CN102789718A - Automatic invigilation scoring device for random vehicle driving test process and realization method thereof - Google Patents
Automatic invigilation scoring device for random vehicle driving test process and realization method thereof Download PDFInfo
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Abstract
The invention discloses an automatic invigilation scoring device for a random vehicle driving test process, and a realization method thereof. The device comprises a DSP (Digital Signal Processor) digital processing unit, an embedded MCU (Microprogrammed Control Unit) microcontroller, a program storage, a data storage, a core plate and an interface bottom plate, wherein the core plate is formed by an interface connector inserting piece, the DSP digital processing unit and the embedded MCU microcontroller are used as cores of the device, namely a hardware platform, the program storage on the core plate is a hardware carrier which is used for installing an operation system and application software, the data storage is used as a temporary data storage space which is necessary to be used during operation of the system, the data storage comprises an interface buffering area with an application program, and a plurality of interfaces including electrical equipment interface component circuits and mechanical interface connectors are arranged on the interface bottom plate. By using the device, and through the cooperative operation of hardware of an embedded Linux operation system and software which operates on an embedded operating system, the automatic invigilation scoring on the random vehicle driving test process can be realized.
Description
Technical field
The present invention relates to a kind of vehicle driver place driving efficiency examination device, particularly the vehicle pile examination process is invigilated scoring apparatus and implementation method automatically arbitrarily.
Background technology
At present, vehicle driver place driving efficiency is taken an examination in the post test system of used place, majority all be to through the specific vehicle after the repacking as examination vehicle object, and combine the software and hardware of PC computer to accomplish.In order to realize need not reequiping the purpose that to carry out the stake examination to examining car; Satisfy and allow any vehicle to carry out the requirement that stake is examined in the new standard as the examination vehicle; All, judge necessary corresponding foundation thereby obtain required scoring through gathering the video scene image frame and carrying out analyzing and processing and obtain examination vehicle driving trace and status informations such as advancing, retreat.
Obtain the means of these video scene images; Though some is to obtain from network through web camera or video server; But majority all is to be obtained by the video capture card of in PC, assigning, and that is to say that the hardware and software platform that all is based on PC is realized.For the examination movement locus of vehicle in the examination process and deduction of points decision state etc. must information, still extract through the PC software that on the PC hardware platform, moves, left the PC hardware and software platform, just can't be admitted to row scoring judgement to stake.
Owing in the image data processing process, need to consume a large amount of PC resources; Time resource particularly; Although therefore present PC arithmetic speed is very high, a PC also often can only be managed the examination process that a stake is examined, and is difficult to the management examination process that stake is examined more than two and two; The place post test system of these too busy to get away PCs, for the driver unit of training that uses or plan to use such place post test system, the student also has to dispose its requisite PC and PC when training operator.
Summary of the invention
The purpose of this invention is to provide a kind of can set up one do not rely on PC and work alone the stake examine the training with the examination any vehicle pile examination process invigilate scoring apparatus and implementation method automatically; To solve the above-mentioned deficiency of prior art.
The technical scheme that solves the problems of the technologies described above is: a kind of any vehicle pile examination process is invigilated scoring apparatus automatically, comprises core board and interface base plate;
Said core board comprises DSP digital processing unit, embedded MCU microcontroller, program storage, data-carrier store and interface connector plug-in unit;
Described DSP digital processing unit and embedded MCU microcontroller are as the center of device; It is hardware platform; Wherein the DSP digital processing unit is responsible for DAB and digital video are handled; Thereby obtain the various essential information such as status data of examination vehicle movement track, the embedded MCU microcontroller provides the operating system platform, makes things convenient for application development; Make the application program can be irrelevant, reach the purpose of random scalability or function with hardware device;
Program storage on the core board is to be used for the hardware carrier of installing operating system and application software, and the ephemeral data storage space that must use when data-carrier store is system works is comprising the interface buffer that application program is arranged;
Said interface base plate be provided with comprise electrical apparatus interface components and parts circuit and mechanical interface connector with lower interface: the audio frequency IO interface of can answer tube and plug-in public address system; The hyperchannel input and output general-purpose interface of using for expanded function; The display screen interface that connects plug-in display, the 10/100M Ethernet interface that is connected with ethernet device, the video that connects the place video camera is imported B interface; Connect the video input A interface of cloud mirror all-in-one 32; The RS-485 interface that carries out communication with equipment with RS-485 interface, with the RS-232 interface that the equipment with RS-232 interface carries out communication, the interface connector plug-in unit of interface base plate;
Between core board and the interface base plate or directly link to each other or connect through the interface connector plug-in unit; When directly linking to each other between core board and the interface base plate; Be connected to the device signal of backplane interface, after handling through the corresponding interface treatment circuit, directly be sent on the core board; When connecting through the interface connector plug-in unit between core board and the interface base plate, corresponding being assembled together of interface connector plug-in unit of interface connector plug-in unit with interface base plate through core board between core board and the interface base plate; Be connected to the device signal of backplane interface, after handling through the corresponding interface treatment circuit, be sent on the core board through the interface connector plug-in unit of interface base plate and the interface connector plug-in unit of core board respectively;
This device utilizes video input A interface; Obtain the video image that the examinee is carried out the identity discriminating through cloud mirror all-in-one; Utilize video input B interface, come stake examination process is carried out real-time follow-up through the place video camera, the driving trace of car examined in record on the one hand; The frame live view when record deduction of points is judged is again on the other hand examined score inquiry for examinee's stake the image foundation is provided;
Through audio frequency IO interface and plug-in public address system, in stake examination process, carry out voice suggestion to the examinee in time, make the examinee can understand procedural informations such as examination request, examination judgement content and result of determination easily; Through audio input interface, momentarily carry out voice dialogue as required with the PC of long-distance on-line, make things convenient for field maintemance personnel and long-range PC operator to link up with voice;
Obtain the sensor signal on ground, examination hall through RS-232 interface or RS-485 interface, thereby phenomenons such as the grazing stake bar that occurs in the examination process, vehicle body outlet are judged;
Through RS-485 interface or Ethernet interface and host computer networking; In time identity is differentiated video in host computer output examinee stake examination process; Stake examination hall video; Examine car movement locus coordinate, the record picture is judged in deduction of points, and examines status informations such as car advances, retreats, stops, stop working and other and be designated as and need the data that export; Through set network interface, can also accept various commander's instructions that host computer is assigned, carry out collaborative work with host computer;
This device also receives the sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 interface or RS-485 interface, keeps watch on examination vehicle and examinee's operational circumstances at any time.
Its further technical scheme is: said core board or be made up of or by integrated thick film circuit or the SOC(system on a chip) SoC I that constitutes that be packaged together of above-mentioned components and parts constituted the interface connector plug-in unit of DSP digital processing unit, embedded MCU microcontroller, program storage, data-carrier store and core board of encapsulation respectively; Or integrate the SOC(system on a chip) SoC II that constitutes by DSP digital processing unit, embedded MCU microcontroller and FPGA and constitute, can also form by the integrate interface connector plug-in unit of the SOC(system on a chip) SoC III, program storage, data-carrier store and the core board that constitute of DSP digital processing unit, embedded MCU microcontroller.
Said through the networking of Ethernet interface and host computer, be employing through wireless ethernet or the civilian power line modem of Ethernet among both a kind of mode or adopt two kinds of this modes that backup each other to realize simultaneously; Said through RS-485 interface and host computer networking, be to adopt universal serial bus or wireless data transmission equipment to realize.
Saidly receive the onboard sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 interface or RS-485 interface, be and onboard sensor between through the wireless data transmission modulator-demodular unit that abbreviates wireless data transmission equipment as realize or all pass through the Ethernet modular converter after adopt this mode of wireless ethernet to realize again; The two can backup each other or only adopt one of them.
Its further technical scheme be: this device is utilized as the external unit that hyperchannel input and output general-purpose interface that expanded function uses connects and comprises: plug-in keyboard/touch-screen, heater-driven module, mass storage hard disk, flash disk, ambient temperature and humidity sensor; Analog quantity and switching value input-output device; Printer output equipment and/or MMC/SD storage card, said external equipment are selected wherein a kind, 2 kinds or multiple as required.
The hyperchannel input and output general-purpose interface of this device also is reserved with the interface that the buttons such as " beginning/end " that supplies training and examination operation is connected, and through plug-in wireless data transmission equipment, can also be connected with the wireless buttons such as " beginning/end " installed on the car.
This device connects the additional plug-in display that is provided with and is connected plug-in keyboard/touch-screen through hyperchannel input and output general-purpose interface through display screen interface in this locality, accepts local operator and carries out basic operations such as various corresponding setting, inquiry through plug-in keyboard/touch-screen.
Its another relevant technical scheme is: a kind of method that realizes any vehicle pile examination process is invigilated automatically scoring, and it is to utilize the above-mentioned any vehicle pile examination process of the present invention to invigilate scoring apparatus automatically, the machine vision through multimedia digital processor DSP and ccd video camera formation also combines digitizing switch amount collector; Judgements of invigilating automatically and mark of training that the field pile of vehicle driver place driving efficiency examination is examined and examination process is that the collaborative work of hardware and the software that on embedded OS, moves through the operation built-in Linux operating system comes common realization, and the module that said application software comprises has: the communication receiving/transmission device; The data volume collector, data backup device, analog quantity acquiring device; The achievement scorer, audio signal sample device, vehicle movement information acquisition device; The video signal collective device; The switch acquisition device, operator's man-machine interface, character Voice decoder; Switchgear actuator; The digital device driver, data link and data maintenance device, each module all is contained on the built-in Linux operating system;
The effect of said communication receiving/transmission device is to network with host computer or the miscellaneous equipment with corresponding communications protocol;
Said digital data acquisition device is connected with the communication receiving/transmission device with built-in Linux operating system respectively, and its effect is the physical quantity information after the collection digitizing;
Said data backup device be used to preserve driver's total marks of the examination and examination process other think the information of needs reservation;
Said analog quantity acquiring device is gathered analog quantity through the analog to digital conversion interface;
Said achievement scorer is to carrying out Analysis And Evaluation from the information in examination vehicle and examination hall, and provides final total marks of the examination;
Said audio signal sample device converts simulated audio signal to digital audio-frequency data through audio input interface;
Said video signal collective device obtains digital of digital video data and passes to the vehicle movement information acquisition device through video input interface;
Said switch acquisition device is through the parallel direct read switch amount of input interface status information;
Said vehicle movement information acquisition device is through obtaining the motion object information such as motion state and movement locus of examination vehicle to the analysis of digital of digital video data;
Said operator's man-machine interface is accepted site operation people's instruction and is explained and carry out, and also tells this site operation people execution result simultaneously;
Said character Voice decoder is accomplished and is converted the character cue to the voice suggestion signal, and drives plug-in public address system through audio output interface, makes the enough ears of tester's ability obtain the prompting or the requirement of this scoring apparatus through loudspeaker;
Said switchgear actuator is directly exported switching value device drives signal through parallel output interface;
Said digital device driver is connected with the communication receiving/transmission device with built-in Linux operating system respectively, comes to carry out communication with driven external unit through general input and output communication interface;
Said data link is connected with the communication receiving/transmission device with built-in Linux operating system respectively, to carrying out modulation and demodulation through the data that communication network exchanges;
Said data maintenance device is connected with the communication receiving/transmission device with built-in Linux operating system respectively, obtains initialization datas such as examination standards of grading and other regulation from host computer or mobile memory.
Total workflow of this method is:
S101: system initialization, software and hardware is checked, and needed the variable of initial value to give initial value;
S102: invigilate the involved application program of scoring automatically from program storage guiding embedded OS and loading;
S103: after the application program operation, and need constantly to judge whether before examination to examine carrying out stake? Stake is examined if desired, then gets into step s104, if do not need stake to examine, directly gets into s105;
S104: beginning stake examination back gets into s105;
S105: in stake before examination or after finishing, get into and wait for and carry out following several kinds of attended operations:
Get into operating system environment,
Field earth signal self check,
The regional picture profile of examination is set,
Call in examination judgment criteria and other initialization data from host computer or movable storage device,
Video parameter is set, comprises port, brightness, contrast, colourity and saturation degree,
Speech engine is set, selects a kind of among voice IC, voice document or the sound bank;
S106: after above-mentioned work all finishes, just review and validate and withdraw from? If do not withdraw from, then return s103, if withdraw from, then get into s107;
S107: shutdown system.
Described s104 stake examination flow process comprises:
S201: call in initialization data necessary when taking an examination;
Does S202: inspection have examinee information? If the examination of then being labeled as is arranged and gets into S203, if do not have the training of then being labeled as and get into S205,
S203: carry out examinee's identity earlier before the examination beginning and differentiate;
Is S204: the affirmation identity authentication passed through? If through then getting into S205, otherwise return S202;
S205: begin following execution command is gathered and analyzed:
1. have or not key informations such as local beginning/end?
2. have or not beginning/key informations such as end from wireless data transmission equipment?
3. have or not " beginning/end " execution command information of obtaining through Ethernet interface from PC
4. have or not the execution command information of obtaining through NI Vision Builder for Automated Inspection such as " beginning/end "
If one of above information exists, then get into S206, if do not have, then return S202;
S206: the examination process monitoring gets into S207 after monitoring is accomplished;
S207: have or not the information of withdrawing from? If entering S208 is arranged, otherwise return S202;
S208: withdraw from stake and examine program.
Said S206: examination process monitoring program comprises:
S301: voice suggestion examination beginning;
S302: carry out an earth signal and examination hall video acquisition in real time and send host computer to;
S303: examination process analysis procedure analysis and achievement are judged, utilize the field earth signal and the video data that collect, the examination process analyzed, and the judgement of achieving the result;
S304: transmit the Analysis And Evaluation result and give host computer;
S305: confirm that whether current exercise or examination process finish or accomplish if finish or accomplish, and then get into S306, otherwise return S302;
S306: confirm it is exercise? If exercise then gets into S308, otherwise get into S307;
S307: preserve data: get into S308 after preservation total marks of the examination and other are appointed as the information that must preserve;
S308: withdraw from the examination process monitoring.
S303 in the said examination process monitoring program: process analysis procedure analysis and achievement determination flow comprise:
S401: obtain an earth signal and examination hall vedio data;
S402: driving trace and the direction of confirming vehicle;
S403: judge whether the driving trace of vehicle and direction qualified? If if qualified entering S405 defective, then gets into S404;
S404: write down a defective frame picture and a result of determination when judging;
S405: get into S406 after the result of determination with the voice suggestion examination;
S406: output Analysis And Evaluation result.
In the said stake examination flow process, S203 examinee's identity identification flow comprises:
S501: obtain identity and differentiate vedio data, analyze and handle to differentiate video image from the identity of video input A interface;
S502: from motion tracking examinee head portrait;
S503: form FSCaller;
S504: output attaches the identity of FSCaller and differentiates video.
Because adopt said structure, any vehicle pile examination process of the present invention invigilates scoring apparatus automatically and implementation method has following beneficial effect:
1, a stake that does not rely on PC and work alone be can set up and training and the system of taking an examination examined;
2, when PC or network communication fault, can not influence the examinee and proceed training and the examination that stake is examined;
3, make a PC can integrated management stake is examined more than two and two training and examination process;
4, be convenient to all kinds of existing places post test system and under the condition that does not change its original base structure, upgrade efficiently, transform, can improve the service efficiency of place post test system largely;
5, to using the place post test system of this device, more convenient in system maintenance, faster;
6, owing to used operation and the management platform of operating system as application software, so the upgrading of function and aspect of performance is all more convenient, also can not cause the similar scoring apparatus of overlapping investment even that is to say new examination rule appearance;
7, owing to used the machine vision theory and technology, therefore need not to customize specific vehicle as the examination vehicle, that is to say, vehicle is not carrying out the driving efficiency examination that project is examined in stake through can directly being used under the situation of any repacking as the examination vehicle yet arbitrarily;
8, owing to adopt known common hardware to make up application platform; The user can buy on market more easily and obtain, so hardware apolegamy scope is bigger and comparatively flexible and changeable, makes the after-sales service of hardware system more secure; Troubleshooting time is short, and maintenance cost is low.
Below, the technical characterictic of a kind of any vehicle pile examination process of the present invention being invigilated scoring apparatus and implementation method automatically in conjunction with accompanying drawing and embodiment is further described.
Description of drawings
Fig. 1: core board structural representation;
Fig. 2-1: pass through interface connector plug-in unit annexation synoptic diagram between interface base plate II a interface structure and interface base plate II a and the core board I a;
Fig. 2-2: core board I b is directly installed on the structural representation on the interface base plate II b;
Fig. 3: the synoptic diagram that is connected of interface base plate and peripheral hardware;
Fig. 4: the synoptic diagram that is connected of built-in Linux operating system and application software;
Fig. 5: start stop system process flow diagram;
Fig. 6: stake examination process flow diagram:
Fig. 7: examination process monitoring process flow diagram;
Fig. 8: examination process analysis procedure analysis and achievement decision flowchart;
Fig. 9: examination personnel identity identification flow figure.
Among the figure:
I, I a, I b-core board, I a – has the core board of interface connector plug-in unit, and I b – is not with the core board of interface connector plug-in unit; II, II a, II b-interface base plate, II a-the have interface base plate of interface connector plug-in unit, II b-not is with the interface base plate of interface connector plug-in unit; III-man-machine interface, the IV-ccd video camera of composition machine vision and the connector of base plate;
The 101-DSP digital processing unit, 102-embedded MCU microcontroller, 103-program storage, 104-data-carrier store, 105, the interface connector plug-in unit of 106-core board;
201-audio frequency IO interface, 202-hyperchannel input and output general-purpose interface, 203-display screen interface; The 204-10/100M Ethernet interface; 205-video input B interface, 206-video input A interface, 207-RS-485 interface; The 208-RS-232 interface, 209, the interface connector plug-in unit of 210-interface base plate;
External equipment comprises:
31-place video camera, 32-cloud mirror all-in-one, 33-MMC/SD storage card, 34-printer output equipment; 35-analog quantity and switching value input-output device, 36-ambient temperature and humidity sensor, USB devices such as 37-flash disk, 38-mass storage hard disk; 39-IIC and SPI and CAN bus apparatus interface, 40-heater-driven module, the plug-in keyboard/touch-screen of 41-, the plug-in public address system of 42-; The plug-in display of 43-, 44-ethernet device, 45-have the equipment of RS-232 interface.
Software configuration comprises:
51-communication receiving/transmission device, 52-digital data acquisition device, 53-data backup device; The 54-analog quantity acquiring device, 55-achievement scorer, 56-audio signal sample device; 57-video signal collective device, 58-switch acquisition device, 59-vehicle movement information acquisition device; 60-operator's man-machine interface, 61-character Voice decoder, 62-switchgear actuator; 63-digital device driver, 64-data link, 65-data maintenance device.
Abbreviation and meaning thereof in the literary composition:
DSP-Digital Signal Processing, i.e. digital signal processor;
MCU-Micro Control Unit), promptly microcontroller also is called as single-chip microcomputer habitually;
FPGA-Field-Programmable Gate Array, i.e. field programmable gate array;
CPLD-Complex Programmable Logic Device, i.e. CPLD;
SoC-Systems-on-a-Chip; SOC(system on a chip) SoC comprises three kinds; First kind is meant a kind of combined type IC chip or the thick film circuit that together is made up of DSP digital processing unit, embedded MCU microcontroller and necessary data-carrier store and program storage mutual encapsulation, and note is done: SOC(system on a chip) SoC I;
Second kind is meant by DSP digital processing unit, embedded MCU microcontroller and FPGA and integrates the IC chip that constitutes, and note is done: SOC(system on a chip) SoC II, like the TMS320DM6446 processor;
The third is meant the SOC(system on a chip) SoC III that is integrated and constituted by DSP digital processing unit, embedded MCU microcontroller.
Embodiment
Embodiment one:
A kind of any vehicle pile examination process is invigilated scoring apparatus automatically, comprises core board I and interface base plate II;
Said core board I be by DSP digital processing unit 101, embedded MCU microcontroller 102 integrate the SOC(system on a chip) SoC III that constitutes (
Like TMS320DM6446), the core board I a that forms of the interface connector plug-in unit 105,106 of program storage 103, data-carrier store 104 and core board, this core board I a is an independent PCB circuit board (referring to Fig. 1);
Described DSP digital processing unit 101 and the center of embedded MCU microcontroller 102 as device, i.e. hardware platform; Wherein DSP digital processing unit 101 is responsible for DAB and digital video are handled, thereby obtains the various essential information such as status data of examination vehicle movement track; Embedded MCU microcontroller 102 provides the operating system platform; Make things convenient for application development; Make the application program can be irrelevant, reach the purpose of random scalability or function, so that can adapt to the Examination Rate of continuous corrigendum or modification and the requirement of administrative standard better with hardware device;
In said interface base plate II is interface base plate II a; This interface base plate II a also is an independent PCB circuit board; It is provided with comprise electrical apparatus interface components and parts circuit and mechanical interface connector with lower interface: the audio frequency IO interface 201 of can answer tube and plug-in public address system 42, be the hyperchannel input and output general-purpose interface 202 that expanded function is used, connect the display screen interface 203 of plug-in display 43; The 10/100M Ethernet interface 204 that is connected with ethernet device 44; Connect the video input B interface 205 of place video camera 31, connect the video input A interface 206 of cloud mirror all-in-one 32, the RS-485 interface 207 that carries out communication with equipment with RS-485 interface; With the RS-232 interface 208 that the equipment with RS-232 interface 45 carries out communication, the interface connector plug-in unit 209,210 of interface base plate;
Interface connector plug-in unit 209,210 corresponding being assembled together (referring to Fig. 2-1) of interface connector plug-in unit 105,106 with interface base plate through core board between core board I a and the interface base plate II a; Be connected to the device signal of backplane interface, after handling through the corresponding interface treatment circuit, be sent on the core board I a through the interface connector plug-in unit 209,210 of interface base plate and the interface connector plug-in unit 105,106 of core board respectively;
This device utilizes video input A interface 206; Obtain through cloud mirror all-in-one 32 examinee is carried out the video image that needs when identity is differentiated; Utilize video input B interface 205, stake examination process is carried out real-time follow-up, obtain the driving trace of examining car on the one hand through place video camera 31; Frame live view in the time of can obtaining the deduction of points judgement is on the other hand again examined score inquiry for examinee's stake the image foundation is provided;
Through audio frequency IO interface 201 and plug-in public address system 42, in stake examination process, carry out voice suggestion to the examinee in time, make the examinee can understand procedural informations such as examination request, examination judgement content and result of determination easily; Through audio input interface, momentarily carry out voice dialogue as required with the PC of long-distance on-line, make things convenient for field maintemance personnel and long-range PC operator to link up with voice;
Obtain the sensor signal on ground, examination hall through RS-232 interface 208 or RS-485 interface 207, thereby phenomenons such as the grazing stake bar that occurs in the examination process, vehicle body outlet are judged;
Through RS-485 interface 207 or Ethernet interface 204 and host computer networking, in time identity is differentiated video, stake examination hall video, is examined car movement locus coordinate in host computer output examinee stake examination process, deduction of points judges the record picture and examine status informations such as car advances, retreats, stops, stop working and other is designated as and needs the data that export; Through set network interface, can also accept various commander's instructions that host computer is assigned, carry out collaborative work with host computer.
This device also can receive the sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 interface 208 or RS-485 interface 207, keeps watch on examination vehicle and examinee's operational circumstances at any time;
This device comprises through the external unit that the hyperchannel input and output general-purpose interface of using for expanded function 202 connects: plug-in keyboard/touch-screen 41; Heater-driven module 40, mass storage hard disk 38, flash disk 37; Ambient temperature and humidity sensor 36; Analog quantity and switching value input-output device 35, printer output equipment 34 and/or MMC/SD storage card 33, said external equipment are selected wherein a kind, 2 kinds or multiple as required; For example: according to the measured value of ambient temperature and humidity sensor 36, carry out dehumidifying work through heater-driven module 40, guaranteeing under the high humidity environment still can operate as normal; In addition, this hyperchannel input and output general-purpose interface 202 is provided with in order to adapt to multiple function expansion, in the time need not expanding some function, can not reserve its corresponding interface.
This device also can connect the additional plug-in display 43 that is provided with and be connected plug-in keyboard/touch-screen 41 through hyperchannel input and output general-purpose interface 202 through display screen interface 203 in this locality, accepts local operator and carries out basic operations such as various corresponding setting, inquiry through plug-in keyboard/touch-screen 41;
This device also can receive the sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 IO interface 208 or RS-485 IO interface 207, keeps watch on examination vehicle and examinee's operational circumstances at any time; Saidly receive the onboard sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 IO interface 208 or RS-485 IO interface 207, be and onboard sensor between through the wireless data transmission modulator-demodular unit that abbreviates wireless data transmission equipment as realize or all pass through the Ethernet modular converter after adopt this mode of wireless ethernet to realize again; The two can backup each other or only adopt one of them.
Said through Ethernet interface 204 and host computer networking, be adopt through wireless ethernet or the civilian power line modem of Ethernet among both a kind of mode or adopt two kinds of this modes that backup each other to realize simultaneously; Said through RS-485 interface 207 and host computer networking, adopt universal serial bus or wireless data transmission equipment to realize.
A kind of conversion as the embodiment of the invention; Said core board I can also be the DSP digital processing unit 101 that encapsulates by respectively; Embedded MCU microcontroller 102; Program storage 103, the interface connector plug-in unit 105,106 of data-carrier store 104 and core board constitute or by integrated thick film circuit or the SOC(system on a chip) SoC I that constitutes that be packaged together of above-mentioned components and parts constituted; Or integrate the integrated circuit that constitutes or thick film circuit-SOC(system on a chip) SoC II constitutes by DSP digital processing unit, embedded MCU microcontroller and FPGA; Connection between core board I and the interface base plate II also can be omitted the interface connector plug-in unit 209,210 of interface base plate, and SOC(system on a chip) SoC I or SOC(system on a chip) SoC II directly are assemblied on the interface base plate II;
As a kind of conversion of the embodiment of the invention, can also the DSP digital processing unit 101 on the core board I, embedded MCU microcontroller 102, program storage 103, data-carrier store 104 be welded direct to and form individual pcb board on the interface base plate II; Or will close and be that the 1 SOC(system on a chip) SoC III (like TMS320DM6446), program storage 103, the data-carrier store 104 that constitute is welded direct to interface base plate II b and goes up and form individual pcb board (referring to Fig. 2-2) by DSP digital processing unit 101, embedded MCU microcontroller 102; At this moment; Be connected to the device signal of the interface of interface base plate II b; After process corresponding interface treatment circuit is handled, directly be sent on the core board I b through the interface base plate respectively.
DSP can be the C6000 series multimedia chip TMS320DM642 of the TI of TIX; Also can be the multimedia DSP of other brand; Embedded microcontroller MCU can be the product of ARM series A RM9 or ARM11 or other company; The first-selected DSP of the present invention is TMS320DM6446, and it is embedded ARM9 microcontroller can move built-in Linux or embedded Windows CE.
Do not work alone in order not rely on host computer; Also be reserved with the interface that confession is trained and the buttons such as " beginning/end " of examination operation is connected through hyperchannel input and output general-purpose interface 202; Through plug-in wireless data transmission equipment; Can also be connected with the wireless buttons such as " beginning/end " installed on the car, make things convenient for the examinee to train and take an examination; Generally, this button signal such as " beginning/end " is to be given birth to from movable property through the process of observing examination vehicle turnover examination district by NI Vision Builder for Automated Inspection, that is to say can not want operate manually good.
The ethernet device 44 that Ethernet interface 204 can connect generally is meant one of following equipment that has Ethernet interface: router, switch, ADSL Modem, civilian power line modem, wireless transceiver, wireless ethernet equipment, PC.
Mass storage mainly is meant hard disk and flash disk; Mainly be used for storing multimedia and some initiation parameter files; As carry out audio file, examinee's discriminating image, the video monitoring image of examination process, the regional picture profile of examination that voice suggestion uses parameter, examination judgment criteria, voice document and sound bank etc. are set; If do not need these multi-medium datas and initiation parameter file; Or manage these multi-medium datas and initiation parameter by the host computer that joins on network, then can not need be installed on this automatic scoring device; Similarly, when those external units that can connect unwanted the time, can dispense and needn't be installed on this automatic scoring device.
Embodiment two:
A kind of method that realizes any vehicle pile examination process is invigilated automatically scoring is to utilize embodiment one said any vehicle pile examination process to invigilate the method that scoring apparatus realizes any vehicle pile examination process is invigilated automatically scoring automatically, and it is through the machine vision of multimedia digital processor DSP and ccd video camera formation and combines digitizing switch amount collector; Judgements of invigilating automatically and mark of training that the field pile of vehicle driver place driving efficiency examination is examined and examination process is that the collaborative work of hardware and the software that on embedded OS, moves through the operation built-in Linux operating system comes common realization, and the module that said application software comprises has: communication receiving/transmission device 51; Data volume collector 52, data backup device 53, analog quantity acquiring device 54; Achievement scorer 55, audio signal sample device 56, video signal collective device 57; Switch acquisition device 58; Vehicle movement information acquisition device 59, operator's man-machine interface 60, character Voice decoder 61; Switchgear actuator 62; Digital device driver 63, data link 64 and data maintenance device 65, each module all is contained in (referring to Fig. 4) on the built-in Linux operating system;
The effect of said communication receiving/transmission device 51 is to network with host computer or the miscellaneous equipment with corresponding communications protocol;
Said digital data acquisition device 52 is connected with communication receiving/transmission device 51 with built-in Linux operating system respectively, and its effect is the physical quantity information after the collection digitizing;
Said data backup device 53 be used to preserve driver's total marks of the examination and examination process other think the information of needs reservation;
Said analog quantity acquiring device 54 is gathered analog quantity through the analog to digital conversion interface;
55 pairs of information from examination vehicle and examination hall of said achievement scorer are carried out Analysis And Evaluation, and provide final total marks of the examination;
Said audio signal sample device 56 converts simulated audio signal to digital audio-frequency data through audio input interface;
Said video signal collective device 57 obtains digital of digital video data and passes to vehicle movement information acquisition device 59 through video input interface;
Said switch acquisition device 58 is through the parallel direct read switch amount of input interface status information;
Said vehicle movement information acquisition device 59 is through obtaining the motion object information such as motion state and movement locus of examination vehicle to the analysis of digital of digital video data;
Said operator's man-machine interface 60 is accepted site operation people's instruction and is explained and carry out, and also tells this site operation people execution result simultaneously;
Said character Voice decoder 61 is accomplished and is converted the character cue to the voice suggestion signal, and drives plug-in public address system through audio output interface, makes the enough ears of tester's ability obtain the prompting or the requirement of this scoring apparatus through loudspeaker;
Said switchgear actuator 62 is directly exported switching value device drives signal through parallel output interface;
Said digital device driver 63 is connected with communication receiving/transmission device 51 with built-in Linux operating system respectively, comes to carry out communication with driven external unit through general input and output communication interface;
Said data link 64 is connected with communication receiving/transmission device 51 with built-in Linux operating system respectively, to carrying out modulation and demodulation through the data that communication network exchanges;
Said data maintenance device 65 is connected with communication receiving/transmission device 51 with built-in Linux operating system respectively, obtains initialization datas such as examination standards of grading and other regulation from host computer or mobile memory.
The present invention is the application software of operation platform with the (SuSE) Linux OS, i.e. stake is examined the main effect of program and is:
1, identity discriminating video image is analyzed and handled,, form FSCaller, and will output in the PC, differentiate so that the staff carries out identity more fast to the examinee with the video image of FSCaller from motion tracking examinee head portrait.
2, ground video image in stake examination hall is analyzed and handled, examine the car track that goes, recording track coordinate from motion tracking; Confirm whether travel direction is reversing, combine an earth signal simultaneously, in real time examination result is judged; In case it is defective examination to occur, then instant recording one frame live view.
3, when exercise; According to ground, stake examination hall video image; Through the machine vision functional module, automatically exercise vehicle turnover start position is carried out real time monitoring and identification, so that under divorced from computer and the situation of not having anyone action button, still do not influence student's training that has simulated tests.
4, combine with ccd video camera and video image digital collection system; Constitute the digital machine vision system; Realization is accurately followed the tracks of examination or training vehicle in the place, obtains vehicle operating direction and position coordinates, forms the vehicle driving trace curve; And identification is to begin examination or for examination finishes, necessary signals such as a beginning and end are provided for examination process monitoring module.
5, for post test system essential man-machine interface is provided; Make this scoring apparatus realize networking and communication with the external unit that comprises host computer well; For field maintemance is provided convenience; Can accept field staff's operation with open arms,, make the driver can understand own present driving efficiency and process status in time through voice module.
The method of scoring is invigilated in said realization automatically to any vehicle pile examination process total workflow (referring to Fig. 5) is:
S101: system initialization, software and hardware is checked, and needed the variable of initial value to give initial value;
S102: invigilate the involved application program of scoring automatically from program storage 103 guiding embedded OSs and loading;
S103: after the application program operation, and need constantly to judge whether before examination to examine carrying out stake? Stake is examined if desired, then gets into step s104, if do not need stake to examine, directly gets into s105;
S104: beginning stake examination back gets into s105;
S105: in stake before examination or after finishing, get into and wait for and carry out following several kinds of attended operations:
Get into operating system environment,
Field earth signal self check,
The regional picture profile of examination is set,
Call in examination judgment criteria and other initialization data from host computer or movable storage device,
Video parameter is set, comprises port, brightness, contrast, colourity and saturation degree,
Speech engine is set, selects a kind of among voice IC, voice document or the sound bank;
S106: after above-mentioned work all finishes, just review and validate and withdraw from? If do not withdraw from, then return s103, if withdraw from, then get into s107;
S107: shutdown system.
The present invention realizes any vehicle pile examination process is invigilated in total workflow of method of scoring automatically, and described s104 stake examination flow process (referring to Fig. 6) comprising:
S201: call in initialization data necessary when taking an examination;
Does S202: inspection have examinee information? If the examination of then being labeled as is arranged and gets into S203, if do not have the training of then being labeled as and get into S205,
S203: carry out examinee's identity earlier before the examination beginning and differentiate;
Is S204: the affirmation identity authentication passed through? If through then getting into S205, otherwise return S202;
S205: begin following execution command is gathered and analyzed:
1. have or not key informations such as local beginning/end?
2. have or not beginning/key informations such as end from wireless data transmission equipment?
3. have or not " beginning/end " execution command information of obtaining through Ethernet interface 204 from PC
4. have or not the execution command information of obtaining through NI Vision Builder for Automated Inspection such as " beginning/end "
If one of above information exists, then get into S206, if do not have, then return S202;
S206: the examination process monitoring gets into S207 after monitoring is accomplished;
S207: have or not the information of withdrawing from? If entering S208 is arranged, otherwise return S202;
S208: withdraw from stake and examine program.
Described realization is invigilated any vehicle pile examination process in the stake examination flow process of method of scoring automatically, and described S206: examination process monitoring program (referring to Fig. 7) comprising:
S301: voice suggestion examination beginning;
S302: carry out an earth signal and examination hall video acquisition in real time and send host computer to;
S303: examination process analysis procedure analysis and achievement are judged, utilize the field earth signal and the video data that collect, the examination process analyzed, and the judgement of achieving the result;
S304: transmit the Analysis And Evaluation result and give host computer;
S305: confirm that whether current exercise or examination process finish or accomplish if finish or accomplish, and then get into S306, otherwise return S302;
S306: confirm it is exercise? If exercise then gets into S308, otherwise get into S307;
S307: preserve data: get into S308 after preservation total marks of the examination and other are appointed as the information that must preserve;
S308: withdraw from the examination process monitoring.
In described examination process monitoring program, said S303: examination process analysis procedure analysis and achievement determination flow (referring to Fig. 8) comprising:
S401: obtain an earth signal and examination hall vedio data;
S402: driving trace and the direction of confirming vehicle;
S403: judge whether the driving trace of vehicle and direction qualified? If if qualified entering S405 defective, then gets into S404;
S404: write down a defective frame picture and a result of determination when judging;
S405: get into S406 after the result of determination with the voice suggestion examination;
S406: output Analysis And Evaluation result.
The present invention realizes any vehicle pile examination process is invigilated in total workflow of method of scoring automatically, and described S203 examinee's identity identification flow (referring to Fig. 9) comprising:
S501: obtain identity and differentiate vedio data, analyze and handle to differentiate video image from the identity of video input A interface;
S502: from motion tracking examinee head portrait;
S503: form FSCaller;
S504: output attaches the identity of FSCaller and differentiates video.
Claims (13)
1. any vehicle pile examination process is invigilated scoring apparatus automatically, it is characterized in that: this device comprises core board (I) and interface base plate (II);
Said core board (I) comprises DSP digital processing unit (101), embedded MCU microcontroller (102), program storage (103), data-carrier store (104) and interface connector plug-in unit (105), (106);
Described DSP digital processing unit (101) and embedded MCU microcontroller (102) are as the center of device; Be hardware platform, wherein DSP digital processing unit (101) is responsible for DAB and digital video are handled, thereby obtains the various essential information such as status data of examination vehicle movement track; Embedded MCU microcontroller (102) provides the operating system platform; Make things convenient for application development, make the application program can be irrelevant, reach the purpose of random scalability or function with hardware device;
Program storage (103) on the core board (I) is to be used for the hardware carrier of installing operating system and application software, and the ephemeral data storage space that data-carrier store (104) must use when being system works is comprising the interface buffer that application program is arranged;
Said interface base plate (II) be provided with comprise electrical apparatus interface components and parts circuit and mechanical interface connector with lower interface: the audio frequency IO interface (201) of can answer tube and plug-in public address system (42); The hyperchannel input and output general-purpose interface of using for expanded function (202); The display screen interface (203) that connects plug-in display (43); The 10/100M Ethernet interface (204) that is connected with ethernet device (44); Connect the video input B interface (205) of place video camera (31); Connect the video input A interface (206) of cloud mirror all-in-one (32), the RS-485 interface (207) that carries out communication with equipment, the RS-232 interface (208) that carries out communication with the equipment with RS-232 interface (45) with RS-485 interface;
Between core board and the interface base plate or directly link to each other or connect through the interface connector plug-in unit; When directly linking to each other between core board and the interface base plate; Be connected to the device signal of backplane interface, after handling through the corresponding interface treatment circuit, directly be sent on the core board; When connecting through the interface connector plug-in unit between core board and the interface base plate, corresponding being assembled together of interface connector plug-in unit (209,210) of interface connector plug-in unit (105,106) with interface base plate through core board between core board and the interface base plate; Be connected to the device signal of backplane interface, after handling through the corresponding interface treatment circuit, be sent on the core board through the interface connector plug-in unit (209,210) of interface base plate and the interface connector plug-in unit (105,106) of core board respectively;
This device utilizes video input A interface (206); Obtain the video image that the examinee is carried out the identity discriminating through cloud mirror all-in-one (32); Utilize video input B interface (205), through place video camera (31) stake examination process is carried out real-time follow-up, the driving trace of car examined in record on the one hand; The frame live view when record deduction of points is judged is again on the other hand examined score inquiry for examinee's stake the image foundation is provided;
Through audio frequency IO interface (201) and plug-in public address system (42), in stake examination process, carry out voice suggestion to the examinee in time, make the examinee can understand procedural informations such as examination request, examination judgement content and result of determination easily; Through audio frequency IO interface (201), as required momentarily with long-distance on-line PC carry out voice dialogue, make things convenient for field maintemance personnel and long-range PC operator to link up with voice;
Obtain the sensor signal on ground, examination hall through RS-232 interface (208) or RS-485 interface (207), thereby phenomenons such as the grazing stake bar that occurs in the examination process, vehicle body outlet are judged;
Through RS-485 interface (207) or Ethernet interface (204) and host computer networking; In time identity is differentiated video in host computer output examinee stake examination process; Stake examination hall video; Examine car movement locus coordinate, the record picture is judged in deduction of points, and examines status informations such as car advances, retreats, stops, stop working and other and be designated as and need the data that export; Through set network interface, can also accept various commander's instructions that host computer is assigned, carry out collaborative work with host computer;
This device also receives the sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 interface (208) or RS-485 interface (207), keeps watch on examination vehicle and examinee's operational circumstances at any time.
2. any vehicle pile examination process according to claim 1 is invigilated scoring apparatus automatically, it is characterized in that: said core board (I) or be made up of or by integrated thick film circuit or the SOC(system on a chip) SoC I that constitutes that be packaged together of above-mentioned components and parts constituted the interface connector plug-in unit (105,106) of DSP digital processing unit (101), embedded MCU microcontroller (102), program storage (103), data-carrier store (104) and the core board of encapsulation respectively; Or integrate the SOC(system on a chip) SoC II that constitutes by DSP digital processing unit, embedded MCU microcontroller and FPGA and constitute, can also form by the integrate interface connector plug-in unit (105,106) of the SOC(system on a chip) SoC III, program storage (103), data-carrier store (104) and the core board that constitute of DSP digital processing unit (101), embedded MCU microcontroller (102).
3. any vehicle pile examination process according to claim 1 is invigilated scoring apparatus automatically; It is characterized in that: said through the networking of Ethernet interface (204) and host computer, be adopt through wireless ethernet or the civilian power line modem of Ethernet among both a kind of mode or adopt two kinds of this modes that backup each other to realize simultaneously; Said through RS-485 interface (207) and host computer networking, be to adopt universal serial bus or wireless data transmission equipment to realize.
4. any vehicle pile examination process according to claim 1 is invigilated scoring apparatus automatically; It is characterized in that: saidly receive the onboard sensor information on the examination vehicle through the wireless communication module that is connected with RS-232 IO interface (208) or RS-485 IO interface (207), be and onboard sensor between through the wireless data transmission modulator-demodular unit that abbreviates wireless data transmission equipment as realize or all pass through the Ethernet modular converter after adopt this mode of wireless ethernet to realize again; The two can backup each other or only adopt one of them.
5. any vehicle pile examination process according to claim 1 is invigilated scoring apparatus automatically; It is characterized in that: this device is utilized as the external unit that hyperchannel input and output general-purpose interface (202) that expanded function uses connects and comprises: plug-in keyboard/touch-screen (41); Heater-driven module (40), mass storage hard disk (38), flash disk (37); Ambient temperature and humidity sensor (36); Analog quantity and switching value input-output device (35), printer output equipment (34) and/or MMC/SD storage card (33), said external equipment are selected wherein a kind, 2 kinds or multiple as required.
6. any vehicle pile examination process according to claim 1 is invigilated scoring apparatus automatically; It is characterized in that: the hyperchannel input and output general-purpose interface (202) of this device also is reserved with the interface that confession is trained and the buttons such as " beginning/end " of examination operation is connected; Through plug-in wireless data transmission equipment, can also be connected with the wireless buttons such as " beginning/end " installed on the car.
7. any vehicle pile examination process according to claim 1 is invigilated scoring apparatus automatically; It is characterized in that: this device connects the additional plug-in display (43) that is provided with and is connected plug-in keyboard/touch-screen (41) through hyperchannel input and output general-purpose interface (202) through display screen interface (203) in this locality, accepts local operator and carries out basic operations such as various corresponding setting, inquiry through plug-in keyboard/touch-screen (41).
8. a realization is invigilated the method for scoring automatically to any vehicle pile examination process, and it is characterized in that: it is to utilize the described any vehicle pile examination process of claim 1 to invigilate scoring apparatus automatically, and the machine vision that constitutes through multimedia digital processor DSP and ccd video camera also combines digitizing switch amount collector; Judgements of invigilating automatically and mark of training that the field pile of vehicle driver place driving efficiency examination is examined and examination process is that the collaborative work of hardware and the software that on embedded OS, moves through the operation built-in Linux operating system comes common realization, and the module that said application software comprises has: communication receiving/transmission device (51); Data volume collector (52); Data backup device (53), analog quantity acquiring device (54), achievement scorer (55); Audio signal sample device (56); Video signal collective device (57), switch acquisition device (58), vehicle movement information acquisition device (59); Operator's man-machine interface (60); Character Voice decoder (61), switchgear actuator (62), digital device driver (63); Data link (64) and data maintenance device (65), each module all is contained on the built-in Linux operating system;
The effect of said communication receiving/transmission device (51) is to network with host computer or the miscellaneous equipment with corresponding communications protocol;
Said digital data acquisition device (52) is connected with communication receiving/transmission device (51) with built-in Linux operating system respectively, and its effect is the physical quantity information after the collection digitizing;
Said data backup device (53) be used to preserve driver's total marks of the examination and examination process other think the information of needs reservation;
Said analog quantity acquiring device (54) is gathered analog quantity through the analog to digital conversion interface;
Said achievement scorer (55) is to carrying out Analysis And Evaluation from the information in examination vehicle and examination hall, and provides final total marks of the examination;
Said audio signal sample device (56) converts simulated audio signal to digital audio-frequency data through audio input interface;
Said video signal collective device (57) obtains digital of digital video data through video input interface and passes to vehicle movement information acquisition device (59);
Said switch acquisition device (58) is through the parallel direct read switch amount of input interface status information;
Said vehicle movement information acquisition device (59) is through obtaining the motion object information such as motion state and movement locus of examination vehicle to the analysis of digital of digital video data;
Said operator's man-machine interface (60) is accepted site operation people's instruction and is explained and carry out, and also tells this site operation people execution result simultaneously;
Said character Voice decoder (61) is accomplished and is converted the character cue to the voice suggestion signal, and drives plug-in public address system through audio output interface, makes the enough ears of tester's ability obtain the prompting or the requirement of this scoring apparatus through loudspeaker;
Said switchgear actuator (62) is directly exported switching value device drives signal through parallel output interface;
Said digital device driver (63) is connected with communication receiving/transmission device (51) with built-in Linux operating system respectively, comes to carry out communication with driven external unit through general input and output communication interface;
Said data link (64) is connected with communication receiving/transmission device (51) with built-in Linux operating system respectively, to carrying out modulation and demodulation through the data that communication network exchanges;
Said data maintenance device (65) is connected with communication receiving/transmission device (51) with built-in Linux operating system respectively, obtains initialization datas such as examination standards of grading and other regulation from host computer or mobile memory.
9. realization according to claim 8 is invigilated the method for scoring automatically to any vehicle pile examination process, and it is characterized in that: its total workflow is:
S101: system initialization, software and hardware is checked, and needed the variable of initial value to give initial value;
S102: invigilate the involved application program of scoring automatically from program storage guiding embedded OS and loading;
S103: after the application program operation, and need constantly to judge whether before examination to examine carrying out stake? Stake is examined if desired, then gets into step s104, if do not need stake to examine, directly gets into s105;
S104: beginning stake examination back gets into s105;
S105: in stake before examination or after finishing, get into and wait for and carry out following several kinds of attended operations:
Get into operating system environment,
Field earth signal self check,
The regional picture profile of examination is set,
Call in examination judgment criteria and other initialization data from host computer or movable storage device,
Video parameter is set, comprises port, brightness, contrast, colourity and saturation degree,
Speech engine is set, selects a kind of among voice IC, voice document or the sound bank;
S106: after above-mentioned work all finishes, just review and validate and withdraw from? If do not withdraw from, then return s103, if withdraw from, then get into s107;
S107: shutdown system.
10. realization according to claim 9 is invigilated the method for scoring automatically to any vehicle pile examination process, it is characterized in that:
Described s104 stake examination flow process comprises:
S201: call in initialization data necessary when taking an examination;
Does S202: inspection have examinee information? If the examination of then being labeled as is arranged and gets into S203, if do not have the training of then being labeled as and get into S205,
S203: carry out examinee's identity earlier before the examination beginning and differentiate;
Is S204: the affirmation identity authentication passed through? If through then getting into S205, otherwise return S202;
S205: begin following execution command is gathered and analyzed:
1. have or not key informations such as local beginning/end?
2. have or not beginning/key informations such as end from wireless data transmission equipment?
3. have or not " beginning/end " execution command information of obtaining through Ethernet interface from PC
4. have or not the execution command information of obtaining through NI Vision Builder for Automated Inspection such as " beginning/end "
If one of above information exists, then get into S206, if do not have, then return S202;
S206: the examination process monitoring gets into S207 after monitoring is accomplished;
S207: have or not the information of withdrawing from? If entering S208 is arranged, otherwise return S202;
S208: withdraw from stake and examine program.
11. realization according to claim 10 is invigilated the method for scoring automatically to any vehicle pile examination process, it is characterized in that: said S206: examination process monitoring program comprises:
S301: voice suggestion examination beginning;
S302: carry out an earth signal and examination hall video acquisition in real time and send host computer to;
S303: examination process analysis procedure analysis and achievement are judged, utilize the field earth signal and the video data that collect, the examination process analyzed, and the judgement of achieving the result;
S304: transmit the Analysis And Evaluation result and give host computer;
S305: confirm that whether current exercise or examination process finish or accomplish if finish or accomplish, and then get into S306, otherwise return S302;
S306: confirm it is exercise? If exercise then gets into S308, otherwise get into S307;
S307: preserve data: get into S308 after preservation total marks of the examination and other are appointed as the information that must preserve;
S308: withdraw from the examination process monitoring.
12. realization according to claim 11 is invigilated the method for scoring automatically to any vehicle pile examination process, it is characterized in that: said S303: examination process analysis procedure analysis and achievement determination flow comprise:
S401: obtain an earth signal and examination hall vedio data;
S402: driving trace and the direction of confirming vehicle;
S403: judge whether the driving trace of vehicle and direction qualified? If if qualified entering S405 defective, then gets into S404;
S404: write down a defective frame picture and a result of determination when judging;
S405: get into S406 after the result of determination with the voice suggestion examination;
S406: output Analysis And Evaluation result.
13. realization according to claim 10 is invigilated the method for scoring automatically to any vehicle pile examination process, it is characterized in that: said S203 examinee's identity identification flow comprises:
S501: obtain identity and differentiate vedio data, analyze and handle to differentiate video image from the identity of video input A interface;
S502: from motion tracking examinee head portrait;
S503: form FSCaller;
S504: output attaches the identity of FSCaller and differentiates video.
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| CN106339683A (en) * | 2016-08-27 | 2017-01-18 | 浙江维尔科技股份有限公司 | Road test traffic light identification method and device |
| CN106844257A (en) * | 2017-02-22 | 2017-06-13 | 柳州桂通科技股份有限公司 | Vehicle driver driving efficiency is taken an examination or training information processor |
| CN106844257B (en) * | 2017-02-22 | 2023-08-01 | 柳州桂通科技股份有限公司 | Device for processing driving skill examination or training information of motor vehicle driver |
| CN107221230A (en) * | 2017-07-31 | 2017-09-29 | 公安部交通管理科学研究所 | A kind of examination evaluation method of driver's subject two and system |
| CN108469877A (en) * | 2018-05-31 | 2018-08-31 | 南京佳普科技有限公司 | A kind of vertical touch-control all-in-one machine of portable mobile |
| CN112101537A (en) * | 2020-09-17 | 2020-12-18 | 广东高云半导体科技股份有限公司 | CNN accelerator and electronic device |
| CN113091744A (en) * | 2021-03-31 | 2021-07-09 | 中国汽车工程研究院股份有限公司 | Intelligent vehicle-wound pile autonomous following test evaluation method |
| CN113091744B (en) * | 2021-03-31 | 2023-11-07 | 中国汽车工程研究院股份有限公司 | Intelligent vehicle pile winding autonomous following test evaluation method |
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