CN105788292A - Method and apparatus for obtaining driving vehicle information - Google Patents
Method and apparatus for obtaining driving vehicle information Download PDFInfo
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- CN105788292A CN105788292A CN201610213383.XA CN201610213383A CN105788292A CN 105788292 A CN105788292 A CN 105788292A CN 201610213383 A CN201610213383 A CN 201610213383A CN 105788292 A CN105788292 A CN 105788292A
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- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/052—Detecting movement of traffic to be counted or controlled with provision for determining speed or overspeed
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Abstract
The embodiment of the invention, which belongs to the vehicle speed measuring capturing field, provides a method and apparatus for obtaining driving vehicle information. The method and apparatus are applied to a radar speed measuring system. The method comprises: monitoring data sent by a radar speed measuring device are received and vehicle speed information of a measured vehicle is obtained based on the monitoring data; a captured image, sent by a low-illuminance capturing device, of the measured vehicle is received; according to the captured image of the measured vehicle, feature information of the measured vehicle is obtained; and the vehicle speed information of the measured vehicle, the captured image of the measured vehicle, and the feature information of the measured vehicle are reported to a monitoring center. According to the method and apparatus, evidence data can be provided for a traffic offence behavior, especially to an over-speed behavior, of a driving vehicle at a road segment with insufficient natural illumination intensity, like a tunnel.
Description
Technical field
The present invention relates to vehicle speed testing grasp shoot field, in particular to a kind of driving vehicle information getting method and device.
Background technology
The intelligent management of traffic, it is necessary to relying on detection transport information real-time dynamicly to complete, the detection of information of vehicles directly affects performance and the state of traffic system.Therefore, in whole intelligent traffic monitoring system, wagon detector is most important is also the most indispensable ingredient.At present, in traffic administration environment, vehicle movement electronic velocity measuring system mainly includes electromagnetic induction velocity-measuring system, video frequency speed-measuring system and radar velocity measurement system.Wherein, electromagnetic induction velocity-measuring system judges whether hypervelocity camera shooting evidence-obtaining according to vehicle through the speed of parallel coil.The shortcoming of this detection method be induction coil ground bury underground great in constructing amount, road surface, once change, needs circle of heavily sunkening cord, and thaws phase and low latitudes road surface in summer and pavement quality bad place in high latitude, and the maintenance workload of its coil is huge；Video frequency speed-measuring system is by the analysis to continuous videos image, follows the tracks of the process of vehicles peccancy behavior, carries out candid photograph violating the regulations by analysis and Control photographing device.Its shortcoming is that the discriminating to mobile vehicle has certain difficulty.It addition, video technique is by light, weather affects；Radar velocity measurement system is the movement velocity drawing testee according to the calculating of echo frequency shift amount received, and coordinates video capture evidence obtaining.Have and be susceptible to extraneous factor interference, the feature such as fast convenient for installation and maintenance.
As mentioned above, this three classes vehicle movement electronic velocity measuring system is except the shortcoming of self, all there is a common defect, namely need to be equipped with environment light-supplementing lamp to adapt to use night and capture flash lamp, and flash lamp (white light) is do not allow to use at some special environment (such as tunnel), because the stimulation of driver is more easily caused vehicle accident by high light.
Summary of the invention
It is an object of the invention to provide a kind of driving vehicle information getting method and device, be conducive to improving the problems referred to above.
To achieve these goals, the technical solution used in the present invention is as follows:
Embodiments provide a kind of driving vehicle information getting method, being applied to the radar velocity measurement system in the scene of natural lighting intensity deficiency, driving vehicle captured, described radar velocity measurement system includes radar velocity measurement device and low-light (level) grasp shoot device.Described method includes: receive the Monitoring Data that radar velocity measurement device sends the speed information obtaining tested vehicle according to described Monitoring Data.Receive the candid photograph image of the described tested vehicle that low-light (level) grasp shoot device sends.The characteristic information of tested vehicle described in candid photograph Image Acquisition according to described tested vehicle.The characteristic information capturing image and described tested vehicle of the speed information of described tested vehicle, described tested vehicle is reported to Surveillance center.
The embodiment of the present invention additionally provides a kind of driving vehicle information acquisition device, and described driving vehicle information acquisition device includes speed information acquisition module, captures image collection module, characteristic information acquisition module and reporting module.The Monitoring Data that speed information acquisition module sends for receiving radar velocity measurement device the speed information according to the described Monitoring Data described tested vehicle of acquisition.Capture image collection module for receiving the candid photograph image of the described tested vehicle that low-light (level) grasp shoot device sends.Characteristic information acquisition module is for the characteristic information of tested vehicle according to the candid photograph Image Acquisition of described tested vehicle.Reporting module is for being reported to Surveillance center by the characteristic information capturing image and described tested vehicle of the speed information of described tested vehicle, described tested vehicle.
The embodiment of the present invention is applied to radar velocity measurement system, in the scene of natural lighting intensity deficiency, driving vehicle can be tested the speed and candid photograph by described radar velocity measurement system, environment light-supplementing lamp need not be equipped with or capture flash lamp, efficiently avoid light compensating lamp and capture the high light that causes of flash lamp and stimulate driver thus the problem that easily causes vehicle accident.The embodiment of the present invention obtains the characteristic information of tested vehicle by receiving and process the image of capturing of tested vehicle.The velocity information of tested vehicle, candid photograph image and characteristic information all being reported to Surveillance center, contributes to the section for natural lighting intensity deficiency, for instance tunnel, the act of violating regulations of driving vehicle, especially hypervelocity behavior provides evidentiary material.
Other features and advantages of the present invention will be set forth in description subsequently, and, partly become apparent from description, or understand by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be realized by structure specifically noted in the description write, claims and accompanying drawing and be obtained.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.Shown in accompanying drawing, above-mentioned and other purpose, feature and the advantage of the present invention will become apparent from.The part that accompanying drawing labelling instruction identical in whole accompanying drawings is identical.Deliberately do not draw accompanying drawing by actual size equal proportion convergent-divergent, it is preferred that emphasis is the purport of the present invention is shown.
The system structure schematic diagram of the radar velocity measurement system that Fig. 1 provides for present pre-ferred embodiments；
The module frame chart of the radar velocity measurement device that Fig. 2 provides for the embodiment of the present invention；
The flow chart of a kind of driving vehicle information getting method that Fig. 3 provides for present pre-ferred embodiments；
The flow chart of the another kind of driving vehicle information getting method that Fig. 4 provides for present pre-ferred embodiments；
The high-level schematic functional block diagram of the first driving vehicle information acquisition device that Fig. 5 provides for present pre-ferred embodiments；
The high-level schematic functional block diagram of the second driving vehicle information acquisition device that Fig. 6 provides for present pre-ferred embodiments；
The high-level schematic functional block diagram of the third driving vehicle information acquisition device that Fig. 7 provides for present pre-ferred embodiments.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Generally can with various different configurations arrange and design with the assembly of the embodiment of the present invention that illustrate described in accompanying drawing herein.Therefore, below the detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit claimed the scope of the present invention, but is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the premise not making creative work, broadly fall into the scope of protection of the invention.
It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be carried out definition further and explain in accompanying drawing subsequently.Meanwhile, in describing the invention, term " first ", " second " etc. are only used for distinguishing description, and it is not intended that indicate or hint relative importance.
As it is shown in figure 1, be the system structure schematic diagram of present pre-ferred embodiments offer radar velocity measurement system.Radar velocity measurement system includes radar velocity measurement device 110, low-light (level) grasp shoot device 120, controller 130, communicator 140 and Surveillance center.As it is shown in figure 1, radar velocity measurement device 110 and low-light (level) grasp shoot device 120 all couple with controller 130, controller 130 couples with communicator 140, and communicator 140 couples with Surveillance center.
Radar velocity measurement device 110 for have vehicle near time, the distance between the speed of collection vehicle, the direction of motion and vehicle and radar velocity measurement device 110, for instance, described radar velocity measurement device 110 can be based on the electromagnetic wave speed measuring device of Doppler effect.
Low-light (level) grasp shoot device 120 captures the vehicle near radar velocity measurement device 110 for the scene not enough in natural lighting intensity, obtains according to information such as the license plates in the image processing algorithm image to gathering.Such as, described low-light (level) grasp shoot device 120 can be 4,000,000 pixels and half-light level is the low-illuminance cameras of 0.0003-0.1LUX.
Communicator 140 can according to the real-time of data transmission, stability, security requirement, the operation image of real-time Transmission tested vehicle is to Surveillance center, when there being vehicle that hypervelocity and other violation of law occur, transmit illegal vehicle photo and arrive Surveillance center for information about.
In the embodiment of the present invention, the data transmission of communicator 140 can adopt optical fiber private network transmission means or mobile 4G network transmission means, wherein, it is preferred to use optical fiber private network transmission means.When private network transmission is broken down, it is possible to the data information transfer sent by controller 130 by mobile 4G network is to Surveillance center.
It addition, as it is shown in figure 1, radar velocity measurement system also includes hub 150 and DVR 160, controller is coupled with communicator 140 by hub 150, DVR couples with controller also by hub.Therefore, when private network transmission is broken down, the data message that can also be sent by DVR 160 recording controller 130, or by peripheral hardware notebook computer connecting hub 150 thus coupling with controller 130, certainly, by wireless communication interface data can also be extracted peripheral hardware notebook computer 170 or mobile phone 180, and then by data message that the tool records controller such as portable hard drive 190, u dish sends.When network is normal, then recorded data information benefit is passed to Surveillance center.
Surveillance center can send a command to controller by optical fiber private network or mobile 4G, by controller control radar speed measuring device and low-light (level) grasp shoot device.Additionally, notebook computer, mobile phone send a command to controller also by wave point, thus control radar speed measuring device 110 and low-light (level) grasp shoot device 120.
In the embodiment of the present invention, described Surveillance center includes database server 220 and central management system.The major function of database server has been to upload storage and the process of data.The place of the centralized and unified storage management of the relevant informations such as information of vehicles text message, user profile, illegal suspected vehicles warning message captured by database server as each monitoring point.Central management system is a typical LAN system, including switch 210, work station 230, PC terminal 240, Surveillance center's notebook computer 250, CD writer 260, printer 270 etc..Illegal information can be incorporated to " road traffic law violation information management system " and " pipe driven by car " operation system platform that the Ministry of Public Security is unified by central management system, and automatically carries out information issue, deploy to ensure effective monitoring and control of illegal activities and remove control.
Therefore, under the environment of natural lighting intensity deficiency, vehicles peccancy can be captured by radar velocity measurement device 110 and low-light (level) grasp shoot device 120, and the license plate information of vehicles peccancy, speed information etc. are sent to Surveillance center by communicator 140.It should be noted that the radar velocity measurement system that the embodiment of the present invention provides can realize multilane monitoring, a low-light (level) grasp shoot device 120 can be monitored up to three tracks, and road pavement traffic state has extremely strong adaptive capacity.
Preferably, in the embodiment of the present invention, the concrete structure of radar velocity measurement device 110 can be as shown in Figure 2, described radar velocity measurement device 110 includes: radar signal transceiver module and radar signal acquisition processing module, described radar signal transceiver module couples with described radar signal acquisition processing module, and described radar signal acquisition processing module couples with described controller 130.
Wherein, described radar signal transceiver module includes waveform generator 301, voltage controlled oscillator 302, power amplifier 303, signal transmitting antenna 304, signal reception submodule and mixing submodule, described waveform generator 301 couples with described voltage controlled oscillator 302, described voltage controlled oscillator 302 couples with described power amplifier 303, described power amplifier 303 couples with described signal transmitting antenna 304 and mixing submodule respectively, and described mixing submodule couples with described radar signal acquisition processing module.
Described waveform generator 301 is used for producing modulating wave, and after the frequency of voltage controlled oscillator 302 regulates, after the amplification then through power amplifier 303, part input mixing submodule, another part is launched by signal transmitting antenna 304.
The electromagnetic wave of signal transmitting antenna 304 output is received submodule by signal after object reflects and receives, signal receives the signal input mixing submodule that submodule will receive, mixing submodule will be sent to radar signal acquisition processing module after launching signal and receiving signal mixing.
Preferentially, described radar signal transceiver module also includes selector 309, and described signal receives submodule and includes the first reception antenna 305 and the second reception antenna 306, and described mixing submodule includes the first frequency mixer 307 and the second frequency mixer 308.Described first reception antenna 305 couples with described first frequency mixer 307, and described second reception antenna 306 couples with described second frequency mixer 308, and described first frequency mixer 307 and the second frequency mixer 308 all couple with described selector 309.Described radar signal acquisition processing module includes IF signal processing module 310, analog-to-digital conversion module 311.Described radar signal transceiver module couples with described IF signal processing module 310, and described IF signal processing module 310 couples with described analog-to-digital conversion module 311, and described analog-to-digital conversion module 311 couples with described controller 130.
In the embodiment of the present invention, described waveform generator 301 is triangular-wave generator, and described controller 130 can include fpga chip.
nullRadar velocity measurement device 110 utilizes triangular wave as modulating wave，Control voltage controlled oscillator 302 (VCO) output，After power amplifier 303 amplifies by a part of local oscillation signal by signal transmitting antenna 304 to emission，It is distributed in the first reception antenna 305 of diverse location and after the second reception antenna 306 receives the radar signal reflected，Another part local oscillation signal mixing that the signal that first reception antenna 305 is received by the first frequency mixer 307 and power amplifier 303 export，Another part local oscillation signal mixing that the signal that second reception antenna 306 is received by the second frequency mixer 308 and power amplifier 303 export，Mixed frequency signal is amplified through the entrance IF signal processing module 310 of selector 309 timesharing、After Filtering Processing，Consolidated、Echo Beat Signal accurately，Then Beat Signal becomes digital signal through analog-to-digital conversion module 311，Described digital signal is sent to controller 130 by described analog-to-digital conversion module 311.After controller 130 collects digital signal, digital signal is transformed to frequency domain through the fast algorithm (FFT) of discrete Fourier transform (DFT), first the power level according to echo-signal detects target, relation further according to beat signal frequency and target range, utilize echo Beat Signal to calculate the distance of target respectively, just can calculate positional information and the direction of motion of target.After calculating this information, result just can be delivered to subsequent module and carry out intellectual analysis control use.
When radar velocity measurement system initialization, radar signal transceiver module is started working, the first receiver module being made up of the first reception antenna 305 and the first frequency mixer 307, and the second receiver module being made up of the second reception antenna 306 and the second frequency mixer 308, echo Beat Signal is amplified by this two-way receiver module respectively by IF process module, filtering, by analog-to-digital conversion module 311 by after signal sampling, flow to controller 130, controller 130 by corresponding computing formula it is first determined whether there is target, if there being target, calculate the speed of target, the direction of motion, the positional information such as distance and angle.
Preferably, described IF signal processing module 310 can be a filter amplification circuit, and the effect of IF signal processing module 310 and analog-to-digital conversion module 311 is by converting digital signal input controller 130 after amplifying filtering to by the mixed frequency signal in microwave components.
After controller 130 gets the Monitoring Data treating measuring car and the above-mentioned digital signal of radar velocity measurement device 110 transmission, described Monitoring Data is processed the speed information obtaining vehicle to be measured, according to described speed information transmission control instruction to low-light (level) grasp shoot device 120.Low-light (level) grasp shoot device 120 is treated measuring car and is captured after getting the control instruction that controller 130 sends, and sends the candid photograph image collected to controller 130.
After controller 130 gets the candid photograph image that low-light (level) grasp shoot device 120 sends, according to each two field picture, the car plate of the vehicle in travelling is positioned and follows the tracks of, therefrom automatically extract license plate image, it is then passed through the segmentation and identify character automatically exactly of car plate fine positioning, cutting and identification module, obtains the alphabet information of car plate and color and classification information.Additionally by vehicle detection module, it is possible to authenticate go out unlicensed vehicle and export result.The illegal information of vehicle, the relevant information of display illegal vehicle, simultaneously onsite alarming is obtained by inquiring about unlawful data storehouse.The toll collection information of vehicle, the relevant information of display arrearage vehicle, simultaneously onsite alarming is obtained by inquiring about toll collection data base.It addition, system is by on-line study new technique, each identification module is adjusted dynamically so that Car license recognition can adapt to the change of various applied environment automatically.
It addition, controller 130 also has image complex functionality, image will be captured and carry out image overlay with tested vehicle relevant information (license plate number, speed, time, position, track etc.).
In the embodiment of the present invention, controller 130 can be sent to Surveillance center by communicator after the vehicle image information gathered and speed information packing.
Refer to Fig. 3, be the flow chart of a kind of driving vehicle information getting method that present pre-ferred embodiments provides.Described driving vehicle information getting method is applied to above-mentioned radar velocity measurement system.Idiographic flow shown in Fig. 3 will be described in detail below.
Step S301: receive the Monitoring Data that radar velocity measurement device sends the speed information obtaining described tested vehicle according to described Monitoring Data；
After radar velocity measurement system electrification, radar velocity measurement device 110 is started working, and the Monitoring Data collected is sent to controller 130.Described Monitoring Data is processed, thus obtaining the speed information of tested vehicle after receiving the Monitoring Data that radar velocity measurement device 110 sends by controller 130 according to default algorithm.For example, it is possible to the Monitoring Data radar velocity measurement device 110 that receives sent according to doppler principle processes the speed information obtaining tested vehicle.Certainly, the Monitoring Data sent according to radar velocity measurement device, it is also possible to obtain the distance between the direction of motion and tested vehicle and the radar velocity measurement device 110 of tested vehicle.
Step S302: receive the candid photograph image of the described tested vehicle that low-light (level) grasp shoot device sends；
When receiving Monitoring Data that radar velocity measurement device 110 sends and getting the speed information of tested vehicle according to described Monitoring Data, the control instruction that sends controller 130 triggers low-light (level) grasp shoot device 120 tested vehicle that radar velocity measurement device 110 is monitored and captures, and the image captured is sent to controller 130 by low-light (level) grasp shoot device 120.
Such as, the shutter of low-light (level) grasp shoot device 120 is made up of a trigger, by control instruction can the output state of control trigger, thus controlling the unlatching of the shutter of low-light (level) grasp shoot device 120, tested vehicle is captured.Candid photograph image is sent to controller 130 by low-light (level) grasp shoot device 120.In the embodiment of the present invention, described candid photograph image can be video image, it is also possible to be photo.Wherein, described low-light (level) grasp shoot device 120 can in the scene of natural lighting intensity deficiency, for instance in tunnel, captures the driving vehicle near radar velocity measurement device 110 when not setting up light compensating lamp or flash lamp.Such as, low-light (level) grasp shoot device 120 can be 4,000,000 pixels and half-light level is the low-illuminance cameras of 0.0003-0.1LUX.After controller 130 gets the candid photograph image that low-light (level) grasp shoot device 120 sends, enter step S303.
Step S303: the characteristic information according to the candid photograph Image Acquisition tested vehicle of tested vehicle；
Wherein, the characteristic information of described tested vehicle includes driver's image information, vehicle color, class of vehicle and license board information.Certainly, the characteristic information of described tested vehicle can also include but not limited to capture temporal information, capture location information etc..
Concrete, the mode obtaining the characteristic information of tested vehicle may is that when capturing image and being video image, carries out sub-frame processing to capturing image, the car plate of driving vehicle in each two field picture is positioned and followed the tracks of, therefrom automatically extracts license plate image.It is then passed through car plate fine positioning, cutting and identification module automatically split exactly and identify character, obtains the alphabet information of car plate, color and classification information.It is of course also possible to by candid photograph image is carried out image procossing, it is thus achieved that driver's image information, vehicle color and class of vehicle information.Furthermore it is also possible to go out unlicensed vehicle according to capturing image authentication, speed information and candid photograph image to the unlicensed vehicle identified carry out labelling, in order to Surveillance center processes.
After getting the license board information of tested vehicle, it is possible to license board information is mated with default unlawful data storehouse, it is judged that whether this vehicle is illegal vehicle, if this vehicle belongs to illegal vehicle, then the illegal information of this vehicle it is also sent to Surveillance center and reports to the police immediately.Further, it is also possible to license board information is mated with the toll collection data base preset, it is judged that whether this vehicle exists arrearage, if this vehicle exists arrearage situation, then the arrearage information of this vehicle is also sent to Surveillance center and reports to the police immediately.
Step S304: the characteristic information capturing image and tested vehicle of the speed information of tested vehicle, tested vehicle is reported to Surveillance center.
Therefore, the Monitoring Data that the driving vehicle information getting method that the embodiment of the present invention provides can pass through the radar velocity measurement device 110 received is sent processes, and send the control instruction triggering low-light (level) grasp shoot device 120 scene in natural lighting intensity deficiency, such as, in tunnel, when not setting up light compensating lamp or flash lamp, tested vehicle is captured.Receive and process the characteristic information capturing image acquisition tested vehicle.Further the velocity information of tested vehicle, candid photograph image and characteristic information are all reported to Surveillance center, as the evidentiary material of vehicle peccancy.
Additionally, as shown in Figure 4, the embodiment of the present invention additionally provides another kind of driving vehicle information getting method.Described method includes:
Step S401: receive the Monitoring Data that radar velocity measurement device sends the speed information obtaining tested vehicle according to described Monitoring Data；
Step S402: judge whether described tested vehicle exceeds the speed limit according to described speed information；
Speed information and preset vehicle speed threshold value are compared, when described speed information exceedes preset vehicle speed threshold value, it is determined that tested vehicle exceeds the speed limit, when described speed information exceedes preset vehicle speed threshold value, it is determined that tested vehicle does not exceed the speed limit.Wherein, described preset vehicle speed threshold value is arranged according to the speed limit of the running section of tested vehicle.When judging tested vehicle hypervelocity, enter step S403；When judging that tested vehicle does not exceed the speed limit, continue the velocity information obtained according to next frame Monitoring Data is judged.
Step S403: control low-light (level) grasp shoot device and described tested vehicle is captured, and obtain the candid photograph image of tested vehicle；
When judge tested vehicle hypervelocity time, controller 130 send control instruction trigger low-light (level) grasp shoot device 120 tested vehicle is carried out candid photograph obtain capture image.Then, candid photograph image is sent to controller 130 by low-light (level) grasp shoot device 120.
Step S404: the characteristic information according to the candid photograph Image Acquisition tested vehicle of tested vehicle；
Wherein, the tested vehicle in step S404 is the vehicle being judged to hypervelocity.The characteristic information of tested vehicle includes driver's image information, vehicle color, class of vehicle and license board information.Certainly, the characteristic information of tested vehicle can also include but not limited to capture temporal information, capture location information etc..
Step S405: the characteristic information capturing image and tested vehicle of the speed information of tested vehicle, tested vehicle is reported to Surveillance center.
The Monitoring Data that the another kind of driving vehicle information getting method that the invention described above embodiment provides can pass through the radar velocity measurement device 110 received is sent processes, when judging tested vehicle hypervelocity, send control instruction and trigger the low-light (level) grasp shoot device 120 scene in natural lighting intensity deficiency, such as, in tunnel, when not setting up light compensating lamp or flash lamp, the vehicle of hypervelocity is captured.Receive and process the characteristic information capturing image acquisition over-speed vehicles.Further the characteristic information capturing image and over-speed vehicles of the velocity information of over-speed vehicles, over-speed vehicles is all reported to Surveillance center, as the evidentiary material of overspeed of vehicle.
Concrete, step S301 or in step S401, the detailed description of the invention receiving Monitoring Data that radar velocity measurement device sends the speed information that obtains tested vehicle according to described Monitoring Data is:
Receive the Monitoring Data that radar velocity measurement device 110 sends, judge whether that tested vehicle occurs according to described Monitoring Data.If it is determined that there is tested vehicle, then obtaining the speed information of described tested vehicle according to described Monitoring Data, if it is determined that there is not tested vehicle, then the next frame data continuing the radar velocity measurement device received is sent judge.
Owing to radar velocity measurement device 110 is for gather Monitoring Data incessantly, the Monitoring Data collected is likely to not comprise the information of driving vehicle.Therefore, after the Monitoring Data that the radar velocity measurement device received sends, need the information whether Monitoring Data that the radar velocity measurement device 110 received is sent comprises driving vehicle to judge in advance, namely judge whether tested vehicle occurs in the monitoring range of radar velocity measurement device 110 according to described Monitoring Data.
Concrete, judge whether that method tested vehicle occur can be according to described Monitoring Data: digital signal is transformed to frequency domain through the fast algorithm (FFT) of discrete Fourier transform (DFT) after receiving the digital signal that radar velocity measurement device 110 sends by controller 130.Power level according to sampled point judges whether tested vehicle occur.Such as, can by the power level of sampled point with preset strength threshold ratio relatively, when the power level of sampled point exceedes described preset strength threshold value, judge, in the investigative range of radar velocity measurement device 110, tested vehicle occurs, when the power level of sampled point is less than described preset strength threshold value, it is determined that tested vehicle does not occur in the investigative range of radar velocity measurement device 110.Wherein, described preset strength threshold value can be arranged according to test of many times result.
Additionally, in the embodiment of the present invention, according to the detailed description of the invention of the speed information of described Monitoring Data acquisition tested vehicle can be:
The signal that radar velocity measurement device is sent by how general row principle is adopted to process, the distance of speed and tested vehicle and radar velocity measurement device 110 to obtain tested vehicle, concrete calculation is as follows:
According to how general row principle, under continuous wave system, signal S (t) that radar velocity measurement device 110 is launched is represented by:
ω in formula (1)0For angle of departure frequency,For initial phase, A is amplitude.
By the echo-signal S of target reflectionr(t) be:
In formula (2), K is the attenuation quotient of echo.trThe time launching signal is lagged behind, it is possible to be expressed as t for echor=2R/c.Wherein, R is the distance between target and radar velocity measurement device, and c is propagation velocity of electromagnetic wave.
If target maintains static, then distance R is constant.Fixed skew ω is had between echo-signal and transmitting signal0tr=2 π f02R/c=2 π/λ 2R, it is that electromagnetic wave comes and goes produced delayed phase between radar velocity measurement device and target.
When having relative motion between target and radar, then distance R changes over.If target is with radar motion at the uniform velocity relatively, then the distance R (t) between t target and radar velocity measurement device 110 is:
R (t)=R0-vrt(3)
In formula (3), R0Distance between target and radar velocity measurement device during for t=0, vrRadial motion speed for the relative radar velocity measurement device of target.
Formula (2) shows, certain point on waveform s (t) that t receives, is at t-trMoment launches.Due to the speed of related movement v between usual radar and targetrMuch smaller than velocity of electromagnetic wave c, therefore time delay trCan be similar to and be written as:
tr=2R (t)/c=2/c (R0-vrt)(4)
Now, echo-signal is compared with launching signal, and high-frequency phase difference is:
Formula (5) is the function of time t, in speed vrDuring for constant, the difference on the frequency of generation is:
In formula (6), fdBeing exactly Doppler frequency, it is proportional to the speed of relative motion and is inversely proportional to operation wavelength λ.When target drives towards radar, Doppler frequency be on the occasion of, receive signal frequency higher than emission signal frequency, and when target deviate from radar travel time, Doppler frequency is negative value, accepts signal frequency lower than emission signal frequency.By formula (6) as long as it can be seen that drawing Doppler frequency fdJust can in the hope of target velocity vr。
Therefore, the time delay launched between signal and echo-signal of radar velocity measurement device is different, and the frequency of corresponding Beat Signal also differs.Frequency according to obtained Beat Signal, it can be determined that go out echo quantity, thus judging the quantity of target, and calculate the speed of these targets and these targets of t and and radar velocity measurement device between distance.
Preferably, in the embodiment of the present invention, in step S402, after judging tested vehicle hypervelocity according to speed information, controller 130 sends alarm command to Surveillance center.Described alarm command is for triggering the switching on of alarm that Surveillance center is arranged, when there being vehicle hypervelocity or other infringement occur by the staff of alarm notice Surveillance center, it is simple to staff can process in time.Such as, described alarm can be buzzer, display lamp etc..It should be noted that the step sending alarm command can occur between step S402 to step S405, it is also possible to occur after step S405.
Preferably, in order to facilitate the staff of Surveillance center to have access to the relevant information of over-speed vehicles, in the embodiment of the present invention, step S304 or the characteristic information capturing image and tested vehicle of the speed information of tested vehicle, tested vehicle is reported in step S405 the detailed description of the invention of Surveillance center can be:
First the characteristic information capturing image and tested vehicle of the speed information of tested vehicle, tested vehicle is carried out image overlay, synthesize evidence image.Again synthesized evidence image is reported to Surveillance center.
Refer to Fig. 5, be the high-level schematic functional block diagram of a kind of driving vehicle information acquisition device 131 that present pre-ferred embodiments provides.The driving vehicle information acquisition device 131 that the embodiment of the present invention provides runs on the controller 130 of described radar velocity measurement system.Described driving vehicle information acquisition device includes speed information acquisition module 510, captures image collection module 520, characteristic information acquisition module 530 and reporting module 540.
Speed information acquisition module 510, for receiving the Monitoring Data that radar velocity measurement device sends the speed information obtaining tested vehicle according to described Monitoring Data.
Capture image collection module 520, for receiving the candid photograph image of the described tested vehicle that low-light (level) grasp shoot device sends；
It should be noted that, in preferred embodiment of the present invention, capture image collection module 520 specifically for judging whether described tested vehicle exceeds the speed limit according to described speed information, when judging tested vehicle hypervelocity, control low-light (level) grasp shoot device described tested vehicle is captured, and obtain the candid photograph image of tested vehicle.
Characteristic information acquisition module 530, for the characteristic information of tested vehicle according to the candid photograph Image Acquisition of described tested vehicle.Wherein, the characteristic information of described tested vehicle includes driver's image information, vehicle color, class of vehicle and license board information.
Reporting module 540, for being reported to Surveillance center by the characteristic information capturing image and tested vehicle of the speed information of tested vehicle, tested vehicle.
As shown in Figure 6, the driving vehicle information acquisition device 131 that present pre-ferred embodiments provides also includes alarm command sending module 550.Described alarm command sending module 550 is used for sending alarm command to Surveillance center.
As it is shown in fig. 7, speed information acquisition module 510 includes receiving submodule 511 and judging submodule 512.Receive submodule 511 for receiving the Monitoring Data that radar velocity measurement device sends.Judge that submodule 512 is for judging whether tested vehicle occur according to described Monitoring Data, when judging tested vehicle occurs, obtain the speed information of described tested vehicle according to described Monitoring Data.
As it is shown in fig. 7, reporting module 540 includes image synthon module 541 and image reports submodule 542.Image synthon module, for the characteristic information capturing image and described tested vehicle of the speed information of tested vehicle, tested vehicle is carried out image overlay, synthesizes evidence image.Image reports submodule for synthesized evidence image is reported to Surveillance center.
In several embodiments provided herein, it should be understood that disclosed apparatus and method, it is also possible to realize by another way.Device embodiment described above is merely schematic, for instance, flow chart and block diagram in accompanying drawing show according to the device of multiple embodiments of the present invention, the architectural framework in the cards of method and computer program product, function and operation.In this, flow chart or each square frame in block diagram can represent a part for a module, program segment or code, and a part for described module, program segment or code comprises the executable instruction of one or more logic function for realizing regulation.It should also be noted that at some as in the implementation replaced, the function marked in square frame can also to be different from the order generation marked in accompanying drawing.Such as, two continuous print square frames can essentially perform substantially in parallel, and they can also perform sometimes in the opposite order, and this determines according to involved function.It will also be noted that, the combination of the square frame in each square frame in block diagram and/or flow chart and block diagram and/or flow chart, can realize by the special hardware based system of the function or action that perform regulation, or can realize with the combination of specialized hardware Yu computer instruction.
It addition, each functional module in each embodiment of the present invention can integrate one independent part of formation, it is also possible to be modules individualism, it is also possible to the integrally formed independent part of two or more modules.
If described function is using the form realization of software function module and as independent production marketing or use, it is possible to be stored in a computer read/write memory medium.Based on such understanding, part or the part of this technical scheme that prior art is contributed by technical scheme substantially in other words can embody with the form of software product, this computer software product is stored in a storage medium, including some instructions with so that a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, portable hard drive, read only memory (ROM, Read-OnlyMemory), the various media that can store program code such as random access memory (RAM, RandomAccessMemory), magnetic disc or CD.It should be noted that, in this article, the relational terms of such as first and second or the like is used merely to separate an entity or operation with another entity or operating space, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " includes ", " comprising " or its any other variant are intended to comprising of nonexcludability, so that include the process of a series of key element, method, article or equipment not only include those key elements, but also include other key elements being not expressly set out, or also include the key element intrinsic for this process, method, article or equipment.When there is no more restriction, statement " including ... " key element limited, it is not excluded that there is also other identical element in including the process of described key element, method, article or equipment.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.It should also be noted that similar label and letter below figure represent similar terms, therefore, once a certain Xiang Yi accompanying drawing is defined, then it need not be carried out definition further and explain in accompanying drawing subsequently.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with scope of the claims.
Claims (10)
1. a driving vehicle information getting method, it is characterized in that, being applied to the radar velocity measurement system in the scene of natural lighting intensity deficiency, driving vehicle captured, described radar velocity measurement system includes radar velocity measurement device and low-light (level) grasp shoot device, and described method includes:
Receive the Monitoring Data that described radar velocity measurement device sends the speed information obtaining tested vehicle according to described Monitoring Data；
Receive the candid photograph image of the described tested vehicle that described low-light (level) grasp shoot device sends；
The characteristic information of tested vehicle described in candid photograph Image Acquisition according to described tested vehicle；
The characteristic information capturing image and described tested vehicle of the speed information of described tested vehicle, described tested vehicle is reported to Surveillance center.
2. method according to claim 1, it is characterised in that the Monitoring Data that described reception described radar velocity measurement device sends the speed information according to described Monitoring Data acquisition tested vehicle, including:
Receive the Monitoring Data that described radar velocity measurement device sends；
Judge whether that tested vehicle occurs according to described Monitoring Data, if so, obtain the speed information of described tested vehicle according to described Monitoring Data.
3. method according to claim 2, it is characterised in that the candid photograph image of the described tested vehicle that described reception described low-light (level) grasp shoot device sends, including:
Judge whether described tested vehicle exceeds the speed limit according to described speed information, if so, control described low-light (level) grasp shoot device and described tested vehicle is captured, and obtain the candid photograph image of described tested vehicle.
4. method according to claim 3, it is characterized in that, described judge whether described tested vehicle exceeds the speed limit according to described speed information, if, control described low-light (level) grasp shoot device described tested vehicle is captured, and after obtaining the step capturing image of described tested vehicle, also include: send alarm command to Surveillance center.
5. the method according to any one of claim 1-4, it is characterised in that the described speed information by described tested vehicle, the candid photograph image of described tested vehicle and the characteristic information of described tested vehicle are reported to Surveillance center, including:
The characteristic information synthesis evidence image capturing image and described tested vehicle by the speed information of described tested vehicle, described tested vehicle；
Described evidence image is reported to Surveillance center.
6. method according to claim 5, it is characterised in that the characteristic information of described tested vehicle includes driver's image information, vehicle color, class of vehicle and license board information.
7. a driving vehicle information acquisition device, it is characterised in that including:
Speed information acquisition module, for receiving the Monitoring Data that radar velocity measurement device sends the speed information obtaining tested vehicle according to described Monitoring Data；
Capture image collection module, for receiving the candid photograph image of the described tested vehicle that low-light (level) grasp shoot device sends；
Characteristic information acquisition module, for the characteristic information of tested vehicle according to the candid photograph Image Acquisition of described tested vehicle；
Reporting module, for being reported to Surveillance center by the characteristic information capturing image and described tested vehicle of the speed information of described tested vehicle, described tested vehicle.
8. device according to claim 7, it is characterised in that described speed information acquisition module includes:
Receive submodule, for receiving the Monitoring Data that radar velocity measurement device sends；
Judge submodule, for judging whether that tested vehicle occurs according to described Monitoring Data, if so, obtain the speed information of described tested vehicle according to described Monitoring Data.
9. device according to claim 8, it is characterized in that, capture image collection module specifically for judging whether described tested vehicle exceeds the speed limit according to described speed information, if, control low-light (level) grasp shoot device described tested vehicle is captured, and obtain the candid photograph image of described tested vehicle.
10. the device according to any one of claim 7-9, it is characterised in that described reporting module includes:
Image synthon module, for the characteristic information synthesis evidence image capturing image and described tested vehicle by the speed information of described tested vehicle, described tested vehicle；
Image reports submodule, for described evidence image is reported to described Surveillance center.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875695A (en) * | 2017-04-12 | 2017-06-20 | 深圳大图科创技术开发有限公司 | A kind of vehicle management system based on cloud computing platform |
| CN109615866A (en) * | 2019-01-16 | 2019-04-12 | 南京奥杰智能科技有限公司 | Traffic monitoring system Internet-based |
| CN109995990A (en) * | 2017-12-29 | 2019-07-09 | 浙江宇视科技有限公司 | Video capture method, apparatus and gate sentry system |
| CN110111586A (en) * | 2019-05-06 | 2019-08-09 | 西安建筑科技大学 | A kind of prompt monitoring and alarming system of safe speed |
| CN113362610A (en) * | 2021-05-27 | 2021-09-07 | 北京万集科技股份有限公司 | Method, system, and computer-readable storage medium for identifying an offending traffic participant |
| CN113362592A (en) * | 2021-05-27 | 2021-09-07 | 北京万集科技股份有限公司 | Method, system, and computer-readable storage medium for identifying an offending traffic participant |
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| CN114724363A (en) * | 2022-03-29 | 2022-07-08 | 北京万集科技股份有限公司 | Vehicle management and control method, device, equipment, storage medium and program product |
| WO2022247931A1 (en) * | 2021-05-27 | 2022-12-01 | 北京万集科技股份有限公司 | Method and system for identifying illegal traffic participant, and computer-readable storage medium |
| WO2022247932A1 (en) * | 2021-05-27 | 2022-12-01 | 北京万集科技股份有限公司 | Method and system for recognizing traffic violation participant, and computer-readable storage medium |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6469653B1 (en) * | 2001-08-22 | 2002-10-22 | Uniden America Corporation | Apparatus and method for selectively monitoring radar signals and providing an alert responsive thereto |
| US20060067562A1 (en) * | 2004-09-30 | 2006-03-30 | The Regents Of The University Of California | Detection of moving objects in a video |
| CN101409015A (en) * | 2008-11-12 | 2009-04-15 | 刘业兴 | Automatic monitoring system for automobile overspeed |
| CN102368806A (en) * | 2011-11-07 | 2012-03-07 | 天津银箭科技有限公司 | Video camera special for city road monitoring |
| CN202196482U (en) * | 2011-08-15 | 2012-04-18 | 航天科工深圳（集团）有限公司 | On-site monitoring system and monitoring system |
| CN102768800A (en) * | 2012-07-12 | 2012-11-07 | 复旦大学 | Motor vehicle red light running rule violation evidence obtaining method based on high-definition videos |
| CN102819880A (en) * | 2012-08-07 | 2012-12-12 | 广东威创视讯科技股份有限公司 | System and method for restoring road accident images all around |
| CN203055071U (en) * | 2012-12-14 | 2013-07-10 | 国家电网公司 | Monitoring system |
| CN203134121U (en) * | 2013-01-10 | 2013-08-14 | 安徽云盛信息科技有限公司 | Vehicle overspeed detection system |
| CN103295402A (en) * | 2013-07-01 | 2013-09-11 | 广东惠利普路桥信息工程有限公司 | Intelligent traffic overspeed snapshot system |
| CN103870847A (en) * | 2014-03-03 | 2014-06-18 | 中国人民解放军国防科学技术大学 | Detecting method for moving object of over-the-ground monitoring under low-luminance environment |
| CN104424804A (en) * | 2013-09-10 | 2015-03-18 | 上海弘视通信技术有限公司 | Intelligent speed-measuring method with single radar and multiple lanes and system thereof |
| CN104575005A (en) * | 2014-12-19 | 2015-04-29 | 欧阳秋娜 | Overspeed monitoring system and monitoring method thereof |
| CN104966400A (en) * | 2015-06-11 | 2015-10-07 | 山东鼎讯智能交通股份有限公司 | Integrated multi-object radar speed measurement snapshot system and method |
-
2016
- 2016-04-07 CN CN201610213383.XA patent/CN105788292A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6469653B1 (en) * | 2001-08-22 | 2002-10-22 | Uniden America Corporation | Apparatus and method for selectively monitoring radar signals and providing an alert responsive thereto |
| US20060067562A1 (en) * | 2004-09-30 | 2006-03-30 | The Regents Of The University Of California | Detection of moving objects in a video |
| CN101409015A (en) * | 2008-11-12 | 2009-04-15 | 刘业兴 | Automatic monitoring system for automobile overspeed |
| CN202196482U (en) * | 2011-08-15 | 2012-04-18 | 航天科工深圳（集团）有限公司 | On-site monitoring system and monitoring system |
| CN102368806A (en) * | 2011-11-07 | 2012-03-07 | 天津银箭科技有限公司 | Video camera special for city road monitoring |
| CN102768800A (en) * | 2012-07-12 | 2012-11-07 | 复旦大学 | Motor vehicle red light running rule violation evidence obtaining method based on high-definition videos |
| CN102819880A (en) * | 2012-08-07 | 2012-12-12 | 广东威创视讯科技股份有限公司 | System and method for restoring road accident images all around |
| CN203055071U (en) * | 2012-12-14 | 2013-07-10 | 国家电网公司 | Monitoring system |
| CN203134121U (en) * | 2013-01-10 | 2013-08-14 | 安徽云盛信息科技有限公司 | Vehicle overspeed detection system |
| CN103295402A (en) * | 2013-07-01 | 2013-09-11 | 广东惠利普路桥信息工程有限公司 | Intelligent traffic overspeed snapshot system |
| CN104424804A (en) * | 2013-09-10 | 2015-03-18 | 上海弘视通信技术有限公司 | Intelligent speed-measuring method with single radar and multiple lanes and system thereof |
| CN103870847A (en) * | 2014-03-03 | 2014-06-18 | 中国人民解放军国防科学技术大学 | Detecting method for moving object of over-the-ground monitoring under low-luminance environment |
| CN104575005A (en) * | 2014-12-19 | 2015-04-29 | 欧阳秋娜 | Overspeed monitoring system and monitoring method thereof |
| CN104966400A (en) * | 2015-06-11 | 2015-10-07 | 山东鼎讯智能交通股份有限公司 | Integrated multi-object radar speed measurement snapshot system and method |
Non-Patent Citations (5)
| Title |
|---|
| 丁鹭飞: "《雷达原理 第4版》", 15 March 2009, 电子工业出版社 * |
| 刘慧芳: ""线性调频连续波雷达的信号处理研究"", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
| 刘锋: "《复杂调制信号截获、分选与识别》", 31 March 2015, 国防工业出版社 * |
| 张飞飞: ""科达新一代抓拍单元对光污染说‘不’"", 《第四届深圳国际智能交通与卫星导航位置服务展览会》 * |
| 李遂意: ""基于双波束雷达传感器的车速检测技术"", 《中国优秀硕士学位论文全文数据库 信息科技辑》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106875695A (en) * | 2017-04-12 | 2017-06-20 | 深圳大图科创技术开发有限公司 | A kind of vehicle management system based on cloud computing platform |
| CN109995990A (en) * | 2017-12-29 | 2019-07-09 | 浙江宇视科技有限公司 | Video capture method, apparatus and gate sentry system |
| CN109995990B (en) * | 2017-12-29 | 2021-11-16 | 浙江宇视科技有限公司 | Image capturing method and device and gate sentry system |
| CN109615866A (en) * | 2019-01-16 | 2019-04-12 | 南京奥杰智能科技有限公司 | Traffic monitoring system Internet-based |
| CN110111586A (en) * | 2019-05-06 | 2019-08-09 | 西安建筑科技大学 | A kind of prompt monitoring and alarming system of safe speed |
| CN113362610A (en) * | 2021-05-27 | 2021-09-07 | 北京万集科技股份有限公司 | Method, system, and computer-readable storage medium for identifying an offending traffic participant |
| CN113362592A (en) * | 2021-05-27 | 2021-09-07 | 北京万集科技股份有限公司 | Method, system, and computer-readable storage medium for identifying an offending traffic participant |
| CN113470371A (en) * | 2021-05-27 | 2021-10-01 | 北京万集科技股份有限公司 | Method, system, and computer-readable storage medium for identifying an offending vehicle |
| CN113470372A (en) * | 2021-05-27 | 2021-10-01 | 北京万集科技股份有限公司 | Method, system, and computer-readable storage medium for identifying an offending vehicle |
| WO2022247931A1 (en) * | 2021-05-27 | 2022-12-01 | 北京万集科技股份有限公司 | Method and system for identifying illegal traffic participant, and computer-readable storage medium |
| WO2022247932A1 (en) * | 2021-05-27 | 2022-12-01 | 北京万集科技股份有限公司 | Method and system for recognizing traffic violation participant, and computer-readable storage medium |
| CN114724363A (en) * | 2022-03-29 | 2022-07-08 | 北京万集科技股份有限公司 | Vehicle management and control method, device, equipment, storage medium and program product |
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