License plate recognition device capable of preventing strong light interference

Abstract

The embodiment of the utility model provides a license plate recognition device capable of preventing strong light interference, and relates to the technical field of license plate recognition. The license plate recognition device capable of preventing strong light interference comprises a base, a vertical rod is fixedly arranged at the upper end of the base, a camera is rotatably arranged at the upper end of the vertical rod, a protection assembly is arranged on the outer side of the camera, a shading assembly is installed on the upper side of the protection assembly, and the shading angle of the shading assembly is adjusted through rotation. And the shading assembly and the protection assembly wrap the camera. The camera in the outer cover is shielded through the shading plate, the rack is meshed with the adjusting gear by pushing and pulling the rack through the hydraulic rod, the adjusting gear can drive the shading plate to rotate and adjust the shading angle, and the position of the shading plate is adjusted according to sliding of the movable seat in the sliding groove. Therefore, the strong light is shielded according to the sunlight irradiation condition, and the definition of the camera for identifying the vehicle is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of license plate recognition, in particular to a license plate recognition device capable of preventing strong light interference. Background Art

[0002] License plate recognition is a computer vision technology used to automatically identify the license plate numbers of moving or parked vehicles. This technology is widely used in traffic management, security monitoring, parking lot management, electronic toll collection systems (such as ETC systems on highways), intelligent transportation systems, and other automated vehicle recognition scenarios.

[0003] According to patent announcement number CN217305990U, a license plate recognition device is disclosed. The utility model provides a license plate recognition device, including: a chassis, a column, a connecting block, a supporting block, a display device, a license plate recognition camera, a first limiting sleeve and a second limiting sleeve. During installation, the chassis can be fixed underground to ensure the stability of the license plate recognition device installation, and in special circumstances, when the license plate recognition device needs to vacate a position to allow large transport objects to pass smoothly, the first limiting sleeve and the second limiting sleeve can be quickly removed, the column is rotated to one side, and the display device is rotated relative to the supporting block, so that the part below the display device enters the reserved accommodation groove on the ground to reduce space occupation.

[0004] It can be seen that although the existing technology makes the recognition device more stable, since the recognition device is mostly installed outdoors and without any obstruction, the outdoor light has a certain impact on it. When the light is too strong, it is easy to reduce the recognition rate of the camera and affect the recognition efficiency. Of course, there are also cases where a baffle is installed on the upper side of the recognition device, but some recognition devices can be adjusted according to the position of the vehicle, and the mounting plate is not convenient to move, so it is not convenient to shield the adjusted recognition device from light, and when encountering rainy and snowy weather, rain and snow accumulate on the baffle, which can easily cause moisture to penetrate into the camera and cause damage to the camera. Utility Model Content

[0005] The purpose of the utility model is to provide a license plate recognition device that is resistant to strong light interference, which can avoid the situation that some recognition devices can be adjusted according to the position of the vehicle, but the mounting plate is not convenient to move, so it is not convenient to shield the adjusted recognition device from light, and when encountering rainy and snowy weather, rain and snow accumulate on the baffle, which can easily cause moisture to penetrate into the camera and cause damage to the camera.

[0006] The utility model provides a license plate recognition device that is resistant to strong light interference, comprising a base, a vertical pole fixedly arranged on the upper end of the base, a camera rotatably arranged on the upper end of the vertical pole, a protective component arranged on the outer side of the camera, a shading component installed on the upper side of the protective component, the shading component adjusts the shading angle by rotating, and the shading component and the protective component wrap the camera.

[0007] Preferably, the protection component comprises a rotating sleeve rotatably arranged on the vertical pole, bottom plates are arranged on both sides of the rotating sleeve, and an outer cover is arranged on the upper side of the bottom plate.

[0008] Preferably, a turntable is connected to the rotating shaft at the lower end of the camera, teeth are arranged on the lower side of the turntable, a fixing seat is arranged on the vertical pole, a driving wheel is rotatably arranged on one side of the fixing seat, and the driving wheel is meshed with the teeth.

[0009] Preferably, the turntable and the rotating sleeve are connected via a connecting rod.

[0010] Preferably, the shading assembly comprises a pair of movable seats, the pair of movable seats are respectively slidably connected to sliding grooves symmetrically opened at the upper end of the outer cover, and a shading plate is rotatably arranged between the two movable seats.

[0011] Preferably, the rotating shafts at both ends of the shading plate are connected with adjusting gears, and the adjusting gears are meshed with the racks on the upper side of the moving seat.

[0012] Preferably, a limiting groove is provided on the movable seat, and a rack is slidably connected in the limiting groove.

[0013] Preferably, a hydraulic rod is installed on one side of the movable seat, and a piston end of the hydraulic rod is connected to one end of the rack.

[0014] Preferably, a screw rod is rotatably arranged in one of the slide grooves, and the screw rod is threadedly connected to the movable seat.

[0015] Preferably, a scraper is provided on the lower side of the shading plate, and the lower side of the scraper is in contact with the upper side of the outer cover.

[0016] The embodiment of the utility model provides a license plate recognition device that prevents strong light interference, compared with the prior art:

[0017] 1. The utility model shields the camera in the outer cover through the sunshade, and according to the hydraulic rod pushing and pulling the rack, the rack is meshed with the adjusting gear, and the adjusting gear can rotate with the sunshade to adjust the shading angle, and according to the sliding of the moving seat in the slide groove, the position of the sunshade is adjusted, and then the strong light is shielded according to the sunlight exposure, so as to improve the clarity of the camera to recognize the vehicle. At the same time, through the meshing of the driving wheel and the teeth, the turntable rotates with the camera, and the connecting rod rotates with the rotating sleeve, the bottom plate, the outer cover and the sunshade, so that the sunshade always shields the camera.

[0018] 2. The utility model enables the moving seat to move with the sunshade by sliding the moving seat in the slide groove, and the scraper on one side of the sunshade scrapes the upper side of the outer cover, so as to clean the rain and snow on rainy and snowy days and prevent the camera from getting wet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 It is a partial schematic diagram of the overall structure of an embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly of the camera and the pole structure of an embodiment of the utility model;

[0024] Figure 5 For the utility model embodiment Figure 4 A schematic diagram of the structure at A;

[0025] Figure 6 This is a schematic diagram of the outer cover structure of an embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of a shading component according to an embodiment of the utility model;

[0027] Figure 8 The figure is a schematic diagram of the structure of the sunshade according to an embodiment of the utility model.

[0028] Reference numerals:

[0029] 1. Base; 2. Vertical pole; 3. Camera; 4. Turntable; 5. Teeth; 6. Fixed seat; 7. Driving wheel; 8. Connecting rod; 9. Rotating sleeve; 10. Bottom plate; 11. Outer cover; 12. Slide groove; 13. Screw rod; 14. Moving seat; 15. Sunshade; 16. Adjusting gear; 17. Scraper; 18. Limiting groove; 19. Rack; 20. Hydraulic rod. DETAILED DESCRIPTION

[0030] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0031] Please refer to Figure 1-Figure 8 The embodiment of the utility model provides a license plate recognition device that is resistant to strong light interference, including a base 1, a vertical pole 2 is fixedly provided on the upper end of the base 1, a camera 3 is rotatably provided on the upper end of the vertical pole 2, and a protective component is provided on the outer side of the camera 3. The protective component can rotate with the rotation of the camera 3, so as to protect the camera 3.

[0032] The protection component includes a rotating sleeve 9 rotatably set on the vertical pole 2, with base plates 10 set on both sides of the rotating sleeve 9, and an outer cover 11 set on the upper side of the base plate 10. The outer cover 11 is located on the outer side of the camera 3 to protect the camera 3 and extend the service life of the camera 3.

[0033] A turntable 4 is connected to the rotating shaft at the lower end of the camera 3, and teeth 5 are arranged on the lower side of the turntable 4. A fixed seat 6 is arranged on the vertical pole 2, and a driving wheel 7 is rotatably arranged on one side of the fixed seat 6. The driving wheel 7 is driven by a motor and meshes with the teeth 5 through the driving wheel 7, so that the teeth 5 rotate with the turntable 4, and then the camera 3 rotates to adjust the recognition position of the camera 3.

[0034] Since the turntable 4 and the rotating sleeve 9 are connected by the connecting rod 8 , when the camera 3 rotates, the rotating sleeve 9 is driven by the connecting rod 8 to rotate together with the bottom plate 10 and the outer cover 11 .

[0035] Furthermore, a shading component is installed on the upper side of the protective component. The shading component adjusts the shading angle by rotating, and the shading component and the protective component wrap the camera 3.

[0036] The shading assembly includes a pair of movable seats 14, which are respectively slidably connected to the slide grooves 12 symmetrically opened at the upper end of the outer cover 11. A shading plate 15 is rotatably arranged between the two movable seats 14. The shading angle of the shading plate 15 is adjusted by rotation to improve the shading effect. At the same time, according to the sliding of the movable seat 14 in the slide groove 12, the position of the shading plate 15 is adjusted to enable the shading plate 15 to better perform shading.

[0037] In order to make the shading plate 15 rotate automatically, adjusting gears 16 are connected to the rotating shafts at both ends of the shading plate 15, and the adjusting gears 16 are engaged with the rack 19 on the upper side of the moving seat 14. A limiting groove 18 is provided on the moving seat 14, and the rack 19 is slidably connected in the limiting groove 18. A hydraulic rod 20 is installed on one side of the moving seat 14, and the piston end of the hydraulic rod 20 is connected to one end of the rack 19. The hydraulic rod 20 pushes the rack 19 to make the adjusting gear 16 rotate with the shading plate 15 automatically.

[0038] At the same time, a screw rod 13 is rotatably arranged in one of the slide grooves 12. The screw rod 13 is driven by a micro motor. A waterproof cover is provided outside the micro motor. The screw rod 13 is threadedly connected to a movable seat 14. When the screw rod 13 rotates, the movable seat 14 can move automatically to adjust the position of the sunshade 15. Of course, the moving distance of the sunshade 15 can meet the rotation angle of the sunshade 15.

[0039] When the shading plate 15 continues to move, since a scraper 17 is provided on the lower side of the shading plate 15, the lower side of the scraper 17 is in contact with the upper side of the outer cover 11, and the scraper 17 can scrape the upper side of the outer cover 11, so that when there is rain or snow on the upper side of the outer cover 11, it is convenient to clean the rain or snow.

[0040] In summary, the working principle of the license plate recognition device that is anti-strong light interference in the embodiment of the utility model is: the camera 3 in the outer cover 11 is blocked by the sunshade 15, and the rack 19 is pushed and pulled according to the hydraulic rod 20, so that the rack 19 is engaged with the adjusting gear 16, and the adjusting gear 16 rotates with the sunshade 15 to adjust the shading angle, and according to the sliding of the moving seat 14 in the slide groove 12, the position of the sunshade 15 is adjusted, and then the strong light is blocked according to the sunlight exposure, so as to improve the clarity of the camera 3 in identifying the vehicle. In addition, by sliding the moving seat 14 in the slide groove 12, the moving seat 14 moves with the sunshade 15, and the scraper 17 on one side of the sunshade 15 scratches the upper side of the outer cover 11, so as to clean the rain and snow on rainy and snowy days to prevent the camera 3 from getting wet.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A license plate recognition device that is resistant to strong light interference, comprising a base (1), characterized in that: A vertical pole (2) is fixedly provided at the upper end of the base (1), a camera (3) is rotatably provided at the upper end of the vertical pole (2), a protective component is provided on the outer side of the camera (3), a shading component is installed on the upper side of the protective component, the shading component adjusts the shading angle by rotation, and the shading component and the protective component wrap the camera (3).

2. The license plate recognition device against strong light interference according to claim 1 is characterized in that: The protection component comprises a rotating sleeve (9) rotatably arranged on the vertical pole (2), bottom plates (10) are arranged on both sides of the rotating sleeve (9), and an outer cover (11) is arranged on the upper side of the bottom plate (10).

3. The license plate recognition device against strong light interference according to claim 2 is characterized in that: A rotating disk (4) is connected to the rotating shaft at the lower end of the camera (3), and teeth (5) are arranged on the lower side of the rotating disk (4). A fixing seat (6) is arranged on the vertical rod (2), and a driving wheel (7) is rotatably arranged on one side of the fixing seat (6), and the driving wheel (7) is meshed with the teeth (5).

4. The license plate recognition device against strong light interference according to claim 3 is characterized in that: The rotating disk (4) and the rotating sleeve (9) are connected via a connecting rod (8).

5. The license plate recognition device against strong light interference according to claim 4 is characterized in that: The shading assembly comprises a pair of movable seats (14), the pair of movable seats (14) are respectively slidably connected to sliding grooves (12) symmetrically opened at the upper end of the outer cover (11), and a shading plate (15) is rotatably arranged between the two movable seats (14).

6. The license plate recognition device against strong light interference according to claim 5 is characterized in that: Adjustment gears (16) are connected to the rotating shafts at both ends of the shading plate (15), and the adjustment gears (16) are meshed with the racks (19) on the upper side of the moving seat (14).

7. The license plate recognition device against strong light interference according to claim 6 is characterized in that: The movable seat (14) is provided with a limiting groove (18), and a rack (19) is slidably connected in the limiting groove (18).

8. The license plate recognition device against strong light interference according to claim 7, characterized in that: A hydraulic rod (20) is installed on one side of the movable seat (14), and a piston end of the hydraulic rod (20) is connected to one end of a rack (19).

9. The license plate recognition device against strong light interference according to claim 8, characterized in that: A screw rod (13) is rotatably arranged in one of the slide grooves (12), and the screw rod (13) is threadedly connected to the movable seat (14).

10. The license plate recognition device against strong light interference according to claim 9, characterized in that: A scraper (17) is provided on the lower side of the shading plate (15), and the lower side of the scraper (17) is in contact with the upper side of the outer cover (11).

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