Intelligent license plate recognition device

Abstract

The utility model discloses an intelligent license plate recognition device, and relates to the license plate recognition technical field, the device comprises a fixed box and a mobile box 2, the upper part in the fixed box is provided with a positive and negative rotation motor 1, the output end of the positive and negative rotation motor 1 is connected with a driving shaft 1, the outside of the driving shaft 1 is connected with a swing rod 1, and the swing rod 1 is connected with a swing rod 2; the right end of the first swing rod is connected with a third swing rod through a rotating shaft, a second transmission shaft is arranged on the surface of the third swing rod in a penetrating mode, the second moving box is arranged at the rear end of the second transmission shaft, a camera is installed in the middle of the second moving box, and a water scraping assembly is arranged at the rear end of the second moving box. According to the intelligent license plate recognition device, a second forward and reverse rotation motor drives a second driving shaft and a first swing arm to rotate, the first swing arm drives a second swing arm to rotate to cause a sliding frame to longitudinally move relative to the exterior of a supporting column, namely rainwater and dust at a camera lens are scraped away through a scraping strip, and the view field of the camera working in rainy days is enlarged; and the missing report rate of rainy day scene identification is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of license plate recognition, in particular to an intelligent license plate recognition device. Background Technique

[0002] In recent years, with the booming development of the national economy, the accelerating urbanization process, the continuous growth of the public's economic income, and the continuous decline of the price of motor vehicles, civilian cars have gradually become a means of transportation for urban self-driving travel from the past luxury positioning. The urban motor vehicle ownership has increased rapidly, increasing the demand for community parking lots and public parking lots. License plate recognition devices are required for both community parking lots and public parking lots to manage the vehicles entering and leaving.

[0003] For example, the utility model with the application number CN202021103596.5 discloses a license plate intelligent recognition device. By designing the camera below the connecting rod, the recognition area of the camera is wider. At the same time, a fixed box is designed to retract the camera into the fixed box when the car passes by, protecting the camera from being scratched. At the same time, a connecting frame is designed so that when the power is cut off, the connecting rod and the rotating rod can be rotated manually to allow the car to pass through. However, the camera is exposed to the external environment for a long time and is prone to surface dirt on the camera when it rains, affecting the normal use of the camera.

[0004] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and an intelligent license plate recognition device is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to provide an intelligent license plate recognition device to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: An intelligent license plate recognition device includes a fixed box and a second moving box. Above the inside of the fixed box, a first forward and reverse motor is installed, and the output end of the first forward and reverse motor is connected to a first drive shaft. A first swing rod is connected to the outside of the first drive shaft, and the right end of the first swing rod is connected to a third swing rod through a rotating shaft. A second drive shaft passes through the surface of the third swing rod. The second moving box is arranged at the rear end of the second drive shaft, and a camera is installed in the middle of the second moving box. A wiper assembly is arranged at the rear end of the second moving box, and the wiper assembly includes a support column, a sliding frame, a wiper strip, a second forward and reverse motor, a second drive shaft, a first swing arm and a second swing arm. The sliding frame is slidably arranged on the outside of the support column, and the wiper strip is arranged on the inside of the sliding frame. A second forward and reverse motor is installed in the middle of the rear end of the second moving box, and the output end of the second forward and reverse motor is connected to a second drive shaft. A first swing arm is connected to the outside of the second drive shaft, and the other end of the first swing arm is connected to a second swing arm through a rotating shaft. A rain drop sensor is arranged on the top of the sliding frame.

[0007] Further, a second swing rod is arranged outside the first swing rod, and a first transmission shaft penetrates through the surface of the second swing rod.

[0008] Further, the right end of the second swing rod is connected to a fourth swing rod through a rotating shaft, and a third transmission shaft penetrates through the surface of the fourth swing rod.

[0009] Further, a fifth swing rod is connected to the right side of the third swing rod, and a fourth transmission shaft penetrates through the surface of the fifth swing rod. A sixth swing rod is connected to the right side of the fourth swing rod, and a fifth transmission shaft penetrates through the surface of the sixth swing rod.

[0010] Further, the right end of the fifth swing rod is connected to a seventh swing rod through a rotating shaft, and a sixth transmission shaft penetrates through the middle of the seventh swing rod.

[0011] Further, the right end of the sixth swing rod is connected to an eighth swing rod through a rotating shaft, and a seventh transmission shaft penetrates through the surface of the eighth swing rod. The rear end of the seventh transmission shaft is connected to a first moving box.

[0012] Further, rollers are installed below the rear ends of the first moving box and the second moving box, and the side surface of the second moving box is in an L-shaped structure.

[0013] Further, the second transmission shaft, the third transmission shaft, the fourth transmission shaft, and the fifth transmission shaft are all rotationally connected to the second moving box, and the sixth transmission shaft and the seventh transmission shaft are all rotationally connected to the first moving box.

[0014] The utility model provides an intelligent license plate recognition device, which has the following beneficial effects:

[0015] 1. In the utility model, the forward and reverse motor two drives the drive shaft two and the swing arm one to rotate. The swing arm one drives the swing arm two to rotate, causing the sliding frame to make a longitudinal displacement outside the pillar. That is, the rainwater and dust on the camera lens are scraped off by the scraping strip, increasing the field of view of the camera in rainy days and reducing the false negative rate of scene recognition in rainy days.

[0016] 2. In the utility model, since one ends of the first swing rod, the second swing rod, the third swing rod, the fourth swing rod, the fifth swing rod, the sixth swing rod, the seventh swing rod, and the eighth swing rod are all in a gear shape, when the forward and reverse motor one drives the drive shaft one and the first swing rod to rotate counterclockwise, the second swing rod rotates clockwise along the outside of the first transmission shaft. The rotation of the first swing rod and the second swing rod causes the third swing rod and the fourth swing rod to rotate, and drives the fifth swing rod and the sixth swing rod to drive the seventh swing rod and the eighth swing rod to rotate. That is, the fixed box, the first moving box, and the second moving box are folded so that the vehicle can pass through. Description of the Drawings

[0017] Figure 1This is the overall unfolded structural schematic diagram of an intelligent license plate recognition device of the present utility model;

[0018] Figure 2 This is the rear view three-dimensional structural schematic diagram of a wiper assembly of an intelligent license plate recognition device of the present utility model;

[0019] Figure 3 This is the overall folded structural schematic diagram of an intelligent license plate recognition device of the present utility model.

[0020] In the figure: 1, fixed box; 2, first forward and reverse motor; 3, first drive shaft; 4, first swing rod; 5, second swing rod; 6, first transmission shaft; 7, third swing rod; 8, second transmission shaft; 9, fourth swing rod; 10, third transmission shaft; 11, fifth swing rod; 12, fourth transmission shaft; 13, sixth swing rod; 14, fifth transmission shaft; 15, seventh swing rod; 16, sixth transmission shaft; 17, eighth swing rod; 18, seventh transmission shaft; 19, first moving box; 20, second moving box; 21, roller; 22, camera; 23, wiper assembly; 2301, support pillar; 2302, sliding frame; 2303, wiper strip; 2304, second forward and reverse motor; 2305, second drive shaft; 2306, first swing arm; 2307, second swing arm; 24, rain drop sensor. Specific embodiments

[0021] The following further describes in detail the embodiments of the present utility model in conjunction with the drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0022] As Figure 1 and Figure 2As shown in the figure, an intelligent license plate recognition device includes a fixed box 1 and a second moving box 20. Above the interior of the fixed box 1, a forward and reverse motor 1 is installed, and the output end of the forward and reverse motor 1 is connected to a first drive shaft 3. The outside of the first drive shaft 3 is connected to a first swing rod 4, and the right end of the first swing rod 4 is connected to a third swing rod 7 through a rotating shaft. A second drive shaft 8 passes through the surface of the third swing rod 7. The second moving box 20 is arranged at the rear end of the second drive shaft 8, and a camera 22 is installed in the middle of the second moving box 20. A wiper assembly 23 is arranged at the rear end of the second moving box 20, and the wiper assembly 23 includes a support column 2301, a sliding frame 2302, a wiper strip 2303, a forward and reverse motor 2 2304, a second drive shaft 2305, a first swing arm 2306 and a second swing arm 2307. The outside of the support column 2301 is slidably provided with the sliding frame 2302, and the wiper strip 2303 is arranged inside the sliding frame 2302. A forward and reverse motor 2 2304 is installed in the middle of the rear end of the second moving box 20, and the output end of the forward and reverse motor 2 2304 is connected to the second drive shaft 2305. The outside of the second drive shaft 2305 is connected to the first swing arm 2306, and the other end of the first swing arm 2306 is connected to the second swing arm 2307 through a rotating shaft. A rain drop sensor 24 is arranged at the top of the sliding frame 2302.

[0023] The specific operation is as follows: The forward and reverse motor 2 2304 drives the second drive shaft 2305 and the first swing arm 2306 to rotate. The rotation of the first swing arm 2306 drives the second swing arm 2307 to rotate, causing the sliding frame 2302 to make a longitudinal displacement outside the support column 2301, that is, using the wiper strip 2303 to scrape off the rain and dust on the lens of the camera 22, increasing the viewing field of the camera 22 in rainy days and reducing the false negative rate of scene recognition in rainy days.

[0024] As Figure 1 and Figure 3As shown in the figure, a second swing rod 5 is arranged outside the first swing rod 4. A first transmission shaft 6 penetrates through the surface of the second swing rod 5. The right end of the second swing rod 5 is connected to a fourth swing rod 9 through a rotating shaft. A third transmission shaft 10 penetrates through the surface of the fourth swing rod 9. A fifth swing rod 11 is connected to the right side of the third swing rod 7. A fourth transmission shaft 12 penetrates through the surface of the fifth swing rod 11. A sixth swing rod 13 is connected to the right side of the fourth swing rod 9. A fifth transmission shaft 14 penetrates through the surface of the sixth swing rod 13. The right end of the fifth swing rod 11 is connected to a seventh swing rod 15 through a rotating shaft. A sixth transmission shaft 16 penetrates through the middle of the seventh swing rod 15. The right end of the sixth swing rod 13 is connected to an eighth swing rod 17 through a rotating shaft. A seventh transmission shaft 18 penetrates through the surface of the eighth swing rod 17. The rear end of the seventh transmission shaft 18 is connected to a first moving box 19. Rollers 21 are installed below the rear ends of the first moving box 19 and the second moving box 20. The side of the second moving box 20 is in an L-shaped structure. The second transmission shaft 8, the third transmission shaft 10, the fourth transmission shaft 12, and the fifth transmission shaft 14 are all rotationally connected to the second moving box 20. The sixth transmission shaft 16 and the seventh transmission shaft 18 are both rotationally connected to the first moving box 19.

[0025] The specific operation is as follows. Since one end of each of the first swing rod 4, the second swing rod 5, the third swing rod 7, the fourth swing rod 9, the fifth swing rod 11, the sixth swing rod 13, the seventh swing rod 15, and the eighth swing rod 17 is in a gear shape, when the first reversing motor 2 drives the first drive shaft 3 and the first swing rod 4 to rotate counterclockwise, it causes the second swing rod 5 to rotate clockwise along the outside of the first transmission shaft 6. The rotation of the first swing rod 4 and the second swing rod 5 causes the third swing rod 7 and the fourth swing rod 9 to rotate, and drives the fifth swing rod 11 and the sixth swing rod 13 to drive the seventh swing rod 15 and the eighth swing rod 17 to rotate, that is, the fixed box 1, the first moving box 19, and the second moving box 20 are closed so that the vehicle can pass through.

[0026] In summary, when the intelligent license plate recognition device is in use, first, the front vehicle is photographed by the camera 22. The display screen configured on the second moving box 20 immediately displays the license plate information of the photographed vehicle for the driver to check. After the information is registered, the first reversing motor 2 is operated. The first reversing motor 2 drives the first drive shaft 3 and the first swing rod 4 to rotate counterclockwise. The first swing rod 4 drives the second swing rod 5 to drive the first transmission shaft 6 to rotate. The first swing rod 4 and the second swing rod 5 with opposite rotation directions respectively drive the third swing rod 7 and the fourth swing rod 9 to rotate, causing the fifth swing rod 11 and the sixth swing rod 13 to rotate, and the seventh swing rod 15 and the eighth swing rod 17 to rotate synchronously with them, that is, the fixed box 1, the first moving box 19, and the second moving box 20 are adjusted from the Figure 1 expanded state shown in the figure to the Figure 3 closed state shown in the figure to facilitate vehicle passage;

[0027] After the vehicle passes, the forward and reverse motor 1 operates to drive the drive shaft 1 and the swing rod 1 to rotate clockwise. The swing rod 1 drives the swing rod 2 to drive the transmission shaft 1 to rotate. The clockwise rotating swing rod 1 and the counterclockwise rotating swing rod 2 drive the swing rod 3 and the swing rod 4 to rotate respectively, causing the swing rod 5 and the swing rod 6 to rotate, and making the swing rod 7 and the swing rod 8 rotate synchronously with them. The rollers 21 on the moving box 1 and the moving box 2 roll on the ground until the fixed box 1, the moving box 1 and the moving box 2 are adjusted from the retracted state as shown in Figure 3 to the deployed state as shown in Figure 1 to identify the license plate of the next vehicle;

[0028] During the use of the device, the rain drop sensor 24 will collect rain information to control the forward and reverse motor 2 to drive the drive shaft 2 and the swing arm 1 to rotate when it rains. The swing arm 1 drives the swing arm 2 to rotate, causing the sliding box 2 to make a longitudinal displacement outside the pillar 1, that is, using the wiper 3 to scrape the rain and dust on the lens of the camera 22 to ensure the normal use of the camera 22.

[0029] The embodiments of the present invention are given for purposes of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better explain the principles of the invention and its practical application, and to enable those of ordinary skill in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. An intelligent license plate recognition device, comprising a fixed box (1) and a second moving box (20), characterized in that, Above the interior of the fixed box (1), a forward and reverse motor one (2) is installed, and the output end of the forward and reverse motor one (2) is connected to a drive shaft one (3). A swing rod one (4) is connected to the outside of the drive shaft one (3), and the right end of the swing rod one (4) is connected to a swing rod three (7) through a rotating shaft. A drive shaft two (8) passes through the surface of the swing rod three (7). The moving box two (20) is arranged at the rear end of the drive shaft two (8), and a camera (22) is installed in the middle of the moving box two (20). A wiper assembly (23) is arranged at the rear end of the moving box two (20), and the wiper assembly (23) includes a support column (2301), a sliding frame (2302), a wiper strip (2303), a forward and reverse motor two (2304), a drive shaft two (2305), a swing arm one (2306) and a swing arm two (2307). The outside of the support column (2301) is slidably provided with a sliding frame (2302), and a wiper strip (2303) is arranged inside the sliding frame (2302). A forward and reverse motor two (2304) is installed in the middle of the rear end of the moving box two (20), and the output end of the forward and reverse motor two (2304) is connected to a drive shaft two (2305). A swing arm one (2306) is connected to the outside of the drive shaft two (2305), and the other end of the swing arm one (2306) is connected to a swing arm two (2307) through a rotating shaft. A rain drop sensor (24) is arranged at the top of the sliding frame (2302).

2. The intelligent license plate recognition device according to claim 1, wherein A swing rod two (5) is arranged outside the swing rod one (4), and a drive shaft one (6) passes through the surface of the swing rod two (5).

3. An intelligent license plate recognition device according to claim 2, characterized in that, The right end of the swing rod two (5) is connected to a swing rod four (9) through a rotating shaft, and a drive shaft three (10) passes through the surface of the swing rod four (9).

4. An intelligent license plate recognition device according to claim 3, wherein, A swing rod five (11) is connected to the right side of the swing rod three (7), and a drive shaft four (12) passes through the surface of the swing rod five (11). A swing rod six (13) is connected to the right side of the swing rod four (9), and a drive shaft five (14) passes through the surface of the swing rod six (13).

5. An intelligent license plate recognition device according to claim 4, characterized in that, The right end of the swing rod five (11) is connected to a swing rod seven (15) through a rotating shaft, and a drive shaft six (16) passes through the middle of the swing rod seven (15).

6. An intelligent license plate recognition device according to claim 5, characterized in that, The right end of the swing rod six (13) is connected to a swing rod eight (17) through a rotating shaft, and a drive shaft seven (18) passes through the surface of the swing rod eight (17). The rear end of the drive shaft seven (18) is connected to a moving box one (19).

7. An intelligent license plate recognition device according to claim 6, characterized in that, Rollers (21) are installed below the rear ends of the moving box one (19) and the moving box two (20), and the side of the moving box two (20) is in an L-shaped structure.

8. An intelligent license plate recognition device according to claim 6, characterized in that, The drive shaft two (8), the drive shaft three (10), the drive shaft four (12) and the drive shaft five (14) are all rotationally connected to the moving box two (20), and the drive shaft six (16) and the drive shaft seven (18) are all rotationally connected to the moving box one (19).

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