CN101246648A - Fixed intersection electric police grasp shoot device - Google Patents
Fixed intersection electric police grasp shoot device Download PDFInfo
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- CN101246648A CN101246648A CN 200710304560 CN200710304560A CN101246648A CN 101246648 A CN101246648 A CN 101246648A CN 200710304560 CN200710304560 CN 200710304560 CN 200710304560 A CN200710304560 A CN 200710304560A CN 101246648 A CN101246648 A CN 101246648A
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Abstract
The present invention provides a fixed bayonet electron police shoot device, including a CCD close-up vidicon, a panoramic camera, an embedded industrial personal computer, a topomorph floor sensing detector, a L type fixing support, a speed detecting radar for police; the floor sensing coil couples the coil signal in the topomorph floor sensing detector; the topomorph floor sensing detector analyzes the coil sensing signal changes and informs the embedded industrial personal computer by signal; the detecting radar for police real-time detects the vehicle speed, and informs the speed to the embedded industrial personal computer; the embedded industrial personal computer controls the detecting radar for police and detects the speed of the vehicle, when overspeed signal is present, and the vehicle detector acquires processed signal, the embedded industrial personal computer controls CCD close-up vidicon to collect close-up picture, and controls the panoramic camera to collect panoramic picture. The invention greatly improves detecting ratio of the violation of laws of the overspeed vehicle, and processing real-time violation of laws detection, real-time shoot to the bayonet vehicle, no laborer required.
Description
Technical field
The present invention relates to a kind of fixed intersection electric police system, road worthy traffic control, traffic safety and order keep the monitoring of vehicle and management.
Background technology
In recent years, vehicle flowrate increases substantially, and the over-speed vehicles number also significantly increases thereupon, has caused many traffic hazards, has constituted the threat to people's life safety.This just presses for a kind of traffic-police that can safeguard traffic safety and order automatically.Electronic police is along with this needs and development of science and technology and produce, effective means as modern traffic safety management, for promptly monitoring, capture, handle traffic offence, obtain illegal evidence, effective monitoring means is provided, the containment overspeed of vehicle is played vital role, become requisite important member in the control of traffic and road troop.Its social benefit is very obvious, and the powerful deterrent force that forms impels the numerous drivers dare not be arbitrarily illegal, thereby has both ensured traffic safety, has reduced traffic police's labour intensity, has liberated a large amount of police strength again and has been used to deal with contingencies.
Current fixed intersection electric police is lower for the correct judgment rate of over-speed vehicles, and the hypervelocity discrimination is low, can not correctly handle over-speed vehicles; Present fixed intersection electric police system recognition rate is not high, and photo resolution is low, and frequent the appearance judges by accident, and mistake bat rate and leakage bat rate are higher, and especially discrimination is low especially when a plurality of vehicle of identification; Current fixed intersection electric police all is to handle vehicles peccancy mostly afterwards, can not be real-time vehicles peccancy is punished; Current fixed intersection police's poor reliability, after equipment is made mistakes, can not Auto-Sensing and recover automatically; In addition on the one hand, the software systems of current intersection electric police can not be upgraded timely, have so not only caused the waste of device resource, and can not provide more support for traffic administration and social security.
Summary of the invention
Technology of the present invention is dealt with problems: overcome the deficiencies in the prior art, a kind of fixed intersection electric police grasp shoot device is provided, has that orderliness is clear, simple in structure, reliability is high, illegal discrimination height, illegal candid photograph rate height, reduce the wasting of resources, handle characteristics such as act of violating regulations in real time.
Technical solution of the present invention: a kind of fixed intersection electric police grasp shoot device, it comprises CCD feature video camera, panoramic camera, embedded industrial control host, geotype ground sense Vehicle analyzer, L type fixed support, the alert velocity radar of using, CCD feature video camera and panoramic camera are fixed on the support bracket fastened cross bar of L type, insert embedded industrial control host by vision cable; Ground induction coil inputs to earth-buried ground sense Vehicle analyzer with the inductance signal, and earth-buried ground sense Vehicle analyzer is analyzed the coil inductance signal and changed, and vehicle is passed through the embedded industrial control host of signalisation; The police is fixed on the support bracket fastened cross bar of L type with velocity radar, the detecting real-time car speed, and with the embedded industrial control host of car speed information notification; Embed the control and management module in the embedded industrial control host each equipment is controlled and managed, when vehicle occurred by signal, embedded industrial control host control was warned with velocity radar testing the speed by vehicle; When the speed overspeed signal occurs, embedded industrial control host control CCD feature camera acquisition closeup photograph, the control panoramic camera is gathered distant view photograph, and automatically the car plate in the closeup photograph is discerned, photo, recognition result and vehicle speed data packing are transferred to the electronic police background apparatus handle.
The control and management module that embeds in the described embedded industrial control host comprises: ground sense detection module, vehicle speed measuring module, image capture module, synchronization control module, picture recognition module, storage and network communication module; Sense detection module in ground receives the signal of earth-buried ground sense Vehicle analyzer, and synchronization control module, sends instruction to the vehicle speed measuring module and its control police tested the speed with velocity radar detect speed by vehicle by behind the signal at the vehicle of sense detection module with receiving; Synchronization control module by behind the signal, sends instruction to image capture module at the signal of receiving overspeed of vehicle and vehicle; Image capture module control CCD feature video camera, panoramic camera are finished data acquisition simultaneously, and are sent panorama, closeup photograph to picture recognition module; Picture recognition module is carried out the figure image intensifying to the license plate area of closeup photograph earlier, discerns then and draws license plate recognition result; Storage and network communication module are stored the data picture, recognition result and the vehicle speed data that collect and are packed and be sent to the electronic police background apparatus.
The control and management module also comprises automatic update system in the described embedded industrial control host.The automatic update system independent operating is mainly used in inspection and the renewal of each software module being carried out version on embedded industrial control host.Automatic update system is by the network connection service device, and obtain version number up-to-date on the present server, compare with the version number of this locality,, then each module of current operation is upgraded if the version on the server is newer than the version on the local industrial control host.
The control and management module also comprises the system state real time monitoring apparatus in the described embedded industrial control host.System state real time monitoring apparatus independent operating is on embedded industrial control host, keep system by the duty of obtaining fixed each software module of electronic police in real time and be in normal running status all the time, ensure fixedly electronic police system can round-the-clock stable operation in unattended outdoor environment.When finding that certain software module breaks down, the system state real time monitoring apparatus can ensure minimizing of faulty operation rapidly to software maintenance measures such as it shut down, restarts.Simultaneously, characteristics requirement according to bayonet socket, the system state real time monitoring apparatus can also be provided with the state of deploying to ensure effective monitoring and control of illegal activities of bayonet socket software, when system is set to deploy to ensure effective monitoring and control of illegal activities state, can monitor all vehicles by this point, especially when crime dramas occurring, public security department can rely on this function to compare through the vehicle and the crime vehicle license plate of bayonet socket, to realize the tracking to the crime vehicle.
Described earth-buried ground sense Vehicle analyzer comprises central processing module, colpitts feedback sinusoidal oscillator module, power module and serial communication module.The colpitts feedback sinusoidal oscillator module as the inductance in the oscillating element, receives the variation of ground induction coil inductance value with ground induction coil; Central processing module receives the input of colpitts feedback sinusoidal oscillator, finishes the judgement whether vehicle is passed through; The task that power module is mainly finished transformation and given each module for power supply; The serial communication module is finished the data communication with embedded industrial control host.
Described intersection electric police grasp shoot device can carry out illegal detecting and recording processing to the multiple-lane road under the bayonet socket.When under the bayonet socket many tracks being arranged, a ground induction coil is arranged on every track, every track is equipped with a CCD feature video camera, and panoramic camera and alertly can cover the scope of multilane with velocity radar only need a panoramic camera and police's velocity radar; Embedded host will be controlled with velocity radar, panoramic camera and each CCD feature video camera alert in real time according to the signal that telefault passes, and over-speed vehicles is carried out real-time grasp shoot.
The present invention's beneficial effect compared with prior art:
(1) fixed intersection electric police of the present invention system orderliness is clear, simple in structure, reliability is high, illegal discrimination height, illegal candid photograph rate height, handle act of violating regulations in real time, has realized the automatic management and monitoring of traffic.CCD feature video camera and panoramic camera are captured the picture violating the regulations of high-resolution; Whether the real-time sense vehicle of ground induction coil is passed through; Alert can the detecting real-time car speed with velocity radar; The control and management module can be controlled CCD feature video camera, panoramic camera and light filling lamp synchronous working in real time, captures.
(2) fixed intersection electric police grasp shoot device of the present invention can detect vehicle illegal in real time, test the speed in real time, real-time grasp shoot, upload in real time, Realtime Alerts.System software runs on the front end industrial control host, can also upload panorama, closeup photograph, car plate and the speed information of illegal vehicle in illegal place in real time by real-time grasp shoot.So just provide reliable foundation, improved the correctness of punishment for law enforcement agency punishes.
(3) picture recognition module in the control and management module of the present invention has been used advanced computer graphic image intensifying and fuzzy recognition technology and feature is carried out topography is strengthened and extract car plate, make the resolution of image local strengthen one times, improved the discrimination of illegal vehicle car plate.
(4) the earth-buried ground sense Vehicle analyzer detection vehicle of the present invention's employing.This vehicle detection apparatus, the variation of the inductance value by analyzing the reflective electric vortex sensor has judged whether that vehicle sails ground induction coil into.This device can be provided with different sensitivity, thereby satisfies the vehicle detection of various road conditions.This device is not influenced by external conditions such as light, weather, and antijamming capability is strong.This device adopts high speed processing chip, can reach Millisecond for the detection speed of 6 passages, satisfies system for the performance requirement of capturing hot-short.
(5) the present invention adopts synchronization control module, has improved real-time, the promptness of system.Local sense Vehicle analyzer detects vehicle through out-of-date, and synchronization control module control is alert with velocity radar detecting real-time car speed, and according to speed information control CCD feature video camera, panoramic camera and light filling lamp synchronous working, carries out real-time grasp shoot.CCD feature video camera is captured clearly closeup photograph and is discerned car plate for picture recognition module, and panoramic camera is captured clearly distant view photograph and for law enforcement agency vehicle punished foundation is provided.
(6) the present invention adopts distributed system realtime monitoring device and automatic update system.Control also safeguards that each node system is in normal running status all the time, the software systems that guarantee each node simultaneously all the time with central synchronous, keep last state, and the state of deploying to ensure effective monitoring and control of illegal activities of each node of setting that can be real-time, ensure electronic police system can round-the-clock stable operation in unattended outdoor environment; Especially the system state real time monitoring apparatus can be provided with the state of deploying to ensure effective monitoring and control of illegal activities of bayonet socket software, when system is set to deploy to ensure effective monitoring and control of illegal activities state, can monitor all vehicles by this point, this directly to public security department to the crime vehicle in real time, tracking work in time provides technical support.
Description of drawings
Fig. 1 is a fixed intersection electric police apparatus structure synoptic diagram of the present invention;
Fig. 2 is control and management modular structure figure in the embedded industrial control host of the present invention;
Fig. 3 is the workflow diagram of control and management module of the present invention;
Fig. 4 is the realization flow figure of the synchronization control module in the control and management module of the present invention;
Fig. 5 is the picture recognition module process flow diagram in the control and management module of the present invention;
Fig. 6 is the realization flow figure of automatic update system of the present invention;
Fig. 7 is the realization flow figure of system state real time monitoring apparatus of the present invention;
Fig. 8 is the realization flow figure of electronic police background apparatus of the present invention;
Fig. 9 is for feel the structural drawing of type ground sense Vehicle analyzer of the present inventionly;
Figure 10 is the installation example on the L bar cross bar of the present invention;
Figure 11 is that ground induction coil of the present invention is laid synoptic diagram;
Figure 12 is the example of the candid photograph vehicles peccancy of employing apparatus of the present invention.
Embodiment
As shown in Figure 1, the major function of fixed intersection electric police grasp shoot device of the present invention is that the vehicular traffic to important bayonet socket carries out overspeed detection, record and processing, subsidiary function be give public security department's monitoring bayonet socket by vehicle with technical support.Important bayonet socket is the most concentrated place of vehicle flowrate often, then can have a strong impact on the unimpeded of traffic if traffic hazard takes place.Can produce a kind of deterrence sense to the driver, make the driver control car speed within allowed band, thereby reduce the possibility that traffic hazard takes place.Important bayonet socket is the place of the necessary process of vehicle often.Can detect the license board information through all vehicles of bayonet socket, the crime vehicle can be followed the trail of by public security department from the process information of vehicles of bayonet socket.It is by CCD feature video camera, panoramic camera, the light filling lamp, embedded industrial control host, geotype ground sense Vehicle analyzer, the alert velocity radar of using, the ups power module, L type fixed support is formed, CCD feature video camera is connected with embedded industrial control host by video cables with panoramic camera, the light filling lamp is connected with video camera by light activated element, the police links to each other with embedded industrial control host by RS232 with velocity radar, geotype ground sense Vehicle analyzer is connected with embedded industrial control host by RS232, ground induction coil directly inserts geotype ground sense Vehicle analyzer, CCD feature video camera, panoramic camera, the light filling lamp, the police is installed on the L bar cross bar with velocity radar, embedded industrial control host, geotype ground sense Vehicle analyzer, the ups power module is installed in the equipment box at L bar vertical rod middle part, ground induction coil is that ground induction coil adopts earth-buried vehicle detection coil, as shown in figure 10, be embedded in 1～5cm place under the carriageway surfacing.
As shown in Figure 2, among the control and management modular structure figure in embedded industrial control host of the present invention, sense detection module in ground passes through signal by the vehicle that RS232 obtains earth-buried ground sense Vehicle analyzer, and sense detection module in ground is exported to synchronization control module with the signal that vehicle passes through; Synchronization control module is receiving vehicle by behind the signal, control vehicle speed measuring module is obtained the alert car speed of detecting with velocity radar by RS232, obtain passing vehicle speed data back synchronization control module by the vehicle speed measuring module again behind the overspeed signal, the image capture module of synchronization control module control simultaneously is 768 * 288 video image with the speed of per second 24 frames from two camera acquisition resolution by vision cable, and in real time the image of gathering is sent back synchronization control module; The photo of synchronization control module over-speed vehicles and vehicle speed data are sent to picture recognition module, storage and network communication module; After picture recognition module obtains feature, it is carried out car plate identification, and recognition result is sent to storage and network communication module; After storage and network communication module obtain panoramic pictures, feature, recognition result, vehicle speed data, finish the preservation of data and the work that network is uploaded.
Ground sense detection module among Fig. 2 is control and the signal receiving module of earth-buried ground sense Vehicle analyzer in embedded industrial control host, by RS232 received signal and transmission order.Obtain the information that vehicle crosses in real time.The vehicle speed measuring module for alert with velocity radar in embedded industrial control host control and obtain the speed information module, by the RS232 received signal with send and instruct.Alert initiatively will record real-time velocity amplitude with velocity radar and send to the vehicle speed measuring module with 0.1 second speed by RS232, the vehicle speed measuring module judges whether hypervelocity according to the velocity amplitude of default.Image capture module is CCD feature video camera and control and the video image acquisition module of panoramic camera in embedded industrial control host, comprises the video frequency collection card of an integrated FUSIONCONEXANT878A chip.Video camera inserts video frequency collection card by the VGA vision cable, and video acquisition module is obtained video image by video frequency collection card.With the direct input picture identification module of the evidence picture in the internal memory.And with recognition result send to the storage and network communication module.Storage and network communication module are finished the work of feature, distant view photograph and car plate, speed information storage and packing in embedded industrial control host, and by network data are sent to the electronic police background apparatus.Storage and network communication module directly write in the ZIP bag evidence picture in the embedded industrial control host internal memory in the mode of data stream and the file of storage and appointment in, while informing network thread is uploaded to specified server by File Transfer Protocol with the ZIP file.Ground sense detection module is the control in the embedded industrial control host and gathers the module that Vehicle analyzer is felt on earth-buried ground, dual-mode by RS232, both can give earth-buried ground sense Vehicle analyzer by sending controling instruction, carry out sensitivity setting, track and coil correspondence setting, detector hardware is restarted, can receive the vehicle that sense Vehicle analyzer in earth-buried ground initiatively reports again and pass through signal.
As shown in Figure 3, be workflow diagram of the present invention.When being in holding state, system obtains the signal that whether has vehicle to pass through, if the signal that fruit does not have vehicle to pass through then continues to obtain the signal whether geotype ground sense Vehicle analyzer is triggered under holding state from geotype ground sense Vehicle analyzer; If the vehicle process is arranged, sense Vehicle analyzer in geotype ground is triggered, and then obtains velocity information by vehicle by alert with velocity radar; If vehicle is hypervelocity not, then holding state is got back to by system, continues to obtain the signal whether geotype ground sense Vehicle analyzer is triggered; If overspeed of vehicle then by synchronization control module synchro control CCD feature video camera, panoramic camera and light filling lamp synchronous working, is captured; Picture recognition module is carried out after the figure image intensifying of car plate local location according to the closeup photograph that obtains, and again it is carried out car plate identification; Storage and network communication module comparison film, recognition result, speed information are stored, and packing is uploaded; System returns holding state.
As shown in Figure 4, be the realization flow figure of the synchronization control module in the control and management module of the present invention and control procedure explanation: the vehicle of synchronization control module by receiving ground sense detection module by signal and overspeed of vehicle signal after, judge whether vehicle exceeds the speed limit.When vehicle was pressed ground induction coil, can trigger vehicle by signal, this moment is with the vehicle-state value set of synchronization control module; When vehicle leaves ground induction coil, can trigger vehicle and leave signal, this moment, the vehicle-state value with synchronization control module resetted.When the overspeed of vehicle signal was arranged, synchronization control module was with the set of overspeed condition value; When no overspeed signal, the overspeed condition value of synchronization control module resets.,, also detect overspeed signal and vehicle and whether all be set the time by after the signal triggering at overspeed signal or vehicle, have the hypervelocity illegal activities to take place if all be in SM set mode then show by signal with the state value set of this signal.Synchronization control module sends instruction to video acquisition module, and video acquisition module is finished the evidence photograph collection; After evidence photograph was gathered, synchronization control module sent instruction to picture recognition module, and picture recognition module is finished car plate identification work according to closeup photograph.Simultaneously, the electronic police background apparatus that notice is stored and network communication module is stored feature, panoramic pictures and the car plate, the speed information that collect and pack and be sent to appointment.
As shown in Figure 5, for of the present invention be the realization flow figure of picture recognition module of the present invention.Its flow process is as follows:
A. with evidence picture input picture identification module, utilize morphology Tophat filtering to suppress background, eliminate uneven illumination, then image is carried out binaryzation operation and connected domain analysis.
B. scan image obtains the vertical projection diagram (VPM in zone, Vertical Projection Map), VPM is carried out discrete cosine transform (DCT), utilize medium and low frequency to describe sub-reconstruct VPM, VPM after the reconstruct is more level and smooth, essential attribute not affected by noise, that its Wave crest and wave trough quantity, statistic more can the description region textures is sorted out the location of carrying out the car plate edge with the pattern vector input support vector machine of zone-texture then.
C. adopt the Hough conversion to carry out license plate sloped angular detection, carry out license plate sloped rectification according to the angle A ngle that obtains; Simultaneously,,, need utilize the bilinear interpolation function to increase or reduce the interpolation operation of image resolution ratio, strengthen image license plate image in order to improve the discrimination of car plate because the car plate photo has different sizes.
D. the vertical projection diagram by the front carries out characters on license plate and cuts apart, and the picture after the cutting utilizes the method for hidden Markov model to carry out the character recognition of car plate.
Annotate: if possible words are preferably again to selecting red part to carry out more detailed description.There is no need also just to let it pass if think.
Shown in Fig. 3,6, be automatic update system realization flow figure of the present invention.Automatic update system just begins to connect the software upgrading server by http protocol when system start-up, and the current software version number of inspection software upgrading server end, if this machine version number is lower than the version of server software, then end the software program moving, download recent software and upgrade the version number of this machine by http protocol, restart software at last; If this machine version number equals the version of server software, then after a timing cycle (this cycle can be set) detects the version number of server software once more; If this machine version number is higher than the version of server software, then upgrade the version number of this machine, after a timing cycle, detect the version number of server software once more then.So circulation.
Shown in Fig. 3,7, be system state real time monitoring apparatus realization flow figure of the present invention.The system state real time monitoring apparatus just begins the duty of monitoring software program when system start-up, if the software work state is undesired, then the system state real time monitoring apparatus will restart this software; If software work is normal, whether the system of checking is provided with the state of deploying to ensure effective monitoring and control of illegal activities to it, if be not provided with, then after a timing cycle (this cycle can be set) detects the software work state once more; If system is provided with the state of deploying to ensure effective monitoring and control of illegal activities, then change the system monitoring setting, monitor all vehicles through bayonet socket, the license board information of all vehicles is discerned and uploaded; Simultaneously, check whether the state of system state real time monitoring apparatus still is the state of deploying to ensure effective monitoring and control of illegal activities, if then continue to upload license board information through all vehicles of bayonet socket; If not, then change the system monitoring setting, only the license board information of over-speed vehicles is uploaded, after a timing cycle (this cycle can be set), detect the software work state once more simultaneously.So circulation.
As shown in Figure 8, be electronic police background apparatus realization flow figure of the present invention.The electronic police background apparatus receives feature, distant view photograph and car plate, the speed information that the embedded industrial control host of each front end is uploaded, and extracts information of vehicles and owner information according to license plate number, finally prints the illegal list of informing according to these information.
As shown in Figure 9, for feel the structural drawing of type ground sense Vehicle analyzer of the present inventionly.Earth-buried ground sense Vehicle analyzer comprises central processing module, colpitts feedback sinusoidal oscillator module, power module and serial communication module.The colpitts feedback sinusoidal oscillator module uses ground induction coil as the inductance in the oscillating element, the input exchange current produces an alternating magnetic fields, when conductor places the alternating magnetic field of this coil, because conductive surface produces the effect of current vortex, the inductance value of pancake coil and quality factor all can change; Central processing module is obtained the oscillation frequency of anti-appearance feedback type oscillating circuit module by programmable intervalometer 82C54 chip, and the analysis by timer 82C54 chip relatively judges whether the judgement that vehicle passes through; The task that power module is mainly finished transformation and given each module for power supply; The serial communication module comprises MAX202 chip and RS232 serial ports, and the MAX202 chip is used for realizing level conversion, becomes digital signal to be uploaded to host computer by the RS232 serial ports conversion of signals of all central processing module and handles.
As shown in figure 10, be the installation example on the L bar cross bar of the present invention.1, No. 3 equipment is the light filling lamp on the different tracks, is mainly used under the situation of insufficient lights such as cloudy day or night, has the effect of light filling; 2, No. 6 equipment is the CCD feature video camera on the different tracks; No. 5 equipment are panoramic camera; No. 4 equipment is the alert velocity radar of using.All equipment all is loaded in the outdoor protective cover.
As shown in figure 11, lay synoptic diagram for ground induction coil of the present invention.Vehicle is through out-of-date, triggers the ground induction coil signal below the road, and ground induction coil notice geotype ground sense Vehicle analyzer has vehicle to pass through, and geotype ground is felt Vehicle analyzer and notified synchronization control module to have vehicle to pass through by RS232.
The example of the vehicles peccancy of capturing in Figure 12 the present invention.System generates three pictures, and 1 is the panoramic pictures of vehicles peccancy, therefrom can see the residing place of vehicles peccancy, provides foundation for law enforcement agency punishes vehicles peccancy; 2 is the feature of vehicles peccancy, therefrom can obtain complete license board information clearly, for picture recognition module provides data; 3 is the license board information that identifies, and provides foundation for law enforcement agency punishes vehicles peccancy, is used for the electronic police background apparatus and extracts vehicle, owner information, prints the illegal list of informing.
In a word, it is low that the present invention has overcome traditional fixed intersection electric police discrimination, mistake bat rate and leakage bat rate are higher, real-time is poor, poor reliability, function is few, the device resource waste, the candid photograph over-speed vehicles is inaccurate, to shortcomings such as multilane over-speed vehicles discrimination are low, the present invention adopts CCD feature video camera, mode that panoramic camera combines and the recognition technology raising discrimination that adopts video image, adopt many features video camera, many ground induction coils, single panoramic camera and single police monitor the multilane vehicle with the mode of velocity radar, improved the discrimination of multilane vehicles peccancy, adopt the vehicle detection method of earth-buried ground induction coil replacement Video Motion Detection to reduce mistake bat rate and leak the bat rate, adopt the synchro control algorithm to improve the real-time of system, and employing photo, data etc. are uploaded data center in real time and are handled the regularly artificial data downloaded processing mode raising of replacement real-time, adopt C/S model, the automatic software updating system that Network Transmission etc. are formed reduces the waste of device resource, adopt the system state real time monitoring apparatus to improve the reliability of system, provide a kind of orderliness clear, simple in structure, the reliability height, discrimination height violating the regulations, candid photograph rate height violating the regulations, reduce the wasting of resources, handle the fixed intersection electric police of various acts of violating regulations in real time.
Claims (10)
1, a kind of fixed intersection electric police grasp shoot device, it is characterized in that: it comprises CCD feature video camera, panoramic camera, embedded industrial control host, geotype ground sense Vehicle analyzer, L type fixed support, the alert velocity radar of using, CCD feature video camera and panoramic camera are fixed on the support bracket fastened cross bar of L type, insert embedded industrial control host by vision cable; Ground induction coil inputs to earth-buried ground sense Vehicle analyzer with the inductance signal, and earth-buried ground sense Vehicle analyzer is analyzed the coil inductance signal and changed, and vehicle is passed through the embedded industrial control host of signalisation; The police is fixed on the support bracket fastened cross bar of L type with velocity radar, the detecting real-time car speed, and with the embedded industrial control host of car speed information notification; Embed the control and management module in the embedded industrial control host each equipment is controlled and managed, when vehicle occurred by signal, embedded industrial control host control was warned with velocity radar testing the speed by vehicle; When the speed overspeed signal occurs, embedded industrial control host control CCD feature camera acquisition closeup photograph, the control panoramic camera is gathered distant view photograph, and automatically the car plate in the closeup photograph is discerned, photo, recognition result and vehicle speed data packing are transferred to the electronic police background apparatus handle.
2, fixed intersection electric police grasp shoot device according to claim 1, it is characterized in that: described electronic police background apparatus is by the network insertion electronic police system, receive and handle evidence picture, recognition result and speed information that the embedded industrial control host of each bayonet socket is uploaded, print penalty note at last.
3, fixed intersection electric police grasp shoot device according to claim 1 is characterized in that: the control and management module that embeds in the described embedded industrial control host comprises: ground sense detection module, vehicle speed measuring module, image capture module, synchronization control module, picture recognition module, storage and network communication module; Sense detection module in ground receives the signal of earth-buried ground sense Vehicle analyzer, and synchronization control module, sends instruction to the vehicle speed measuring module and its control police tested the speed with velocity radar detect speed by vehicle by behind the signal at the vehicle of sense detection module with receiving; Synchronization control module by behind the signal, sends instruction to image capture module at the signal of receiving overspeed of vehicle and vehicle; Image capture module control CCD feature video camera, panoramic camera are finished data acquisition simultaneously, and are sent panorama, closeup photograph to picture recognition module; Picture recognition module is carried out the figure image intensifying to the license plate area of closeup photograph earlier, discerns then and draws license plate recognition result; Storage and network communication module are stored the data picture, recognition result and the vehicle speed data that collect and are packed and be sent to the electronic police background apparatus.
4, fixed intersection electric police grasp shoot device according to claim 1, it is characterized in that: the control and management module also comprises automatic update system in the described embedded industrial control host, and sense detection module, vehicle speed measuring module, image capture module, synchronization control module, picture recognition module, storage and network communication module carry out the inspection and the renewal of version with being mainly used in; Automatic update system is by the network connection service device, and obtain version number up-to-date on the present server, compare with the version number of this locality,, then described each module of current operation is upgraded if the version on the server is newer than the version on the local industrial control host.
5, fixed intersection electric police grasp shoot device according to claim 1, it is characterized in that: the control and management module also comprises the system state real time monitoring apparatus in the described embedded industrial control host, system state real time monitoring apparatus independent operating is on embedded industrial control host, keep system by the duty of obtaining fixed each module of electronic police in real time and be in normal running status all the time, ensure fixedly electronic police system can round-the-clock stable operation in unattended outdoor environment, when finding that certain software module breaks down, the system state real time monitoring apparatus can shut down to it rapidly, the software maintenance measure of restarting ensures minimizing of faulty operation; While is according to the characteristics of bayonet socket, the system state real time monitoring apparatus can also be provided with the state of deploying to ensure effective monitoring and control of illegal activities of bayonet socket, when system is set to deploy to ensure effective monitoring and control of illegal activities state, can monitor all vehicles by this point, especially when crime dramas occurring, public security department can rely on this function to compare through the vehicle and the crime vehicle license plate of bayonet socket, to realize the tracking to the crime vehicle.
6, fixed intersection electric police grasp shoot device according to claim 1 is characterized in that: described earth-buried ground sense Vehicle analyzer comprises central processing module, colpitts feedback sinusoidal oscillator module, power module and serial communication module.The colpitts feedback sinusoidal oscillator module as the inductance in the oscillating element, receives the variation of ground induction coil inductance value with ground induction coil; Central processing module receives the input of colpitts feedback sinusoidal oscillator, finishes the judgement whether vehicle is passed through; The task that power module is mainly finished transformation and given each module for power supply; The serial communication module is finished the data communication with embedded industrial control host.
7, fixed intersection electric police grasp shoot device according to claim 1, it is characterized in that: described intersection electric police grasp shoot device can break rules and regulations to detect and recording processing to the multiple-lane road under the same bayonet socket, when a bayonet socket has many tracks, a ground induction coil is arranged on every track, every the track is equipped with a CCD feature video camera, and panoramic camera and alert can cover the scope of multilane, only a panoramic camera of needs and police velocity radar with velocity radar; Embedded host will be controlled with velocity radar, panoramic camera and each CCD feature video camera alert in real time according to the signal that telefault passes, and over-speed vehicles is carried out real-time grasp shoot.
8, fixed intersection electric police grasp shoot device according to claim 1, it is characterized in that: described ground induction coil adopts earth-buried vehicle detection coil, for anti-anti-retrograde vehicle causes the wrong report of making a dash across the red light, a ground induction coil is buried in each track respectively underground inside and outside stop line, at vehicle through out-of-date, at first trigger the coil signal in the stop line, trigger the outer coil signal of stop line then, finish a vehicle and pass through process.
9, fixed intersection electric police grasp shoot device according to claim 3, it is characterized in that: described image capture module is 768 * 288 video image with the speed of per second 24 frames from CCD feature camera acquisition resolution by vision cable, and in real time the image of gathering is sent back synchronization control module.
10, fixed intersection electric police grasp shoot device according to claim 3 is characterized in that: the recognition methods of described picture recognition module is as follows:
(1) with the input of evidence picture, utilize morphology Tophat filtering to suppress background, eliminate uneven illumination, then image is carried out binaryzation operation and connected domain analysis;
(2) scan image obtains the vertical projection diagram VPM in zone, and VPM is carried out discrete cosine transform DCT, utilizes medium and low frequency to describe sub-reconstruct VPM, then the pattern vector input support vector machine of zone-texture is sorted out the location of carrying out the car plate edge;
(3) adopt the Hough conversion to carry out license plate sloped angular detection, carry out license plate sloped rectification according to the angle that obtains; Utilize the bilinear interpolation function to increase or reduce the interpolation operation of image resolution ratio then, strengthen image;
(4) vertical projection diagram by the front carries out characters on license plate and cuts apart, and the picture after the cutting utilizes the method for hidden Markov model to carry out the character recognition of car plate.
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