CN104537844B - Vehicle License Plate Recognition System for peccancy detection - Google Patents

Vehicle License Plate Recognition System for peccancy detection Download PDF

Info

Publication number
CN104537844B
CN104537844B CN201510038020.2A CN201510038020A CN104537844B CN 104537844 B CN104537844 B CN 104537844B CN 201510038020 A CN201510038020 A CN 201510038020A CN 104537844 B CN104537844 B CN 104537844B
Authority
CN
China
Prior art keywords
video
unit
video acquisition
license plate
recognition system
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201510038020.2A
Other languages
Chinese (zh)
Other versions
CN104537844A (en
Inventor
李鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Leadthing Information Science and Technology Co.,Ltd.
Original Assignee
Shandong Leadthing Information Science And Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Leadthing Information Science And Technology Co Ltd filed Critical Shandong Leadthing Information Science And Technology Co Ltd
Priority to CN201510038020.2A priority Critical patent/CN104537844B/en
Publication of CN104537844A publication Critical patent/CN104537844A/en
Application granted granted Critical
Publication of CN104537844B publication Critical patent/CN104537844B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/017Detecting movement of traffic to be counted or controlled identifying vehicles
    • G08G1/0175Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules

Abstract

In order to obtain information of vehicles when improving vehicle peccancy, the invention provides a kind of Vehicle License Plate Recognition System for peccancy detection, for the car plate of the vehicles peccancy of crossroad is identified, including video monitor unit, angle information lock unit and video acquisition unit, described video acquisition unit includes the even number recognition unit being arranged to annular, each recognition unit all includes that wireless data transmission device and video acquisition device, described video acquisition device have high-definition shooting pattern and ordinary sharpness screening-mode.The present invention can adjust the shooting clear degree of video acquisition device according to angle information lock unit, thus is greatly improved the success rate of Car license recognition, and reduces the waste of unnecessary video memory space.

Description

Vehicle License Plate Recognition System for peccancy detection
Technical field
The present invention relates to field of license plate recognition, more particularly, to a kind of car plate for peccancy detection Identification system.
Background technology
Along with the high speed development of Chinese national economy, domestic motor vehicles, highway, urban road, Parking lots etc. get more and more, and the requirement to traffic control, safety management is increased the most day by day, intelligent transportation system ITS (Intelligent Transportation System) has become the development trend of 21 century control of traffic and road, Increasingly it is subject to people's attention.Wherein Vehicle License Plate Recognition System is certainly as the core of intelligent traffic administration system The intelligent traffic administration system of dynamicization provides efficient, practical means, can be widely applied to traffic monitoring, Site survey of traffic accident, break in traffic rules and regulations record automatically, criminal tracking, highway toll collection system, The aspects such as parking lot automatic safe management, Itellectualized uptown management, to improve field of traffic management level and from Dynamicization degree is significant.
Although there has been a lot of seemingly ripe Car license recognition product at present, but it really is able to apply to reality Car license recognition product occurs in abroad mostly, and comprises structure complexity for China's car plate standard is various, internal Chinese character, car plate is defaced or the problem such as deliberately block is still without a fine solution so that mesh Before domestic go back neither one can under various outdoor conditions efficient, stable, the discrimination height of all weather operations Car license recognition product.Therefore, this vacancy attracts numerous people and goes constantly to study and explore.Right The Car license recognition product occurred in current China carries out video capture to identify car plate with dependence hardware trigger system Mode in the majority, such as magnetic induction loop, infrared, radio frequency etc., its toggle rate is higher, but the installation of hardware device Higher with maintenance cost.And along with the fast development of computer technology, the operational speed of a computer significantly improves, Vehicle License Plate Recognition System based on video increasingly receives publicity, and its advantage is that of avoiding the dependence to hardware device Thus reducing cost, its shortcoming is that operand is big, and the image being identified is the frame in video, this figure As being affected by vehicle traveling direction, speed and other external interference, acquired picture quality is not as static state Image.
Summary of the invention
Information of vehicles is obtained, especially when the technical problem to be solved is how to improve vehicle peccancy License board information, success rate.In order to solve the problems referred to above, the invention provides following technical scheme: one Plant the Vehicle License Plate Recognition System for peccancy detection, for the car plate of the vehicles peccancy of crossroad is identified, Including video monitor unit, angle information lock unit and video acquisition unit, described video acquisition unit bag Including the even number recognition unit being arranged to annular, each recognition unit all includes wireless data transmission device and regards Frequently harvester, described video acquisition device has high-definition shooting pattern and ordinary sharpness screening-mode, uses In shooting automobile video frequency and being added to by timestamp in gathered video, the video of these recognition units is adopted Acquisition means arranges in diagonal angle two-by-two and video acquisition is all carried out in units of four video acquisition devices simultaneously every time Video acquisition, described Vehicle License Plate Recognition System also includes that unit proofreaded by clock, is used for making the same video of described timestamp The time synchronized of monitoring unit, described angle information lock unit is used for determining which video acquisition device is set Putting high-definition shooting pattern, which video acquisition device is set to ordinary sharpness screening-mode.
Further, described video monitor unit includes video analysis unit and video storage unit.
Further, described video storage unit includes video compressing unit and memorizer.
Further, described recognition unit determines video acquisition to be unlocked according to angle information lock unit Device.
Further, described Vehicle License Plate Recognition System also includes lighting unit.
Further, described annular can also is that Else Rule or irregular shape.
The invention has the beneficial effects as follows: the bat of video acquisition device can be adjusted according to angle information lock unit Take the photograph definition, thus be greatly improved the success rate of Car license recognition, and reduce unnecessary video memory space Waste.
Accompanying drawing explanation
Fig. 1 shows the structural frames of the preferred embodiment of the Vehicle License Plate Recognition System for peccancy detection of the present invention Figure.
Fig. 2 shows the duty example of the video acquisition device when craspedodrome lamp turns green.
Detailed description of the invention
As it is shown in figure 1, the Vehicle License Plate Recognition System for peccancy detection includes video monitor unit, angle information Lock unit and video acquisition unit, described video acquisition unit includes the even number identification being arranged to annular Unit, each recognition unit all includes that wireless data transmission device and video camera, described video camera have high definition and clap Take the photograph pattern and ordinary sharpness screening-mode, be used for shooting automobile video frequency and being added to by timestamp and gathered Video in, the video camera of these recognition units arranges in diagonal angle two-by-two and every time video acquisition is all taken the photograph with four Camera is that unit carries out video acquisition simultaneously, and described Vehicle License Plate Recognition System also includes that unit proofreaded by clock, is used for Make described timestamp with the time synchronized of video monitor unit.
Described video monitor unit is arranged near crossroad or the Control Room of remote monitoring center, adopts The server strong with video or Image Information Processing ability or work station, such as, graphics workstation.
Described angle information lock unit is used for determining which video camera is set to high-definition shooting pattern, which Video camera is set to ordinary sharpness screening-mode.The standard determined is: according to being likely to occur car violating the regulations Two points that the direction at place, road is intersected with described annular, two video acquisition unit neighbouring to each point Video camera arranges high-definition shooting pattern, and other video capture mode arranges the shooting mould of ordinary sharpness Formula.The shooting mode of camera switching signal that this angle information lock unit sends to each video acquisition unit It is that the traffic responsive signal according to crossroad obtains.Such as, as in figure 2 it is shown, work as the straight of crossroad Portable lighter turns green, and when left-hand rotation lamp and right-hand rotation lamp are red, then the track of vehicle peccancy is Through Lane and right-turn lane. Now, there are two friendships in the annular that the direction of left turn lane and right-turn lane is constituted respectively with each recognition unit Point, each near intersections exists two apart from nearest two video cameras of this intersection point.Therefore, Through Lane Four video cameras will be opened respectively with the direction of right-turn lane and enter high-definition shooting pattern.In Fig. 2, circular table Show the annular that all recognition units are constituted, by horizontal, vertical orthogonal two dotted lines in this circle center of circle Intersection point, the i.e. center of circle, represent the center of crossroad.The centrage of left turn lane and the level side of crossroad Becoming 45 degree of angles to (vertical view), the centrage of right-turn lane becomes 45 with the horizontal direction (vertical view) of crossroad Degree angle.Left turn lane centrage and right-turn lane centrage be currently in once have vehicle cross occur as soon as violating the regulations Situation.Therefore, once the ground coil of left turn lane and right-turn lane has sensed that vehicle crosses, then sentence It is set to and vehicle peccancy situation now occurs.It is to say, now, video monitor unit receives this signal, Control angle information synchronizing unit and open the high-definition shooting pattern of 8 video cameras as shown in Figure 2, and control The video camera of other recognition unit is in ordinary sharpness screening-mode.
According to a preferred embodiment of the invention, entering and exit high-definition shooting pattern is according to each recognition unit In electromagnetic valve realize.This electromagnetic valve receives the signal from angle information lock unit, and then produces electricity The action of magnet valve.Electromagnetic valve changes the position of the screening-mode switching switch of video camera, thus changes video camera Change to ordinary sharpness screening-mode from high-definition shooting pattern, or in turn.
Described clock check and correction unit make in each integral point moment time of the video camera of each recognition unit with The time synchronized of video monitor unit, is so conducive to the accuracy during video decomposition framing of situation violating the regulations.
When video is wirelessly transferred to video monitor unit, video signal is filtered through video Ripple and coding circuit plate are encoded to the video of H.264 form by hardware, are delayed by one through chronotron simultaneously Section time (such as 20 seconds).Video analysis unit preserves the video in this section of delay time in it caches Copy.During this time delay, if there is situation violating the regulations, then video analysis unit according to violating the regulations occur time Carve, decompose frame by frame in the above-mentioned moment through above-mentioned video copy, and select through image processing algorithm Wherein license plate image is obtained the most some images (preferably, with 4 two field pictures before definition sequence It is as the criterion), these some two field pictures are together saved in video together with the video without above-mentioned coding from video camera Memory element.Video storage unit includes video compressing unit and memorizer, in order to more save video storage sky Between, video to be saved in memorizer (such as, magnanimity hard disk) after video compressing unit is compressed again.
Preferably, Vehicle License Plate Recognition System also includes lighting unit.When video camera enters high-definition shooting pattern, Video camera also controls lighting unit floor light, former with the car plate avoiding the reason such as ambient black, weather to cause The problem that beginning image definition is the highest.
Above detailed description of the invention is illustrative of the invention, and is not intended to limit the present invention.Obviously, ability The technical staff in territory can carry out various change and modification without deviating from the spirit of the present invention and model to the present invention Enclose.So, if these amendments and modification to the present invention belong to the claims in the present invention and equivalent technologies thereof Within the scope of, then the present invention is also intended to comprise these change and modification.

Claims (3)

1. for a Vehicle License Plate Recognition System for peccancy detection, for the car plate of the vehicles peccancy to crossroad It is identified, including angle information lock unit and video acquisition unit, it is characterised in that also include that video is supervised Control unit, described video acquisition unit includes the even number recognition unit being arranged to annular, and each recognition unit is equal Including wireless data transmission device and video acquisition device, described video acquisition device is for adding to timestamp In the video gathered, the video acquisition device of these recognition units is arranged in diagonal angle and each video acquisition two-by-two All carrying out video acquisition in units of four video acquisition devices, described Vehicle License Plate Recognition System also includes clock simultaneously Check and correction unit, for making described timestamp synchronize single with the time synchronized of video monitor unit, described angle information Unit is used for determining which video acquisition device is set to high-definition shooting pattern, and which video acquisition device is set To ordinary sharpness screening-mode;
Described video monitor unit includes video analysis unit and video storage unit;
Described video monitor unit is arranged near crossroad or the Control Room of remote monitoring center, uses Graphics workstation;
Described angle information lock unit is used for determining which video camera is set to high-definition shooting pattern, and which is taken the photograph Camera is set to ordinary sharpness screening-mode;The standard determined is: according to being likely to occur track institute violating the regulations Two points intersecting with described annular of direction, the video camera of two video acquisition unit neighbouring to each point High-definition shooting pattern is set, and other video capture mode is arranged the screening-mode of ordinary sharpness;This angle Degree information synchronizing unit is according to ten to the shooting mode of camera switching signal that each video acquisition unit sends The traffic responsive signal at word crossing obtains;
When video is wirelessly transferred to video monitor unit, video signal is by through video filtering It is encoded to the video of H.264 form with coding circuit plate by hardware, is delayed by one section through chronotron simultaneously Time;Video analysis unit preserves the copy of the video in this section of delay time in it caches;At this time delay Between, if there is situation violating the regulations, then video analysis unit is according to the moment occurred violating the regulations, to through above-mentioned video Copy decomposed frame by frame in the above-mentioned moment, and selected wherein to obtain license plate image through image processing algorithm These some two field pictures are together protected by the most some images together with the video without above-mentioned coding from video camera It is stored to video storage unit.
Vehicle License Plate Recognition System for peccancy detection the most according to claim 1, it is characterised in that institute State Vehicle License Plate Recognition System and also include lighting unit.
Vehicle License Plate Recognition System for peccancy detection the most according to claim 1, it is characterised in that institute State annular and can also is that Else Rule or irregular shape.
CN201510038020.2A 2015-01-26 2015-01-26 Vehicle License Plate Recognition System for peccancy detection Active CN104537844B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510038020.2A CN104537844B (en) 2015-01-26 2015-01-26 Vehicle License Plate Recognition System for peccancy detection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510038020.2A CN104537844B (en) 2015-01-26 2015-01-26 Vehicle License Plate Recognition System for peccancy detection

Publications (2)

Publication Number Publication Date
CN104537844A CN104537844A (en) 2015-04-22
CN104537844B true CN104537844B (en) 2016-08-24

Family

ID=52853363

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510038020.2A Active CN104537844B (en) 2015-01-26 2015-01-26 Vehicle License Plate Recognition System for peccancy detection

Country Status (1)

Country Link
CN (1) CN104537844B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106683400A (en) * 2015-11-11 2017-05-17 上海安防电子股份有限公司 Method and a system for obtaining evidence by capturing vehicles at traffic crossing under panoramic video detection
CN109035805B (en) * 2018-09-21 2021-03-02 深圳市九洲电器有限公司 Intelligent recognition method and device for license plate number
CN111223302B (en) * 2018-11-23 2021-12-03 明创能源股份有限公司 External coordinate real-time three-dimensional road condition auxiliary device for mobile carrier and system
CN110533921B (en) * 2019-08-06 2021-06-18 北京万集科技股份有限公司 Triggering snapshot method and system for vehicle
CN112233421A (en) * 2020-10-15 2021-01-15 胡歆柯 Intelligent city intelligent traffic monitoring system based on machine vision

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201174173Y (en) * 2007-10-26 2008-12-31 杜剑华 Network digital image taking instrument for going through red light
CN102521992A (en) * 2011-12-14 2012-06-27 中盟智能科技(苏州)有限公司 Apparatus possessing digital enforcement and signal lamp control
CN204087489U (en) * 2014-09-17 2015-01-07 深圳市林润实业有限公司 A kind of digital-scroll technique high-definition electronic police grasp shoot device
CN104299419A (en) * 2014-10-28 2015-01-21 合肥指南针电子科技有限责任公司 High-definition snapshot information system and method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6970102B2 (en) * 2003-05-05 2005-11-29 Transol Pty Ltd Traffic violation detection, recording and evidence processing system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201174173Y (en) * 2007-10-26 2008-12-31 杜剑华 Network digital image taking instrument for going through red light
CN102521992A (en) * 2011-12-14 2012-06-27 中盟智能科技(苏州)有限公司 Apparatus possessing digital enforcement and signal lamp control
CN204087489U (en) * 2014-09-17 2015-01-07 深圳市林润实业有限公司 A kind of digital-scroll technique high-definition electronic police grasp shoot device
CN104299419A (en) * 2014-10-28 2015-01-21 合肥指南针电子科技有限责任公司 High-definition snapshot information system and method

Also Published As

Publication number Publication date
CN104537844A (en) 2015-04-22

Similar Documents

Publication Publication Date Title
CN104537844B (en) Vehicle License Plate Recognition System for peccancy detection
CN102521983B (en) Vehicle violation detection system based on high definition video technology and method thereof
KR101786923B1 (en) CCTV system integrated multi operations
CN101964145A (en) Automatic license plate recognition method and system
CN101493979B (en) Method and instrument for detecting and analyzing intelligent network vision target
CN104157138A (en) Urban road video monitoring system
CN203346814U (en) Dual-lane integrated community intelligent lane barrier management system based on vehicle license plate recognition technology
CN103065470A (en) Detection device for behaviors of running red light of vehicle based on machine vision with single eye and multiple detection faces
CN103617655A (en) Crossing toll collection device based on visible light communication and toll collection system
CN103646546B (en) A kind of intelligent transportation system with the forbidden function of oversize vehicle
CN105355053B (en) Disobey parking automatic checkout system in roadside
CN104805784B (en) Gate fare evasion detection system and gate fare evasion detection method
CN201397576Y (en) Device for automatically shooting picture of the illegal turning of vehicles at crossings
CN103280052B (en) Be applied to the intrusion detection method of long distance track circuit intelligent video monitoring
CN106485927A (en) A kind of intelligent transportation violation information harvester and acquisition method
CN103646550A (en) Intelligent vehicle license plate recognition system
CN105118292A (en) Gate type electronic police system
CN201655023U (en) Traffic violation monitoring device of large truck
CN203838762U (en) Crossing toll device based on visible light communication and toll system
CN202472943U (en) Vehicle violation detecting system based on high definition video technology
CN201689549U (en) High-definition dynamic track tracking electronic policeman system
CN104392616B (en) Intelligent traffic light control system and method
CN101533558A (en) Fixed intersection monitoring system
CN107123270A (en) A kind of intelligent managing and control system in building site for slag-soil truck
CN108510757A (en) A kind of crossroad intelligent traffic light management system and method based on image recognition

Legal Events

Date Code Title Description
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C41 Transfer of patent application or patent right or utility model
CB03 Change of inventor or designer information

Inventor after: Li Peng

Inventor before: Liu Dong

COR Change of bibliographic data
TA01 Transfer of patent application right

Effective date of registration: 20160623

Address after: 276800 Shandong Province, Rizhao City Donggang district four North Road and Yanzhou Road intersection

Applicant after: SHANDON LINGXIN INFORMATION TECHNOLOGY CO.,LTD.

Address before: 610041, No. 30, No. 1, building 1, 2, No. 177, Tianfu Road, Chengdu hi tech Zone, Sichuan

Applicant before: CHENGFU MEILIAN WEIZHI TECHNOLOGY CO., LTD.

C14 Grant of patent or utility model
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20191224

Address after: Room 3105, floor 31, building 6, Shun Tai Plaza, No. 2000, Shunhua Road, high tech Zone, Jinan City, Shandong Province

Patentee after: Shandong Shunyuan Taishan Finance Leasing Co., Ltd.

Address before: 276800 Shandong Province, Rizhao City Donggang district four North Road and Yanzhou Road intersection

Patentee before: Shandong Leadthing Information Science and Technology Co., Ltd.

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20220321

Address after: 276800 intersection of Beiyuan 4th Road and Yanzhou Road, Donggang District, Rizhao City, Shandong Province

Patentee after: Shandong Leadthing Information Science and Technology Co.,Ltd.

Address before: Room 3105, 31 / F, building 6, Shuntai Plaza, 2000 Shunhua Road, high tech Zone, Jinan City, Shandong Province

Patentee before: Shandong Shunyuan Taishan Finance Leasing Co.,Ltd.