CN115909756A - Electronic license plate recognition system based on active vehicle-mounted unit - Google Patents
Electronic license plate recognition system based on active vehicle-mounted unit Download PDFInfo
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- CN115909756A CN115909756A CN202211404359.6A CN202211404359A CN115909756A CN 115909756 A CN115909756 A CN 115909756A CN 202211404359 A CN202211404359 A CN 202211404359A CN 115909756 A CN115909756 A CN 115909756A
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- 239000011521 glass Substances 0.000 claims abstract description 39
- 238000010438 heat treatment Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- 239000002352 surface water Substances 0.000 description 2
- 101001093748 Homo sapiens Phosphatidylinositol N-acetylglucosaminyltransferase subunit P Proteins 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention relates to the technical field of electronic license plates, and discloses an electronic license plate recognition system based on an active vehicle-mounted unit, which comprises a base, a display and a camera, wherein a support column is vertically and fixedly arranged at the top of the base, the display is fixedly arranged at the upper end of the support column, and the camera is fixedly arranged at the top of the display; the camera comprises a shell, a main body and a glass cover, wherein the main body is fixedly arranged inside the shell, one side of the shell is provided with an opening, the glass cover is fixedly arranged at the opening of the shell, a waterproof film is bonded on the outer side surface of the glass cover, a heating resistance wire is arranged between the waterproof film and the glass cover, and RSU communication microwave equipment is fixedly arranged on the inner side wall of the shell; the top of base and both sides all are equipped with protection machanism around being located the support column. The electronic license plate recognition system based on the active vehicle-mounted unit has good waterproof and anti-collision protection functions, and the service life of the electronic license plate recognition system is prolonged.
Description
Technical Field
The invention relates to the technical field of electronic license plates, in particular to an electronic license plate recognition system based on an active vehicle-mounted unit.
Background
The license plate recognition system is an application of a computer video image recognition technology in vehicle license plate recognition, the license plate recognition is widely applied to highway vehicle management, an Electronic Toll Collection (ETC) system is also a main means for recognizing vehicle identities by combining a DSRC technology, the license plate recognition technology is required to be capable of extracting and recognizing a moving vehicle license plate from a complex background, and information such as a vehicle license plate number, a color and the like is recognized through technologies such as license plate extraction, image preprocessing, feature extraction, license plate character recognition and the like.
The active vehicle-mounted unit is called obu vehicle-mounted equipment for short, the obu vehicle-mounted equipment is mainly equipment installed on an automobile, and the obu vehicle-mounted equipment is in induction fit with microwave equipment which is arranged inside a doorway electronic license plate and is used for RSU communication, so that the function of automatically controlling traffic is realized. The existing electronic license plate based on an active vehicle-mounted unit is usually arranged outdoors to identify the license plate of a passing vehicle, but rainwater can cause certain influence on equipment outdoors.
Wherein the patent number is CN215679634U, discloses license plate recognition system, including the protection casing, the upper portion fixedly connected with baffle of protection casing front end, the intermediate position of protection casing front end is provided with the recess, upper portion in the recess is provided with connecting rod and lead screw respectively, the one end of lead screw is rotated and is connected one side at the fixed block, the other end of lead screw runs through the side and the fixed connection of protection casing and safety cover on first gear, the periphery threaded connection of lead screw is in the inboard of slider one end, the inboard sliding connection of the slider other end is in the periphery of connecting rod, the bottom fixedly connected with license plate recognition system main part of slider, the inboard fixedly connected with motor of safety cover, the output fixedly connected with second gear of motor, the inboard of recess is provided with the controller, the intermediate position of protection casing bottom is provided with displacement sensor.
In the scheme, the license plate recognition system main body is protected from rain in a moving mode, but the license plate recognition system main body cannot continuously recognize the license plate in the moving process, so that the recognition of the vehicle is delayed, and therefore, the electronic license plate recognition system based on the active vehicle-mounted unit is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides the electronic license plate recognition system based on the active vehicle-mounted unit, which has better waterproof and anti-collision protection functions, prolongs the service life of the electronic license plate recognition system, and solves the problem of poor water discharging effect of the electronic license plate recognition system based on the active vehicle-mounted unit.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: the electronic license plate recognition system based on the active vehicle-mounted unit comprises a base, a display and a camera, wherein a support column is vertically and fixedly arranged at the top of the base, the display is fixedly arranged at the upper end of the support column, and the camera is fixedly arranged at the top of the display;
the camera comprises a shell, a main body and a glass cover, wherein the main body is fixedly arranged inside the shell, one side of the shell is provided with an opening, the glass cover is fixedly arranged at the opening of the shell, a waterproof film is bonded on the outer side surface of the glass cover, a heating resistance wire is arranged between the waterproof film and the glass cover, and RSU communication microwave equipment is fixedly arranged on the inner side wall of the shell;
the top of base just is located both sides around the support column and all is equipped with protection machanism.
Preferably, the protection machanism includes guard plate, fixing base, pivot, torque spring and elastic telescopic rod, the both sides of base are all fixed to be equipped with the fixing base, the both sides bottom of guard plate is all fixed to be equipped with the pivot, two the one end that the guard plate was kept away from in the pivot is rotated with the lateral wall of fixing base and is connected, on the axle wall of pivot was located to the torque spring cover, and torque spring's both ends respectively with the lateral wall of fixing base and the lateral wall fixed connection of guard plate, the post wall of support column and the lateral wall of guard plate are all fixed to be equipped with U type piece, elastic telescopic rod's both ends all rotate respectively through the pivot and set up in two the inside of U type piece.
Preferably, the elastic telescopic rod comprises a sleeve, a moving rod and a spring, one end of the moving rod is inserted into the sleeve, one end of the moving rod is fixedly connected with one end of the spring, one end of the spring far away from the moving rod is fixedly connected with the inner wall of the sleeve, and one end of the sleeve deviated from the moving rod is respectively rotatably arranged in the two U-shaped blocks.
Preferably, the carriage release lever adopts square pole, telescopic inner wall adopts the quad slit with carriage release lever matched with.
Preferably, the glass cover is arranged in an inclined angle, and a plurality of uniformly distributed water leakage holes are formed in the bottom of the shell and the outer side part of the shell, which is located on the glass cover.
Preferably, the heating resistance wire, the main body and the RSU communication microwave equipment are connected in a controlled mode through the same external power switch.
Preferably, the fixed spud pile that is equipped with a plurality of evenly distributed in bottom of base, and the lower extreme of spud pile adopts most advanced structure to set up.
Preferably, the protection plate adopts the stainless steel sheet, and the protection plate adopts outside angle slope setting.
(III) advantageous effects
Compared with the prior art, the invention provides an electronic license plate recognition system based on an active vehicle-mounted unit, which has the following beneficial effects:
1. this electronic license plate identification system based on active on-vehicle unit, through the glass lid that is equipped with, and the glass lid adopts the angle slope setting for the automatic landing of water on glass lid surface can avoid the rainwater to stop for a long time in the surface of glass lid in the bottom, if the glass lid surface adhesion a small amount of water stain appears, the power of switch-on heating resistor silk this moment, the heating resistor silk can heat the surface of glass lid, makes the surface water stain evaporation of glass lid fall.
2. This electronic license plate identification system based on active on-vehicle unit, through guard plate, fixing base, pivot, torque spring and the elastic telescopic rod that is equipped with, when the vehicle striking guard plate for the guard plate is around the rotation of rotation axis angle, and the guard plate can make the torque spring atress at rotatory in-process, thereby can make the guard plate possess the function of buffering, reduces the influence of impact force to the support column, avoids causing the phenomenon of damage to display and camera.
3. This electronic license plate identification system based on active on-vehicle unit, through setting up sleeve, carriage release lever and the spring between guard plate and support column, the guard plate can promote the carriage release lever and remove and compression spring in telescopic inside at rotatory in-process, can increase the elastic function of guard plate this moment, the influence of the external impact force of effectual absorption.
Drawings
FIG. 1 is a schematic structural diagram of an electronic license plate recognition system based on an active vehicle-mounted unit according to the present invention;
FIG. 2 is a schematic structural diagram of the camera head in FIG. 1;
FIG. 3 is an enlarged view of a portion A of FIG. 1;
FIG. 4 is a side view of the support post and shield plate of FIG. 1;
fig. 5 is a schematic structural view of the elastic telescopic rod in fig. 4.
In the figure: 1. a base; 2. a display; 3. a camera; 4. a support pillar; 5. a housing; 6. a main body; 7. a glass cover; 8. a water-resistant film; 9. heating resistance wires; 10. an RSU communication microwave device; 11. a protection plate; 12. a fixed seat; 13. a rotating shaft; 14. a torsion spring; 15. fixing the pile; 16. an elastic telescopic rod; 17. a U-shaped block; 18. a sleeve; 19. a travel bar; 20. a spring; 21. and (4) water leakage holes.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the electronic license plate recognition system based on the active vehicle-mounted unit comprises a base 1, a display 2 and a camera 3, wherein a plurality of fixing piles 15 which are uniformly distributed are fixed at the bottom of the base 1, the lower ends of the fixing piles 15 are arranged in a tip structure, and the base 1 can be stably installed in the ground through the fixing piles 15; a support column 4 is vertically and fixedly arranged at the top of the seat 1, the display 2 is fixedly arranged at the upper end of the support column 4, and the camera 3 is fixedly arranged at the top of the display 2; the camera 3 comprises a shell 5, a main body 6 and a glass cover 7, wherein the main body 6 is fixedly arranged inside the shell 5, one side of the shell 5 is open, the glass cover 7 is fixedly arranged at the opening of the shell 5, a waterproof film 8 is bonded on the outer side surface of the glass cover 7, a heating resistance wire 9 is arranged between the waterproof film 8 and the glass cover 7, the power supply of the heating resistance wire 9 is switched on, and the heating resistance wire 9 can heat the surface of the glass cover 7 so that water stains on the surface of the glass cover 7 are evaporated; RSU communication microwave equipment 10 is fixedly installed on the inner side wall of the shell 5, the heating resistance wire 9, the main body 6 and the RSU communication microwave equipment 10 are connected in a controlled mode through the same external power switch, and the RSU communication microwave equipment 10 is in induction fit with obu vehicle-mounted equipment on an automobile; the glass cover 7 is obliquely arranged at an angle, and a plurality of uniformly distributed water leakage holes 21 are formed in the bottom of the shell 5 and the outer side part of the glass cover 7, so that the dropped water can be discharged to the outside of the shell 5.
To sum up, this electronic license plate identification system based on active on-board unit, when using, through the glass lid 7 that is equipped with, and glass lid 7 adopts the angle slope setting for the automatic landing of water on glass lid 7 surface can avoid the rainwater to stop for a long time on the surface of glass lid 7, if a small amount of water stain of glass lid 7 surface adhesion appears, switch-on heating resistor wire 9's power this moment, heating resistor wire 9 can heat the surface of glass lid 7, make the surface water stain evaporation of glass lid 7 fall.
When vehicle striking guard plate 11, make guard plate 11 around 13 angular rotation of pivot, guard plate 11 can make torsion spring 14 atress at rotatory in-process, thereby can make guard plate 11 possess the function of buffering, reduce the influence of impact force to support column 4, avoid causing the phenomenon of damage to display 2 and camera 3, guard plate 11 is at rotatory in-process, can promote carriage release lever 19 at the inside removal of sleeve 18 and compression spring 20, can increase guard plate 11's elastic function this moment, the influence of the external impact force of effectual absorption, and then can protect display 2, camera 3 and support column 4.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Electronic license plate identification system based on active on-vehicle unit, including base (1), display (2) and camera (3), its characterized in that: a support column (4) is vertically and fixedly arranged at the top of the base (1), the display (2) is fixedly arranged at the upper end of the support column (4), and the camera (3) is fixedly arranged at the top of the display (2);
the camera (3) comprises a shell (5), a main body (6) and a glass cover (7), the main body (6) is fixedly installed inside the shell (5), one side of the shell (5) is arranged in an open mode, the glass cover (7) is fixedly installed at an opening of the shell (5), a waterproof membrane (8) is bonded on the outer side surface of the glass cover (7), a heating resistance wire (9) is arranged between the waterproof membrane (8) and the glass cover (7), and RSU communication microwave equipment (10) is fixedly installed on the inner side wall of the shell (5);
the top of the base (1) is provided with a protection mechanism at the front side and the rear side of the support column (4).
2. The active on-board unit based electronic license plate recognition system of claim 1, wherein: protection machanism includes guard plate (11), fixing base (12), pivot (13), torque spring (14) and elastic telescopic rod (16), the both sides of base (1) are all fixed to be equipped with fixing base (12), the both sides bottom of guard plate (11) is all fixed to be equipped with pivot (13), two the one end that guard plate (11) were kept away from in pivot (13) is rotated with the lateral wall of fixing base (12) and is connected, torque spring (14) cover is located on the axle wall of pivot (13), and the both ends of torque spring (14) respectively with the lateral wall of fixing base (12) and the lateral wall fixed connection of guard plate (11), the post wall of support column (4) and the lateral wall of guard plate (11) all fix and are equipped with U type piece (17), the both ends of elastic telescopic rod (16) all rotate respectively through the pivot and set up in two the inside of U type piece (17).
3. The active on-board unit based electronic license plate recognition system of claim 2, wherein: elasticity telescopic link (16) include sleeve (18), carriage release lever (19) and spring (20), the one end of carriage release lever (19) is inserted in the inside of sleeve (18), and the one end of carriage release lever (19) and the one end fixed connection of spring (20), the one end that carriage release lever (19) were kept away from in spring (20) and the inner wall fixed connection of sleeve (18), the one end that sleeve (18) and carriage release lever (19) deviate from mutually rotates respectively and sets up in the inside of two U type pieces (17).
4. The active on-board unit based electronic license plate recognition system of claim 3, wherein: the movable rod (19) is a square rod, and the inner wall of the sleeve (18) is a square hole matched with the movable rod (19).
5. The active on-board unit based electronic license plate recognition system of claim 1, wherein: the glass cover (7) is obliquely arranged at an angle, and a plurality of water leakage holes (21) which are uniformly distributed are formed in the bottom of the shell (5) and the outer side part of the shell, which is located on the glass cover (7).
6. The active on-board unit based electronic license plate recognition system of claim 1, wherein: the heating resistance wire (9), the main body (6) and the RSU communication microwave equipment (10) are connected in a controlled mode through the same external power switch.
7. The active on-board unit based electronic license plate recognition system of claim 1, wherein: the bottom of base (1) is fixed and is equipped with a plurality of evenly distributed's spud pile (15), and the lower extreme of spud pile (15) adopts most advanced structure setting.
8. The active on-board unit based electronic license plate recognition system of claim 2, wherein: protection plate (11) adopt the stainless steel sheet, and protection plate (11) adopt outside angle slope setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211404359.6A CN115909756A (en) | 2022-11-10 | 2022-11-10 | Electronic license plate recognition system based on active vehicle-mounted unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211404359.6A CN115909756A (en) | 2022-11-10 | 2022-11-10 | Electronic license plate recognition system based on active vehicle-mounted unit |
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| CN115909756A true CN115909756A (en) | 2023-04-04 |
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| CN202211404359.6A Pending CN115909756A (en) | 2022-11-10 | 2022-11-10 | Electronic license plate recognition system based on active vehicle-mounted unit |
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2022
- 2022-11-10 CN CN202211404359.6A patent/CN115909756A/en active Pending
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