CN212750087U

CN212750087U - License plate recognition device for urban parking lot

Info

Publication number: CN212750087U
Application number: CN202021925415.7U
Authority: CN
Inventors: 戴苏平; 王娟
Original assignee: Nanjing Android Intelligent System Co ltd
Current assignee: Nanjing Android Intelligent System Co ltd
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-03-19
Anticipated expiration: 2030-09-04

Abstract

The application relates to a license plate recognition device for an urban parking lot, which relates to the technical field of license plate recognition of the parking lot, and the main technical scheme of the license plate recognition device comprises a mounting frame, a display screen arranged on the mounting frame and a camera arranged on the mounting frame, wherein the camera is connected with the display screen, and the mounting frame is respectively provided with a cleaning component for cleaning dust on the camera and the display screen and a driving component for driving the cleaning component to move; when a vehicle enters or exits the parking lot, the camera monitors the license plate and reads license plate information, the license plate information is transmitted to the display screen, and the display screen displays the license plate information; when the camera surface adheres to the dust, through the clean subassembly of drive assembly drive removal, thereby the adnexed dust on clean subassembly clearance camera and the display screen to this reduces the possibility that the dust is detained on the camera, reduces the possibility that the dust sheltered from the light of camera, is favorable to improving the discernment precision of camera to license plate information.

Description

License plate recognition device for urban parking lot

Technical Field

The application relates to the technical field of license plate recognition of parking lots, in particular to a license plate recognition device for urban parking lots.

Background

The license plate recognition device is a device for recognizing the license plate of a vehicle, is often used in places where vehicles frequently pass in and out, such as a parking lot, a community entrance and exit, and the like, and mainly aims to recognize and record information of the corresponding vehicle when the vehicle passes in and out.

Chinese utility model patent that the bulletin number is CN207068242U discloses an intelligence parking license plate recognition device, including the switch board, be equipped with the camera on the switch board, be equipped with advertising screen and light filling lamp on the switch board.

Aiming at the related technologies, the inventor thinks that dust is easily accumulated on the advertisement screen and the camera in the using process of the device, the traffic flow in a city parking lot is large, and when vehicles pass through, more dust is generated, and the dust is easily accumulated on the advertisement screen and the camera.

SUMMERY OF THE UTILITY MODEL

In order to reduce the possibility that dust hinders camera light, the application provides a license plate recognition device for urban parking area.

The application provides a license plate recognition device for urban parking area adopts following technical scheme:

the utility model provides a license plate recognition device for urban parking area, includes the mounting bracket, sets up the display screen on the mounting bracket and sets up the camera on the mounting bracket, the camera with the display screen is connected, be equipped with respectively on the mounting bracket with to clean the clean subassembly of dust on clean camera and the display screen and be used for driving the drive assembly that clean subassembly removed.

By adopting the technical scheme, when a vehicle enters or exits the parking lot, the camera monitors the license plate and reads license plate information, the license plate information is transmitted to the display screen, and the display screen displays the license plate information; when the camera surface adheres to the dust, through the clean subassembly of drive assembly drive removal, thereby the adnexed dust on clean subassembly clearance camera and the display screen to this reduces the possibility that the dust is detained on the camera, reduces the possibility that the dust sheltered from the light of camera, is favorable to improving the discernment precision of camera to license plate information.

Optionally, clean subassembly is including sliding the clean frame of connection on the mounting bracket, setting up cleaning roller and the cover on clean frame and establishing the cleaning pad on the cleaning roller periphery wall, clean with drive assembly is connected, be equipped with clean brush on the lateral wall of cleaning pad, clean brush with the shooting face of camera is inconsistent, the shooting face of camera with the display screen flushes mutually.

Through adopting above-mentioned technical scheme, when the clearance dust, drive assembly drives clean frame and removes, and clean frame drives the cleaning roller and removes, and cleaning roller stimulates clean pad and removes, and clean pad drives clean brush and removes, and when clean brush removed, with the shooting face of camera and the surperficial looks friction of display screen to brush the supplementary dust on the surface of camera and the surface of display screen.

Optionally, a cleaning motor is fixedly connected to the cleaning frame, a cleaning gear is fixedly connected to an output shaft of the cleaning motor, and a rotating gear meshed with the cleaning gear is fixedly connected to an end wall of the cleaning roller.

Through adopting above-mentioned technical scheme, when the clearance dust, start clean motor simultaneously, clean motor drives clean gear and rotates, and clean gear drives the running gear rotation, and running gear drives the cleaning roller again and rotates to increase the frictional force on cleaning roller and camera surface, be favorable to improving the clearance effect to the dust.

Optionally, drive assembly is including setting up driving motor on the mounting bracket, setting up the drive shaft on driving motor output shaft and fixing at the epaxial worm that drives, it is connected with the worm wheel to rotate on the mounting bracket, the worm wheel rigid coupling has drive screw, the clean epaxial drive block that is equipped with that puts up, the drive block with the mounting bracket is slided and is connected, the one end that drive screw kept away from the worm wheel is passed the drive block and with drive block threaded connection.

Through adopting above-mentioned technical scheme, when needs clearance dust, start driving motor, driving motor drives the drive shaft and rotates, and the drive shaft drives the worm and rotates, thereby the worm drives the worm wheel and rotates, and the worm wheel drives the drive lead screw again and rotates, thereby the drive lead screw drives the drive block and slides on the mounting bracket, thereby the drive block drives the clearance frame removal smoothly.

Optionally, be equipped with the clean case that is equipped with the cleaning solution on the mounting bracket, be equipped with the water pump on the clean case, the mouth that draws water of water pump with clean case communicates mutually, the rigid coupling has the spray pipe on the clean frame, be equipped with the nozzle on the side of spray pipe, the delivery port orientation of nozzle the surface of display screen.

Through adopting above-mentioned technical scheme, when clean dust, start the water pump simultaneously, the water pump is taken the cleaning solution out, pours into the spray pipe into in, and the rethread nozzle spouts to the surface of display screen, thereby the cleaning solution soaks the dust, reduces the dust and adheres to the possibility on the display screen surface, is favorable to further improving clean effect.

Optionally, a scraper is fixedly connected to the cleaning frame, the scraper and the surface of the camera are extruded, and the scraper is located above the water spray pipe.

Through adopting above-mentioned technical scheme, after the cleaning solution soaks the dust, the cleaning frame drives the scraper blade and removes in the removal, thereby the scraper blade promotes to be detained and removes at the cleaning solution on display screen surface, thereby reduces the cleaning solution and at the remaining possibility of display screen and camera surface, further improves clean effect.

Optionally, a protection pad is arranged on the side surface of the scraper, and the protection pad is abutted to the surface of the camera.

Through adopting above-mentioned technical scheme, the protection pad reduces the scraper blade and directly with the possibility of camera contact, reduces the scraper blade when removing, the possibility of camera.

Optionally, a bearing box is arranged on the mounting frame and located below the cleaning frame, an opening is formed in the top wall of the bearing box and faces the scraper.

Through adopting above-mentioned technical scheme, when the scraper blade promoted the cleaning solution and removes, thereby the cleaning solution falls into gradually and holds the incasement, and the unified emission after holding the incasement and collecting reduces the cleaning solution and directly falls into the possibility that causes the pollution in the environment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when a vehicle enters and exits the parking lot, the license plate of the vehicle is shot through the camera, license plate information is read, and the information is transmitted to the display screen to be displayed; when more dust is accumulated on the camera, the cleaning assembly is driven to move through the driving assembly, so that the surface of the camera and the surface of the display screen are cleaned through the cleaning assembly, the dust attached to the camera and the display screen is cleaned, the possibility that the dust shields the light of the camera is reduced, and the camera can conveniently and smoothly read license plate information;

2. when the cleaning frame moves, the cleaning motor is started, the cleaning motor drives the cleaning gear to rotate, the cleaning gear drives the rotating gear to rotate, the rotating gear drives the cleaning roller to rotate, the friction force between the cleaning roller and the surface of the camera is increased, and the cleaning effect on dust is improved;

3. the cleaning frame drives the scraper blade to move when moving, and the surface friction of the surface of scraper blade and camera and display screen promotes the cleaning solution and removes to this reduces the cleaning solution and remains the possibility on camera and display screen surface.

Drawings

Fig. 1 is a schematic view of the overall structure of a license plate recognition device for a city parking lot in the embodiment.

Fig. 2 is a schematic structural diagram of a driving assembly embodying the embodiment.

Fig. 3 is an enlarged view of a portion a in fig. 2.

FIG. 4 is a schematic diagram of the cleaning assembly, cleaning tank, spray pipe, and receiving tank of the embodiment.

Fig. 5 is an enlarged view of a portion B in fig. 4.

Description of reference numerals: 1. a mounting frame; 11. a display screen; 12. a camera; 13. a wireless sensor; 14. a drive block; 15. a connecting plate; 16. a cleaning tank; 17. a water pump; 171. a water pumping pipe; 172. a water injection pipe; 18. a receiving box; 181. an opening; 2. a cleaning assembly; 21. a cleaning frame; 22. a cleaning roller; 221. a rotating gear; 23. a cleaning pad; 24. cleaning the brush; 25. cleaning the motor; 251. cleaning the gear; 26. a water spray pipe; 261. a nozzle; 27. a squeegee; 271. a protection pad; 3. a drive assembly; 31. a drive motor; 32. a drive shaft; 33. a worm; 34. a worm gear; 35. driving a lead screw; 251. and a limiting block.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a license plate recognition device for a city parking lot. Referring to fig. 1 and 2, a license plate recognition device for urban parking lot includes mounting bracket 1, display screen 11, camera 12, clean subassembly 2 and drive assembly 3, mounting bracket 1 sets up subaerial, display screen 11 fixes on mounting bracket 1, camera 12 is located display screen 11 top, the surface of camera 12 flushes with the surface of display screen 11 mutually, clean subassembly 2 sets up on mounting bracket 1 and is used for clearing up the dust on camera 12 and the display screen 11, drive assembly 3 fixes on mounting bracket 1 and is used for driving clean subassembly 2 to remove the clearance dust.

Referring to fig. 1, the mounting frame 1 can be rotatably connected to the ground, so that the orientation of the mounting frame 1 can be conveniently adjusted, the orientation of the camera 12 can be further adjusted, and the camera 12 can conveniently shoot a license plate and read information of the license plate;

referring to fig. 1 and 2, be equipped with wireless sensor 13 on the mounting bracket 1, wireless sensor 13 is connected with drive assembly 3 and control room electricity respectively, when attaching to the dust on camera 12, send control signal to wireless sensor 13 in the control room, wireless sensor 13 control drive assembly 3 starts, remove through the clean subassembly 2 of drive assembly 3 drive, thereby clean subassembly 2 clears up the dust on camera 12 and the display screen 11 in proper order, thereby realize automatic dust to on camera 12 and the display screen 11, reduce the possibility that the dust blocks camera 12 light, make things convenient for camera 12 to read the possibility of license plate information smoothly.

Referring to fig. 1 and 2, the mounting frame 1 is slidably connected with driving blocks 14, the driving blocks 14 slidably move along the height direction of the mounting frame 1, two driving blocks 14 may be provided, the two driving blocks 14 are respectively located at two sides of the display screen 11, the driving blocks 14 are connected with the driving assembly 3,

referring to fig. 3, the driving assembly 3 includes a driving motor 31, a driving shaft 32 and a worm 33, the driving motor 31 is disposed on the mounting frame 1, an end wall of an output shaft of the driving motor 31 is connected with the driving shaft 32 through a coupler, the driving shaft 32 is disposed along a width direction of the mounting frame 1, the worm 33 is sleeved on the driving column, the worm 33 and the driving shaft 32 are disposed coaxially with the driving shaft 32 toward the welding worm 33, the worm 33 is disposed opposite to the driving block 14, and the driving motor 31 is disposed on one side far away from the ground.

Referring to fig. 2 and 3, the mounting bracket 1 is welded with the connecting plate 15, the connecting plate 15 is arranged opposite to the worm 33, the connecting plate 15 is rotatably connected with a worm wheel 34 engaged with the worm 33, a driving screw 35 is welded in the worm wheel 34, the driving screw 35 is arranged along the height direction of the mounting bracket 1, and one end of the driving screw 35, which is far away from the connecting plate 15, penetrates through the driving block 14 and is in threaded connection with the driving block 14.

Referring to fig. 2 and 3, a limiting block 251 is welded at one end of the driving screw 35 penetrating through the driving block 14, and the cross-sectional area of the limiting block 251 is larger than that of the driving screw 35; when dust is cleaned, the driving motor 31 is started, the driving motor 31 drives the driving shaft 32 to rotate, the driving shaft 32 drives the worm 33 to rotate, the worm 33 drives the worm wheel 34 to rotate, the worm wheel 34 drives the driving screw 35 to rotate, and therefore the driving block 14 is driven to move along the axis direction of the driving screw 35, the cleaning frame is driven to move smoothly, and the cleaning of the camera 12 and the display screen 11 is completed; the stopper 251 limits the range of movement of the drive block 14 on the drive screw 35, reducing the possibility of the drive block 14 disengaging from the drive screw 35.

Referring to fig. 4 and 5, the cleaning assembly 2 includes a cleaning frame 21, a cleaning roller 22, a cleaning pad 23 and a cleaning brush 24, the cleaning frame 21 is welded on the driving block 14, the cleaning frame 21 is disposed along the width direction of the display screen 11, the cleaning roller 22 is rotatably connected to the cleaning frame 21, the cleaning pad 23 is adhered to the outer side wall of the cleaning roller 22, the cleaning brush 24 is integrally formed with the cleaning pad 23 and disposed on the cleaning pad 23, and one end of the cleaning brush 24 away from the cleaning pad 23 is rubbed with the surface of the camera 12.

Referring to fig. 5, the cleaning frame 21 is fixedly connected to the cleaning motor 25 through bolts, the output shaft of the cleaning motor 25 is fixedly connected to the cleaning gear 251, the end wall of the cleaning roller 22 is welded with the rotating gear 221, the rotating gear 221 is meshed with the cleaning gear 251, and the rotating gear 221 with a specific size can be selected to be welded on the cleaning roller 22 according to the requirement of the rotating speed, so that the rotating speed transmitted from the cleaning motor 25 to the cleaning roller 22 is reduced.

Referring to fig. 4 and 5, when cleaning dust, the driving assembly 3 drives the driving block 14 to slide, the driving block 14 drives the cleaning frame 21 to move, the cleaning motor 25 is started, the cleaning motor 25 drives the cleaning gear 251 to rotate, the cleaning gear 251 drives the rotating gear 221 to rotate, the rotating gear 221 drives the cleaning roller 22 to rotate, the cleaning frame 21 drives the cleaning roller 22 to move, and meanwhile, the cleaning roller 22 rotates to drive the cleaning brush 24 to continuously rub the surface of the camera 12 and the surface of the display screen 11, so that the dust is smoothly cleaned.

Referring to fig. 5, the welding has clean box 16 on mounting bracket 1, is equipped with the cleaning solution in the clean box 16, and the cleaning solution adopts the liquid crystal detergent, has water pump 17 through the bolt rigid coupling on the lateral wall of clean box 16, and water pump 17's water pump department has inserted drinking-water pipe 171, and in the one end that water pump 17 was kept away from to drinking-water pipe 171 stretched into clean box 16, water pump 17's water outlet department inserted water injection pipe 172, and water injection pipe 172 adopted the hose.

Referring to fig. 4, the cleaning frame 21 is welded with the water spray pipe 26 communicated with one end of the water injection pipe 172 far away from the water pump 17, the water spray pipe 26 is arranged along the width direction of the display screen 11, the length of the water spray pipe 26 is greater than the width of the display screen 11, the side surface of the water spray pipe 26 is provided with a nozzle 261, the nozzle 261 is an atomizing nozzle 261, the number of the nozzles 261 can be multiple, the plurality of nozzles 261 are arranged along the axial direction of the water spray pipe 26, and the water outlet of the nozzle 261 is arranged towards the display screen 11.

Referring to fig. 5, a scraper 27 is welded on the cleaning frame 21, the scraper 27 is arranged in the axial direction of the cleaning roller 22, the scraper 27 and the water spray pipe 26 are respectively located at two sides of the cleaning roller 22, the water spray pipe 26 is located below the cleaning roller 22, a protection pad 271 is adhered to one side of the scraper 27 close to the display screen 11, and the side surface of the protection pad 271 is abutted to the surface of the camera 12.

Referring to fig. 4 and 5, the mounting frame 1 is provided with a receiving box 18, the receiving box 18 is located below the water injection pipe 172, and the top wall of the receiving box 18 is provided with an opening 181; before dust cleaning is started, cleaning agent is firstly pumped into the water pumping pipe 171 through the water pump 17 and then is injected into the water spraying pipe 26 through the water injection pipe 172, and then is sprayed onto the camera 12 and the display screen 11 through the nozzle 261, and when the cleaning frame 21 moves, the water spraying pipe 26 is driven to move, so that the whole display screen 11 is sprayed, the cleaning solution soaks the dust, and the dust cleaning effect is improved; when the cleaning frame 21 moves, the scraper 27 is driven to move, the scraper 27 drives the protective pad 271 to rub with the surfaces of the camera 12 and the display screen 11, so that the cleaning liquid is pushed to move, the cleaning liquid is scraped into the receiving box 18 through the opening 181, the possibility that the cleaning liquid is remained on the surfaces of the camera 12 and the display screen 11 is reduced, the possibility that the scraper 27 scratches the camera 12 and the display screen 11 in the moving process is reduced, meanwhile, the receiving box 18 timely recovers the cleaning agent, and the possibility that the cleaning agent pollutes the environment is reduced.

The implementation principle of the license plate recognition device for the urban parking lot in the embodiment of the application is as follows: when the camera 12 shoots the vehicle identification, the license plate information is read and transmitted to the display screen 11 for display; when the dust is attached to the camera 12, the driving assembly 3 drives the cleaning assembly 2 to move, so that the cleaning assembly 2 cleans the dust on the camera 12 and the display screen 11, the possibility that the dust is attached to the camera 12 and the display screen 11 is reduced, the possibility that the dust shields the light of the camera 12 is reduced, and the camera 12 can read the license plate information smoothly.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a license plate recognition device for urban parking area which characterized in that: including mounting bracket (1), display screen (11) and camera (12) of setting on mounting bracket (1), camera (12) with display screen (11) are connected, be equipped with respectively on mounting bracket (1) with clean subassembly (2) to dust on clean camera (12) and display screen (11) and be used for driving drive assembly (3) that clean subassembly (2) removed.

2. The license plate recognition device for the urban parking lot according to claim 1, wherein: clean subassembly (2) including slide connect clean frame (21) on mounting bracket (1), set up cleaning roller (22) and the cover on clean frame (21) establish cleaning pad (23) on cleaning roller (22) periphery wall, clean frame (21) with drive assembly (3) are connected, be equipped with clean brush (24) on the lateral wall of cleaning pad (23), clean brush (24) with the shooting face of camera (12) is inconsistent, the shooting face of camera (12) with display screen (11) flushes mutually.

3. The license plate recognition device for the urban parking lot according to claim 2, wherein: a cleaning motor (25) is fixedly connected to the cleaning frame (21), a cleaning gear (251) is fixedly connected to an output shaft of the cleaning motor (25), and a rotating gear (221) meshed with the cleaning gear (251) is fixedly connected to the end wall of the cleaning roller (22).

4. The license plate recognition device for the urban parking lot according to claim 2, wherein: drive assembly (3) including setting up driving motor (31) on mounting bracket (1), setting up drive shaft (32) on driving motor (31) output shaft and fixing worm (33) on drive shaft (32), it is connected with worm wheel (34) to rotate on mounting bracket (1), worm wheel (34) rigid coupling has drive screw (35), be equipped with driving block (14) on clean frame (21), driving block (14) with mounting bracket (1) slides and is connected, the one end that worm wheel (34) were kept away from in drive screw (35) is passed driving block (14) and with driving block (14) threaded connection.

5. The license plate recognition device for the urban parking lot according to claim 2, wherein: be equipped with clean case (16) that are equipped with the cleaning solution on mounting bracket (1), be equipped with water pump (17) on clean case (16), the mouth that draws water of water pump (17) with clean case (16) are linked together, the rigid coupling has spray pipe (26) on clean frame (21), be equipped with nozzle (261) on the side of spray pipe (26), the delivery port orientation of nozzle (261) the surface of display screen (11).

6. The license plate recognition device for the urban parking lot according to claim 5, wherein: a scraper (27) is fixedly connected to the cleaning frame (21), the scraper (27) and the surface of the camera (12) are extruded mutually, and the scraper (27) is positioned above the water spray pipe (26).

7. The license plate recognition device for the urban parking lot of claim 6, wherein: and a protection pad (271) is arranged on the side surface of the scraper (27), and the protection pad (271) is abutted against the surface of the camera (12).

8. The license plate recognition device for the urban parking lot according to claim 7, wherein: be equipped with on mounting bracket (1) and hold case (18), it is located to hold case (18) clean frame (21) below, be equipped with opening (181) on the roof of holding case (18), opening (181) set up towards scraper blade (27).