License plate recognizer with adaptive adjustment structure

Abstract

The utility model discloses a license plate recognizer with a self-adaptive adjusting structure, which relates to the technical field of license plate automatic recognizers and comprises a base body, an adjusting assembly is arranged in the base body, and a cleaning assembly is arranged at the upper end of one side of the surface of the base body. The adjusting assembly comprises a servo motor fixedly connected to the bottom end of the inner wall of the base body. The license plate recognizer descends and extrudes the piston rod, so that air enters the fixing block through the connecting pipe, the cross rod and the wiping piece are driven to ascend under the action of air pressure until the wiping piece wipes and cleans the lens of the license plate recognizer, dust, dirt and other pollutants on the surface of the lens can be removed by wiping the lens regularly, and the cleaning efficiency is improved. And when the wiping piece needs to be replaced, the wiping piece is taken out and replaced by pushing the T-shaped block, so that the effect of cleaning the lens of the license plate recognizer is better.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic license plate recognition devices, in particular to a license plate recognition device with a self-adaptive adjustment structure. Background Art

[0002] The automatic license plate recognition device, i.e. the control system, is the hub and core component of the parking system. Through the exchange of information with the PC host, it is responsible for the processing, storage and control of the input and output information of the entire import and export control part.

[0003] The existing license plate recognition device scans the vehicle's license plate to control the entrance and exit. However, in some open-air parking lots, the camera of the external recognition device will adhere to a lot of dust and impurities after long-term use, which will affect the shooting effect to a certain extent when the license plate is scanned by the camera, and then the license plate cannot be recognized, which has a great impact on traffic. Therefore, a license plate recognition device with an adaptive adjustment structure is proposed. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a license plate recognition device with an adaptive adjustment structure to solve the technical problems raised in the above background.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a license plate reader with an adaptive adjustment structure, comprising a base body, an adjustment component is arranged inside the base body, and a cleaning component is arranged at the upper end of one side of the base body surface.

[0006] As a preferred technical solution for a license plate recognition device with an adaptive adjustment structure of the utility model, the adjustment component includes a servo motor fixedly connected to the bottom end of the inner wall of the base body, the output end of the servo motor is fixedly connected to a threaded screw, the surface of the threaded screw is rotatably connected to a movable plate, and support columns are welded on both sides of the top of the movable plate.

[0007] As a preferred technical solution of a license plate recognition device with an adaptive adjustment structure of the utility model, the front and rear ends of the movable plate are fixedly connected with sliders, and the inner wall of the base body is provided with a sliding groove that matches the slider.

[0008] As a preferred technical solution of a license plate reader with an adaptive adjustment structure of the utility model, one end of the support column passes through the top of the base body and is equipped with a license plate reader, and an infrared sensor is provided on one side of the base body, and the infrared sensor is electrically connected to the servo motor.

[0009] As a preferred technical solution for a license plate recognition device with an adaptive adjustment structure of the utility model, the cleaning component includes a shell fixedly connected to the upper end of one side of the base body, a cover plate is rotatably connected to the top of the shell, and fixed blocks are welded to the front and rear ends of the inner wall of the shell, and the inner walls of the two groups of fixed blocks are slidably connected to telescopic blocks.

[0010] As an optimal technical solution for a license plate recognition device with an adaptive adjustment structure of the utility model, a connecting tube is provided at the bottom end of the fixed block, and the end of the connecting tube away from the fixed block is connected to a piston cylinder, the inner wall of the piston cylinder is slidably connected to a piston rod, and a piston spring is sleeved on the surface of the piston rod.

[0011] As a preferred technical solution for a license plate recognition device with an adaptive adjustment structure of the utility model, a cross bar is fixedly connected to the opposite sides of the two telescopic blocks, a wiping piece is slidably connected inside the cross bar, and two groups of spring grooves are provided in the cross bar, a connecting spring is provided in the spring groove, a movable plate is fixedly connected to one side of the connecting spring, a ball is rotatably connected to the side of the movable plate away from the connecting spring, slots for matching the ball are provided at the front and rear ends of the wiping piece, and a T-block running through the cross bar is connected to one side of the wiping piece, and a reset spring is provided between the T-block and the cross bar.

[0012] As a preferred technical solution of a license plate recognition device with an adaptive adjustment structure of the utility model, a rotating shaft is fixedly connected inside the cover plate, the rotating shaft is rotationally connected to the housing, and torsion springs are provided at both ends of the rotating shaft surface.

[0013] As a preferred technical solution of a license plate recognizer with an adaptive adjustment structure of the utility model, the piston cylinder is arranged at the top end inside the base body, and the piston rod is arranged directly below the license plate recognizer.

[0014] In summary, the utility model mainly has the following beneficial effects:

[0015] 1. The utility model makes the license plate recognizer descend and squeeze the piston rod, so that the gas enters the interior of the fixed block through the connecting pipe, and drives the cross bar and the wiping piece to rise under the action of the air pressure until the wiping piece wipes and cleans the lens of the license plate recognizer. By wiping the lens regularly, dust, dirt and other pollutants on the lens surface can be removed, thereby ensuring that the license plate image captured by the recognizer is clearer and avoiding the situation where it cannot be recognized. When the wiping piece needs to be replaced, the wiping piece is taken out and replaced by pushing the T-block, which is convenient for better cleaning of the lens of the license plate recognizer.

[0016] 2. The utility model starts the servo motor to drive the threaded screw to rotate, and the threaded screw drives the moving plate to rise and fall. The moving plate drives the license plate recognizer to rise and fall synchronously through the support column. It can effectively adjust license plates of different heights and adapt to different parking scenes and vehicle types. Whether it is a small vehicle or a large vehicle, the height of the recognizer can be adjusted to ensure the best recognition effect, thereby enhancing the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the overall components of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of the interior of the base body of the utility model;

[0019] Figure 3 It is a three-dimensional schematic diagram of the cleaning component of the utility model;

[0020] Figure 4 This is a three-dimensional schematic diagram of the interior of the fixing block of the utility model;

[0021] Figure 5 It is a three-dimensional schematic diagram of the interior of the crossbar of the utility model;

[0022] Figure 6 For the utility model Figure 5 Enlarged view of point A in the middle.

[0023] In the figure: 100, base body; 110, license plate reader; 120, infrared sensor; 200, adjustment assembly; 210, servo motor; 220, threaded screw; 230, movable plate; 231, slider; 232, slide groove; 240, support column; 300, cleaning assembly; 310, shell; 320, cover plate; 321, rotating shaft; 322, torsion spring; 330, fixed block; 340, telescopic block; 350, connecting pipe; 360, piston cylinder; 370, piston rod; 380, piston spring; 390, cross bar; 391, spring groove; 3910, wiper; 3920, connecting spring; 3930, movable plate; 3940, ball bearing; 3941, slot; 3950, T-block; 3960, reset spring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0025] The following describes an embodiment of the utility model based on its overall structure.

[0026] A license plate recognition device with an adaptive adjustment structure, such as Figure 1-6 As shown, it includes a base body 100, an adjusting component 200 is arranged inside the base body 100, and a cleaning component 300 is arranged at the upper end of one side of the surface of the base body 100, the adjusting component 200 includes a servo motor 210 fixedly connected to the bottom end of the inner wall of the base body 100, a threaded screw 220 is fixedly connected to the output end of the servo motor 210, a movable plate 230 is rotatably connected to the surface of the threaded screw 220, and support columns 240 are welded on both sides of the top of the movable plate 230.

[0027] By starting the servo motor 210 to drive the threaded screw 220 to rotate, the threaded screw 220 drives the movable plate 230 to rise and fall, and the movable plate 230 drives the license plate recognizer 110 to rise and fall synchronously through the support column 240, which can effectively adjust license plates of different heights and adapt to different parking scenes and vehicle types. Whether it is a small vehicle or a large vehicle, the height of the license plate recognizer 110 can be adjusted to ensure the best recognition effect, thereby enhancing the applicability of the device.

[0028] Please refer to Figure 1 and Figure 2 The front and rear ends of the movable plate 230 are fixedly connected with a slider 231, and the inner wall of the base body 100 is provided with a slide groove 232 that matches the slider 231. One end of the support column 240 passes through the top of the base body 100 and is installed with a license plate reader 110. An infrared sensor 120 is provided on one side of the base body 100, and the infrared sensor 120 is electrically connected to the servo motor 210.

[0029] The cooperation between the slider 231 and the slide groove 232 can effectively prevent the movable plate 230 from rotating when it is lifted or lowered.

[0030] Please refer to Figures 3 to 6The cleaning assembly 300 includes a shell 310 fixedly connected to the upper end of one side of the base body 100, the top of the shell 310 is rotatably connected to a cover plate 320, and the front and rear ends of the inner wall of the shell 310 are welded with fixed blocks 330, the inner walls of the two groups of fixed blocks 330 are slidably connected to telescopic blocks 340, the bottom of the fixed block 330 is provided with a connecting pipe 350, the end of the connecting pipe 350 away from the fixed block 330 is connected to a piston cylinder 360, the inner wall of the piston cylinder 360 is slidably connected to a piston rod 370, the surface of the piston rod 370 is sleeved with a piston spring 380, and the opposite sides of the two telescopic blocks 340 are fixedly connected to a cross bar 39 0, a wiper 3910 is slidably connected inside the cross bar 390, and two sets of spring grooves 391 are provided in the cross bar 390, a connecting spring 3920 is provided in the spring groove 391, a movable plate 3930 is fixedly connected to one side of the connecting spring 3920, and a ball 3940 is rotatably connected to the side of the movable plate 3930 away from the connecting spring 3920, and a groove 3941 that matches the ball 3940 is provided at the front and rear ends of the wiper 3910, and a T-block 3950 that runs through the cross bar 390 is low-connected to one side of the wiper 3910, and a return spring 3960 is provided between the T-block 3950 and the cross bar 390.

[0031] When the lens of the license plate recognition device 110 needs to be cleaned, the license plate recognition device 110 is lowered and the piston rod 370 is squeezed, so that the piston rod 370 stretches the piston spring 380 and compresses the gas inside the piston cylinder 360, so that the gas enters the interior of the fixed block 330 through the connecting pipe 350, and the telescopic block 340 and the cross bar 390 are driven to extend from the interior of the fixed block 330 under the action of the air pressure. When the telescopic block 340 rises, it pushes the cover plate 320 and opens it, so that the telescopic block 340 drives the cross bar 390 and the wiping member 3910 to continue to rise until the wiping member 3910 wipes and cleans the lens of the license plate recognition device 110. By wiping the lens regularly, the lens surface can be removed. Dust, dirt and other contaminants are removed, thereby ensuring that the license plate image captured by the license plate recognition device 110 is clearer and avoiding the occurrence of unrecognizable situations. When the wiper 3910 needs to be replaced, the T-block 3950 is pushed to squeeze the reset spring 3960 and push the wiper 3910 out from the inside of the cross bar 390. The wiper 3910 is subjected to force through the cooperation between the slot 3941 and the ball 3940 so that the ball 3940 drives the movable plate 3930 to squeeze the connecting spring 3920, so that the ball 3940 is disengaged from the limit of the slot 3941. The wiper 3910 is then taken out for replacement, which is convenient for better cleaning of the lens of the license plate recognition device 110.

[0032] Please refer to Figure 2 and Figure 3A rotating shaft 321 is fixedly connected inside the cover plate 320, the rotating shaft 321 is rotatably connected to the housing 310, and torsion springs 322 are provided at both ends of the surface of the rotating shaft 321. The piston cylinder 360 is arranged at the top inside the base body 100, and the piston rod 370 is arranged directly below the license plate reader 110.

[0033] The cover plate 320 can effectively prevent the wiper 3910 from being exposed to the outside, and the torsion spring 322 can automatically close the cover plate 320 when it is opened.

[0034] When in use, the servo motor 210 is started to drive the threaded screw 220 to rotate, and the movable plate 230 is driven to rise and fall. The movable plate 230 drives the license plate recognizer 110 to rise and fall synchronously through the support column 240, which can effectively adjust the license plates of different heights and adapt to different parking scenes and vehicle types. Whether it is a small vehicle or a large vehicle, the height of the license plate recognizer 110 can be adjusted to ensure the best recognition effect and enhance the applicability of the device. When the lens of the license plate recognizer 110 needs to be cleaned, the license plate recognizer 110 is lowered and the piston rod 370 is squeezed to allow the gas to enter the fixed block 330 through the connecting pipe 350 , under the action of air pressure, the telescopic block 340 and the cross bar 390 are extended from the inside of the fixed block 330 until the wiping piece 3910 wipes and cleans the lens of the license plate recognizer 110. By wiping the lens regularly, dust, dirt and other contaminants on the lens surface can be removed, thereby ensuring that the license plate image captured by the license plate recognizer 110 is clearer and avoiding the occurrence of unrecognizable situations. When the wiping piece 3910 needs to be replaced, the wiping piece 3910 is taken out and replaced by pushing the T-block 3950, which facilitates better cleaning of the lens of the license plate recognizer 110. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.

[0035] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A license plate reader with an adaptive adjustment structure, comprising a base body (100), characterized in that: An adjusting component (200) is provided inside the base body (100), and a cleaning component (300) is provided at the upper end of one side of the surface of the base body (100).

2. A license plate recognition device with an adaptive adjustment structure according to claim 1, characterized in that: The adjustment assembly (200) comprises a servo motor (210) fixedly connected to the bottom end of the inner wall of the base body (100); a threaded screw (220) is fixedly connected to the output end of the servo motor (210); a movable plate (230) is rotatably connected to the surface of the threaded screw (220); and support columns (240) are welded to both sides of the top of the movable plate (230).

3. A license plate recognition device with an adaptive adjustment structure according to claim 2, characterized in that: The front and rear ends of the movable plate (230) are fixedly connected to sliders (231), and the inner wall of the base body (100) is provided with a sliding groove (232) that matches the slider (231).

4. A license plate recognition device with an adaptive adjustment structure according to claim 2, characterized in that: One end of the support column (240) passes through the top of the base body (100) and is installed with a license plate reader (110); one side of the base body (100) is provided with an infrared sensor (120); and the infrared sensor (120) is electrically connected to the servo motor (210).

5. The license plate recognition device with an adaptive adjustment structure according to claim 1, characterized in that: The cleaning assembly (300) comprises a shell (310) fixedly connected to the upper end of one side of the base body (100), the top end of the shell (310) being rotatably connected to a cover plate (320), and the front and rear ends of the inner wall of the shell (310) are both welded with fixed blocks (330), and the inner walls of two groups of the fixed blocks (330) are both slidably connected to telescopic blocks (340).

6. A license plate recognition device with an adaptive adjustment structure according to claim 5, characterized in that: A connecting tube (350) is provided at the bottom end of the fixed block (330), and one end of the connecting tube (350) away from the fixed block (330) is connected to a piston cylinder (360). A piston rod (370) is slidably connected to the inner wall of the piston cylinder (360), and a piston spring (380) is sleeved on the surface of the piston rod (370).

7. The license plate recognition device with an adaptive adjustment structure according to claim 5, characterized in that: A cross bar (390) is fixedly connected to the opposite sides of the two telescopic blocks (340), a wiping piece (3910) is slidably connected inside the cross bar (390), and two groups of spring grooves (391) are provided in the cross bar (390), a connecting spring (3920) is provided in the spring groove (391), a movable plate (3930) is fixedly connected to one side of the connecting spring (3920), and a ball (3940) is rotatably connected to the side of the movable plate (3930) away from the connecting spring (3920), the wiping piece (3910) is provided with a slot (3941) that matches the ball (3940) at the front and rear ends, and a T-block (3950) that runs through the cross bar (390) is connected to one side of the wiping piece (3910), and a reset spring (3960) is provided between the T-block (3950) and the cross bar (390).

8. The license plate recognition device with an adaptive adjustment structure according to claim 5, characterized in that: A rotating shaft (321) is fixedly connected inside the cover plate (320), the rotating shaft (321) is rotatably connected to the housing (310), and torsion springs (322) are provided at both ends of the surface of the rotating shaft (321).

9. The license plate recognition device with an adaptive adjustment structure according to claim 6, characterized in that: The piston cylinder (360) is arranged at the top end inside the base body (100), and the piston rod (370) is arranged directly below the license plate recognizer (110).

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