp according to a signal allocation strategy; the traffic junction temperature control module is used for adjusting the signal lamp according to the temperature of the traffic junction, so that the fluffing capacity of the traffic junction is effectively improved, and the timeliness of traffic thermal sensing camera shooting is effectively improved.
Description
Technical Field
The invention relates to the technical field of image communication, in particular to a traffic thermal sensing camera system based on multivariate information.
Background
The left-turn lane is applied to a large scale in part of cities, so that urban road congestion caused by untimely left-turn can be effectively relieved, a visual tool is utilized to assist a signal lamp for left-turn lane, and the problem of traffic congestion caused by accidents can be more effectively relieved.
Chinese patent application publication No.: CN108234854B discloses an intelligent wireless hearing thermal induction camera, which comprises a camera body and a controller, wherein a pyroelectric infrared sensor is installed on the camera body and is connected with the controller, a sound sensor is also installed in the camera body, a supporting frame is installed at two ends of the camera body, a first box body is installed at the lower end part of the supporting frame, a first driving device for driving the camera body to rotate is installed in the first box body, and the controller is connected with the sound sensor and controls the first driving device to rotate. The sound sensor is arranged in the camera, when a real object passes through the camera, the camera can adjust the optimal position to intensively shoot the object under the drive of the first driving device, the pyroelectric infrared sensor can enable the camera to perform thermal sensing shooting under the condition of weaker light, the camera can be used for approximately shooting some body appearance characteristics and current behaviors of the object, and the monitoring force of the camera is large.
However, the above method has the following problems: the device cannot be applied to a left-turn lane by a road, and cannot assist in dredging traffic.
Disclosure of Invention
Therefore, the invention provides a traffic thermal sensing imaging system based on multi-element information, which is used for solving the problems that the traffic thermal sensing imaging system cannot be applied to a left-turn lane by way and cannot assist in dredging traffic in the prior art, so that the timeliness of traffic thermal sensing imaging is reduced.
In order to achieve the above object, the present invention provides a traffic thermal imaging system based on multivariate information, which is applied to a road-borrowing left-hand communication hub, comprising:
the temperature monitoring module is arranged at the transportation junction and used for monitoring the temperature of each area of the transportation junction of the vehicle and generating a temperature monitoring image according to the temperature of each area;
the traffic imaging module is connected with the temperature monitoring module and is used for shooting the corresponding area of the traffic junction according to the temperature monitoring image so as to form a junction snapshot image;
the image analysis module is connected with the temperature monitoring module and the traffic imaging module and is used for determining a vehicle congestion position according to the temperature monitoring image and the hub snapshot image and determining a corresponding signal allocation strategy according to the vehicle congestion position;
the signal allocation module is connected with the image analysis module and used for allocating the channel borrowing signal lamp according to the signal allocation strategy;
the traffic junction is an urban road junction, the temperature monitoring image is a temperature image in the range of the traffic junction, and the signal allocation strategy is to determine the color of the road borrowing signal lamp according to the running direction of the vehicle;
the traffic hub comprises a lane-borrowing left-turning lane, and a lane-borrowing signal lamp is arranged in front of the lane-borrowing left-turning lane and used for allocating the lane-borrowing vehicles.
Further, the signal allocation strategy in the image analysis module is divided into a traffic signal allocation strategy and a congestion signal allocation strategy;
the traffic signal allocation strategy is that the channel borrowing signal lamp is transformed in a preset channel borrowing signal transformation mode;
the congestion signal allocation strategy is that the channel-borrowing signal lamp is not transformed.
Further, the temperature monitoring module divides the transportation junction into a central area and a road area, and for a single monitoring period, the temperature monitoring module divides each area into a plurality of temperature measuring base areas;
wherein the temperature measurement basic area of the central area is a plurality of polygons with the same area;
the area of the thermometric base region of the road region is inversely proportional to the distance from the central region.
Further, the temperature monitoring module includes:
the road temperature measuring units are arranged at all roads converging into the traffic junction and are used for collecting the temperature of the road area;
and the central temperature measuring unit is arranged in the central area and used for collecting the temperature of the central area.
Further, the traffic imaging module determines a high-temperature point according to the temperature monitoring image, and shoots the high-temperature point to form the hub snapshot image;
wherein Gao Wendian is the temperature measurement base region in the temperature monitoring image above a temperature threshold;
wherein, for each road temperature measuring unit, the corresponding temperature threshold value of the road area is in direct proportion to the average temperature of the road area;
for the central temperature measuring unit, the corresponding temperature threshold value of the central area is in direct proportion to the average temperature of the central area.
Further, the image analysis module analyzes the pivot snapshot according to the position of the high temperature point, wherein,
if the high-temperature point is in the central area, the image analysis module judges that the central area is congested and judges according to the hub snapshot image;
and if the high-temperature point is in a single road area, the image analysis module judges that the road area is congested and judges that the road area enters the congestion signal allocation strategy.
Further, the image analysis module judges the signal allocation strategy of each road area according to the vehicle congestion position of the central area,
if the image analysis module judges that the left-turning lane of the single road area in the central area is not in a congestion state, the image analysis module judges that the signal allocation strategy of the road area is the traffic signal allocation strategy;
and if the image analysis module judges that the left-turn lane of the single road area in the central area is in a congestion state, the image analysis module judges that the signal allocation strategy of the road area is the congestion signal allocation strategy.
Further, a congestion state judging mode is arranged in the image analyzing module, if the high-temperature point appears in the central area, the image analyzing module judges according to the vehicle position of the central area,
if the vehicle spacing in the single driving direction of the central area is not greater than a preset spacing threshold, the image analysis module judges that the direction enters the congestion state;
if the vehicle spacing in the single driving direction of the central area is larger than a preset spacing threshold value, the image analysis module judges that the direction does not enter the congestion state;
wherein the preset distance threshold is related to road speed limit.
Further, a signal damage strategy is further provided in the signal allocation module, and if the image analysis module does not send the traffic signal allocation strategy and/or the congestion signal allocation strategy to the signal allocation module, the signal allocation module enters the congestion signal allocation strategy.
Further, the signal allocation module is provided with the preset channel borrowing signal conversion mode, which counts time when the left-turning signal lamp of the transportation junction is ended, converts the channel borrowing signal lamp into a traffic state when a preset interval duration is reached, and converts the channel borrowing signal lamp into a traffic forbidden state when the preset channel borrowing duration is reached;
and the signal allocation module maintains the passage borrowing signal lamp in the traffic-forbidden state when entering the congestion signal allocation strategy.
Compared with the prior art, the traffic junction temperature control system has the beneficial effects that the signal lamps are allocated according to the temperature of the traffic junction by means of arranging the temperature monitoring module, the traffic imaging module, the image analysis module and the signal allocation module, so that the fluffing capacity of the traffic junction is effectively improved, and meanwhile, the timeliness of traffic thermal sensing camera shooting is effectively improved.
Further, through the mode of timely changing the borrowing signal lamp, the problem of traffic junction blockage caused by left turn is prevented, and timeliness of traffic heat sensing camera shooting is further improved while the anti-risk capacity of the traffic junction is effectively improved.
Further, through the mode of cutting apart the transportation junction, the time efficiency of traffic heat sense camera shooting is further improved while the accuracy of the blocking position of the transportation junction is effectively improved.
Further, by judging the traffic situation of a single driving route, the accuracy of judging the congestion position of the transportation junction is effectively improved, and meanwhile, the timeliness of traffic heat sensing shooting is further improved.
Further, by judging the distance between vehicles, the congested path is determined, so that the reliability of vehicle driving judgment is effectively improved, and meanwhile, the timeliness of traffic heat sensing shooting is further improved.
Further, through the mode of setting up signal damage tactics, fuse the system when traffic junction signal lamp damages, when effectively having reduced the anti risk ability of traffic junction, further promoted the timeliness that traffic heat felt was made a video recording.
Drawings
FIG. 1 is a schematic connection diagram of a traffic thermal imaging system based on multivariate information;
fig. 2 is a schematic diagram illustrating a traffic hub according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will become more apparent, the invention will be further described with reference to the following examples; it should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that, in the description of the present invention, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art according to the specific circumstances.
Referring to fig. 1, which is a schematic connection diagram of a traffic thermal imaging system based on multiple information, the traffic thermal imaging system based on multiple information is applied to a road-borrowing left-hand communication hub, and includes:
the temperature monitoring module is arranged at the transportation junction and used for monitoring the temperature of each area of the transportation junction of the vehicle and generating a temperature monitoring image according to the temperature of each area;
the traffic imaging module is connected with the temperature monitoring module and is used for shooting the corresponding area of the traffic junction according to the temperature monitoring image so as to form a junction snapshot image;
the image analysis module is connected with the temperature monitoring module and the traffic imaging module, and is used for determining a vehicle congestion position according to the temperature monitoring image and the hub snapshot image and determining a corresponding signal allocation strategy according to the vehicle congestion position;
the signal allocation module is connected with the image analysis module and used for allocating the borrowing signal lamp according to a signal allocation strategy;
the traffic junction is an urban road junction, the temperature monitoring image is a temperature image in the range of the traffic junction, and the signal allocation strategy is to determine the color of the road borrowing signal lamp according to the running direction of the vehicle;
the traffic hub comprises a lane-borrowing left-turning lane, and a lane-borrowing signal lamp is arranged in front of the lane-borrowing left-turning lane and used for allocating the lane-borrowing vehicles.
Compared with the prior art, the traffic junction temperature control system has the beneficial effects that the signal lamps are allocated according to the temperature of the traffic junction by means of arranging the temperature monitoring module, the traffic imaging module, the image analysis module and the signal allocation module, so that the fluffing capacity of the traffic junction is effectively improved, and meanwhile, the timeliness of traffic thermal sensing camera shooting is effectively improved.
Specifically, the signal allocation strategy in the image analysis module is divided into a traffic signal allocation strategy and a congestion signal allocation strategy;
the traffic signal allocation strategy is to change the channel borrowing signal lamp in a preset channel borrowing signal conversion mode;
the congestion signal allocation strategy is that the channel signal lamp is not transformed.
The traffic junction blocking problem caused by left turn is prevented by timely changing the road borrowing signal lamp, and timeliness of traffic heat sensing camera shooting is further improved while the anti-risk capability of the traffic junction is effectively improved.
Referring to fig. 2, which is a schematic diagram illustrating the division of a transportation junction according to an embodiment of the present invention, a temperature monitoring module divides the transportation junction into a central area and a road area, and for a single monitoring period, the temperature monitoring module divides each area into a plurality of temperature measurement basic areas;
wherein, the temperature measurement basic area of the central area is a plurality of polygons with the same area;
the area of the temperature measurement base area of the road area is inversely proportional to the distance from the central area.
It will be appreciated that for a single region, each thermometry base region can completely cover that region, and that each thermometry base region does not overlap.
It will be appreciated that there may be more than two roads intersecting in the junction, in this embodiment only 4 roads intersecting are shown, in practice it may be any value not greater than 6 roads and not less than 3 roads.
Specifically, the temperature monitoring module includes:
the road temperature measuring units are arranged at all roads which enter the traffic junction and are used for collecting the temperature of a road area;
and the central temperature measuring unit is arranged in the central area and used for collecting the temperature of the central area.
Specifically, the traffic imaging module determines a high-temperature point according to the temperature monitoring image, and shoots the high-temperature point to form a hub snapshot image;
the high-temperature point is a temperature measurement basic area higher than a temperature threshold in the temperature monitoring image;
wherein, for each road temperature measuring unit, the temperature threshold value of the corresponding road area is in direct proportion to the average temperature of the road area;
for the central temperature measuring unit, the temperature threshold value of the corresponding central area is proportional to the average temperature of the central area.
By means of the method for dividing the traffic junction, the accuracy of the blocking position of the traffic junction is effectively improved, and meanwhile timeliness of traffic thermal sensing camera shooting is further improved.
In the implementation, the high temperature point can be set to 150%, 200% or any other value of the average temperature of the area, and the high temperature point is reasonable;
it will be appreciated that taking the example of a central region, when the vehicle is stopped in the central region, it generates heat at least 1.5 times higher than the average temperature of the central region.
Specifically, the image analysis module analyzes the pivot snapshot based on the location of the high temperature point, wherein,
if the high-temperature point is in the central area, the image analysis module judges that the central area is congested and judges according to the hub snapshot image;
if the high-temperature point is in a single road area, the image analysis module judges that the road area is congested and judges that the road area enters a congestion signal allocation strategy.
With continued reference to fig. 2, taking the division manner in the figure as an example, the central area is divided into 4 temperature measurement basic areas, which correspond to the left-turn lanes of the single lane in each road area, and when any one of the temperature measurement basic areas in the central area is congested, the image analysis module determines that the corresponding lane of the left-turn lane enters the congestion signal allocation strategy.
Specifically, the image analysis module judges the signal allocation strategy of each road area according to the vehicle congestion position of the central area,
if the image analysis module judges that the left-turn lane of the single road area in the central area is not in a congestion state, the image analysis module judges that the signal allocation strategy of the road area is a traffic signal allocation strategy;
if the image analysis module judges that the left-turn lane of the single road area in the central area is in a congestion state, the image analysis module judges that the signal allocation strategy of the road area is a congestion signal allocation strategy.
By judging the traffic situation of a single driving route, the accuracy of judging the traffic junction congestion position is effectively improved, and meanwhile, the timeliness of traffic thermal sensing shooting is further improved.
Specifically, a congestion state judging mode is arranged in the image analysis module, if a high-temperature point appears in the central area, the image analysis module judges according to the vehicle position of the central area,
if the vehicle distance in the single driving direction of the central area is not greater than a preset distance threshold value, the image analysis module judges that the direction enters a congestion state;
if the vehicle spacing in the single driving direction of the central area is larger than a preset spacing threshold value, the image analysis module judges that the direction does not enter a congestion state;
wherein the preset distance threshold is related to road speed limit.
In practice, the preset distance is related to the urban speed limit, 5m for a road segment with a speed limit of 30km/h, 6m for a road segment with a speed limit of 45km/h, and 3m for a road segment with a speed limit of 15 km/h.
The preset distance is set by the fact that the maximum threshold value and the minimum threshold value exist in starting of the vehicle, and specific numerical values can be determined according to tests when the vehicle is set, so that the vehicle is reasonable.
By judging the vehicle spacing, the congestion path is determined, so that the reliability of vehicle driving judgment is effectively improved, and the timeliness of traffic thermal sensing shooting is further improved.
Specifically, the signal allocation module is also provided with a signal damage strategy, and if the image analysis module does not send a traffic signal allocation strategy and/or a congestion signal allocation strategy to the signal allocation module, the signal allocation module enters the congestion signal allocation strategy.
By setting the signal damage strategy, the system is fused when the traffic junction signal lamp is damaged, so that the risk resistance of the traffic junction is effectively reduced, and the timeliness of traffic heat sensing and shooting is further improved.
Specifically, a preset channel-borrowing signal conversion mode is arranged in the signal allocation module, the channel-borrowing signal conversion mode is used for timing when a left-turning signal lamp of the traffic junction is ended, the channel-borrowing signal lamp is converted into a traffic state when a preset interval duration is reached, and the channel-borrowing signal lamp is converted into a traffic-forbidden state when the preset channel-borrowing duration is reached;
when entering a congestion signal allocation strategy, the signal allocation module maintains the traffic-borrowing signal lamp in an idle state.
Thus far, the technical solution of the present invention has been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Equivalent modifications and substitutions for related technical features may be made by those skilled in the art without departing from the principles of the present invention, and such modifications and substitutions will be within the scope of the present invention.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the invention; various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a traffic heat sense camera system based on many information which characterized in that, it is applied to and borrows a way left hand to pass through the pivot, includes:
the temperature monitoring module is arranged at the transportation junction and used for monitoring the temperature of each area of the transportation junction of the vehicle and generating a temperature monitoring image according to the temperature of each area;
the traffic imaging module is connected with the temperature monitoring module and is used for shooting the corresponding area of the traffic junction according to the temperature monitoring image so as to form a junction snapshot image;
the image analysis module is connected with the temperature monitoring module and the traffic imaging module and is used for determining a vehicle congestion position according to the temperature monitoring image and the hub snapshot image and determining a corresponding signal allocation strategy according to the vehicle congestion position;
the signal allocation module is connected with the image analysis module and used for allocating the channel borrowing signal lamp according to the signal allocation strategy;
the traffic junction is an urban road junction, the temperature monitoring image is a temperature image in the range of the traffic junction, and the signal allocation strategy is to determine the color of the road borrowing signal lamp according to the running direction of the vehicle;
the traffic hub comprises a lane-borrowing left-turning lane, and a lane-borrowing signal lamp is arranged in front of the lane-borrowing left-turning lane and used for allocating the lane-borrowing vehicles;
when any temperature measurement basic area in the central area is congested, the image analysis module judges that the corresponding lane which is turned left by the road enters a congestion signal allocation strategy;
the signal allocation strategy in the image analysis module is divided into a traffic signal allocation strategy and a congestion signal allocation strategy;
the traffic signal allocation strategy is that the channel borrowing signal lamp is transformed in a preset channel borrowing signal transformation mode;
the congestion signal allocation strategy is that the channel borrowing signal lamp is not transformed;
the temperature monitoring module divides the transportation junction into a central area and a road area, and for a single monitoring period, the temperature monitoring module divides each area into a plurality of temperature measuring basic areas;
wherein the temperature measurement basic area of the central area is a plurality of polygons with the same area;
the area of the thermometric base region of the road region is inversely proportional to the distance from the central region.
2. The multiple information based traffic heat sensing camera system of claim 1, wherein the temperature monitoring module comprises:
the road temperature measuring units are arranged at all roads converging into the traffic junction and are used for collecting the temperature of the road area;
and the central temperature measuring unit is arranged in the central area and used for collecting the temperature of the central area.
3. The traffic heat sensing camera system based on multi-element information according to claim 2, wherein the traffic imaging module determines a high temperature point according to the temperature monitoring image and shoots the high temperature point to form the junction snapshot image;
wherein Gao Wendian is the temperature measurement base region in the temperature monitoring image above a temperature threshold;
wherein, for each road temperature measuring unit, the corresponding temperature threshold value of the road area is in direct proportion to the average temperature of the road area;
for the central temperature measuring unit, the corresponding temperature threshold value of the central area is in direct proportion to the average temperature of the central area.
4. The traffic heat sensing camera system based on multivariate information according to claim 3, wherein the image analysis module performs an analysis based on the position of the high temperature point when analyzing the junction snapshot, wherein,
if the high-temperature point is in the central area, the image analysis module judges that the central area is congested and judges according to the hub snapshot image;
and if the high-temperature point is in a single road area, the image analysis module judges that the road area is congested and judges that the road area enters the congestion signal allocation strategy.
5. The traffic heat sensing camera system based on multi-information according to claim 4, wherein the image analysis module determines a signal allocation strategy for each road area according to the vehicle congestion position of the central area,
if the image analysis module judges that the left-turning lane of the single road area in the central area is not in a congestion state, the image analysis module judges that the signal allocation strategy of the road area is the traffic signal allocation strategy;
and if the image analysis module judges that the left-turn lane of the single road area in the central area is in a congestion state, the image analysis module judges that the signal allocation strategy of the road area is the congestion signal allocation strategy.
6. The traffic heat sensing camera system based on multi-information according to claim 5, wherein the image analysis module is provided with a congestion state judgment mode, if the high temperature point occurs in the central area, the image analysis module judges according to the vehicle position in the central area,
if the vehicle spacing in the single driving direction of the central area is not greater than a preset spacing threshold, the image analysis module judges that the direction enters the congestion state;
if the vehicle spacing in the single driving direction of the central area is larger than a preset spacing threshold value, the image analysis module judges that the direction does not enter the congestion state;
wherein the preset distance threshold is related to road speed limit.
7. The traffic heat sensing camera system based on multi-element information according to claim 6, wherein the signal allocation module is further provided with a signal damage strategy, and if the image analysis module does not send the traffic signal allocation strategy and/or the congestion signal allocation strategy to the signal allocation module, the signal allocation module enters the congestion signal allocation strategy.
8. The traffic heat sensing camera system based on multiple information according to claim 7, wherein the signal allocation module is provided with a preset channel borrowing signal conversion mode, which counts time when a left turn signal lamp of the traffic junction is finished, converts the channel borrowing signal lamp into a traffic state when a preset interval duration is reached, and converts the channel borrowing signal lamp into a traffic prohibition state when the preset channel borrowing duration is reached;
and the signal allocation module maintains the passage borrowing signal lamp in the traffic-forbidden state when entering the congestion signal allocation strategy.
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