CN219590946U

CN219590946U - Unmanned parking area access & exit license plate recognition device

Info

Publication number: CN219590946U
Application number: CN202223609226.0U
Authority: CN
Inventors: 王安娜; 王晓彤; 孙婷婷
Original assignee: Shandong Jinyu Information Technology Group Co Ltd
Current assignee: Shandong Jinyu Information Technology Group Co Ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-08-25
Anticipated expiration: 2032-12-27

Abstract

The utility model discloses a license plate recognition device for an entrance of an unattended parking lot, which is characterized in that a turnover plate is arranged on a cover, the turnover plate is connected with a driving mechanism back to a lens surface, a cleaning mechanism is arranged close to the lens surface, the cleaning mechanism comprises a cleaning piece, the driving mechanism is connected with a controller, the controller controls the driving mechanism to act, so that the turnover plate is gradually turned close to transparent glass until the cleaning piece is attached to the transparent glass, the transparent glass is cleaned by the cleaning mechanism to finish cleaning operation, especially in rainy days, foggy days or dust days, a glass mirror surface is clearer, photographing definition is improved, license plate recognition rate is improved, an unattended parking factory can be more independent of assistance of staff, and the license plate recognition device is more convenient and intelligent.

Description

Unmanned parking area access & exit license plate recognition device

Technical Field

The utility model belongs to the technical field of license plate recognition devices, and particularly relates to an unattended parking lot entrance and exit license plate recognition device.

Background

In parking lot management, in order to improve the traffic efficiency of vehicles at the entrance and exit, license plate recognition is aimed at vehicles (such as monthly trucks and vehicles passing freely in the interior) without parking fee collection, an unattended rapid channel is built, the access experience of card taking and parking is avoided, and the management mode of the access parking lot is changed. The general unattended parking lot can basically realize no-parking service in traffic through a video recognition license plate technology; the parking lot does not need to be accessed by a customer, does not need to be charged or changed manually, greatly saves the time of the customer, and improves the passing rate of entering and exiting the parking lot.

The existing common license plate recognition device generally comprises a base, an upright post, a display control integrated machine and a license plate recognition camera, wherein the license plate recognition camera is fixed at the upper end of the display control integrated machine, a vehicle is enabled to pass through a region of a ground magnetic induction line, the license plate recognition camera is used for capturing the license plate of an import and export vehicle, picture comparison is extracted, whether the vehicle is released or not is judged, the license plate recognition system has high requirements on the whole system, the license plate recognition device is arranged outdoors, the recognition rate is greatly influenced by the external environment, such as rainy days, particularly weather with weather, rainwater can fall on a camera protection glass surface, dust is easy to adhere to a glass mirror surface in high-dust weather, water vapor is easy to adhere to the mirror surface and the like, the captured image is true and fuzzy and cannot be recognized, and a soft rag is required to wipe a lens at this time, so the license plate recognition device capable of automatically cleaning the mirror surface of the camera is required.

Disclosure of Invention

The utility model provides a license plate recognition device for an entrance of an unattended parking lot, which aims to solve at least one of the technical problems. Through improving license plate recognition device, but install the wiper mechanism of self-cleaning camera protection mirror surface additional, clear up the steam on the protection mirror surface, dust lamp shelter from the thing to the definition that the reinforcing camera was photographed improves the recognition rate.

In order to achieve the above purpose, the utility model provides a license plate recognition device for an entrance and an exit of an unattended parking lot, which comprises a stand column base, a license plate recognition camera and a display screen, wherein the license plate recognition camera is arranged on the stand column base and is electrically connected with the stand column base, the license plate recognition camera comprises a case and a cover, a camera body is arranged in the case, transparent glass is arranged at the front end of the case, and the camera body photographs through the transparent glass;

the machine cover is provided with a turnover plate, the turnover plate is connected with a driving mechanism back to the lens surface, the driving mechanism is connected with a controller, the controller controls the driving mechanism to act, the turnover plate is close to or far away from the transparent glass, the turnover plate is close to the lens surface and is provided with a cleaning mechanism, the cleaning mechanism comprises a cleaning piece, when the turnover plate is turned over and pressed close to the transparent glass, the cleaning piece contacts the surface of the transparent glass, and the transparent glass is cleaned.

Above-mentioned structure, the camera body sets up in quick-witted case front end position, and take a picture through the optical transparent glass of machine case front end, for current common license plate recognition device structure, through set up the roll-over plate at the lid, the drive mechanism is connected to the roll-over plate back camera lens face, be close to the camera lens face and set up wiper mechanism, wiper mechanism includes the clearance piece, the controller is connected to the drive mechanism, controller control drive mechanism action, make the roll-over plate upset be close to transparent glass gradually until clearance piece laminating transparent glass, wiper mechanism action makes transparent glass be cleared up by the clearance piece, thereby accomplish the clearance operation, especially in rainy day, foggy day or dust, make the glass mirror face more clear, improve and take a picture the definition, be favorable to improving license plate recognition rate, make unmanned on duty parking factory accomplish the assistance that does not rely on the staff more, it is more intelligent.

In a preferred embodiment, the flip plate is connected to the cover by a spring hinge.

The turnover plate is connected with the cover through the spring hinge, and the structural design is reasonable.

In a preferred implementation mode, the driving mechanism comprises a driving motor, a traction wire, a reel and a steering pulley block, the reel is connected with the output end of the driving motor, the turnover plate is provided with a pull ring, one end of the traction wire bypasses the reel, one end of the traction wire passes through the steering pulley block and is connected with the pull ring, and the driving motor acts to enable the reel to take up wires, so that the turnover plate attached to the transparent glass rotates.

The initial state of the turnover plate is set to be close to a mirror surface, a winding wheel is connected through a driving motor to rotate and take up, a pull ring of the turnover plate is pulled by a traction wire, force steering is carried out through a steering pulley block, the turnover plate can rotate and gradually keep away from transparent glass, the initial state can be set, an existing laser infrared triggering mode of a triggering signal of a controller can be set, a laser sensor is arranged at a proper position of a doorway and slightly far away from a geomagnetic sensing line area, a vehicle is firstly irradiated by the laser sensor and then turns over, photographing triggering is carried out through the geomagnetic sensing line, the controller is connected with signals of the laser sensor, the driving motor is controlled to work so that the turnover plate rotates without influencing photographing, after photographing is finished, the turnover plate returns to the initial position, the glass mirror surface is cleaned, and the controller is connected with a timing relay module in a mode that the turnover plate is kept away from the mirror surface in the initial state, the driving mechanism is controlled to act gradually close to the transparent glass for one time at intervals, and therefore clear cleaning of the transparent glass can be ensured. The control circuit for controlling the motor or the motor to perform timing action or receiving the signal of the infrared sensor and the control circuit for receiving the signal of the infrared sensor are all in the prior art, and are widely applied to the field of mechanical driving with feedback information, such as opening and closing a door of a hall, and as can be understood by a person skilled in the art, the two modes can be selected, the controller can purchase 2 paths of direct current motor driving modules to perform forward and reverse PWM speed regulation, the driving motor can purchase a mini L298N motor, and the cost is low.

In a preferred implementation mode, the cleaning mechanism further comprises a driving motor, a roll shaft and a belt, the turnover plate is provided with a motor mounting groove and a shaft roll frame, the driving motor is connected with the shaft roll, the belt is wound around the shaft roll, the cleaning piece is mounted on the surface of the belt, the driving motor is connected with a controller, and the controller controls the driving motor to act so that the belt rotates to drive the cleaning piece to rotate.

The cleaning mechanism is arranged into a small driving motor, a shaft roller and a belt, cleaning pieces are arranged on the belt, the cleaning pieces are miniaturized by simply rotating the conveying mechanism, the driving motor is connected with the controller, the cleaning mechanism and the driving motor of the cleaning mechanism can be simultaneously or successively operated, and the cleaning can be completed after the overturning plate is overturned to be close to the glass mirror surface, the driving motor can work for a few seconds, and the design is more reasonable.

In a preferred implementation, the cleaning member is a flexible cotton yarn.

The effect of cleaning glass by the flexible cotton yarn is better, and the flexible cotton yarn is wound on one circle or one part of the belt.

In the preferred implementation mode, the novel glass spraying device further comprises a spraying device, the spraying device comprises a spraying box and a spraying pipe, the spraying pipe is embedded in the side wall of the cover, a spray head is arranged on the spraying pipe, the spray head faces to the transparent glass, a miniature pump body is arranged in the spraying box, and the miniature pump body is controlled by the controller.

If transparent glass adheres to the grease of difficult abluent, filth such as bird's droppings, be difficult for the sanitization, the miniature pump body through spray set will spray the interior cleaning solution of box through shower and the shower nozzle towards the glass mirror surface this moment by the controller signal action, spouts to the glass mirror surface, then carries out the upset board cleaning operation of wiper mechanism to make the washing cleaner.

In a preferred implementation manner, the side wall of the cover is provided with a protrusion, the outer side wall of the case is provided with a groove, and the protrusion and the groove are matched to enable the cover to be detachably connected with the case.

The disassembly is convenient, and the maintenance of equipment is convenient.

In the preferred implementation mode, a storage battery, a license plate recognition main control board and a light supplementing lamp driving board are further arranged in the case. The internal structure of the existing license plate recognition camera is provided.

In a preferred implementation, the upright base is further provided with a light supplement lamp.

The light filling lamp improves the effect of shooing under the dim environment.

The structure has the following beneficial effects:

1. through setting up the upset board at the cover, the upset board is connected actuating mechanism against the camera lens face, be close to the camera lens face and set up wiper mechanism, wiper mechanism includes clearance piece, actuating mechanism connection director, the action of controller control actuating mechanism makes the upset board upset be close to transparent glass gradually until clearance piece laminating transparent glass, the wiper mechanism action makes transparent glass by clearance piece clearance to accomplish the cleaning operation, especially in rainy day, foggy day or dust, make the glass mirror surface more clear, improve and shoot the definition, be favorable to improving license plate recognition rate, make unmanned on duty parking factory more accomplish independent staff's assistance, more intelligent.

2. The cleaning mechanism is arranged into a small driving motor, a shaft roller and a belt, cleaning pieces are arranged on the belt, the cleaning pieces are miniaturized by simply rotating the conveying mechanism, the driving motor is connected with the controller, the cleaning mechanism and the driving motor of the cleaning mechanism can be simultaneously or successively operated, and the cleaning can be completed after the overturning plate is overturned to be close to the glass mirror surface, the driving motor can work for a few seconds, and the design is more reasonable.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic structural diagram of an exemplary embodiment of the present utility model;

FIG. 2 is a schematic structural view of an exemplary embodiment of a license plate recognition camera of the present utility model;

FIG. 3 is a schematic structural view of an exemplary embodiment of a cleaning spray device of the present utility model;

FIG. 4 is a schematic structural view of an exemplary embodiment of a housing of the present utility model;

FIG. 5 is a schematic structural view of an exemplary embodiment of a cover of the present utility model;

description of the reference numerals:

1. license plate recognition camera; 10. a chassis; 100. a groove; 11. a camera body; 12. transparent glass; 13. a storage battery; 14. license plate recognition main control board; 15. a light supplementing lamp driving plate; 17. a cover; 170. a protrusion; 18. a turnover plate; 180. a pull ring; 19. a spring hinge;

2. a driving mechanism; 20. a driving motor; 21. a traction wire; 22. a reel; 23. a steering pulley block;

3. a cleaning mechanism; 30. a drive motor; 31. a shaft roller; 32. a belt; 33. a motor mounting groove; 34. a shaft roller frame; 35. cleaning the piece;

4. a spraying device; 40. a spray box; 400. a miniature pump body; 41. a shower pipe; 410. a spray head;

5. a controller;

6. a display screen; 7. a column base; 8. and a light supplementing lamp.

Detailed Description

In order to more clearly illustrate the general inventive concept, reference will be made in the following detailed description, by way of example, to the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than as described herein, and therefore the scope of the present utility model is not limited by the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. However, it is noted that a direct connection indicates that two bodies connected together do not form a connection relationship by an excessive structure, but are connected to form a whole by a connection structure. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The description as it relates to "first", "second", etc. in the present utility model is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

As shown in fig. 1-5, the utility model provides a license plate recognition device for an entrance and an exit of an unattended parking lot, which comprises a stand column base 7, and a license plate recognition camera 1 and a display screen 6 which are arranged on the stand column base 7 and are electrically connected, wherein the license plate recognition camera 1 comprises a case 10 and a cover 17, a camera body 11 is arranged in the case 10, transparent glass 12 is arranged at the front end of the case 10, and the camera body 11 photographs through the transparent glass 12;

the cover 17 is provided with a turnover plate 18, the turnover plate 18 is connected with the driving mechanism 2 back to the lens surface, the driving mechanism 2 is connected with the controller 5, the controller 5 controls the driving mechanism 2 to act, the turnover plate 18 is close to or far away from the transparent glass 12, the lens surface of the turnover plate 18 is provided with the cleaning mechanism 3, the cleaning mechanism 3 comprises a cleaning piece 35, and when the turnover plate 18 is turned over and is close to the transparent glass 12, the cleaning piece 35 contacts the surface of the transparent glass 12 to clean the transparent glass 12.

Above-mentioned structure, camera body 11 sets up in quick-witted case 10 front end position, and take a picture through the optical transparent glass 12 of machine case 10 front end, for current common license plate recognition device structure, through set up roll-over plate 18 at the cover 17, roll-over plate 18 is connected actuating mechanism 2 dorsad the camera face, be close to the camera face and set up wiper mechanism 3, wiper mechanism 3 includes clearance piece 35, actuating mechanism 2 connection director 5, the action of actuating mechanism 2 is controlled to the controller 5, make roll-over plate 18 upset gradually be close to transparent glass 12 until clearance piece 35 laminating transparent glass 12, wiper mechanism 3 action makes transparent glass 12 be cleared up by clearance piece 35, thereby accomplish the cleaning operation, especially in rainy day, foggy day or dust, make the glass mirror face more clear, improve and take a picture the definition, be favorable to improving license plate recognition rate, make unmanned parking factory accomplish the assistance independent of staff more intelligent.

As a preferred embodiment of the present utility model, as shown in fig. 2, the roll-over panel 18 is connected to the cover 17 by a spring hinge 19.

The turnover plate 18 is connected with the cover 17 through a spring hinge 19, and the structural design is reasonable.

As a preferred example of the present embodiment, as shown in fig. 3, the driving mechanism 2 includes a driving motor 20, a traction wire 21, a reel 22 and a turning pulley block 23, the reel 22 is connected to the output end of the driving motor 20, the turning plate 18 is provided with a pull ring 180, one end of the traction wire 21 bypasses the reel 22, the other end is connected to the pull ring 180 through the turning pulley block 23, and the driving motor 20 acts to wind up the reel 22, so that the turning plate 18 attached to the transparent glass 12 rotates.

The initial state of the turnover plate 18 is set to be close to a mirror surface, the winding wheel 22 is connected through the driving motor 20 to rotate and take up, the pull ring 180 of the turnover plate 18 is pulled by the pulling wire 21, the turnover plate 18 can rotate gradually to be far away from the transparent glass 12 through the steering pulley block 23 for force steering, the initial state can be set to be a trigger signal of the controller 5, an existing laser infrared triggering mode is set, the laser sensor is set at a proper position of a doorway and is slightly far away from a geomagnetic sensing area, the vehicle is firstly irradiated by the laser sensor, then the vehicle is turned over, photographing is conducted through the geomagnetic sensing line, the controller 5 is connected with a signal of the laser sensor, the driving motor 20 is controlled to work so that the turnover plate 18 rotates, photographing is not affected, the turnover plate 18 returns to the initial position after photographing is completed, the glass mirror surface is cleaned, and the mode is also adopted that the turnover plate 18 is in the initial state to be a position far away from the mirror surface, the controller 5 is set to be connected with a timing relay module, the controller 5 is enabled to be a certain time interval, the driving mechanism 2 is controlled to act so that the turnover plate 18 is gradually close to the transparent glass 12, and clear cleaning of the transparent glass 12 is ensured at regular time. The control circuit and the principle for controlling the motor or the motor to perform timing action or receiving the infrared sensor signal are all the prior art, and are widely applied to the field of mechanical driving with feedback information, such as automatic door opening and closing in a hall, and the utility model can be understood by a person in the field, so that the utility model does not perform circuit drawing and displaying, the two modes can be selected, the controller 5 can purchase 2 paths of direct current motor driving modules to perform forward and reverse PWM speed regulation, the driving motor 20 can purchase a mini L298N motor, the cost is low, and the cost of a control device is low.

As a preferred embodiment of the present utility model, the cleaning mechanism 3 further includes a driving motor 30, a roller shaft 31 and a belt 32, the turnover plate 18 is provided with a motor mounting groove 33 and a shaft roller frame 34, the driving motor 30 is connected with the shaft roller 31, the belt 32 is wound around the shaft roller 31, the cleaning member 35 is mounted on the surface of the belt 32, the driving motor 30 is connected with the controller 5, and the controller 5 controls the driving motor 30 to act so that the belt 32 rotates to drive the cleaning member 35 to rotate.

The cleaning mechanism 3 is provided with a small driving motor 30, a shaft roller 31 and a belt 32, the belt 32 is provided with a cleaning piece 35, the cleaning piece is miniaturized by simply rotating the conveying mechanism, the driving motor 30 is connected with the controller 5, the cleaning mechanism can be simultaneously or successively operated with the driving motor 20 of the cleaning mechanism 3, and particularly, after the overturning plate 18 is overturned to be close to the glass mirror surface, the driving motor 30 works for a few seconds to complete cleaning, so that the design is more reasonable.

Further, the cleaning member 35 is a flexible cotton yarn.

The flexible cotton yarn provides better glass cleaning and allows it to be wrapped around one or a portion of the belt 32.

As a preferred embodiment of the present utility model, as shown in fig. 3, the present utility model further comprises a spraying device 4, the spraying device 4 comprises a spraying box 40 and a spraying pipe 41, the spraying pipe 41 is embedded in the side wall of the cover 17, the spraying pipe 41 is provided with a spray head 410, the spray head 410 is arranged towards the transparent glass 12, the spraying box 40 is internally provided with a micro pump body 400, and the micro pump body 400 is controlled by the controller 5.

If the transparent glass 12 is adhered with grease, bird droppings and other dirt which are difficult to clean, the cleaning liquid in the spray box 40 is sprayed to the glass mirror surface through the spray pipe 41 and the spray head 410 facing the glass mirror surface by the signal action of the controller 5 through the miniature pump body 400 of the spray device 4, then the cleaning operation of the turnover plate 18 of the cleaning mechanism 3 is carried out, so that the cleaning is cleaner, the triggering of the spray device can also adopt a timer, the spraying is carried out once at intervals, and the principle is not repeated,

as a preferred embodiment of the present utility model, as shown in fig. 4 and 5, the side wall of the cover 17 is provided with a protrusion 170, and the outer side wall of the case 10 is provided with a recess 100. The protrusion 170 and the recess 100 cooperate to detachably connect the cover 17 and the case 10.

The disassembly is convenient, and the maintenance of equipment is convenient.

As a preferred implementation mode of the utility model, a storage battery 13, a license plate recognition main control board 14 and a light supplementing lamp 8 driving board 15 are also arranged in the case 10, so that the license plate recognition principle and structure of the utility model are existing, and the integrity of the structure is ensured, as can be understood by a person skilled in the art.

As a preferred embodiment of the present utility model, the column base 7 is further provided with a light supplement lamp 8.

The light supplementing lamp 8 improves photographing effect in a dim environment.

The utility model can be realized by adopting or referring to the prior art at the places which are not described in the utility model.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides an unmanned parking area access & exit license plate recognition device, includes stand base and sets up in stand base and electric connection's license plate recognition camera and display screen, its characterized in that, license plate recognition camera includes quick-witted case and cover, be equipped with the camera body in the quick-witted incasement, transparent glass is installed to the quick-witted case front end, the camera body sees through transparent glass is photographed;

2. The unmanned parking lot entrance license plate recognition device according to claim 1, wherein the turnover plate is connected with the cover through a spring hinge.

3. The license plate recognition device for the entrance and exit of the unattended parking lot according to claim 2, wherein the driving mechanism comprises a driving motor, a traction wire, a reel and a steering pulley block, the reel is connected with the output end of the driving motor, the turning plate is provided with a pull ring, one end of the traction wire bypasses the reel, the other end of the traction wire is connected with the pull ring through the steering pulley block, and the driving motor acts to enable the reel to take up so as to enable the turning plate attached to the transparent glass to rotate.

4. The license plate recognition device for the entrance and exit of the unattended parking lot according to claim 1, wherein the cleaning mechanism further comprises a driving motor, a roll shaft and a belt, the turnover plate is provided with a motor installation groove and a roll shaft frame, the driving motor is connected with the roll shaft, the belt is wound around the roll shaft, the cleaning piece is installed on the surface of the belt, the driving motor is connected with a controller, and the controller controls the driving motor to act so that the belt rotates to drive the cleaning piece to rotate.

5. The unmanned parking lot entrance license plate recognition device according to claim 4, wherein the cleaning member is a flexible cotton yarn.

6. The license plate recognition device for the entrance and exit of the unattended parking lot according to claim 1, further comprising a spraying device, wherein the spraying device comprises a spraying box and a spraying pipe, the spraying pipe is embedded in the side wall of the cover, a spray head is arranged on the spraying pipe, the spray head faces towards the transparent glass, a miniature pump body is arranged in the spraying box, and the miniature pump body is controlled by the controller.

7. The license plate recognition device for the entrance and exit of the unattended parking lot according to claim 1, wherein a protrusion is arranged on the side wall of the cover, a groove is arranged on the outer side wall of the case, and the protrusion and the groove are matched to enable the cover to be detachably connected with the case.

8. The license plate recognition device for the entrance and exit of the unattended parking lot according to claim 1, wherein a storage battery, a license plate recognition main control board and a light supplementing lamp driving board are further arranged in the machine case.

9. The unmanned parking lot entrance license plate recognition device according to claim 1, wherein the upright post base is provided with a light supplementing lamp.