License plate recognition device based on aerial photo of unmanned aerial vehicle

Abstract

The utility model discloses a license plate recognition device based on unmanned aerial vehicle aerial pictures, and relates to the technical field of license plate recognition. The license plate recognition device comprises a base and an unmanned aerial vehicle. The unmanned aerial vehicle comprises a base, a power supply mechanism is installed in the base, a placement groove is formed in the upper end of the base, clamping mechanisms are installed on the two sides of the upper end of the placement groove, a wireless charging base is installed at the bottom end of the interior of the placement groove, the unmanned aerial vehicle is composed of a vehicle body and wings, and a shooting mechanism is installed at the front end of the vehicle body. And a wireless charging module is mounted at the bottom end of the machine body. When the electric quantity is small or the unmanned aerial vehicle is patrolled once, the unmanned aerial vehicle can automatically return, can automatically stop in the placing groove in the base through a spot hovering technology, is clamped and fixed through the clamping mechanism, and can be charged through the cooperation between the wireless charging seat and the wireless charging module. And the battery in the unmanned aerial vehicle is rapidly charged, so that the unmanned aerial vehicle can be repeatedly used for a long time.

Description

Technical Field

[0001] The utility model belongs to the field of UAV navigation, and specifically relates to a license plate recognition device based on UAV aerial photography pictures. Background Technique

[0002] An unmanned aerial vehicle, abbreviated as "UAV", is an unpiloted aircraft controlled by a radio remote control device and a self - contained program control device. When there is congestion on the upper side of a highway, a large number of people will occupy the emergency lane, and license plate recognition can be carried out through UAV aerial photography.

[0003] Chinese Patent No. CN201920071496.X discloses an unmanned aerial vehicle for automatically recognizing license plate numbers, including a UAV. An angle control servo is fixedly arranged at the lower end of the UAV, a camera is fixedly arranged at the lower end of the angle control servo, an identification device is fixedly hung below the UAV, the camera is electrically connected with the identification device, the UAV includes a UAV control unit, and the UAV control unit is electrically connected with the identification device.

[0004] When this utility model is used at a long distance for a long time, there is a lack of a supporting power supply device, and the power is likely to be insufficient, so it cannot be used on the upper side of the highway for a long time.

[0005] In view of this, the present utility model is specifically proposed. Content of the Utility Model

[0006] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a license plate recognition device based on UAV aerial photography pictures.

[0007] To solve the above - mentioned technical problem, the basic concept of the technical solution adopted by the present utility model is:

[0008] A license plate recognition device based on UAV aerial photography pictures includes a base and a UAV; an installation plate is installed at the bottom end of the base, a power supply mechanism is installed inside the base, a placement groove is arranged at the upper end of the base, clamping mechanisms are installed on both sides at the upper end of the placement groove, a wireless charging stand is installed at the bottom end inside the placement groove, the UAV is composed of a fuselage and wings, the wings are installed around the fuselage, a battery is installed at the upper end of the fuselage, a photographing mechanism is installed at the front end of the fuselage, and a wireless charging module is installed at the bottom end of the fuselage.

[0009] Optionally, the clamping mechanism is composed of a telescopic rod and a clamping plate. The telescopic rod is installed on both sides of the upper end of the base at the positions of the placement groove, and the clamping plate is installed at the front end of the telescopic rod.

[0010] Optionally, a rubber pad is arranged at the front end of the clamping plate, and the rubber pad is pasted at the front end of the clamping plate through an adhesive.

[0011] Optionally, the power supply mechanism consists of a power source, a charging hole, and a power indicator light. The power source is installed inside the base, and the charging hole and the power indicator light are installed on the upper side of the power source.

[0012] Optionally, the shooting mechanism consists of a motor mounting bracket and a camera. The camera is installed on the upper side of the mounting bracket, the mounting bracket is installed at the front end of the motor, and the motor is installed at the front end of the body.

[0013] Optionally, a height sensor is provided at the bottom end of the body, and the height sensor is installed at the bottom end of the body.

[0014] Optionally, an anti-collision device is provided at the front end of the body, and the anti-collision device is installed at the front end of the body.

[0015] After adopting the above technical solution, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below:

[0016] 1. When the battery power is low or after a patrol, the drone can automatically return. Through the technology of fixed-point hovering, it can automatically stop inside the placement groove on the base, be clamped and fixed by the clamping mechanism, and through the cooperation between the wireless charging base and the wireless charging module, quickly charge the battery inside the drone, which can meet the long-term repeated use of the drone. The principle of the drone's fixed-point parking mainly relies on a set of negative feedback automatic control system, which is achieved through the collaborative work of multiple sensors and the flight control system.

[0017] 2. When in use, the clamping mechanism opens the telescopic rod through a switch, and the telescopic rod will drive the clamping plate to move, and the clamping plate clamps and fixes the drone parked inside the placement groove.

[0018] 3. When in use, the power supply mechanism stores electrical energy through the power source. The charging hole is used to charge the inside of the power source, and the power indicator light is provided to display the power inside the power source.

[0019] 4. The setting of the height sensor can detect the flight height of the drone, thus facilitating the control of the flight height of the drone.

[0020] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. Description of the Drawings

[0021] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0022] Figure 1 Structural schematic diagram of an embodiment of the present utility model;

[0023] Figure 2 Structural schematic diagram of the base of an embodiment of the present utility model;

[0024] Figure 3 Structural schematic diagram of an embodiment of the drone of the present utility model;

[0025] Figure 4 Side view structural schematic diagram of an embodiment of the drone of the present utility model;

[0026] Figure 5 Structural schematic diagram of an embodiment of the shooting mechanism of the present utility model;

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] 1. Base; 2. Drone; 3. Power supply mechanism; 4. Power source; 5. Mounting plate; 6. Battery level indicator; 7. Charging hole; 8. Clamping mechanism; 9. Rubber pad; 10. Clamping plate; 11. Telescopic rod; 12. Battery; 13. Wing; 14. Shooting mechanism; 15. Anti-collision instrument; 16. Airframe; 17. Mounting bracket; 18. Camera; 19. Motor; 20. Altitude sensor; 21. Wireless charging base; 22. Placing groove; 23. Wireless charging module.

[0029] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0030] Now, the present utility model will be further described in detail with reference to the drawings.

[0031] Please refer to Figures 1-5 As shown, in this embodiment, a license plate recognition device based on aerial images of drones is provided, including a base 1 and a drone 2; an installation plate 5 is installed at the bottom end of the base 1, a power supply mechanism 3 is installed inside the base 1, a placing groove 22 is arranged at the upper end of the base 1, clamping mechanisms 8 are installed on both sides at the upper end of the placing groove 22, a wireless charging base 21 is installed at the bottom end inside the placing groove 22, the drone 2 is composed of an airframe 16 and wings 13, the wings 13 are installed around the airframe 16, a battery 12 is installed at the upper end of the airframe 16, a shooting mechanism 14 is installed at the front end of the airframe 16, and a wireless charging module 23 is installed at the bottom end of the airframe 16.

[0032] One application of this embodiment is as follows: When installing, the base 1 is installed on the upper side of a moving vehicle, such as a police car. On the highway, the police car is driving behind, and the drone 2 can fly forward quickly. During the flight, the vehicle occupying the lane is photographed by the photographing mechanism 14 to identify the license plate. Since the drone 2 consumes a large amount of power during flight, when the power is low or after a patrol, the drone 2 can automatically return. Through the fixed-point hovering technology, it can automatically stop inside the placement groove 22 on the base 1 and is clamped and fixed by the clamping mechanism 8. Moreover, through the cooperation between the wireless charging base 21 and the wireless charging module 23, the battery 12 inside the drone 2 is quickly charged, which can meet the long-term repeated use of the drone 2. The principle of the fixed-point parking of the drone 2 mainly depends on a negative feedback automatic control system, which is achieved through the collaborative work of a variety of sensors and the flight control system.

[0033] In this embodiment, the clamping mechanism 8 is composed of a telescopic rod 11 and a clamping plate 10. The telescopic rod 11 is installed on both sides of the placement groove 22 at the upper end of the base 1, and the clamping plate 10 is installed at the front end of the telescopic rod 11. When the clamping mechanism 8 is in use, the telescopic rod 11 is turned on through a switch, and the telescopic rod 11 will drive the clamping plate 10 to move, and the drone 2 parked inside the placement groove 22 is clamped and fixed by the clamping plate 10.

[0034] In this embodiment, a rubber pad 9 is provided at the front end of the clamping plate 10. The rubber pad 9 is pasted at the front end of the clamping plate 10 through an adhesive. The texture of the rubber pad 9 is relatively soft. When the clamping plate 10 clamps and fixes the drone 2, on the one hand, the rubber pad 9 can make the clamping of the drone 2 by the clamping plate 10 stable, and on the other hand, it can prevent the clamping plate 10 from scratching the outer surface of the drone 2.

[0035] In this embodiment, the power supply mechanism 3 is composed of a power source 4, a charging hole 7, and a power indicator light 6. The power source 4 is installed inside the base 1, and the charging hole 7 and the power indicator light 6 are installed on the upper side of the power source 4. When the power supply mechanism 3 is in use, electrical energy is stored by the power source 4, the charging hole 7 is used to charge the inside of the power source 4, and the power indicator light 6 is provided to display the power inside the power source 4.

[0036] In this embodiment, the photographing mechanism 14 is composed of a motor 19, a mounting bracket 17, and a camera 18. The camera 18 is installed on the upper side of the mounting bracket 17, the mounting bracket 17 is installed at the front end of the motor 19, and the motor 19 is installed at the front end of the body 16. When the photographing mechanism 14 is in use, image acquisition is performed through the camera 18, and the rotation of the motor 19 can drive the mounting bracket 17 and the camera 18 to rotate, facilitating the adjustment of the shooting angle of the camera 18.

[0037] In this embodiment, a height sensor 20 is provided at the bottom end of the airframe 16. The height sensor 20 is installed at the bottom end of the airframe 16. The setting of the height sensor 20 can detect the flight height of the drone 2, thus facilitating the control of the flight height of the drone 2.

[0038] In this embodiment, an anti-collision device 15 is provided at the front end of the airframe 16. The anti-collision device 15 is installed at the front end of the airframe 16. During use, the anti-collision device 15 can measure the distance to obstacles through the principle of infrared ranging, avoiding the phenomenon of collision between the drone 2 and obstacles during flight.

[0039] The present utility model is not limited to the above embodiments. Anyone should know that structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, fall within the protection scope of the present utility model. The technologies, shapes, and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A license plate recognition device based on drone aerial photography, characterized in that: The invention comprises a base (1) and an unmanned aerial vehicle (2); a mounting plate (5) is installed at the bottom of the base (1); a power supply mechanism (3) is installed inside the base (1); a placement groove (22) is arranged at the top of the base (1); clamping mechanisms (8) are installed at both sides of the top of the placement groove (22); a wireless charging seat (21) is installed at the bottom of the placement groove (22); the unmanned aerial vehicle (2) is composed of a body (16) and wings (13); the wings (13) are installed around the body (16); a battery (12) is installed at the top of the body (16); a shooting mechanism (14) is installed at the front end of the body (16); and a wireless charging module (23) is installed at the bottom of the body (16).

2. The license plate recognition device based on drone aerial photography according to claim 1 is characterized in that: The clamping mechanism (8) is composed of a telescopic rod (11) and a clamping plate (10); the telescopic rod (11) is mounted on the upper end of the base (1) at both sides of the placement groove (22); and the clamping plate (10) is mounted at the front end of the telescopic rod (11).

3. The license plate recognition device based on drone aerial photography according to claim 2 is characterized in that: A rubber pad (9) is provided at the front end of the clamping plate (10), and the rubber pad (9) is adhered to the front end of the clamping plate (10) by adhesive.

4. The license plate recognition device based on drone aerial photography according to claim 1 is characterized in that: The power supply mechanism (3) is composed of a power supply (4), a charging hole (7) and a power indicator light (6); the power supply (4) is installed inside the base (1); and the charging hole (7) and the power indicator light (6) are installed on the upper side of the power supply (4).

5. The license plate recognition device based on drone aerial photography according to claim 1 is characterized in that: The shooting mechanism (14) is composed of a motor (19) mounting frame (17) and a camera (18), wherein the camera (18) is mounted on the upper side of the mounting frame (17), the mounting frame (17) is mounted at the front end of the motor (19), and the motor (19) is mounted at the front end of the body (16).

6. The license plate recognition device based on drone aerial photography according to claim 1 is characterized in that: A height sensor (20) is provided at the bottom end of the machine body (16), and the height sensor (20) is installed at the bottom end of the machine body (16).

7. The license plate recognition device based on drone aerial photography according to claim 1 is characterized in that: An anti-collision device (15) is provided at the front end of the machine body (16), and the anti-collision device (15) is installed at the front end of the machine body (16).

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