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CN103295402A - Intelligent traffic overspeed snapshot system - Google Patents

Intelligent traffic overspeed snapshot system Download PDF

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Publication number
CN103295402A
CN103295402A CN2013102716539A CN201310271653A CN103295402A CN 103295402 A CN103295402 A CN 103295402A CN 2013102716539 A CN2013102716539 A CN 2013102716539A CN 201310271653 A CN201310271653 A CN 201310271653A CN 103295402 A CN103295402 A CN 103295402A
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China
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module
regulations
car plate
violating
violation
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CN2013102716539A
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Chinese (zh)
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李遵杰
周爱明
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Guangdong Hilipu Road And Bridge Information Engineering Co ltd
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Guangdong Hilipu Road And Bridge Information Engineering Co ltd
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Priority to CN2013102716539A priority Critical patent/CN103295402A/en
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Abstract

The invention discloses an intelligent traffic overspeed snapshot system, which comprises a plurality of sets of highway radar speed measurement snapshot systems arranged at a plurality of monitoring points, a picture information remote transmission system and at least one set of violation information processing system; the highway radar speed measurement snapshot system comprises a front-end acquisition part, a radar speed measurement snapshot processing part of a middle control machine and a remote transmission part; the front-end acquisition part consists of a radar velocimeter, a camera and a light supplement lamp; the radar speed measurement snapshot processing part of the middle central control machine comprises an overspeed snapshot license plate recognition module, an image acquisition module, a light supplement lamp control module, a violation snapshot license plate recognition module, a violation video recording module and a local picture storage/update module; the remote transmission part is realized by a wireless transmission picture/information/video data moduleThe picture information remote transmission system adopts a CDMA wireless network; the violation information processing system is arranged in a traffic branch business hall or/and a provincial hall control center.

Description

Intelligent transportation overspeed snapping system
Technical field
The present invention relates to automatic detection range technology, refer in particular to a kind of intelligent transportation overspeed snapping system.
Background technology
Along with growing stronger day by day of overall national strength, nowadays highway communication has become the main artery of national economic development also in fast development.Whole nation highway is crisscross, as knits like drawing, and is little of spider web, big like brocade of Zhang nationality, in any case describe all within reasonly, but that the problem of thereupon bringing is traffic administration is increasingly sophisticated, various illegal, break rules and regulations to emerge in an endless stream, control endless repeatly.This uses better technological means to solve this problem with regard to needs traffic and public security department.
Summary of the invention
In view of this, the present invention is directed to the disappearance of prior art existence, its fundamental purpose provides a kind of intelligent transportation overspeed snapping system, utilize military equipments such as radar, audio communication photoelectricity, hi-tech such as combining image processing, pattern-recognition, artificial intelligence and computer software and hardware, wireless network are integrated into a cover and have the most advanced radar velocity measurement capturing system in the world today, for public security is administered traffic, is corrected violating the regulations, Concern Mafia investigation etc. law enforcement means the most efficiently are provided, for the safe operation of the complicated day by day network of communication lines provides sound assurance.
For achieving the above object, the present invention adopts following technical scheme:
Plant intelligent transportation overspeed snapping system, comprise the many covers highway radar velocity measurement capturing system that is installed in a plurality of monitoring points, pictorial information distance transmission system and at least one cover violation information disposal system; Described highway radar velocity measurement capturing system comprises radar velocity measurement candid photograph processing section and the teletransmission part of control machine in front-end collection part, the centre; This front-end collection part is made up of radar meter, video camera, light filling lamp; The radar velocity measurement candid photograph processing section of control machine comprises overspeed snapping car plate identification module, image capture module, light filling lamp control module, car plate identification module, picture recording module violating the regulations, the local picture-storage/update module of capturing violating the regulations in the centre; This remote transmission partly relies on wireless transmission picture/information/Video Document module to realize Described pictorial information distance transmission system adopts the cdma wireless network; Described violation information disposal system is arranged on communicating branch's business hall or/and province Room control center.
Preferably, described radar meter is selected the HD125 velocity radar for use, built-in two the emission radars of this HD125 radar meter and a receiving radar.
Preferably, described video camera selects for use high-sensitivity digital to handle colour TV camera.
Preferably, be provided with detection module violating the regulations in the described radar meter, detection violating the regulations has overspeed violation to detect automatically and artificial assistance detects, overspeed violation is detected automatically by radar meter, when radar meter detects speed by vehicle and surpasses predetermined restricted speed, produce one and capture signal, the notice video camera carries out the image of real-time grasp shoot overspeed violation vehicle; When not according to lanes, violating the regulations turn around, traffic offence behaviors such as parking offense, cross-pressure double amber lines are captured by the artificial assistance detection system.
Preferably, be provided with image in the described video camera and capture module, when detection module violating the regulations detects violating the regulations signal, start the candid photograph program, finish the shooting of close-up shot image violating the regulations, and be compressed into the jpeg file form and be saved in the database, information such as record place violating the regulations, time violating the regulations, type of violation simultaneously are if overspeed violation also can record maximum speed limit, actual measurement speed, hypervelocity percent information.
Preferably, be provided with the aperture control module in the described light filling lamp, according to the variation of day illuminance, adjust the exposure of camera automatically.
Preferably, described light filling lamp control module makes synchronizing signal or the external pulse signal of the stroboscopic frequency of light filling lamp and video camera synchronous, and this light filling lamp control module, is controlled the light filling lamp automatically and extinguished daytime as gauge tap with photoresistance, and light night.
Preferably, described overspeed snapping car plate identification module and the car plate identification module of capturing violating the regulations be based on a Vehicle License Plate Recognition System, and this Vehicle License Plate Recognition System comprises video input manager module, car plate locating module, the positive module of car plate sedan-chair, character cutting module, character recognition module, decision-making module, outgoing management module, car plate tracking module, on-line study module as a result; The car plate recognition function that this Vehicle License Plate Recognition System is finished has: Chinese Character Recognition, similar character recognition, from the deformation of normal moveout correction car plate, to the identification of the influence of wide, the intelligentized video camera of the accommodation of car plate size and light filling control technology, shade and the influence of eliminating light and inhibition, pedestrian and non motorized vehicle.
Preferably, the car plate identification process of described Vehicle License Plate Recognition System comprises five steps of image acquisition, car plate location, Character segmentation, optical character identification, output recognition result of vehicle.
Preferably, described violation information disposal system has two groups, and wherein one group is arranged on province Room control center, is become with the violation information database servers group by interim violation information reception database server, desk checking system; Another group violation information disposal system is arranged on communicating branch's business hall, is made up of violation information database server, management system violating the regulations, touch screen query system, large screen display.
 
The present invention compared with prior art has tangible advantage and beneficial effect, particularly, as shown from the above technical solution, radar velocity measurement capturing system of the present invention is identified as core technology automatically with car plate, can be installed in highway both sides or isolation strip central authorities easily, automatically passing vehicle is implemented not stop test the speed, candid photograph, car plate identification, blacklist be than equity work, implement interception, on-the-spot punishment or candid photograph image and the car plate identifying information of vehicles peccancy be kept in the database in order to law enforcement afterwards by the Realtime Alerts prompting; The system reliability height, practical, dismounting is simple, easy to operate.This system can improve the work efficiency of highway law enforcement greatly, is that public security department fights crime, breaks rules and regulations, the competent assistant of unlawful practice.
System of the present invention can realize following function:
The multiple tracks monitoring: the radar velocity measurement system can monitor the driving vehicle of two-way 10 tracks (but automatic or manual division), 1.8~76 meters of measuring speed and taking snap pictures distances.
Overspeed snapping: utilize the radar velocity measurement function, all vehicles through area covered by the radar speed-detecting network are tested the speed, when the speed of a motor vehicle of vehicle surpasses the boundary of regulation, carry out overspeed alarm, automatically capture the image of over-speed vehicles simultaneously and be kept at hard disk, and record time, place, vehicle commander, car Taoist monastic name, hypervelocity value and the speed limit of this vehicle peccancy.
Intelligent lighting control: use the complex light technology, reduce the primary colors of car plate better, improve complete (in vain) look LED lamp color rendition effect that is beyond one's reach, (LED quantity>40 more are applicable to the light filling of point of fixity position); With audio video synchronization, prevent dazzling, reduce power consumption and thermal value, use synchronizing signal or the external pulse signal of video camera to make video camera and light filling lamp stroboscopic Frequency Synchronization, so both obtained the effect of light filling, reduced the power consumption of light filling lamp again.
Car plate identification: by the vision signal of video camera, hypervelocity or all vehicular traffics are carried out automatic car plate identification, can identify the number-plate number and car plate color.Can the manual amendment for the car plate that can't correctly identify.
Punishment on contravention of regulation: system can be sent to picture and the data message of scene evidence obtaining in the database of command centre by wireless network, utilizes the background process program to carry out afterwards notice, notify or enter corresponding law enforcement program.
Query statistic: system has local data library inquiry, statistics and printing function.Inquiry comprises the inquiry of various appointed information and the comprehensive inquiry of User Defined condition; Statistics comprises by the statistics of clause violating the regulations and freely adding up of User Defined condition; The result of inquiry and statistics can print by table format in accordance with regulations.
Remote inquiry: be connected other relevant information of inquiry designated vehicle by external data interface with long-range.As: the registration information of vehicle, vehicle annual test situation, whether scrap etc.
Safety management function: user profile comprises user's name, password, authority, department, post etc.; System provides the subscriber information management function to comprise increase, deletion and change; Have to operating personnel's work on duty inquire about, statistical management.
Database maintenance and management: database maintenance comprises initialization, backup and the export function of database, can be as required and renewal of the message exchange of province's Room database, dump, local data base etc.; Can be regulated voluntarily in software by the user local historical record holding time and capacity, the vehicle pass-through record that surpasses the holding time is handled automatically by management software.
For more clearly setting forth architectural feature of the present invention and effect, the present invention is described in detail below in conjunction with accompanying drawing and specific embodiment.
Description of drawings
Fig. 1 is the grid topological diagram of the present invention's embodiment;
Fig. 2 is radar velocity measurement capturing system building-block of logic among the present invention's the embodiment;
Fig. 3 is the schematic diagram of radar meter among the present invention's the embodiment;
Fig. 4 is car plate identification process figure among the present invention's the embodiment;
Fig. 5 is car plate identification module theory diagram among the present invention's the embodiment;
Fig. 6 is the theory diagram of violation information disposal system among the present invention's the embodiment;
Fig. 7 is the application process synoptic diagram among the present invention's the embodiment.
The accompanying drawing identifier declaration:
1, highway radar velocity measurement capturing system 2, pictorial information distance transmission system
3, violation information disposal system 4, radar meter
5, video camera 6, light filling lamp
7, overspeed snapping car plate identification module 8, image capture module
9, light filling lamp control module 10, the car plate identification module of capturing violating the regulations
11, picture recording module 12 violating the regulations, local picture-storage/update module
13, wireless transmission picture/information/Video Document module
14, video input manager module 15, car plate locating module
16, the positive module 17 of car plate sedan-chair, character cutting module
18, character recognition module 19, decision-making module as a result
20, outgoing management module 21, car plate tracking module
22, on-line study module.
 
Embodiment
Please refer to shown in Figure 1ly, the concrete structure that it has demonstrated the present invention's preferred embodiment comprises the many covers highway radar velocity measurement capturing system 1, pictorial information distance transmission system 2 and at least one cover violation information disposal system 3 that are installed in a plurality of monitoring points.This violation information disposal system 3 is arranged on places such as communicating branch's business hall, province Room control center, convenient inquiry.
Wherein, as shown in Figure 2, described highway radar velocity measurement capturing system 1 comprises front-end collection part, middle radar velocity measurement candid photograph processing section and teletransmission part.
This front-end collection partly comprises radar meter 4, video camera 5, light filling lamp 6; It is small-sized industrial computer that this centre radar velocity measurement is captured the processing section, comprises overspeed snapping car plate identification module 7, image capture module 8, light filling lamp control module 9, car plate identification module 10, picture recording module 11 violating the regulations, local picture-storage/update module 12, the wireless transmission picture/information/Video Document module 13 of capturing violating the regulations.
In the present embodiment, radar meter 4 is selected the HD125 velocity radar for use, as shown in Figure 3, these HD125 radar meter 4 built-in two emission radars and receiving radars, detecting two surveyed areas of projection on the road surface, just be equivalent to two coils and be placed on the detection road surface, all can launch a microwave signal to HD125 through the vehicle in the monitored area, handle the data that can obtain being correlated with through data.
HD125 radar meter 4 is with 1,000,000 radar waves of each second emission, energy is positioned vehicle accurately, the barriers such as antiglare shield, grove and metal guardrail that can cross over simultaneously central partition monitor the vehicle that part is blocked, thereby greatly reduce the isolation strip to the influence of monitoring accuracy.In the application of highway or bridge, HD125 only needs 1.8 meters amount of side-shift just can accurately monitor out the traffic data in two-way 10 tracks.(amount of side-shift refers to that the position of column is to the distance that detects the track edge line).HD125 can detect the traffic data in two-way 10 tracks, comprise traffic datas such as vehicle flowrate, the bicycle speed of a motor vehicle, average velocity, vehicle classification, lane occupancy ratio, it is detecting two microwave bands of projection on the road, whenever vehicle through out-of-date, its can accurately calculate the speed of each car and the traffic data that other monitors according to the time of vehicle by two radars, can see real-time data by software.HD125 detects for the basis according to vehicle, the no matter Anywhere enforcement of vehicle in surveyed area, the capital only shows a car, even in the middle of two tracks, exercise, also not can as analog machine monitor two cars or the monitoring less than vehicle, thereby more improved one-lane vehicle flowrate precision.HD125 identifies the track automatically by management software, and in minutes finishes location and testing quickly and accurately, has saved a large amount of installations the time is set.HD125 supports many data of different types communication modes, built-in RS-232 and RS-485 port, support is from 9600~921.6KBPS(byte per second) between message transmission rate, select assembly parts to also have built-in CDPD modulator-demodular unit, radio modem, Smart LAN dedicated ethernet interface.HD125 has used state-of-the-art RF design, surface-mounted technology, and the integrated and advanced signal processing algorithm of digital hardware, these technology make it have higher reliability and stability.The all RF circuit of HD125 all adopt integrated printed circuit design, thus the inefficacy of having avoided tie point and connecting line to cause; Adopt full automatic manufacture craft, eliminated because the instability problem that manual assembly unit brings
Described video camera 5 selects for use high-sensitivity digital to handle colour TV camera 5, and it possesses high light BLC (Spot BLC) function; Adopt wide induction 1/2 inch CCD of up-to-date exploitation, can carry out inner RGB to image and handle; Highest resolution arrives 530 lines; Have 8 grades of electronic shutters, the control of third gear automatic gain and variable electronic shutter.
Be provided with detection module violating the regulations in the described radar meter 4, detection violating the regulations has overspeed violation to detect automatically and artificial assistance detects.Overspeed violation is detected automatically by radar meter 4, when radar meter 4 detects speed by vehicle and surpasses predetermined restricted speed, produces one and captures signal, notifies video camera 5 to carry out the image of real-time grasp shoot overspeed violation vehicle; Not according to lanes, violating the regulations turn around, traffic offence behaviors such as parking offense, cross-pressure double amber lines are captured by the artificial assistance system, when the operator find these violating the regulations after, finish the candid photograph task by the operation computing machine.
Be provided with image in the described video camera 5 and capture module, when detection module violating the regulations detects violating the regulations signal, start the candid photograph program, finish the shooting of close-up shot image violating the regulations, and be compressed into the jpeg file form and be saved in the database, overspeed violation records information such as place violating the regulations, time violating the regulations, type of violation simultaneously, if also will record information such as maximum speed limit, actual measurement speed, hypervelocity ratio.
Be provided with the aperture control module in the light filling lamp 6, according to the variation of Sino-Japan illuminance every day, adjust the exposure of camera at any time, the picture quality the best that photographs also will be taken into account night simultaneously.The process of adjusting exposure is regularly (to be generally 30 minutes) monochrome information L[3~5 of gathering image from the appointed area (such as sky or road surface) of video image].
L?=?0.?222?r?+?0.?707?g?+?0.?071b
Wherein: r, g, b are respectively the values of coloured image three primary colors (R), (G), (B).Give brightness L setting threshold scope T1, T2, when T1<L<T2, aperture does not adjust; If the L value exceeds threshold range, then transmit control signal to digital I/O plate, adjust the amount of spin of aperture by control circuit and control aperture.
Described light filling lamp control module 9 makes synchronizing signal or the external pulse signal of the stroboscopic frequency of light filling lamp 6 and video camera 5 synchronous, has so both obtained the effect of light filling, has reduced the power consumption of light filling lamp 6 again, reaches to prevent dazzling, as to reduce power consumption and thermal value purpose.This light filling lamp control module 9, is controlled LED light filling lamp automatically and is extinguished for 6 daytimes as gauge tap with photoresistance, and light night.Use industrial computer by RD232 control LED lamp or directly use high-low level control, control the LED switch with this.It possesses Flash Mode (just bright during candid photograph) and farthest reduces power consumption and prolong the LED life-span.It uses the complex light technology, use the LED mixing geometric layout of multiple specific wavelength (color), reduce the primary colors of car plate better, improve complete (in vain) look LED lamp color rendition effect that is beyond one's reach, (LED quantity>40, more be applicable to point of fixity position light filling).
Described image capture module 8(figure capture card) gathers by video camera 5 picture shot and video information, picture and video information are transferred in the industrial computer, shown at screen by application program.The image of this image capture module 8 shows that acquisition resolution is 1024*768, can realize real-time switching/scanning, the while acquisition process of multi-channel video signal.Video camera 5 has automatically and the manual shutter regulatory function, according to on-the-spot luminance brightness the shutter of video camera 5 is adjusted to an optimum value automatically.
Described overspeed snapping car plate identification module 7 and the car plate identification module 10 of capturing violating the regulations all are based on license plate recognition technology design, license plate recognition technology (Vehicle License Plate Recognition, VLPR) being a computer vision and mode identification technology important subject in modern intelligent transportation system, is to realize the intelligentized important step of traffic administration.It is that it utilizes each automobile that unique number-plate number is arranged, and carries out the identification of the number-plate number by video camera 5 captured vehicle images based on the intelligent identifying system of technology such as Digital Image Processing, pattern-recognition, computer vision.Under the situation that does not influence vehicle condition, computing machine is finished the identification of car plate automatically, thereby can reduce the traffic administration work complexity.
Adopt the flow process of computer vision technique identification car plate as shown in Figure 4, comprise five steps of image acquisition, car plate location, Character segmentation, optical character identification, output recognition result of vehicle.The acquisition mode of vehicle image is to adopt natural light and infrared light image collection identification, and natural light and infrared light can not produce bad psychological impact to human body, can not produce new electronic pollution to environment yet, belong to green environmental protection technique.The natural light route refers to utilize daytime available light, adopts the floor light light source night, with colour TV camera 5 collection vehicle true color images, with coloured image analysis and processing method identification car plate.Natural light true color recognition technology route, consistent with human eye sensitization custom, and true color image can reflect vehicle and the real image information of surrounding environment thereof, not only can be used for identifying car plate, and can be used for identifying vehicle features such as car plate color, vehicle flowrate, vehicle, car color.With the image that a video camera 5 is gathered, realize all front end elementary video information acquisitions, identification and artificial assistant images evidence obtaining differentiation simultaneously, can prospectively be following intelligent transportation system engineering spare interface.
Overspeed snapping car plate identification module 7 and the software configuration of capturing car plate identification module 10 formed Vehicle License Plate Recognition System violating the regulations comprise video input manager module 14, car plate locating module 15, the positive module 16 of car plate sedan-chair, character cutting module 17, character recognition module 18, decision-making module 19, outgoing management module 20, car plate tracking module 21, on-line study module 22 as a result as shown in Figure 5.The license plate recognition technology function that this system finishes has: Chinese Character Recognition, similar character recognition, from the deformation of normal moveout correction car plate, to the identification of the influence of wide, the intelligentized video camera 5 of the accommodation of car plate size and light filling control technology, shade and the influence of eliminating light and inhibition, pedestrian and non motorized vehicle etc.The characteristics of system are: identify the domestic current number-plate number and color automatically, be subjected to the influence of environment, the speed of a motor vehicle, car plate position low; Vehicle capture rate height can detect the vehicle of 0-250 kilometer/hour speed; Daytime, recognition accuracy was greater than 98%, and night, recognition accuracy was greater than 90%; Car plate is repaired recognition function automatically, can identify imperfect car plate contaminated, damaged, distortion; Support picture recognition and video flowing to look for car identification dual mode automatically; Picture format is supported multiple forms such as JPEG, BMP, image pick-up card collection.Dll interface or the OCX control of Visual C++ are provided.The technical indicator of Vehicle License Plate Recognition System is as shown in table 1:
Table 1
The vehicle capture rate >99%
The licence plate correct localization >98%
The character recognition accuracy >95%
Recognition speed <50mm
Adapt to the speed of a motor vehicle 0-200 kilometer/hour
But the identifying plate hindsight is very little 80-200 horizontal pixel point
Best licence plate size 120-160 horizontal pixel point
Details are as follows for the function of described license plate recognition technology:
Chinese Character Recognition: the Chinese character stroke on the car plate is more, character quantity is also many, when car plate in video image proportion hour Chinese character can be very fuzzy, be difficult to identification.According to stroke feature, contour feature, the architectural feature of Chinese character, utilize the neuroid technology to help us accurately to recognize Chinese character.
Similar character recognition: a difficult point of license plate recognition technology is to distinguish similar character, for example Z and 2, A and 4, O and Q, O and D, 8 and B etc.For these characters, the car plate identification module can extract more trickleer features, has increased one deck feature when running into similar character and has judged, can well distinguish similar character in the practical application.
From the deformation of normal moveout correction car plate: because that the shooting angle of video camera 5 and car plate are installed is lack of standardization, to cause car plate be not rectangle but parallelogram in image and certain angle of inclination is arranged, and this will be very big to the influence of the Character segmentation link in the license plate recognition technology.It is adaptive that the deformation of car plate is proofreaied and correct, but not fixed form can make car plate identification can be applied to multiple occasion from the deformation of the various trend of normal moveout correction in certain shooting angle scope.
Accommodation to the car plate size is wide: for interference, raising discrimination and the recognition speed that reduces non-car plate factor, need to limit the size of car plate in image in the location technology of car plate identification, if the topography that navigates to exceeds set scope, namely think it is the disturbing factor of non-car plate.Install in the application scenario of lower vehicle-mounted movement for video camera 5, the difference of the size of automotive license plate in video image is very big, and the too small meeting of limited field causes seriously leaking car.Outstanding recognizer can obtain high recognition to the big or small car plate that horizontal proportion accounts in entire image 1/8 to 1/4 scope in actual applications.
Intelligentized video camera 5 and light filling control technology: the car plate discrimination is relevant with recognizer on the one hand, depends on the quality of video image on the other hand.Sometimes discrimination is higher when the cloudy day, descend on the contrary even acomia identification when fine, this generally is at the monitoring Demand Design because of video camera 5, if allow video camera 5 regulate voluntarily, can only regulate the mean flow rate of entire image, can be subjected to the influence of backlight, direct light by day and to cause the topography of car plate to be crossed dark or bright excessively, can be subjected to the influence of car headlight and cause car plate to cross dark and dazzle is arranged at night.Light condition is bad, and the car plate local luminance in the image that photographed is improper, causes the information loss of car plate, and good again recognizer also can't be identified correctly.
Intelligentized video camera 5 Closed loop Control and night the light filling technology, the variation that can follow the tracks of light daytime overcomes backlight, direct light, the influence of eliminating automobile front lamp night is light filling initiatively.By this means, make under various light condition, can both collect and be conducive to the image identified as far as possible clearly, improved the round-the-clock actual discrimination of system.
The influence of shade and elimination: under the daylight shade of vehicle can cause flase drop or capture the position improper.Because judge violating the regulations according to be detect vehicle the position whether with the pavement strip distance less than certain threshold value.Shade can impact to the vehicle location location, causes system's mistake to clap.The method that solves is to utilize poor greater than vehicle and road surface average gray of the difference that there is its average gray under the unblanketed situation on the detection zone road surface, adopt the automatic detection method of dynamic threshold to select suitable detection threshold for use, difference to average gray detects, judgement is target violating the regulations or shade, thereby eliminates the influence of most of shade.
The influence of light and inhibition: similar to the shade situation, vehicle at night light disturbs also can cause the mistake bat.Can utilize that vehicle light is bigger than vehicle brightness, light and vehicle respectively with the characteristics of difference in different range of detection zone road surface average gray, adopt the automatic detection method of dynamic threshold, difference to average gray is differentiated, and suppresses the purpose that light disturbs thereby reach.
Pedestrian, bicycle: the influence of pedestrian and non motorized vehicle is that they cross road.Solution is tracked mobile target, determines whether it is target violating the regulations by the differentiation to movement objective orbit.Way is to introduce unnecessary some mark cancellation techniques in track algorithm: in each image of gathering, may have a plurality of moving targets, form a plurality of somes marks, these marks are not can both related with the track of target violating the regulations or initial new track.For having neither part nor lot in related and initial some mark, placeholder record is got off, in the processing of next sample graph picture point mark, these do not carry out related with new some mark earlier with the some mark, reject the some mark that bicycle and pedestrian form, the some mark for track following and starting point stay then participates in the related and initial computing of track of vehicle, remaining all are new not with a some mark, are used for upgrading with a some mark record.Utilize unnecessary some mark cancellation techniques to get rid of the influence of pedestrian and non motorized vehicle substantially.
Described violation information disposal system 3 is received equipment such as database server, desk checking system and violation information database server and forms by interim violation information.The violation information disposal system 3 of communicating branch business hall is made up of equipment such as violation information database server, management system violating the regulations, touch screen query system, large screen displaies.
Described pictorial information distance transmission system 2 is realized the communication of highway radar velocity measurement capturing system 1 and violation information disposal system 3 based on the CDMA communication network.
Principle of the present invention and the course of work are as follows:
At the highway central partition radar meter 4, light filling lamp 6, video camera 5, light filling lamp control module 9, wireless transport module and small-sized industrial computer (annotate: radar meter 4 remains in 40 ~ 60 meters scopes with the miscellaneous equipment distance) are installed, radar meter 4 is installed in be 1.8 meters away from track away from 4 ~ 5 meters high vertical rods, radar meter 4 is perpendicular to two radar waves of road surface emission, form two surveyed areas on ground, and identify and mark off the track automatically; After vehicle passes through radar wave, system just can draw information such as the speed of a motor vehicle, car Taoist monastic name, vehicle commander of this vehicle at once, if this vehicle exceeds the speed limit that pre-sets, industrial computer (radar velocity measurement capturing system) is with regard to 9 pairs of video cameras 5 of notification compensating light modulation control module and light filling lamp 6 carry out operations such as light filling, candid photograph, the video image when industrial computer is noted this vehicle by radar meter 4 simultaneously immediately.
Car plate identification module in the radar velocity measurement capturing system carries out car plate identification to over-speed vehicles, and the over-speed vehicles feature picture after will identifying and other relevant informations send to province Room control center automatically by the cdma wireless communication module.
The interim violation information of province Room control center vehicle peccancy management system receives violation information and the picture that the database server automatic reception is beamed back from each highway check point, managerial personnel are by comparing to picture violating the regulations and identification license board information, if the number-plate number of identification is not inconsistent with the number-plate number of capturing in the picture violating the regulations, then should organizes data and be put in the volatile data base; If the number-plate number of identification is consistent with the number-plate number of capturing in the picture violating the regulations, when other relevant informations are correct, then should organize data and be put in the violation information database server, for detachment's new data etc. more.
The violation information database server of communicating branch carries out exchanges data by the regular violation information database server with province center of dedicated network: download new violation information, the violation information that finishes has been punished in passback; Communicating branch's treatment people violating the regulations can show and management the information of carrying out such as touch-screen and giant-screen by management system violating the regulations simultaneously; The driver can be by the relevant violation information of touch screen query and picture.
It should be noted that: in actual applications, based on trackside multilane acquisition technology of the present invention as shown in Figure 7, video camera 5 is positioned at apart from about the multilane 2m, highly arrange between 1.5m~2m, the stain of the above figure of focus is that reference point is regulated, guarantee that simultaneously the license plate image width on the track 1 reaches between 100~130 pixels, license plate image width on the track 2 reaches between 150~180 pixels, license plate image width on the track 3 reaches (picture traverse is as the criterion with track 1, other references) between 190~260 pixels.According to actual test experience for many years, when surpassing 3 tracks, suggestion preferably adopts the mode of 2 video cameras 5.
System of the present invention possesses following function:
The multiple tracks monitoring: the radar velocity measurement system can monitor the driving vehicle of two-way 10 tracks (but automatic or manual division), 1.8~76 meters of measuring speed and taking snap pictures distances.
Overspeed snapping: utilize the radar velocity measurement function, all vehicles through area covered by the radar speed-detecting network are tested the speed, when the speed of a motor vehicle of vehicle surpasses the boundary of regulation, carry out overspeed alarm, automatically capture the image of over-speed vehicles simultaneously and be kept at hard disk, and record time, place, vehicle commander, car Taoist monastic name, hypervelocity value and the speed limit of this vehicle peccancy.
Intelligent lighting control: use the complex light technology, reduce the primary colors of car plate better, improve complete (in vain) look LED lamp color rendition effect that is beyond one's reach, (LED quantity>40 more are applicable to the light filling of point of fixity position); With audio video synchronization, prevent dazzling, reduce power consumption and thermal value, use the synchronizing signal of video camera 5 or external pulse signal to make video camera 5 and light filling lamp 6 stroboscopic Frequency Synchronization, so both obtained the effect of light filling, reduced the power consumption of light filling lamp 6 again.
Car plate identification: by the vision signal of video camera 5, hypervelocity or all vehicular traffics are carried out automatic car plate identification, can identify the number-plate number and car plate color.Can the manual amendment for the car plate that can't correctly identify.
Punishment on contravention of regulation: system can be sent to picture and the data message of scene evidence obtaining in the database of command centre by wireless network, utilizes the background process program to carry out afterwards notice, notify or enter corresponding law enforcement program.
Query statistic: system has local data library inquiry, statistics and printing function.Inquiry comprises the inquiry of various appointed information and the comprehensive inquiry of User Defined condition; Statistics comprises by the statistics of clause violating the regulations and freely adding up of User Defined condition; The result of inquiry and statistics can print by table format in accordance with regulations.
Remote inquiry: be connected other relevant information of inquiry designated vehicle by external data interface with long-range.As: the registration information of vehicle, vehicle annual test situation, whether scrap etc.
Safety management function: user profile comprises user's name, password, authority, department, post etc.; System provides the subscriber information management function to comprise increase, deletion and change; Have to operating personnel's work on duty inquire about, statistical management.
Database maintenance and management: database maintenance comprises initialization, backup and the export function of database, can be as required and renewal of the message exchange of province's Room database, dump, local data base etc.; Can be regulated voluntarily in software by the user local historical record holding time and capacity, the vehicle pass-through record that surpasses the holding time is handled automatically by management software.
The above, it only is preferred embodiment of the present invention, be not that technical scope of the present invention is imposed any restrictions, so every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any trickle modification, equivalent variations and modification that above embodiment does.

Claims (10)

1. an intelligent transportation overspeed snapping system is characterized in that: comprise the many covers highway radar velocity measurement capturing system that is installed in a plurality of monitoring points, pictorial information distance transmission system and at least one cover violation information disposal system; Described highway radar velocity measurement capturing system comprises radar velocity measurement candid photograph processing section and the teletransmission part of control machine in front-end collection part, the centre; This front-end collection part is made up of radar meter, video camera, light filling lamp; The radar velocity measurement candid photograph processing section of control machine comprises overspeed snapping car plate identification module, image capture module, light filling lamp control module, car plate identification module, picture recording module violating the regulations, the local picture-storage/update module of capturing violating the regulations in the centre; This remote transmission partly relies on wireless transmission picture/information/Video Document module to realize Described pictorial information distance transmission system adopts the cdma wireless network; Described violation information disposal system is arranged on communicating branch's business hall or/and province Room control center.
2. intelligent transportation overspeed snapping according to claim 1 system, it is characterized in that: described radar meter is selected the HD125 velocity radar for use, built-in two the emission radars of this HD125 radar meter and a receiving radar.
3. intelligent transportation overspeed snapping according to claim 1 system, it is characterized in that: described video camera selects for use high-sensitivity digital to handle colour TV camera.
4. intelligent transportation overspeed snapping according to claim 1 system, it is characterized in that: be provided with detection module violating the regulations in the described radar meter, detection violating the regulations has overspeed violation to detect automatically and artificial assistance detects, overspeed violation is detected automatically by radar meter, when radar meter detects speed by vehicle and surpasses predetermined restricted speed, produce one and capture signal, the notice video camera carries out the image of real-time grasp shoot overspeed violation vehicle; When not according to lanes, violating the regulations turn around, traffic offence behaviors such as parking offense, cross-pressure double amber lines are captured by the artificial assistance detection system.
5. intelligent transportation overspeed snapping according to claim 4 system, it is characterized in that: be provided with image in the described video camera and capture module, when detection module violating the regulations detects violating the regulations signal, start the candid photograph program, finish the shooting of close-up shot image violating the regulations, and be compressed into the jpeg file form and be saved in the database, information such as record place violating the regulations, time violating the regulations, type of violation simultaneously are if overspeed violation also can record maximum speed limit, actual measurement speed, hypervelocity percent information.
6. intelligent transportation overspeed snapping according to claim 1 system is characterized in that: be provided with the aperture control module in the described light filling lamp, according to the variation of day illuminance, adjust the exposure of camera automatically.
7. intelligent transportation overspeed snapping according to claim 1 system, it is characterized in that: described light filling lamp control module makes synchronizing signal or the external pulse signal of the stroboscopic frequency of light filling lamp and video camera synchronous, this light filling lamp control module with photoresistance as gauge tap, automatically control light filling lamp extinguishes daytime, and light night.
8. intelligent transportation overspeed snapping according to claim 1 system, it is characterized in that: described overspeed snapping car plate identification module and the car plate identification module of capturing violating the regulations be based on a Vehicle License Plate Recognition System, and this Vehicle License Plate Recognition System comprises video input manager module, car plate locating module, the positive module of car plate sedan-chair, character cutting module, character recognition module, decision-making module, outgoing management module, car plate tracking module, on-line study module as a result; The car plate recognition function that this Vehicle License Plate Recognition System is finished has: Chinese Character Recognition, similar character recognition, from the deformation of normal moveout correction car plate, to the identification of the influence of wide, the intelligentized video camera of the accommodation of car plate size and light filling control technology, shade and the influence of eliminating light and inhibition, pedestrian and non motorized vehicle.
9. intelligent transportation overspeed snapping according to claim 8 system, it is characterized in that: the car plate identification process of described Vehicle License Plate Recognition System comprises five steps of image acquisition, car plate location, Character segmentation, optical character identification, output recognition result of vehicle.
10. intelligent transportation overspeed snapping according to claim 1 system, it is characterized in that: described violation information disposal system has two groups, wherein one group is arranged on province Room control center, is become with the violation information database servers group by interim violation information reception database server, desk checking system; Another group violation information disposal system is arranged on communicating branch's business hall, is made up of violation information database server, management system violating the regulations, touch screen query system, large screen display.
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CN104008649A (en) * 2014-06-17 2014-08-27 北京易华录信息技术股份有限公司 System and method for quickly finding abnormal parking reason on carriageway through radar tracking
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CN104809885A (en) * 2015-04-17 2015-07-29 无锡市崇安区科技创业服务中心 Capturing device for expressway vehicle overspeed
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CN106909923A (en) * 2017-02-20 2017-06-30 汪爱民 A kind of vehicles peccancy processing system
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CN109887307B (en) * 2019-02-28 2020-07-03 南京瑞贻电子科技有限公司 Automobile radar speed measuring device
CN109901170A (en) * 2019-03-21 2019-06-18 西安交通大学 An intelligent traffic detection system and method based on radar block array
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Application publication date: 20130911