Axle recognition device
By designing a wheel axle recognition device including a host, a chassis scanning device and a license plate recognition unit, the problem of not being able to accurately identify the number of truck drive axles and license plate information in the prior art is solved, and the accurate identification and binding of vehicle information and drive axle information is realized, and the recognition rate and matching accuracy are improved.
Patent Information
- Application Number
- CN202420669738.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-04-02
AI Technical Summary
Existing axle detection equipment cannot accurately identify the number of drive axles and license plate information of the truck, resulting in errors in matching load limit standards, resulting in chaos in overweight control queues and illegal driving into the highway.
A wheel axle identification device including a host, a chassis scanning device and a license plate recognition unit is designed. The host is installed on the side of the lane of the toll station, and the chassis scanning device is installed in the middle of the front lane of the weighting. Through the license plate recognition unit, a laser recognition unit and a chassis scanning controller, the precise identification and binding of vehicle license plate and wheel axle information is achieved.
Through the use of this device, vehicle information and drive shaft information can be accurately identified, which improves the recognition rate and matching accuracy, and reduces the phenomenon of overweight control queues and illegal driving into the expressway.
Smart Images
Figure CN222580618U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to axle detection equipment, in particular to an axle identification device which has accurate detection and is suitable for detecting trucks at toll stations. Background Art
[0002] After the provincial border toll stations were abolished, trucks are charged uniformly according to their type or axle, and a unified national standard for illegal overloading is clearly stipulated. Due to the different number of drive axles, the load limits for 6-axle trucks are 46 tons and 49 tons respectively. Currently, general weighing equipment can only detect the axle type but not the number of drive axles, resulting in overloaded trucks with a load limit of 46 tons illegally entering the highway because they are mistakenly believed to have a load limit of 49 tons.
[0003] At present, most axle detection equipment can identify the number of drive axles by scanning. When used for overload control at the entrance of the highway, the drive axle is always not identified, the license plate is not successfully identified, and the weight data is not detected. As a result, the license plate, axle data, and weight data cannot be accurately matched, resulting in chaos in the overload control queue. Some trucks with a load limit of 49 tons are not overloaded, but cannot enter the highway normally because the axle data is matched with 46 tons. Some trucks with a load limit of 46 tons are matched with 49 tons axle data and illegally enter the highway.
[0004] There are at least three problems with the existing technology: first, the identified drive shaft type data and the license plate are not accurately bound; second, the capture unit is severely affected by the external environment and obstructions, resulting in a low recognition rate; third, the existing wheel axle detection data does not have a vehicle separation function, and the drive shaft detection data will be erroneous when following the vehicle too closely. Summary of the invention
[0005] The utility model aims to solve the problems existing in current wheel axle detection equipment and provides a wheel axle identification device which has accurate detection and is suitable for detecting trucks at toll stations.
[0006] The wheel axle recognition device of the utility model is characterized in that the device comprises a host, a chassis scanning device and a license plate recognition unit, the host is installed on the ship island on one side of the toll station lane, the chassis scanning device is installed in the middle of the front lane of the weighing scale, and the chassis scanning device is connected to the host through a data line; the host comprises a column, and a license plate recognition unit, a laser recognition unit, a control unit and a chassis scanning controller are arranged on the column, and the license plate recognition unit, the laser recognition unit and the chassis scanning controller are all connected to the control unit through a data line; wherein:
[0007] The license plate recognition unit includes a front camera, a rear camera, a tracking camera, a splicing camera and several light strips. The front camera is located on the upper left front side of the pillar, and the rear camera is located on the upper right side of the pillar; the tracking camera is located on the upper front side of the pillar, and the splicing camera is set below the tracking camera; light strips are set on the left, right and front of the pillar; the laser axle recognition unit is located in the middle of the front of the pillar.
[0008] The light strip is set to be always on to enhance the fill light of the host.
[0009] The host is also provided with a communication module and a power supply module. The communication module uses a serial port and an Ethernet port for communication; the power supply module realizes an input of AC220V and an output of DC24V.
[0010] The front camera and the rear camera are both provided with an integrated rainproof deflector to prevent rain from blurring the lens surface.
[0011] The front camera is used to identify the license plate, the rear camera is used to capture the rear of the vehicle, the tracking camera is responsible for real-time positioning of the vehicle, controlling the triggering of the front and rear captures of the vehicle, and the stitching camera is responsible for stitching the panoramic picture of the vehicle body.
[0012] The wheel axle identification device of the utility model has a simple structure, scientific design and is easy to use. It can accurately locate the vehicle and improve the license plate recognition performance through the license plate recognition unit with an integrated rainproof deflector. It can accurately identify the vehicle information and drive shaft information through the laser detection unit with chassis recognition. It can accurately judge the drive shaft position and vehicle division through the chassis recognition unit, thereby improving the anti-interference ability. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the mainframe structure of the utility model.
[0014] Among them, there are a host 1, a license plate recognition unit 2, a laser recognition unit 3, a front camera 4, a rear camera 5, a tracking camera 6, a splicing camera 7, and a rainproof deflector 8. DETAILED DESCRIPTION
[0015] Embodiment 1: A wheel axle recognition device, characterized in that the device comprises a host, a chassis scanning device and a license plate recognition unit, the host is installed on the ship island on one side of the toll station lane, the chassis scanning device is installed in the middle of the front lane of the weighing scale, and the chassis scanning device is connected to the host through a data line; the host comprises a column, and a license plate recognition unit, a laser recognition unit, a control unit and a chassis scanning controller are arranged on the column, and the license plate recognition unit, the laser recognition unit and the chassis scanning controller are all connected to the control unit through a data line; wherein:
[0016] The license plate recognition unit includes a front camera, a rear camera, a tracking camera, a splicing camera and four light strips. The front camera and rear camera are FS0605D, and the tracking camera and splicing camera are Transpeed TPR200K. The front camera is located on the upper left front side of the column, and the rear camera is located on the upper right side of the column; the tracking camera is located on the upper front side of the column, and the splicing camera is set below the tracking camera; light strips are set on the left, right and front of the column; the laser wheel axle recognition unit uses a BEA-LZR921 sensor, located in the middle of the front of the column, with a size of 124mm (L) x90mm (H) x50mm (D), and a scanning angle of 123°. Two light strips are located at the upper and lower positions of the laser scanning unit on the front of the column, respectively, to enhance the fill light on the front of the host, and the other two light strips are located in the middle of the front capture surface and the rear capture surface to enhance the ambient fill light. The host is also equipped with a communication module and a power module. The communication module uses serial port and network port communication; the power module realizes input AC220V and output DC24V. The control unit is a single-chip microcomputer, which is used to exchange, transmit and control signals.
[0017] When a vehicle enters the detection area, based on video tracking and video detection, the license plate recognition unit is triggered to capture the vehicle's license plate information, the lidar scans the vehicle's wheel axle information, and the chassis scanning device starts to scan the vehicle's chassis information. The wheel axle position detected by the capture and lidar detection unit is used to output the drive shaft position and number. After the vehicle leaves, the host processing unit analyzes the scanned data and outputs the vehicle model or axle data bound to the license plate. The "Yunjiao Ke Vehicle Axle Identification Equipment Management System" is installed in the host, and the software registration number is "2024SR0408900". When used with this device, it can accurately identify vehicle information and drive shaft information.
Claims
1. A wheel axle identification device, characterized in that The device includes a host, a chassis scanning device and a license plate recognition unit. The host is installed on the ship island on one side of the toll station lane, and the chassis scanning device is installed in the middle of the front lane of the weighing scale. The chassis scanning device is connected to the host through a data line; the host includes a column, and a license plate recognition unit, a laser recognition unit, a control unit and a chassis scanning controller are arranged on the column. The license plate recognition unit, the laser recognition unit and the chassis scanning controller are all connected to the control unit through a data line; wherein: The license plate recognition unit includes a front camera, a rear camera, a tracking camera, a splicing camera and several light strips. The front camera is located on the upper left front side of the pillar, and the rear camera is located on the upper right side of the pillar; the tracking camera is located on the upper front side of the pillar, and the splicing camera is set below the tracking camera; light strips are set on the left, right and front of the pillar; the laser axle recognition unit is located in the middle of the front of the pillar.
2. The wheel axle identification device according to claim 1, characterized in that The light strip is set to be always on.
3. The wheel axle identification device according to claim 1, characterized in that The host is also provided with a communication module and a power supply module. The communication module uses a serial port and an Ethernet port for communication; the power supply module realizes an input of AC220V and an output of DC24V.
4. The wheel axle identification device according to claim 1, characterized in that The front camera and the rear camera are both provided with an integrated rainproof deflector.