CN104537844A - Vehicle license plate recognition system for traffic violation detection - Google Patents
Vehicle license plate recognition system for traffic violation detection Download PDFInfo
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- CN104537844A CN104537844A CN201510038020.2A CN201510038020A CN104537844A CN 104537844 A CN104537844 A CN 104537844A CN 201510038020 A CN201510038020 A CN 201510038020A CN 104537844 A CN104537844 A CN 104537844A
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- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000012937 correction Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 230000001788 irregular Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 230000033228 biological regulation Effects 0.000 description 6
- 238000011161 development Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 206010039203 Road traffic accident Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- IXSZQYVWNJNRAL-UHFFFAOYSA-N etoxazole Chemical compound CCOC1=CC(C(C)(C)C)=CC=C1C1N=C(C=2C(=CC=CC=2F)F)OC1 IXSZQYVWNJNRAL-UHFFFAOYSA-N 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
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- 230000006698 induction Effects 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
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- 238000012423 maintenance Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
- G08G1/0175—Detecting movement of traffic to be counted or controlled identifying vehicles by photographing vehicles, e.g. when violating traffic rules
Abstract
The invention provides a vehicle license plate recognition system for traffic violation detection for obtaining vehicle information in traffic violation and recognizing the license plate of an illegal vehicle at the crossroad. The vehicle license plate recognition system comprises a video monitoring unit, an angle information synchronization unit and a video collection unit; the video collection unit comprises an even number of recognition units which are arranged into a ring; each recognition unit comprises a wireless data transmission device and a video collection device; and each video collection device has a high-definition shooting mode and an ordinary-definition shooting mode. According to the vehicle license plate recognition system, the shooting definition of the video collection device can be adjusted according to the angle information synchronization unit, so that the success rate of license plate recognition is greatly increased; and unnecessary waste of a video storage space is reduced.
Description
Technical field
The present invention relates to field of license plate recognition, more specifically, relate to a kind of Vehicle License Plate Recognition System for peccancy detection.
Background technology
Along with the high speed development of Chinese national economy, domestic motor vehicles, highway, urban road, parking lot etc. are more and more, the requirement of traffic control, safety management is also increased day by day, intelligent transportation system ITS (Intelligent Transportation System) has become the development trend of 21 century control of traffic and road, is more and more subject to people's attention.Wherein Vehicle License Plate Recognition System provides efficient, practical means as the intelligent traffic administration system that the core of intelligent traffic administration system is robotization, traffic monitoring can be widely used in, the aspect such as site survey of traffic accident, break in traffic rules and regulations record automatically, criminal tracking, highway toll collection system, the management of parking lot automatic safe, Itellectualized uptown management, significant to the management level and automaticity improving field of traffic.
Although there has been a lot of seemingly ripe Car license recognition product at present, but really can apply to actual Car license recognition product appears at abroad mostly, and, inside various for China's car plate standard comprises baroque Chinese character, car plate by the problem still fine solution of neither one such as stained or deliberately block, make at present that domestic neither one of going back can efficient, stable, the Car license recognition product that discrimination is high of all weather operations under various outdoor conditions.Therefore, this vacancy attracts numerous people and goes constantly to carry out studying and exploring.The Car license recognition product occurred for current China is in the majority to identify the mode of car plate to rely on hardware trigger system to carry out video capture, and as magnetic induction loop, infrared, radio frequency etc., its toggle rate is higher, but the installation and maintenance cost of hardware device is higher.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 more and more receives publicity, its advantage is that of avoiding the dependence of hardware device thus reduces cost, its shortcoming is that operand is large, the image carrying out identifying is the frame in video, and this image is by the impact of vehicle traveling direction, speed and other external interference, and the picture quality obtained is not as still image.
Summary of the invention
Technical matters to be solved by this invention be when how to improve vehicle peccancy obtain information of vehicles, especially license board information, success ratio.In order to solve the problem, the invention provides following technical scheme: a kind of Vehicle License Plate Recognition System for peccancy detection, car plate for the vehicles peccancy to crossroad identifies, comprise video monitor unit, angle information lock unit and video acquisition unit, described video acquisition unit comprises the even number recognition unit being arranged to annular, each recognition unit includes wireless data transmission device and video acquisition device, described video acquisition device has high-definition shooting pattern and ordinary sharpness screening-mode, for taking automobile video frequency and timestamp being added in gathered video, the video acquisition device of these recognition units arranges in diagonal angle between two and each video acquisition all carries out video acquisition in units of four video acquisition devices simultaneously, described Vehicle License Plate Recognition System also comprises clock check and correction unit, for making described timestamp with the time synchronized of video monitor unit, described angle information lock unit is used for determining which video acquisition device is set to high-definition shooting pattern, which video acquisition device is set to ordinary sharpness screening-mode.
Further, described video monitor unit comprises video analysis unit and video storage unit.
Further, described video storage unit comprises video compressing unit and storer.
Further, described recognition unit determines the video acquisition device that will be unlocked according to angle information lock unit.
Further, described Vehicle License Plate Recognition System also comprises lighting unit.
Further, described annular can also be Else Rule or irregular shape.
The invention has the beneficial effects as follows: the shooting clear degree that can adjust video acquisition device according to angle information lock unit, thus greatly improve the success ratio of Car license recognition, and reduce the waste in unnecessary video storage space.
Accompanying drawing explanation
Fig. 1 shows the structured flowchart of the preferred embodiment of the Vehicle License Plate Recognition System for peccancy detection of the present invention.
Fig. 2 shows the duty example of the video acquisition device when craspedodrome lamp turns green.
Embodiment
As shown in Figure 1, Vehicle License Plate Recognition System for peccancy detection comprises video monitor unit, angle information lock unit and video acquisition unit, described video acquisition unit comprises the even number recognition unit being arranged to annular, each recognition unit includes wireless data transmission device and video camera, described video camera has high-definition shooting pattern and ordinary sharpness screening-mode, for taking automobile video frequency and timestamp being added in gathered video, the video camera of these recognition units arranges in diagonal angle between two and each video acquisition all carries out video acquisition in units of four video cameras simultaneously, described Vehicle License Plate Recognition System also comprises clock check and correction unit, for making 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 video or the strong server of Image Information Processing ability or workstation, such as, and graphics workstation.
Described angle information lock unit is used for determining which video camera is set to high-definition shooting pattern, and which video camera is set to ordinary sharpness screening-mode.The standard determined is: according to two points that the direction at the place, track that may occur breaking rules and regulations is crossing with described annular, high-definition shooting pattern is arranged to the video camera of each two contiguous video acquisition unit, and other video capture mode is arranged to the screening-mode of ordinary sharpness.This angle information lock unit is obtain according to the traffic responsive signal of crossroad to the shooting mode of camera switching signal that each video acquisition unit sends.Such as, as shown in Figure 2, the craspedodrome lamp when crossroad 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 intersection points in the annular that the direction of left turn lane and right-turn lane is formed with each recognition unit respectively, and each near intersections exists two two video cameras nearest apart from this intersection point.Therefore, unlatching four video cameras are entered high-definition shooting pattern by the direction of Through Lane and right-turn lane respectively.In Fig. 2, the circular annular representing all recognition units formation, by the intersection point of horizontal, vertical orthogonal two dotted lines in this circular center of circle, i.e. the center of circle, represents the center of crossroad.The center line of left turn lane becomes miter angle with the horizontal direction (overlooking) of crossroad, and the center line of right-turn lane becomes miter angle with the horizontal direction (overlooking) of crossroad.Left turn lane center line and right-turn lane center line are at present and just occur situation violating the regulations once there be vehicle to cross.Therefore, once the ground coil of left turn lane and right-turn lane has sensed that vehicle crosses, be then judged to now to occur vehicle peccancy situation.That is, now, video monitor unit receives this signal, and control angle information synchronizing unit opens the high-definition shooting pattern of 8 video cameras as shown in Figure 2, and the video camera controlling 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 realize according to the solenoid valve in each recognition unit.This solenoid valve receives the signal from angle information lock unit, and then produces the action of solenoid valve.Solenoid valve changes the position of the screening-mode change-over switch of video camera, thus change video camera changes to ordinary sharpness screening-mode from high-definition shooting pattern, or conversely.
Described clock check and correction unit makes the time of the video camera of each recognition unit and the time synchronized of video monitor unit in each integral point moment, is conducive to the accuracy during video decomposition framing of situation violating the regulations like this.
When video is wirelessly transferred to video monitor unit, vision signal is encoded to the video of H.264 form by through video filtering and coding circuit plate by hardware, simultaneously through chronotron by time delay a period of time (such as 20 seconds).Video analysis unit preserves the copy of the video in this section of delay time in its buffer memory.Between this time delay, if there is situation violating the regulations, then video analysis unit is according to the moment occurred violating the regulations, decompose frame by frame in the above-mentioned moment through above-mentioned video copy, and selecting wherein to obtain the most clearly to license plate image through image processing algorithm, some images are (preferably, be as the criterion with 4 two field pictures before sharpness sequence), together video storage unit is saved in together with the video without above-mentioned coding from video camera to this some two field picture.Video storage unit comprises video compressing unit and storer, and in order to more save video storage space, video will be saved in storer (such as, magnanimity hard disk) after video compressing unit is compressed again.
Preferably, Vehicle License Plate Recognition System also comprises lighting unit.When video camera enters high-definition shooting pattern, video camera also controls lighting unit floor light, the problem that the car plate original image sharpness caused to avoid the reason such as ambient black, weather is not high.
Above embodiment is only that the present invention is described, and is not intended to limit the present invention.Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if belong within the scope of the claims in the present invention and equivalent technologies thereof to these amendments of the present invention and modification, then the present invention is also intended to comprise these change and modification.
Claims (6)
1. the Vehicle License Plate Recognition System for peccancy detection, car plate for the vehicles peccancy to crossroad identifies, comprise video monitor unit, angle information lock unit and video acquisition unit, it is characterized in that, described video acquisition unit comprises the even number recognition unit being arranged to annular, each recognition unit includes wireless data transmission device and video acquisition device, described video acquisition device is used for timestamp to add in gathered video, the video acquisition device of these recognition units arranges in diagonal angle between two and each video acquisition all carries out video acquisition in units of four video acquisition devices simultaneously, described Vehicle License Plate Recognition System also comprises clock check and correction unit, for making described timestamp with the time synchronized of video monitor unit, described angle information lock unit is used for obtaining traffic signal light condition change information from video monitor unit and being transferred to video acquisition unit.
2. the Vehicle License Plate Recognition System for peccancy detection according to claim 1, is characterized in that, described video monitor unit comprises video analysis unit and video storage unit.
3. the Vehicle License Plate Recognition System for peccancy detection according to claim 2, is characterized in that, described video storage unit comprises video compressing unit and storer.
4. the Vehicle License Plate Recognition System for peccancy detection according to claim 1, is characterized in that, described recognition unit determines the video acquisition device that will be unlocked according to angle information lock unit.
5. the Vehicle License Plate Recognition System for peccancy detection according to claim 1, is characterized in that, described Vehicle License Plate Recognition System also comprises lighting unit.
6. the Vehicle License Plate Recognition System for peccancy detection according to claim 1, is characterized in that, described annular can also be Else Rule or irregular shape.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510038020.2A CN104537844B (en) | 2015-01-26 | 2015-01-26 | Vehicle License Plate Recognition System for peccancy detection |
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| CN201510038020.2A CN104537844B (en) | 2015-01-26 | 2015-01-26 | Vehicle License Plate Recognition System for peccancy detection |
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Cited By (5)
| 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 |
| CN109035805A (en) * | 2018-09-21 | 2018-12-18 | 深圳市九洲电器有限公司 | A kind of intelligent identification Method and device of license plate number |
| CN110533921A (en) * | 2019-08-06 | 2019-12-03 | 北京万集科技股份有限公司 | The triggering grasp shoot method and system of vehicle |
| CN111223302A (en) * | 2018-11-23 | 2020-06-02 | 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 |
| CN112233421A (en) * | 2020-10-15 | 2021-01-15 | 胡歆柯 | Intelligent city intelligent traffic monitoring system based on machine vision |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040222904A1 (en) * | 2003-05-05 | 2004-11-11 | Transol Pty Ltd | Traffic violation detection, recording and evidence processing system |
| 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 |
-
2015
- 2015-01-26 CN CN201510038020.2A patent/CN104537844B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040222904A1 (en) * | 2003-05-05 | 2004-11-11 | Transol Pty Ltd | Traffic violation detection, recording and evidence processing system |
| 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 |
Cited By (6)
| 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 |
| CN109035805A (en) * | 2018-09-21 | 2018-12-18 | 深圳市九洲电器有限公司 | A kind of intelligent identification Method and device of license plate number |
| 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 |
| CN111223302A (en) * | 2018-11-23 | 2020-06-02 | 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 |
| CN110533921A (en) * | 2019-08-06 | 2019-12-03 | 北京万集科技股份有限公司 | The triggering grasp shoot method and system of vehicle |
| CN112233421A (en) * | 2020-10-15 | 2021-01-15 | 胡歆柯 | Intelligent city intelligent traffic monitoring system based on machine vision |
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| CN104537844B (en) | 2016-08-24 |
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Inventor after: Li Peng Inventor before: Liu Dong |
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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. |
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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. |
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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. |