The proving installation of driveway deviation alarming system and methodTechnical field
The present invention relates to driveway deviation alarming system, specifically a kind of proving installation of driveway deviation alarming system and method.
Background technology
Driveway deviation alarming system generally forms primarily of HUD, forward sight camera, controller and sensor, utilize the markings of forward sight camera identification traveling lane, calculate the relative position in vehicle and track, when the unconscious run-off-road of chaufeur, sensor can collect the serviceability of vehicle data and chaufeur in time, afterwards by controller give a warning (audible alarm, image are warned, vibration of steering wheel or seat vibrations etc.) remind chaufeur to note, for chaufeur provides the more reaction time.
Therefore, driveway deviation alarming system is important role on raising vehicle safety, also makes this series products need before the use to carry out ann test and Performance Evaluation, with the alarm criteria checking product whether to reach qualified.Qualified deviation alarming product must reach low rate of failing to report, and the least possible wrong report.
At present, not yet form unified understanding to the warning performance evaluation mode of driveway deviation alarming system, there are oneself evaluation method in Ge great research institution and manufacturer.Some use driving simulators, necessary risk taking dangerous situation when advantage is to simulate real train test, more can test out the potential ability of product, the acquisition of various parameter is comparatively easy, but Platform Designing work is complicated, the more difficult foundation of simulated environment, to build cost higher.Thus, major part is more prone to real steering vectors, and advantage is the operating mode that can reflect driveway deviation alarming system the most truly, and chaufeur also can take seriously, and test result really degree is high.But in real steering vectors process, in order to reliability and the alarm condition of checkout system, the sample car being equipped with driveway deviation alarming system is needed to travel longer than 10,000 kilometers, generally the huge data volume of at least 100 hours will be formed, so need to spend a large amount of manpowers, financial resources and time to carry out data processing after having tested, the alarm condition of the fact that compare test obtains and warning, can evaluate its warning performance.
Summary of the invention
The object of the present invention is to provide a kind of proving installation and method of driveway deviation alarming system, it is convenient to searching of key scenes in data processing, promotes data-handling efficiency.
Technical scheme of the present invention is as follows:
A proving installation for driveway deviation alarming system, comprises video capture device, be fixed on be loaded with tested driveway deviation alarming system vehicle vehicle body on, for gathering track video information; Video recording apparatus, is placed in vehicle, receives the track video information from video capture device, preserves in its memory, and is shown in real time by external display screen; Data acquisition and synchronous recording equipment, obtained the track video information of vehicle-mounted CAN signal and video recording apparatus preservation, and obtain vehicle operating parameters by GPS module by CAN communication mode, and preserved in its memory by the synchronizing information obtained; Also comprise tapper, test judgement action is passed through button form with analog signal output, data acquisition and synchronous recording equipment is transferred to CAN signal through signal converting controller, for tested driveway deviation alarming system Normal Alarm, make a false report and fail to report time, the time shaft that sync mark video information is corresponding.
Further, described video capture device comprise be separately positioned on front windshield, camera above the display screen of tested driveway deviation alarming system, on left wheel fender guard and on right wheel fender guard, video recording apparatus also communication link is connected to the gps antenna that is placed in roof.
A test method for driveway deviation alarming system, comprises the steps:
A, installation testing device: on the vehicle body being loaded with tested driveway deviation alarming system vehicle, install video capture device, enable video capture device gather the display information of front road conditions, left and right wheels and lane mark position and tested driveway deviation alarming system.
Video recording apparatus placed by the passenger side instrument desk, the signal converting controller of data acquisition and synchronous recording equipment and built-in analog-to-digital conversion module and CAN module, external two gps antennas on roof, tapper is placed in the opereating specification of vehicle-mounted test personnel, connect video capture device and video recording apparatus, by data acquisition and synchronous recording equipment respectively with signal converting controller, video recording apparatus, vehicle CAN bus and one of them gps antenna connect, connect video recording apparatus and another gps antenna, connect tapper and signal converting controller.
B, debugging proving installation.
C, real steering vectors: tester holds tapper and is seated in vehicle, when test starts, test equipment is started working, the vision signal that the sending dotter signal that data acquisition and synchronous recording device synchronization registration of vehicle CAN signal, signal converting controller export, video recording apparatus export and vehicle GPS kinematic parameter signal.
The read-out of tester's Real Time Observation video recording apparatus; when tested driveway deviation alarming system there is Normal Alarm, the key scenes making a false report and fail to report time, tester is by pressing the time shaft of tapper sync mark video information until test suspends or terminates.
D, data processing: tested the data message that rear derived data collection and synchronous recording equipment store, by retrieval mark information association on time shaft corresponding to video information, corresponding vehicle operation data and video information when mark is got in playback ready, Normal Alarm in statistics key scenes, the number of times made a false report and fail to report.
E, test report: analyze the warning performance of tested driveway deviation alarming system, generate report.
Further, described video capture device is four cameras, and described four cameras are separately positioned on front windshield, above the display screen of tested driveway deviation alarming system, on left wheel fender guard and on right wheel fender guard.
Further, described tapper is provided with six buttons, six kinds of label informations of the corresponding six kinds of key scenes of six buttons, report to the police on the left of tested driveway deviation alarming system when described six kinds of key scenes are respectively that tested driveway deviation alarming system when vehicle left side departs from is reported to the police, vehicle does not depart from, vehicle left side when departing from tested driveway deviation alarming system do not report to the police, vehicle right side when departing from tested driveway deviation alarming system report to the police, vehicle report to the police on the right side of tested driveway deviation alarming system when not departing from and vehicle right side departs from time tested driveway deviation alarming system do not report to the police.
The present invention is in real steering vectors, and the real-time data synchronization of the video information gathered and Vehicular system stores by data acquisition and synchronous recording equipment, by tapper, and the time shaft that mark key scenes is corresponding.After test terminates, video information and real time data are derived, by the retrieval of label information, be associated with on corresponding time shaft, the location playback of key scenes can be realized, in conjunction with video information and real time data, gauge point is added up, the number of times obtaining Normal Alarm when left and right vehicle wheel departs from, make a false report and fail to report, realize the quick position in late time data treating process, and whole test process need not be checked, improve treatment effeciency, the convenient analysis to tested driveway deviation alarming system warning performance.
And adopt four cameras to gather the display information of front road conditions, left and right wheels and lane mark position and tested driveway deviation alarming system, centralized displaying, for tester judges that key scenes is provided convenience, tester is made to carry out quickly and accurately getting mark ready.And, arrange by carrying out multiple ID button to tapper, the statistic of classification of key words sorting and key scenes can be realized easily, promote data-handling efficiency further.
Accompanying drawing explanation
Fig. 1 is system architecture schematic diagram of the present invention;
Fig. 2 is the scheme of installation of device in an embodiment of the present invention;
Fig. 3 is the structural representation of tapper in an embodiment of the present invention;
Fig. 4 is the test flow chart of an embodiment of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
A proving installation for driveway deviation alarming system, its System's composition as shown in Figure 1, is formed primarily of data acquisition and synchronous recording equipment 1, video capture device 5, video recording apparatus 2, tapper 4 and signal converting controller 3.Wherein, video capture device 5 for gathering track video information, the mainly position of the road conditions of right ahead, left side wheel and lane mark, right side wheels and the position of lane mark and the display information of tested driveway deviation alarming system instrument.Video recording apparatus 2 needs the synchronous video information preserving above-mentioned four aspects, is kept in built-in holder, and the video information of above-mentioned four aspects of simultaneous display.Data acquisition and synchronous recording equipment 1 store as data acquisition and process core, the information in collection vehicle CAN; With video recording apparatus 2CAN communication interaction, gather the video information that video recording apparatus 2 stores; And by gps antenna synchronous acquisition vehicle movement parameter; The time shaft unified by Full Vehicle System stores video information and real time data.The information that real time data is comprised the information on above-mentioned vehicle CAN bus and collected by gps antenna, as the speed of a motor vehicle, acceleration/accel, environment visibility etc., is the indispensable information of comprehensive evaluation driveway deviation alarming system performance.
Tapper 4 adopts reset key structure, and tester produces analog signal by pressing button, and analog signal is sent to data acquisition and synchronous recording equipment 1 after signal converting controller 3 analogue to digital conversion and CAN signal conversion.Data acquisition and synchronous recording equipment 1 can adopt VBOX mono-kind equipment as Racelogic company of Britain, its expansion with CAN interface to export with the CAN of signal converting controller 3 and be connected, the CAN signal of signal converting controller 3 output is also stored by data acquisition and synchronous recording equipment 1 by the time shaft that Full Vehicle System is unified as a part for real time data.Tested driveway deviation alarming system Normal Alarm, make a false report and fail to report key scenes time press the button of tapper 4, be namely the marking signal outputing corresponding key scenes, data acquisition and synchronous recording equipment 1 gather this marking signal and correspond on time shaft.When data processing, navigate on time shaft by marking signal, recall video information when this gets mark ready and other real time data, evaluate the warning performance of driveway deviation alarming system.Data acquisition and synchronous recording equipment 1 also can be the RT-Range serial equipments of OXTS company of Britain, repeat no more here.
Video capture device 5 takes the form of four cameras 13 ~ 16, carry out four road video acquisition and outputs, for ease of obtaining the alarm message of track situation and tested driveway deviation alarming system, as shown in Figure 2, four cameras 13 ~ 16 are separately positioned on front windshield, above the display screen of tested driveway deviation alarming system, on left wheel fender guard and on right wheel fender guard, be presented in four road video sets on the read-out of video recording apparatus 2, tester with car only need observe read-out can judge that whether the situation that departs from of vehicle reality is consistent with the alarm message of tested driveway deviation alarming system.Video recording apparatus 2 is external gps antenna 11,12 on roof also, and the convenient kinematic parameter obtaining vehicle, is supplied to the more reference information of tester by read-out.
Test process of the present invention, is divided into following several step:
A, installation testing device: on the vehicle body being loaded with tested driveway deviation alarming system vehicle, install video capture device 5, make video capture device 5 can gather the display information of front road conditions, left and right wheels and lane mark position and tested driveway deviation alarming system.
Specifically, when video capture device 5 adopts the form of camera, preferably on front windshield, above the display screen of tested driveway deviation alarming system, settle a high-definition camera respectively on left wheel fender guard and on right wheel fender guard.
The signal converting controller 3 of video recording apparatus 2, data acquisition and synchronous recording equipment 1 and built-in analog-to-digital conversion module and CAN module is placed on the passenger side instrument desk; External two gps antennas 11,12 on roof, tapper 4 is placed in the opereating specification of vehicle-mounted test personnel, connect video capture device 5 and video recording apparatus 2, data acquisition is connected with signal converting controller 3, video recording apparatus 2, vehicle CAN bus and one of them gps antenna 12 respectively with synchronous recording equipment 1, connect video recording apparatus 2 and another gps antenna 11, connect tapper 4 and signal converting controller 3.
B, debugging proving installation: tapper 4 is hand-held by vehicle-mounted test personnel, and after device power, check whether each equipment normally works, whether the communication of equipment room is normal.
C, real steering vectors: tester holds tapper 4 and is seated in vehicle, when test starts, test equipment is started working, the vision signal that the sending dotter signal that data acquisition and synchronous recording equipment 1 synchronous recording vehicle CAN signal, signal converting controller 3 export, video recording apparatus 2 export and vehicle GPS kinematic parameter signal.
The read-out of tester's Real Time Observation video recording apparatus 2; when tested driveway deviation alarming system there is Normal Alarm, the key scenes making a false report and fail to report time, tester is by pressing the time shaft of tapper 4 sync mark video information until test suspends or terminates.
D, data processing: tested the data message that rear derived data collection and synchronous recording equipment 1 store, by retrieval mark Information locating on time shaft corresponding to video information, corresponding vehicle operation data and video information when mark is got in playback ready, Normal Alarm in statistics key scenes, the number of times made a false report and fail to report.
E, test report: reference standard ISO17361 2007(E) " intelligent transportation system driveway deviation alarming system performance requriements and method of inspection ", the warning performance of tested driveway deviation alarming system is analyzed, generates report.
For accelerating the processing speed being completed rear data further, when tester presses tapper 4, timely key words sorting, tapper 4 arranges button one to button 6 41 ~ 46 6 buttons, as shown in Figure 3, corresponding six physical I D.As shown in Figure 4, when observing vehicle left side and departing from, driveway deviation alarming system Normal Alarm, then press button 1 to testing process; When observing vehicle and not departing from, driveway deviation alarming system occurs reporting to the police (false) in left side, then press button 2 42; When observing vehicle left side and departing from, driveway deviation alarming system is not reported to the police (failing to report), then press button 3 43; When observing vehicle right side and departing from, driveway deviation alarming system Normal Alarm, then press button 4 44; When observing vehicle and not departing from, driveway deviation alarming system occurs reporting to the police (false) in right side, then press button 5 45; When observing vehicle right side and departing from, driveway deviation alarming system is not reported to the police (failing to report), then press button 6 46.In late time data process, statistics left side is departed from Normal Alarm, makes a false report, to be failed to report and right side is departed from Normal Alarm, made a false report, when failing to report, what only need the direct various key scenes of retrieval gets cumulative frequency ready respectively.The step of later stage statistic of classification can be omitted, promote data-handling efficiency further.