Device for vehicle picture multi-feature matching

Abstract

The utility model belongs to the technical field of vehicle picture matching devices, and discloses a device for vehicle picture multi-feature matching, which comprises a gate, a stop lever mounted on the gate, a camera slidably connected to one end of the stop lever, a pair of chain wheels rotatably connected to one end, close to the camera, of the stop lever, and chains mounted at the outer ends of the chain wheels. According to the scheme, the camera used for obtaining vehicle pictures is directly arranged on the stop lever, the camera is closer to a vehicle, the vehicle can be conveniently shot, the camera is arranged on the stop lever, the camera is arranged on the stop lever, the camera is arranged on the stop lever, the camera is arranged on the stop lever, and the camera is arranged on the stop lever. And through the arrangement of the chain, the camera can be driven to slide left and right on the stop lever, so that the license plate or other positions of the vehicle can be aligned more accurately, convenience is brought to image acquisition, and the use convenience of the device is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle image matching devices, and in particular to a device for multi-feature matching of vehicle images. Background Technology

[0002] Devices used for multi-feature matching of vehicle images typically refer to a computer vision system or software that can match and recognize multiple features in vehicle images. These devices usually use image processing and computer vision technologies to achieve vehicle recognition and matching by comparing various features in vehicle images. Such devices have wide applications in traffic management, security monitoring, parking management, and other fields, and can help achieve intelligent vehicle recognition and management.

[0003] Devices used for multi-feature matching of vehicle images typically acquire vehicle images through cameras or other image acquisition devices, extract multiple features from the vehicle images, such as vehicle shape, license plate number, and logos, compare and match the extracted features with vehicle features in a known database, and identify and verify the vehicle based on the matching results.

[0004] The use of multi-feature matching devices for vehicle images is widespread in existing residential communities and parking lots. These devices are used in conjunction with access control systems to identify external vehicles. However, most of the cameras used to acquire vehicle images in existing devices are installed on the gates. For some access control channels with relatively wide entrances, fixed cameras may create blind spots with the license plates of vehicles in front of the gates, making it impossible to clearly capture the license plate numbers, which causes inconvenience in use. Utility Model Content

[0005] This utility model aims to provide a device for multi-feature matching of vehicle images to solve the problems mentioned in the background art. This solution directly sets the camera for acquiring vehicle images on the gear lever, which is closer to the vehicle and facilitates taking pictures of the vehicle. The chain setting can drive the camera to slide left and right on the gear lever, thereby more accurately aligning with the license plate or other positions of the vehicle, bringing convenience to image acquisition and effectively improving the ease of use of the device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for multi-feature matching of vehicle images includes a gate with a stop bar installed on it. A camera is slidably connected to one end of the stop bar, and a pair of sprockets are rotatably connected to the end of the stop bar near the camera. A chain is installed on the outer end of the sprockets, and the pair of sprockets are connected by chain drive. A servo motor is installed at one end of the stop bar, and one of the sprockets is connected to the output end of the servo motor. The camera is fixedly connected to the chain.

[0008] Preferably, the pair of sprockets are symmetrical to each other and are respectively disposed on both sides of one end of the stop bar.

[0009] Preferably, a protective cover is fixedly connected to one end of the stop bar near the camera. The protective cover covers the outside of a pair of sprockets and a chain, and the lower end of the protective cover is open.

[0010] Preferably, the bottom of the protective cover has multiple through slots, the camera and the through slots are at the same horizontal position, and the multiple through slots are arranged at equal intervals.

[0011] Preferably, a plurality of dust removal pads are installed at the inner end of the protective cover, and the dust removal pads are disposed between two adjacent through slots.

[0012] The beneficial effects of this technical solution compared to existing technologies are as follows:

[0013] This solution places the camera used to acquire vehicle images directly on the gear lever, bringing it closer to the vehicle and facilitating image capture. The chain allows the camera to slide left and right on the gear lever, enabling more precise alignment with the license plate or other parts of the vehicle, thus improving image acquisition and enhancing the ease of use of the device. Attached Figure Description

[0014] Figure 1 A schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of a partially exploded structure provided by this utility model;

[0016] Figure 3 A schematic diagram of the camera structure provided by this utility model;

[0017] Figure 4 This is a schematic diagram of the inner structure of the protective cover provided by this utility model.

[0018] Attached reference numerals: 1. Turnstile; 2. Bar; 3. Camera; 4. Servo motor; 5. Sprocket; 6. Chain; 7. Protective cover; 8. Through slot; 9. Dust removal pad. Detailed Implementation

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments:

[0020] like Figure 1-3The device shown is for multi-feature matching of vehicle images, including a gate 1, a stop bar 2 installed on the gate 1, a camera 3 slidably connected to one end of the stop bar 2, and a pair of sprockets 5 rotatably connected to the end of the stop bar 2 near the camera 3. A chain 6 is installed on the outer end of the sprockets 5, and the pair of sprockets 5 are connected by transmission through the chain 6. A servo motor 4 is installed at one end of the stop bar 2, and one of the sprockets 5 is connected to the output end of the servo motor 4. The camera 3 is fixedly connected to the chain 6. The pair of sprockets 5 are symmetrical to each other and are respectively arranged on both sides of one end of the stop bar 2.

[0021] This solution places the camera 3, used to acquire vehicle images, directly on the gear lever 2. When a vehicle approaches, it is positioned directly in front of the vehicle, closer to it, making it easier to capture images. To avoid a blind spot between the camera 3 and the license plate caused by an excessively long gear lever 2, the camera 3 can slide freely on the gear lever 2. The user can activate the servo motor 4 to rotate one of the sprockets 5, which in turn drives the other sprocket 5 through the chain 6. With the cooperation of the two sprockets 5, the chain 6 can move the camera 3 left and right on the gear lever 2, thus more accurately aligning it with the license plate and facilitating image acquisition.

[0022] like Figure 2-4 As shown, a protective cover 7 is fixedly connected to one end of the stop bar 2 near the camera 3. The protective cover 7 covers the outside of a pair of sprockets 5 and a chain 6, and the lower end of the protective cover 7 is open. Multiple through slots 8 are provided at the bottom of the protective cover 7. The camera 3 and the through slots 8 are at the same horizontal position. The multiple through slots 8 are arranged at equal intervals. Multiple dust removal pads 9 are installed inside the protective cover 7. The dust removal pads 9 are arranged between two adjacent through slots 8.

[0023] In this design, the protective cover 7 protects the sprocket 5 and chain 6, reducing the possibility of them being impacted by external forces. It also provides a certain degree of dust protection. The multiple through slots 8 ensure that the protective cover 7 does not obstruct the field of view of the camera 3 during its movement. When the camera 3 passes between two adjacent through slots 8, the lens of the camera 3 will be wiped by the dust removal pad 9 on the inside of the protective cover 7. The dust removal pad 9 can be made of sponge or other flexible material, so that it can also clean the dust from the lens of the camera 3 during its movement, thus maintaining the clarity of the lens of the camera 3.

[0024] The specific implementation process is as follows:

[0025] In use, camera 3 takes pictures directly on barrier 2, getting closer to passing vehicles. After the system analyzes the vehicle images captured by camera 3 and confirms feature matching, the gate 1 will control barrier 2 to lift and allow the vehicle to pass. When camera 3 cannot clearly capture the license plate, the user starts servo motor 4 to drive one of the sprockets 5 to rotate, which in turn drives the other sprocket 5 to rotate through chain 6. With the cooperation of the two sprockets 5, chain 6 drives camera 3 to slide left and right on barrier 2 until camera 3 is precisely aligned with the license plate and obtains a clear image.

[0026] The above descriptions are merely embodiments of this utility model. Commonly known technical solutions and / or characteristics are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solution of this utility model. These modifications and improvements should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. An apparatus for vehicle picture multi-feature matching, the apparatus comprising: The utility model relates to a barrier gate, including the barrier gate (1), the barrier (2) is installed on the barrier gate (1), one end of the barrier (2) is slidably connected with the camera (3), and a pair of sprocket wheels (5) are rotatably connected to the end of the barrier (2) close to the camera (3), the outer end of the sprocket wheel (5) is equipped with chain (6), a pair of sprocket wheels (5) are drivenly connected through chain (6), the barrier (2) one end is equipped with servo motor (4), one of sprocket wheel (5) is connected with the output end of servo motor (4), the camera (3) is fixedly connected with chain (6).

2. The apparatus for multi-feature matching of vehicle images of claim 1, wherein: A pair of the sprocket wheel (5) is symmetrical and is arranged on both sides of the end of the barrier (2) respectively.

3. The apparatus for multi-feature matching of vehicle images of claim 1, wherein: The end of the barrier (2) close to the camera (3) is fixedly connected with the protective cover (7), the protective cover (7) covers the outside of a pair of sprocket wheels (5) and chain (6), and the lower end of the protective cover (7) is open.

4. The apparatus for multi-feature matching of vehicle images of claim 3, wherein: The bottom of the protective cover (7) is provided with a plurality of through grooves (8), the camera (3) and the through groove (8) are in the same horizontal position, and a plurality of the through grooves (8) are equidistantly arranged.

5. The apparatus for multi-feature matching of vehicle images of claim 4, wherein: The inner end of the protective cover (7) is provided with a plurality of dust removal pads (9), and the dust removal pads (9) are arranged between two adjacent through grooves (8).

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