A vehicle model recognition device
By introducing a rain cover and LiDAR into the vehicle recognition device, combined with a camera and humidity sensor, the problems of equipment failure and poor positioning accuracy caused by rainwater intrusion were solved, achieving all-weather high-precision vehicle recognition.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU SIKA INFORMATION SYST CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-09
AI Technical Summary
Existing vehicle identification devices are prone to lens splashing and getting wet in heavy rain, which can cause equipment failure due to moisture intrusion. Furthermore, they lack a sealed structure, resulting in poor vehicle spatial positioning accuracy.
The system employs a recognition and perception unit that includes a first camera, a second camera, a third camera, and a lidar. Combined with a rain cover and lidar, it reduces rainwater intrusion through a rainproof lens and uses lidar to acquire distance, speed, and angle data in real time. In conjunction with a humidity sensor and a heating element to prevent fogging, it achieves all-weather vehicle identification.
It effectively prevents rainwater intrusion, improves the accuracy and precision of vehicle model recognition, and solves the problem of missed detection from a single perspective, especially in complex road conditions.
Smart Images
Figure CN224341937U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vehicle traffic monitoring equipment, and more specifically, to a vehicle model identification device. Background Technology
[0002] The vehicle type recognition integrated machine is used for overload control and toll collection at highway entrances. It can automatically identify vehicle type based on highway toll standards, and supports evidence collection of 3 photos and 5 seconds of passing video, providing complete vehicle type data for overload control and toll collection at entrances.
[0003] The closest identification device to existing technology, authorized announcement number: CN218830377U, discloses a rainproof plate structure for a vehicle model identification device. It discloses that a first high-definition camera is respectively provided on the left and right sides of the identification head, and a rainproof plate structure is detachably connected above the first high-definition camera for rain protection. The rainproof plate structure includes a rainproof arc plate and a bending plate. The rainproof arc plate includes a left circular arc slope, a middle circular arc slope, and a right circular arc slope. The left circular arc slope, the middle circular arc slope, and the right circular arc slope effectively protect the first high-definition camera from rain.
[0004] The device relies solely on the top curved baffle, which can only protect against vertical rain and cannot prevent lateral wind and rain penetration. Furthermore, it lacks a sealing structure, making the lens susceptible to splashing and water vapor intrusion during heavy rain, which can lead to equipment malfunction. Additionally, it lacks a distance / speed detection module, resulting in poor vehicle spatial positioning accuracy.
[0005] In view of this, the present invention proposes a vehicle model identification device with a simple structure and good waterproof performance. Utility Model Content
[0006] The purpose of this utility model is to provide a vehicle model identification device with a simple structure and good waterproof performance.
[0007] A vehicle model recognition and sensing unit, characterized in that it includes a recognition and sensing unit, a housing 1, a base 2, and a first rain cover 3. The housing 1 is located above the base 2, and the recognition and sensing unit is located inside the housing 1. The recognition and sensing unit is used to recognize and sense vehicles. The first rain cover 3 is located above the housing 1 and serves as a rain cover. The recognition and sensing unit includes a first camera 4, a second camera 5, a third camera 6, and a lidar 7. The first cameras 4 are located on the left and right sides of the housing 1 to cover the lane and recognize vehicle models on both sides. A second mounting port and a third mounting port are sequentially located in the middle of the housing 1 from top to bottom. Rainproof lenses 8 are located at both the second and third mounting ports. A second camera 5 and a third camera 6 are located behind each rainproof lens 8, both used to recognize and track all vehicles entering the field of view. A lidar 7 is located below the third camera 6, providing distance, speed, and angle data between the vehicle and the device, providing a spatial reference for visual recognition. A control module 14 is located at the rear of the housing 1, and the recognition and sensing unit is electrically connected to the control module 14.
[0008] Furthermore, the housing 1 has a first mounting port on both the left and right sides, and a first camera 4 is provided in each first mounting port. Each first camera 4 is detachably connected to the first mounting port through a first connecting component 9. The first connecting component 9 includes a first fixing piece 91 and a first adjusting post 92. The first fixing piece 91 is a circular ring structure. The first camera 4 is sleeved with the first fixing piece 91, and the first fixing piece 91 is detachably connected to the housing 1 through a plurality of first adjusting posts 92 arranged at intervals on the first fixing piece 91. The first fixing piece 91 axially fixes the first camera 4 to prevent it from vibrating and shifting.
[0009] Furthermore, a second rain cover 10 is provided above both the second camera 5 and the third camera 6 to divert rainwater and provide rain protection.
[0010] Furthermore, the base 2 is provided with protrusions 21 on all four sides, and each protrusion 21 is provided with an oblong hole 22 for adjusting the installation position. The oblong hole 22 of the base 2 is connected to the installation ground by screws, which supports fine adjustment of the installation position and adapts to uneven road surfaces.
[0011] Furthermore, an annular silicone pad 41 is provided at the connection between the first camera 4 and the first mounting port to seal and waterproof, fill the installation gap of the first camera 4, and solve the problem of chronic water vapor penetration.
[0012] Furthermore, each rainproof lens 8 has an embedded heating element, and the second rainproof cover 10 has an embedded humidity sensor. The humidity sensor monitors the ambient humidity in real time. The humidity sensor, heating element, and control module 14 are electrically connected. When the humidity sensor exceeds the activation threshold, the heating element is triggered to prevent fogging. The activation threshold of the humidity sensor is ambient humidity > 85%.
[0013] In some embodiments, the second camera 5 is adjustablely connected to the housing 1 via a second connecting assembly 11. The second connecting assembly 11 includes a lower mounting plate 111 and an upper mounting plate 112. One end of the lower mounting plate 111 is provided with a first bent mounting portion 1111, which is fixedly connected to the housing 1 by screws. Both ends of the middle portion of the lower mounting plate 111 are provided with first V-shaped protrusions 1112, and each first V-shaped protrusion 1112 is provided with a first U-shaped adjustment hole 1113. A first positioning hole 1114 is provided below the first U-shaped adjustment hole 1113. One end of the upper mounting plate 112 is provided with a second bent mounting portion 1112. The mounting part 1121 has a second camera 5 mounted on it. The upper mounting plate 112 has a second V-shaped protrusion 1122 at both ends of the middle part. Each second V-shaped protrusion 1122 has a first adjustment hole 1123 and a second positioning hole arranged from top to bottom. The second positioning hole is fixedly connected to the first positioning hole 1114 by screws. The first adjustment hole 1123 is adjustablely connected to the first U-shaped adjustment hole 1113 by screws. The angle of the second camera 5 can be adjusted by the angle of the upper mounting plate 112, thereby achieving ±15° pitch adjustment. The angle is locked by the first positioning hole 1114 and the second positioning hole to prevent displacement.
[0014] In some embodiments, the lower part of the housing 1 is also provided with a supplementary lighting device 12 for providing lighting assistance for vehicle identification. The supplementary lighting device 12 includes multiple supplementary lighting strips 121. A supplementary lighting strip 121 is provided at the left, right, upper and lower ends of the lower part of the housing 1. The supplementary lighting strip 121 is composed of multiple LED beads. The supplementary lighting device 12 provides supplementary lighting at night / low illumination conditions to eliminate blind spots in identification.
[0015] In some embodiments, the end of the first rain cover 3 is also provided with an upward guiding bend 13, so that the inclined guiding surface formed by it has an obtuse angle, which can decompose the vertically falling rainwater into a tangential flow component along the cover surface. By extending the water flow path and increasing the inertial effect, the rainwater can obtain a greater horizontal initial velocity when leaving the cover, thereby moving away from the equipment body.
[0016] In some embodiments, a millimeter-wave radar 15 is also provided below the supplementary lighting device 12. The millimeter-wave radar is electrically connected to the control module 14 and is used to accurately distinguish and track multiple adjacent vehicles in bad weather or low light conditions, thus solving the problem of vehicle separation difficulties.
[0017] The beneficial effects of this utility model are as follows: This utility model proposes a vehicle model recognition device, including a recognition and sensing unit, a housing, a base, and a first rain cover. The housing is located above the base, and the recognition and sensing unit is located inside the housing. The first rain cover is located above the housing. The recognition and sensing unit includes a first camera, a second camera, a third camera, and a laser radar. The first camera is located on the left and right sides of the housing. The second mounting port and the third mounting port are located sequentially from top to bottom in the middle of the housing. Rainproof lenses are located at both the second and third mounting ports. The second camera and the third camera are located behind each rainproof lens. The laser radar is located below the third camera. A control module is located at the rear of the housing. The recognition and sensing unit is electrically connected to the control module. By using rainproof lenses in conjunction with the second and third cameras to reduce rainwater intrusion and by setting up the laser radar to acquire distance, speed, and angle data in real time, the problem of missed detection from a single perspective is effectively solved, and the accuracy of vehicle model recognition under complex road conditions is improved. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of a vehicle model recognition device according to this application.
[0019] Figure 2 This is a schematic diagram of the overall structure of a vehicle model recognition device according to this application.
[0020] Figure 3 This is a schematic diagram of the connection structure between the second camera, the third camera, the lidar, and the housing of a vehicle model recognition device according to this application.
[0021] Figure 4 This is a partially enlarged schematic diagram of the connection between the second camera, the third camera, the lidar, and the housing of a vehicle model recognition device according to this application.
[0022] Figure 5 This is a schematic diagram of the connection between the first camera and the first connecting component of a vehicle model recognition device according to this application.
[0023] Figure 6 This is a schematic diagram showing the connection between the second camera, the third camera, and the second connecting component of a vehicle model recognition device according to this application.
[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model.
[0025] Explanation of key component symbols:
[0026] 1. Housing; 2. Base; 21. Protrusion; 22. Waist-shaped hole; 3. First rain cover; 4. First camera; 41. Annular silicone pad; 5. Second camera; 6. Third camera; 7. LiDAR; 8. Rainproof lens; 9. First connecting assembly; 91. First fixing piece; 92. First adjusting column; 10. Second rain cover; 11. Second connecting assembly; 11. Lower mounting plate; 111. First bent mounting part; 1111. First V-shaped protrusion; 1112. First U-shaped adjusting hole; 1113. First positioning hole; 1114. Upper mounting plate; 112. Second bent mounting part; 1121. Second V-shaped protrusion; 1122. First adjusting hole; 1123. Fill light device; 12. Fill light strip; 13. Airflow guide bend; 14. Control module; 15. Millimeter wave radar. Detailed Implementation
[0027] The following embodiments are described to aid in understanding this application. These embodiments are not, and should not be, construed in any way as limiting the scope of protection of this application.
[0028] In the following description, those skilled in the art will recognize that throughout this discussion, components may be described as individual functional units (which may include subunits), but those skilled in the art will recognize that various components or portions thereof may be divided into individual components or may be integrated together (including integrated within a single system or component).
[0029] Furthermore, the connection between components or systems is not intended to be limited to a direct connection; on the contrary, data between these components may be modified, reformatted, or otherwise altered by intermediate components. Additionally, other or fewer connections may be used. It should also be noted that the terms "connection," "link," or "input" should be understood to include direct connections, indirect connections via one or more intermediate devices, and wireless connections. Example 1:
[0030] like Figure 1 The diagram shown is a schematic representation of the overall structure of a vehicle model recognition device according to this application; Figure 2 The diagram shown is a schematic representation of the overall structure of a vehicle model recognition device according to this application; Figure 3 The diagram shown is a schematic representation of the connection structure between the second camera, the third camera, the lidar, and the housing in a vehicle model recognition device according to this application; Figure 4 The diagram shown is a partially enlarged schematic of the connection between the second camera, the third camera, the lidar, and the housing in a vehicle model recognition device according to this application; Figure 5 The diagram shown is a structural schematic of the connection between the first camera and the first connecting component of a vehicle model recognition device according to this application; as shown... Figure 6 The diagram shown is a structural schematic of the connection between the second camera, the third camera, and the second connecting component of a vehicle model recognition device according to this application.
[0031] A vehicle model recognition and sensing unit, characterized in that it includes a recognition and sensing unit, a housing 1, a base 2, and a first rain cover 3. The housing 1 is located above the base 2, and the recognition and sensing unit is located inside the housing 1. The recognition and sensing unit is used to recognize and sense vehicles. The first rain cover 3 is located above the housing 1 and serves as a rain cover. The recognition and sensing unit includes a first camera 4, a second camera 5, a third camera 6, and a lidar 7. The first cameras 4 are located on the left and right sides of the housing 1 to cover the lane and recognize vehicle models on both sides. A second mounting port and a third mounting port are sequentially located in the middle of the housing 1 from top to bottom. Rainproof lenses 8 are located at both the second and third mounting ports. A second camera 5 and a third camera 6 are located behind each rainproof lens 8, both used to recognize and track all vehicles entering the field of view. A lidar 7 is located below the third camera 6, providing distance, speed, and angle data between the vehicle and the device, providing a spatial reference for visual recognition. A control module 14 is located at the rear of the housing 1, and the recognition and sensing unit is electrically connected to the control module 14.
[0032] The system includes left and right first cameras 4 capturing vehicle models at the edge of the lane, and second and third cameras 5 and 6 continuously tracking passing vehicles to form a panoramic monitoring system in both horizontal and vertical directions. Simultaneously, lidar 7 emits detection waves in real time to analyze the distance, speed, and angle data between the vehicle and the equipment, providing a spatial reference for visual recognition. All sensor data is transmitted to the built-in control module 14, which uses existing multi-source information fusion algorithms: visual data and radar point clouds are spatiotemporally aligned to construct a three-dimensional trajectory of the vehicle; real-time comparison and recognition are performed based on the vehicle model feature library to output vehicle model classification results.
[0033] The housing 1 has a first mounting port on both the left and right sides. Each first mounting port has a first camera 4 installed in it. Each first camera 4 is detachably connected to the first mounting port through a first connecting component 9. The first connecting component 9 includes a first fixing piece 91 and a first adjusting post 92. The first fixing piece 91 is a circular ring structure. The first camera 4 is sleeved with the first fixing piece 91, and the first fixing piece 91 is detachably connected to the housing 1 through a plurality of first adjusting posts 92 arranged at intervals on the first fixing piece 91. The first fixing piece 91 axially fixes the first camera 4 to prevent it from vibrating and shifting.
[0034] The second camera 5 and the third camera 6 are also equipped with a second rain cover 10, which is used to divert rainwater and provide rain protection.
[0035] The base 2 has protrusions 21 on all four sides, and each protrusion 21 has a waist-shaped hole 22 for adjusting the installation position. The waist-shaped hole 22 of the base 2 is connected to the installation ground by screws.
[0036] An annular silicone pad 41 is also provided at the connection between the first camera 4 and the first mounting port to seal and waterproof, fill the installation gap of the first camera 4, and solve the problem of chronic water vapor penetration.
[0037] Each rainproof lens 8 has an embedded heating element, and the second rainproof cover 10 has an embedded humidity sensor. The humidity sensor monitors the ambient humidity in real time. The humidity sensor, heating element, and control module 14 are electrically connected. When the humidity sensor exceeds the activation threshold, the heating element is triggered to prevent fogging. The activation threshold of the humidity sensor is ambient humidity > 85%.
[0038] The second camera 5 is adjustablely connected to the housing 1 via a second connecting assembly 11. The second connecting assembly 11 includes a lower mounting plate 111 and an upper mounting plate 112. One end of the lower mounting plate 111 is provided with a first bent mounting portion 1111, which is fixedly connected to the housing 1 by screws. Both ends of the middle portion of the lower mounting plate 111 are provided with first V-shaped protrusions 1112, and each first V-shaped protrusion 1112 is provided with a first U-shaped adjustment hole 1113. Below the first U-shaped adjustment hole 1113 is a first positioning hole 1114. One end of the upper mounting plate 112 is provided with a second bent mounting portion 112. 1. A second camera 5 is provided on the second bending mounting part 1121. Both ends of the middle part of the upper mounting plate 112 are provided with a second V-shaped protrusion 1122. Each second V-shaped protrusion 1122 is provided with a first adjustment hole 1123 and a second positioning hole from top to bottom. The second positioning hole is fixedly connected to the first positioning hole 1114 by screws. The first adjustment hole 1123 is adjustablely connected to the first U-shaped adjustment hole 1113 by screws. The angle of the second camera 5 can be adjusted by the angle of the upper mounting plate 112, thereby achieving ±15° pitch adjustment. The angle is locked by the first positioning hole 1114 and the second positioning hole to prevent displacement.
[0039] The lower part of the housing 1 is also provided with a supplementary lighting device 12 for providing lighting assistance for vehicle identification. The supplementary lighting device 12 includes multiple supplementary lighting strips 121. A supplementary lighting strip 121 is provided at the left, right, upper and lower ends of the lower part of the housing 1. The supplementary lighting strip 121 is composed of multiple LED beads.
[0040] The end of the first rain cover 3 is also provided with an upward guiding bend 13, so that the inclined guiding surface formed by it has an obtuse angle. This can decompose the vertically falling rainwater into a tangential flow component along the cover surface. By extending the water flow path and increasing the inertial effect, the rainwater can obtain a greater horizontal initial velocity when leaving the cover, thereby moving away from the equipment body.
[0041] Below the supplementary lighting device 12, there is also a millimeter-wave radar 15. The millimeter-wave radar 15 is electrically connected to the control module 14 and is used to accurately distinguish and track multiple adjacent vehicles in bad weather or low light conditions, thus solving the problem of vehicle separation difficulties.
[0042] The beneficial effects of this utility model are as follows: This utility model proposes a vehicle model recognition device, including a recognition and sensing unit, a housing, a base, and a first rain cover. The housing is located above the base, and the recognition and sensing unit is located inside the housing. The first rain cover is located above the housing. The recognition and sensing unit includes a first camera, a second camera, a third camera, and a laser radar. The first camera is located on the left and right sides of the housing. The second mounting port and the third mounting port are located sequentially from top to bottom in the middle of the housing. Rainproof lenses are located at both the second and third mounting ports. The second camera and the third camera are located behind each rainproof lens. The laser radar is located below the third camera. A control module is located at the rear of the housing. The recognition and sensing unit is electrically connected to the control module. By using rainproof lenses in conjunction with the second and third cameras to reduce rainwater intrusion and by setting up the laser radar to acquire distance, speed, and angle data in real time, the problem of missed detection from a single perspective is effectively solved, and the accuracy of vehicle model recognition under complex road conditions is improved.
[0043] Although this application discloses several aspects and embodiments, other aspects and embodiments will be obvious to those skilled in the art. Various modifications and improvements can be made without departing from the concept of this application, and these all fall within the scope of protection of this application. The various aspects and embodiments disclosed in this application are for illustrative purposes only and are not intended to limit this application. The actual scope of protection of this application is determined by the claims.
Claims
1. A vehicle model recognition device, characterized in that: The device includes a recognition and sensing unit, a housing (1), a base (2), and a first rain cover (3). Its features include: a housing (1) above the base (2), a recognition and sensing unit inside the housing (1) for recognizing and sensing vehicles, a first rain cover (3) above the housing (1) for rain protection, a first camera (4), a second camera (5), a third camera (6), and a lidar (7), and first cameras (4) on the left and right sides of the housing (1) for covering the lane and recognizing vehicle models on both sides. The housing (1) has a second mounting port and a third mounting port in the middle from top to bottom. Both the second and third mounting ports are equipped with rainproof lenses (8). Each rainproof lens (8) is equipped with a second camera (5) and a third camera (6) behind it. Both cameras are used to identify and track all vehicles entering the field of view. A laser radar (7) is provided below the third camera (6). The laser radar (7) is used to obtain distance, speed and angle data between the vehicle and the equipment, providing a spatial reference for visual recognition. A control module (14) is provided at the rear of the housing (1). The recognition and sensing unit is electrically connected to the control module (14).
2. The vehicle model recognition device as described in claim 1, characterized in that: The housing (1) is provided with first mounting ports on both the left and right sides. Each first mounting port is provided with a first camera (4). Each first camera (4) is detachably connected to the first mounting port through a first connecting component (9). The first connecting component (9) includes a first fixing piece (91) and a first adjusting post (92). The first fixing piece (91) is a circular ring structure. The first camera (4) is sleeved with the first fixing piece (91), and the first fixing piece (91) is detachably connected to the housing (1) through multiple first adjusting posts (92) spaced apart on the first fixing piece (91). The first fixing piece (91) axially fixes the first camera (4) to prevent vibration and displacement.
3. The vehicle model recognition device as described in claim 1, characterized in that: The second camera (5) and the third camera (6) are also provided with a second rain cover (10) to guide rainwater and provide rain protection.
4. The vehicle model recognition device as described in claim 1, characterized in that: The base (2) is provided with protrusions (21) on all four sides. Each protrusion (21) is provided with a waist-shaped hole (22) for adjusting the installation position. The waist-shaped hole (22) of the base (2) is connected to the installation ground by screws.
5. The vehicle model recognition device as described in claim 1, characterized in that: The first camera (4) and the first mounting port are also provided with an annular silicone pad (41) for sealing and waterproofing.
6. The vehicle model recognition device as described in claim 1, characterized in that: Each rainproof lens (8) has a built-in heating element, and the second rainproof cover (10) has a built-in humidity sensor. The humidity sensor, heating element and control module (14) are electrically connected. When the humidity sensor exceeds the start threshold, the heating element is triggered to prevent fogging. The start threshold of the humidity sensor is the ambient humidity > 85%.
7. The vehicle model recognition device as described in claim 1, characterized in that: The second camera (5) is tunably connected to the housing (1) via a second connecting assembly (11). The second connecting assembly (11) includes a lower mounting plate (111) and an upper mounting plate (112). One end of the lower mounting plate (111) is provided with a first bent mounting part (1111), which is fixedly connected to the housing (1) by screws. Both ends of the middle part of the lower mounting plate (111) are provided with a first V-shaped protrusion (1112). Each first V-shaped protrusion (1112) is provided with a first U-shaped adjustment hole (1113), and a first positioning hole (1114) is provided below the first U-shaped adjustment hole (1113). One end of the upper mounting plate (112) is provided with a second bent mounting part. The second camera (5) is provided on the second bending mounting part (1121). The two ends of the middle part of the upper mounting plate (112) are provided with second V-shaped protrusions (1122). Each second V-shaped protrusion (1122) is provided with a first adjustment hole (1123) and a second positioning hole from top to bottom. The second positioning hole is fixedly connected to the first positioning hole (1114) by screws. The first adjustment hole (1123) is adjustablely connected to the first U-shaped adjustment hole (1113) by screws. The angle of the second camera (5) can be adjusted by the angle of the upper mounting plate (112) to achieve ±15° pitch adjustment. The angle of the first positioning hole (1114) and the second positioning hole is locked to prevent displacement.
8. The vehicle model recognition device as described in claim 1, characterized in that: The lower part of the housing (1) is also provided with a supplementary light device (12) for providing lighting assistance for vehicle identification. The supplementary light device (12) includes multiple supplementary light strips (121). A supplementary light strip (121) is provided at the left, right, upper and lower ends of the lower part of the housing (1). The supplementary light strip (121) is composed of multiple LED beads.
9. The vehicle model recognition device as described in claim 1, characterized in that: The end of the first rain cover (3) is also provided with an upward flow guide bend (13), so that the inclined flow guide surface formed by it has an obtuse angle, which can decompose the vertically falling rainwater into a tangential flow component along the cover surface. By extending the water flow path and increasing the inertial effect, the rainwater can obtain a greater horizontal initial velocity when leaving the cover, thereby moving away from the equipment body.
10. The vehicle model recognition device as described in claim 1, characterized in that: Below the supplementary lighting device (12) is a millimeter-wave radar (15), which is electrically connected to the control module (14).