CN211555114U - Locomotive and tailstock snapshot recognition system based on laser detection - Google Patents
Locomotive and tailstock snapshot recognition system based on laser detection Download PDFInfo
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- CN211555114U CN211555114U CN201922389639.4U CN201922389639U CN211555114U CN 211555114 U CN211555114 U CN 211555114U CN 201922389639 U CN201922389639 U CN 201922389639U CN 211555114 U CN211555114 U CN 211555114U
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Abstract
The utility model provides a locomotive rear of a vehicle snapshot identification system based on laser detection relates to intelligent transportation technical field. The system comprises a laser sensor, a vehicle head snapshot camera, a vehicle tail snapshot camera and a data acquisition controller. The laser sensor is used for detecting the contour information of the vehicle. The vehicle head snapshot camera is used for capturing the vehicle head to form a vehicle head snapshot picture and a vehicle head license plate recognition result. The vehicle tail snapshot camera is used for snapshot of the vehicle tail to form a vehicle head snapshot picture and a vehicle head license plate recognition result. And the data acquisition controller sends a head arrival position information snapshot signal to the head snapshot camera according to the vehicle profile information and sends a tail departure position information snapshot signal to the tail snapshot camera according to the vehicle profile information. The utility model discloses according to the accurate detection of position and locomotive rear about the vehicle of laser, and then the locomotive rear of a vehicle snapshot accuracy uniformity and the recognition efficiency of vehicle have been promoted.
Description
Technical Field
The utility model relates to an intelligent transportation technical field specifically is a locomotive rear of a vehicle snapshot identification system based on laser detection.
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, a vehicle head snapshot mode or a vehicle tail snapshot mode is adopted, 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 can not meet the requirements on vehicle capture and recognition of the whole section.
In a highway application scene with snapshot requirements on a head and a tail of a vehicle, the arrival and the departure of the vehicle are generally recognized in a ground induction coil mode, but the detection of the vehicle by the ground induction coil is influenced by the type, the running speed and the running position of the vehicle, so that on one hand, a trigger signal cannot be timely given, the distribution of the front area and the rear area of the snapshot is large, on the other hand, multiple triggers are caused, the head snapshot picture and the tail snapshot picture cannot be paired, and when a third vehicle runs across roads, the coil is easy to miss the trigger; in addition, accurate snapshot position information cannot be provided in a coil triggering mode, so that the left and right snapshot areas are distributed greatly, and error identification is easy to occur during cross-road driving.
Aiming at the problem that the consistency of the tail snapshot and the head snapshot of the vehicle cannot be guaranteed 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 locomotive rear of a vehicle snapshot identification system based on laser detects to can't guarantee the rear of a vehicle snapshot and the uniformity of locomotive snapshot vehicle in solving the correlation technique at least, and then reduced the problem of the complete capture rate of vehicle and snapshot rate.
A locomotive rear of a vehicle snapshot identification system based on laser detection, include: the system comprises a laser sensor, a head snapshot camera, a tail snapshot camera and a data acquisition controller;
the laser sensor is connected with the data acquisition controller and is used for detecting the outline information of the vehicle passing through the laser detection section and outputting the outline information of the vehicle;
the laser detection section can be one or more lanes;
the data acquisition controller is connected with the head snapshot camera and the tail snapshot camera and is used for receiving the vehicle profile information, outputting a head arrival position information snapshot signal to the head snapshot camera and outputting a tail departure position information snapshot signal to the tail snapshot camera;
the locomotive snapshot camera is used for receiving a locomotive arrival position information snapshot signal, accurately locking an area to be identified of a locomotive according to the position information for snapshot identification, and outputting a locomotive snapshot picture and a locomotive license plate identification result;
the vehicle tail snapshot camera is used for receiving the vehicle tail leaving position information snapshot signal, accurately locking a region of the vehicle tail to be identified according to the position information for snapshot identification, and outputting a vehicle tail snapshot picture and a vehicle tail license plate identification result;
the vehicle head snapshot camera and the vehicle tail snapshot camera are arranged on different sections along the driving direction, and the vehicle firstly passes through the installation section of the vehicle tail snapshot camera and then passes through the installation section of the vehicle head snapshot camera;
the laser sensor is arranged on the same installation section of the head snapshot camera or the same installation section of the tail snapshot camera.
The utility model has the advantages that: the arrival and the departure of the vehicle are detected by utilizing the laser, accurate position information is provided for the corresponding snapshot camera, the consistency and the integrity of vehicle snapshot and capture are ensured, and the capturing and snapshot recognition capabilities of the complete vehicle under the free flow field scene are improved.
Drawings
Fig. 1 is the embodiment 1 of the utility model provides a locomotive rear of a vehicle snapshot identification system's schematic structure based on laser detects.
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):
fig. 1 is a schematic structural diagram of a system for capturing and identifying vehicle headlights and vehicle tails based on laser detection according to this embodiment, where the system includes laser sensors (110,120), vehicle headlights (210,220), and a data acquisition controller 400 of the vehicle tails capturing cameras (310, 320).
As shown in fig. 1, the laser sensors (110,120) are connected to the data acquisition controller 400, and are configured to detect contour information of a vehicle passing through a laser detection cross section, and output vehicle contour information, which is directly connected to the data acquisition controller 400.
As shown in fig. 1, the data acquisition controller 400 is connected to the front capture cameras (210,220) and configured to receive the vehicle contour information output by the laser sensors (110,120), output a front arrival position information capture signal to the front capture cameras (210,220), and output a rear departure position information capture signal to the rear capture cameras (310, 320);
as shown in fig. 1, the vehicle head snapshot cameras (210,220) are configured to receive a vehicle head arrival position information snapshot signal output by the data acquisition controller 400, accurately lock a region of a vehicle head to be identified according to the vehicle head arrival position information for snapshot identification, and output a vehicle head snapshot picture and a vehicle head license plate identification result;
as shown in fig. 1, the car tail snapshot cameras (310,320) are configured to receive car tail leaving position information snapshot signals output by the data acquisition controller 400, accurately lock areas to be recognized of car tails according to the car tail leaving position information for snapshot recognition, and output car tail snapshot pictures and car head license plate recognition results.
It should be noted that, the laser sensor in the embodiment of the present invention may be installed on the same installation section as the head snapshot camera or the same installation section as the tail snapshot camera.
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 locomotive tail snapshot recognition system based on laser detection, the system comprising: the system comprises a laser sensor, a head snapshot camera, a tail snapshot camera and a data acquisition controller;
the method is characterized in that:
the laser sensor is connected with the data acquisition controller and is used for detecting the outline information of the vehicle passing through the laser detection section and outputting the outline information of the vehicle;
the data acquisition controller is connected with the head snapshot camera and the tail snapshot camera and is used for receiving the vehicle profile information, outputting a head arrival position information snapshot signal to the head snapshot camera and outputting a tail departure position information snapshot signal to the tail snapshot camera;
the vehicle head snapshot camera is used for receiving the vehicle head arrival position information snapshot signal, accurately locking the area of the vehicle head to be identified according to the vehicle head arrival position information for snapshot identification, and outputting a vehicle head snapshot picture and a vehicle head license plate identification result;
the vehicle tail snapshot camera is used for receiving the vehicle tail leaving position information snapshot signal, accurately locking a region of the vehicle tail to be identified according to the vehicle tail leaving position information for snapshot identification, and outputting a vehicle tail snapshot picture and a vehicle tail license plate identification result.
2. The vehicle head and tail snapshot recognition system of claim 1, wherein the vehicle head snapshot camera and the vehicle tail snapshot camera are mounted on different cross sections along a driving direction, and a vehicle passes through a mounting cross section of the vehicle tail snapshot camera and then passes through a mounting cross section of the vehicle head snapshot camera.
3. The system for capturing and identifying the vehicle head and the vehicle tail according to claim 1, wherein the laser sensor is installed on the same installation section of the vehicle head capturing camera or the same installation section of the vehicle tail capturing camera.
4. The system for snapshotting and recognizing vehicle noses and vehicle tails according to claim 1, wherein a detection section of the laser sensor covers one or more lanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389639.4U CN211555114U (en) | 2019-12-26 | 2019-12-26 | Locomotive and tailstock snapshot recognition system based on laser detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922389639.4U CN211555114U (en) | 2019-12-26 | 2019-12-26 | Locomotive and tailstock snapshot recognition system based on laser detection |
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| Publication Number | Publication Date |
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| CN211555114U true CN211555114U (en) | 2020-09-22 |
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| CN201922389639.4U Active CN211555114U (en) | 2019-12-26 | 2019-12-26 | Locomotive and tailstock snapshot recognition system based on laser detection |
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