CN210667171U - Road vehicle snapshot recognition system based on laser detection - Google Patents
Road vehicle snapshot recognition system based on laser detection Download PDFInfo
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- CN210667171U CN210667171U CN201921268428.9U CN201921268428U CN210667171U CN 210667171 U CN210667171 U CN 210667171U CN 201921268428 U CN201921268428 U CN 201921268428U CN 210667171 U CN210667171 U CN 210667171U
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Abstract
The utility model provides a road vehicle snapshot identification system based on laser detection relates to intelligent transportation technical field. The system comprises a laser sensor, a meteorological detector, a snapshot camera and a data acquisition controller. The laser sensor is used for detecting the contour information of the vehicle. The weather detector is used for acquiring environmental weather data. The snapshot camera is used for snapshotting a vehicle to form a snapshot picture and a license plate recognition result and comprises a laser trigger working mode, a video trigger working mode and a laser and video trigger working mode. And the data acquisition controller sends a snapshot signal to the snapshot camera according to the profile information and sends a working mode switching signal to the snapshot camera according to the environmental weather data. The utility model discloses select according to the weather condition is nimble to trigger the candid photograph mode, and then promoted the catching and the candid photograph discernment ability of vehicle under the free flow field scene.
Description
Technical Field
The utility model relates to an intelligent transportation technical field specifically is a based on laser detection road vehicle identification system that takes a candid photograph.
Background
At present, a commonly used snapshot recognition system for a highway generally comprises a radar speed measurement module and a video recognition module, wherein the radar speed measurement module is used for measuring the running speed of a vehicle, the video recognition module is used for recognizing the license plate of an overspeed vehicle, the radar speed measurement module is limited by the running state (such as speed, vehicle following, parallel running and vehicle length) of the vehicle, and certainly, in the application field with high requirements on vehicle capture and license plate recognition, the video recognition equipped with the radar speed measurement module does not meet the requirements on vehicle capture and recognition of the whole section any more.
A laser sensor-based snapshot recognition system is also adopted on the highway, but the laser sensor is limited by environmental factors (fog, rain and snow), so that the function of the laser speed measurement module is reduced to different degrees along with the severity of weather, and the vehicle capturing and speed measuring capacity is reduced.
In addition, in the snapshot recognition system, each lane is provided with a high-definition recognition camera, and each lane or each section is provided with a radar speed measurement module or a laser sensor. When the radar speed measuring module or the laser sensor detects that the vehicle speed exceeds a threshold value, a camera of the corresponding lane is informed to capture, identify and evidence.
It can be seen that, in the related art, only after the speed exceeds a certain threshold value, single trigger snapshot can be performed, but under the condition that the vehicles run in parallel or follow the vehicle or at a low speed, the false capture rate and the missing capture rate of the vehicle detected by the radar speed measurement module are high, so that the camera cannot be accurately guided to perform snapshot of the vehicle, in addition, the radar test module cannot provide an accurate vehicle snapshot position, only simply inform the corresponding lane camera to perform snapshot, so that the recognition efficiency and the accuracy of the snapshot of the picture are affected, and particularly under the condition that the vehicle runs across roads, the influence degree is larger.
The snapshot recognition system based on the laser sensor generally detects overspeed by using two laser scanning lines or detects lane change of a vehicle by arranging the laser scanning lines along a lane line only when detecting that the vehicle breaks rules and regulations, informs a corresponding camera to snapshot, does not provide detailed snapshot information, and causes the recognition efficiency and accuracy of snapshot of pictures to be influenced.
Aiming at the problem that the capture rate and the capture rate of the vehicle cannot be reduced by flexibly selecting the capture mode according to the weather condition in the related technology, an effective technical scheme is not provided yet.
SUMMERY OF THE UTILITY MODEL
Based on the problem, the utility model provides a based on laser detects road vehicle identification system that takes a candid photograph to at least, solve in the correlation technique unable according to the nimble selection snapshot mode of weather condition and then reduced the capture rate of vehicle and the problem of snapshot rate.
The road vehicle snapshot identification system based on laser detection comprises: the system comprises a laser sensor, a meteorological detector, a snapshot camera and a data acquisition controller;
the laser sensor is connected with the data acquisition controller and is used for detecting the profile information of the vehicle passing through the laser detection section and outputting the profile information of the vehicle;
the laser detection section can be one or more lanes;
the weather detector is connected with the data acquisition controller and used for detecting and acquiring environmental weather data and outputting the weather data;
the data acquisition controller is connected with the snapshot camera and used for receiving the vehicle outline information output by the laser sensor, outputting laser triggering snapshot information to the snapshot camera, outputting the weather data output by the weather detector and outputting a working mode switching signal to the snapshot camera;
the snapshot camera is used for receiving the laser trigger snapshot information to perform snapshot identification, receiving the working mode switching signal and switching the working mode of the snapshot camera;
the working mode of the snapshot camera comprises any one of a laser triggering snapshot working mode, a video triggering snapshot working mode and a laser and video triggering mixed snapshot working mode;
the laser trigger snapshot working mode of the snapshot camera is used for receiving laser trigger snapshot information output by the data acquisition controller, carrying out snapshot recognition on the vehicle and outputting a snapshot picture and a license plate recognition result;
the video triggering snapshot working mode of the snapshot camera is used for tracking and identifying the vehicles in the camera identification area through the video, and the snapshot picture and the license plate identification result are output after the vehicles are detected to reach the video triggering snapshot line set by the camera;
the laser and video triggering mixed snapshot working mode of the snapshot camera is used for receiving laser triggering snapshot information output by the data acquisition controller, carrying out snapshot recognition on vehicles, outputting snapshot pictures and license plate recognition results, tracking and recognizing the vehicles in a camera recognition area by the camera video, and outputting the snapshot pictures and the license plate recognition results after detecting that the vehicles reach a video triggering snapshot line set by the camera.
The identification area of the snapshot camera may be one or more lanes.
The utility model has the advantages that: the arrival of the laser is utilized to detect the vehicle, accurate triggering snapshot information is provided for the snapshot camera, the weather detector is adopted to acquire environmental weather data in the target area, the working mode of the snapshot camera is switched according to the weather data, the error capture and missing capture of the laser under the severe weather condition are compensated, the error capture and missing capture of the video under the normal weather condition are compensated, and the vehicle capture and snapshot recognition capability under the free flow field scene is improved.
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Fig. 1 is the embodiment of the utility model provides a 1 a structural schematic diagram based on laser detects road vehicle and catches snapshot identification system.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example (b):
as shown in FIG. 1, the system is a schematic structural diagram of a laser detection-based road vehicle snapshot recognition system of the present embodiment, and the system includes laser sensors (110,120), snapshot cameras (210,220), a data acquisition controller 300, and a weather detector (400).
As shown in fig. 1, the laser sensor is connected to the data acquisition controller, and is configured to detect profile information of a vehicle passing through a laser detection cross section, output the profile information of the vehicle, and directly connect to the data acquisition controller 300.
As shown in fig. 1, the weather detector 400 is connected to the data acquisition controller 300, and is configured to detect and acquire environmental weather data and output the weather data.
As shown in fig. 1, the data acquisition controller 300, connected to the snapshot cameras (210,220), is configured to receive the vehicle profile information output by the laser sensors (110,120), output laser trigger snapshot information, and output an operation mode switching signal to the snapshot cameras (210,220) according to the weather data output by the weather detector 400;
as shown in fig. 1, the snapshot cameras (210,220) are configured to receive laser trigger snapshot information output by the data acquisition controller 300 for snapshot recognition, and receive a working mode switching signal output by the data acquisition controller 300 for switching the working modes of the snapshot cameras.
It should be noted that the working mode of the snapshot camera in the embodiment of the present invention includes a laser triggered snapshot working mode, which can be understood as a working mode adopted under a weather condition that the visibility is good and the detection performance of the laser sensor is not affected completely; the video triggers the snapshot working mode, which can be understood as the working mode adopted under the weather condition that the visibility is poor and the detection performance of the laser detector is greatly influenced; the laser and video trigger mixed snapshot working mode can be understood as a working mode adopted under the weather condition that the visibility is general and the influence on the detection performance of the laser detector is not large.
The present invention has been explained by using specific embodiments, and the explanation of the above embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.
Claims (4)
1. A laser detection based road vehicle snapshot recognition system, the system comprising: the system comprises a laser sensor, a meteorological detector, a snapshot camera and a data acquisition controller;
the laser sensor is connected with the data acquisition controller and is used for detecting the profile information of the vehicle passing through the laser detection section and outputting the profile information of the vehicle;
the weather detector is connected with the data acquisition controller and used for detecting and acquiring environmental weather data and outputting the weather data;
the data acquisition controller is connected with the snapshot camera and is used for receiving the vehicle outline information output by the laser sensor, outputting laser triggering snapshot information to the snapshot camera, receiving the weather data output by the weather detector and outputting a working mode switching signal to the snapshot camera;
the snapshot camera is used for receiving the laser triggering snapshot information to perform snapshot identification, receiving the working mode switching signal and switching the working mode of the snapshot camera.
2. The vehicle snapshot recognition system of claim 1, wherein the working modes of the snapshot camera include any one of a laser triggered snapshot working mode, a video triggered snapshot working mode, and a laser and video triggered hybrid snapshot working mode;
the laser trigger snapshot working mode of the snapshot camera is used for receiving laser trigger snapshot information output by the data acquisition controller, carrying out snapshot recognition on the vehicle and outputting a snapshot picture and a license plate recognition result;
the video triggering snapshot working mode of the snapshot camera is used for tracking and identifying the vehicles in the camera identification area through the video, and the snapshot picture and the license plate identification result are output after the vehicles are detected to reach the video triggering snapshot line set by the camera;
the laser and video triggering mixed snapshot working mode of the snapshot camera is used for receiving laser triggering snapshot information output by the data acquisition controller, carrying out snapshot recognition on a vehicle, outputting a snapshot picture and a license plate recognition result, tracking and recognizing the vehicle by the camera video, and outputting the snapshot picture and the license plate recognition result after detecting that the vehicle reaches a video triggering snapshot line set by the camera.
3. The vehicle snapshot recognition system of claim 1, wherein a detection profile of the laser sensor covers one or more lanes.
4. The vehicle snap recognition system of claim 1, wherein a camera recognition area of the snap camera covers one or more lanes.
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| CN201921268428.9U CN210667171U (en) | 2019-08-06 | 2019-08-06 | Road vehicle snapshot recognition system based on laser detection |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112712074A (en) * | 2021-03-29 | 2021-04-27 | 中智行科技有限公司 | Information acquisition method, device, equipment and storage medium |
| CN114721067A (en) * | 2021-01-05 | 2022-07-08 | 中国电子科技集团公司第五十四研究所 | Monitoring method, device, system, computer storage medium and electronic equipment |
| CN115440030A (en) * | 2022-08-08 | 2022-12-06 | 苏州天华信息科技股份有限公司 | Traffic video snapshot system capable of improving snapshot efficiency |
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2019
- 2019-08-06 CN CN201921268428.9U patent/CN210667171U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114721067A (en) * | 2021-01-05 | 2022-07-08 | 中国电子科技集团公司第五十四研究所 | Monitoring method, device, system, computer storage medium and electronic equipment |
| CN114721067B (en) * | 2021-01-05 | 2024-03-29 | 中国电子科技集团公司第五十四研究所 | Monitoring method, device, system, computer storage medium and electronic equipment |
| CN112712074A (en) * | 2021-03-29 | 2021-04-27 | 中智行科技有限公司 | Information acquisition method, device, equipment and storage medium |
| CN115440030A (en) * | 2022-08-08 | 2022-12-06 | 苏州天华信息科技股份有限公司 | Traffic video snapshot system capable of improving snapshot efficiency |
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