CN102539955A - Automation testing system of vehicle-mounted multimedia - Google Patents
Automation testing system of vehicle-mounted multimedia Download PDFInfo
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- CN102539955A CN102539955A CN2011103962550A CN201110396255A CN102539955A CN 102539955 A CN102539955 A CN 102539955A CN 2011103962550 A CN2011103962550 A CN 2011103962550A CN 201110396255 A CN201110396255 A CN 201110396255A CN 102539955 A CN102539955 A CN 102539955A
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Abstract
The invention relates to an automation testing system of a vehicle-mounted multimedia; the automation testing system is suitable for testing the performance of the vehicle-mounted multimedia and comprises a control computer and a testing device which is electrically connected with the control computer and is controlled by the control computer; a vehicle-mounted multimedia testing program is preset in the control computer; after the vehicle-mounted multimedia testing program is activated, a testing step can be automatically carried out; the testing device receives a multi-media testing signal transmitted by the control computer, finishes the testing on the multimedia and feeds back collected multimedia data to the control computer; the control computer is used for analyzing and processing the data and outputting a test result for displaying; and the automation testing system of the vehicle-mounted multimedia provided by the invention can automatically carry out various functional tests on the multimedia, clearly displays structures, and has high automation degree in the whole testing process and is simple to operate by testing personnel.
Description
Technical field
The present invention relates to a kind of automatization test system of vehicle mounted multimedia.
Background technology
At present, vehicle mounted multimedia has become fashion, and vehicle mounted multimedia is also developing to high-performance, high-quality, multi-functional, personalized direction fast, the consumer when choosing car also with the performance of vehicle mounted multimedia as an important index of considering.Therefore vehicle mounted multimedia is when dispatching from the factory, and manufacturer must test its performance.At present, much also rest on the manual test stage for the test of vehicle mounted multimedia, last test record and examining report also need artificial treatment, and detection efficiency is low, do not catch up with the progress of enterprise's new product development and new projects exploitation far away.Even the enterprise that has has adopted automatization test system also just to be structured in fully on some professional virtual instrument platforms, perhaps also be confined to the automatic test of partial properties; This has also just caused these automatic tests to be inappropriate for the mass data task for processing, can not carry out system call and realize bottom operation, the precision of the signals collecting that can not upgrade in time according to the demand of model change.
Summary of the invention
It is high that the technical matters that the present invention will solve provides a kind of automaticity, the automatization test system of vehicle mounted multimedia simple to operate.
For solving the problems of the technologies described above; The present invention adopts following technical scheme: comprise control computer; And is electrically connected with this control computer and by the proving installation of this control computer control, reach the power-supply system that is electrically connected with control computer or proving installation, reach control box; It is characterized in that: be preset with the vehicle mounted multimedia test procedure in the said control computer, this vehicle mounted multimedia test procedure automatically performs testing procedure after activating; Said proving installation receives the test signal that control computer is sent, and accomplishes the test to vehicle mounted multimedia, and detecting information is fed back to control computer,, and the result is shown on screen or exports detecting information analysis and processing by this computing machine.
Further, said proving installation comprises the signal generator that can produce characteristic signal, and described characteristic signal comprises the vision signal of certain content in sound signal and the appointed area of assigned frequency and specific gps signal.
Further, said vehicle mounted multimedia automatic test comprises the automatic test of audio frequency automatic test, video automatic test and navigational system.
Further, said vehicle mounted multimedia automatic test also comprises the test of on-line automaticization of TFT veneer, the test of on-line automaticization of TFT screen assembly, radio reception/CD and the test of on-line automaticization of NAVI complete machine, complete machine outward appearance automatic test.
Further, the proving installation of said vehicle mounted multimedia robotization comprise the data collecting card that is used for data acquisition, 1394 cards, shielded box, load box, how with the industrial camera of digital watch and band USB interface; Wherein how to be used for electric signal measurement with digital watch, industrial camera is used for collection of video signal, and said load box is built-in with the corresponding simulating load.
Further, said shielded box is by the made box of shielded metal plate, to use the shielding of undesired signal to external world; Movable platform is arranged in the shielded box, control by calculating, realize its rotation and translation through stepper motor; Testing sample is put on the platform during test, sends the instruction of the distance of angle that product to be measured rotates with platform and stepping through computing machine.
Further, said control box is built-in with relay card and I2C adapter, and wherein the I2C adapter is electrically connected with computing machine and relay board, and each relay board is electrically connected with control corresponding equipment.
Further; Said vehicle mounted multimedia test procedure comprises following module: (1) cryptographic system module; Its major function is exactly in order to let whole test be in a kind of safer state, have only cryptographic system to start after, test macro could get into later test mode; (2) power supply is provided with system module, and it mainly acts on the normal power supply that is total system, and can make system can be in the safe condition of power supply all the time, also helps computer self-test; (3), the Main Control Tank control program module, its function is the control to Main Control Tank, realizes the robotization in the machinery control; (4), the signal generator control program module, its major function is that control-signals generator produces the signal with special characteristic; (5), data acquisition and signal analyse block, its major function is data are gathered, and signal is analyzed, like analyses such as the amplitude of signal and level, frequency spectrum, distortions; (6), the judgement and the analysis module of data, its major function is measured value and preset value are compared and analyze, and judges the performance of test product; (7), data are preserved module; The database of the finger that the test result knot of the meeting of calculating is recorded.
Further, the test function modularization of said vehicle mounted multimedia test procedure comprises following test function module: (1), TFT veneer online automatic detection; (2), TFT screen assembly online automatic detection; (3), NAVI veneer online automatic detection; (4), radio reception/CD complete machine online automatic detection; (5), NAVI complete machine online automatic detection; (6), complete machine outward appearance online automatic detection, therefore before carrying out automatic test, must select the corresponding testing program module.
The automatization test system of vehicle mounted multimedia of the present invention; Can automatically perform the various functional tests of vehicle mounted multimedia, comprise the performance test of audio & video and navigation, also comprise the test of veneer and complete machine and complete machine outward appearance; And the result clearly shown or export, and preserve the result automatically.Whole automatization test system is integrated in the rack, and personalization features is outstanding, and the tester is easy to operate; The whole test process automaticity is high, and it faces the simple to operate of tester.
Description of drawings
Fig. 1 is a general thought frame diagram of the present invention;
Fig. 2 is a TFT veneer online automatic detection block scheme;
Fig. 3 is a TFT screen assembly online automatic detection scheme frame diagram;
Fig. 4 is a NAVI veneer online automatic detection device framework arrangenent diagram;
Fig. 5 is radio reception/CD complete machine online automatic detection device framework figure;
Fig. 6 is a NAVI complete machine online automatic detection device framework arrangenent diagram;
Fig. 7 is complete machine outward appearance online automatic detection device framework figure;
Fig. 8 is a vehicle mounted multimedia automatic test program flow diagram preset in the computing machine.
Wherein the analysis and Control center in the accompanying drawing is the computing machine that is preset with vehicle mounted multimedia automatic test program; On-vehicle host in the accompanying drawing is the main frame of vehicle mounted multimedia ability audio plays, video and navigational system; CCD in the accompanying drawing is the industrial camera of shooting acquisition system band USB interface.
Embodiment
In the present embodiment,, show the general thought frame diagram that the present invention implements the vehicle mounted multimedia automatic test with reference to Fig. 1.This thinking may further comprise the steps: step 1, signal generation apparatus produces increases the signal testing sample that characteristic is arranged, and the signal testing sample is offered on-vehicle host, so that it is play.Step 2, test macro receives the multi-media signal of being play, and the multi-media signal of being play is sent to the input end of multimedia collection device from its output terminal.Step 3, the multimedia collection device is gathered the multi-media signal test sample book that its input end receives, and the multi-media signal sample that is collected is offered the analysis and Control center.Step 4, analysis and Control center utilize the feature of the multi-media signal test sample book that is produced by the multi-media signal generating means to assign to analyze the characteristic of the multi-media signal test sample book that collects, to confirm the performance index of in-vehicle multi-media system.
Fig. 2 shows the block scheme of TFT veneer online automatic detection.The static crux point voltage of the test merit of veneer such as PCBA, the separation of picture colour bar, shade of gray, brightness etc.In the present embodiment; The test of key point voltage is concrete to be realized as follows: key point voltage is selected corresponding TCH test channel through frock interface channel selection card; Carry out data acquisition, the testing software trigger voltage is gathered, and testing software judges automatically according to bound whether this voltage is up to specification.The test of picture is specific as follows: testing software instruction control flying-spot video generator starts automatic colour bar signal; Vehicle mounted multimedia reads the corresponding video signal of signal dish, and the display message of obtaining display screen by CCD is to host computer, and whether testing software automatic discriminatory analysis display image information meets the requirements.
Fig. 3 shows TFT screen assembly online automatic detection scheme frame diagram.Still can be among this embodiment according to mentioned method in the FTF veneer online automatic detection, to the colour bar separation of picture, shade of gray, brightness, and stain, bright spot, the picture automatic test that carries out such as placed in the middle; It is a specific embodiment that existing light with panel detects (containing the ILL line traffic control detects); It is embodied as: automatic cutout of instruction control equipment or closed ILL power supply; By the automatic discriminatory analysis of testing software whether the line traffic control effect is arranged then; And under the state at closed ILL, CCD obtains the display message of display screen to host computer, and whether testing software automatic discriminatory analysis panel light light color, brightness meet the requirements.
Fig. 4 shows NAVI veneer online automatic detection device framework figure.Its test function mainly comprises: the operation of the obtaining of navigation map, navigation purpose, the operation of guidance path, the operation of navigation setting item, navigation volume etc.Existing with the specific embodiment that is retrieved as to navigation map; It is embodied as: testing software sends the instruction control electric power starting through computer and offers on-vehicle host; Insertion has the SD card (band map) of test procedure to on-vehicle host; Through computer serial mode and on-vehicle host communication, send the instruction start and trigger control panel entering navigation feature interface, pass through serial mode then; Send instruction and obtain the apparent output information of screen from SD card (or mainboard navigation information output point), whether the automatic discriminatory analysis of testing software meets the requirements.
Fig. 5 shows radio reception/CD complete machine online automatic detection device framework arrangenent diagram.Its test function comprises: radio reception parameter adjustment, FM/AM stop the three-dimensional degree of separation of signal to noise ratio (S/N ratio), FM/AM standard output distortion degree, FM, CD peak power output, left and right acoustic channels equilibrium separation degree of platform adjustment, FM/AM etc. automatically.Understand its function with the specific embodiment that is adjusted at present to the radio reception parameter; Be embodied as: start computer by testing software and send instruction; Make HF signal generator configure needed signal parameter on request; Insert vehicle-mounted radio reception master machine antenna signal input part through adaptation; Send instruction each corresponding correlation parameter of vehicle-mounted radio entering radio reception is adjusted, send the immediate status (lcd screen information) of radio adjustment back to computer simultaneously, whether adjust completion by test procedure monitoring and analysis current screen information.
Fig. 6 shows NAVI complete machine online automatic detection device framework arrangenent diagram.The function that can realize comprises: navigation receiving sensitivity, system start-up time, cold start-up time, horizontal accuracy position, gyro self-conductance, navigation volume etc.For better understanding; Existing is a specific embodiment with the gyro self-conductance; Its practical implementation is following: at first send instruction through control center and make on-vehicle host get into the GPS mode state; Send the square wave level signal that instruction makes data card output 300Hz/0dB simultaneously, be linked into the SPEED line input of the output signal plug of on-vehicle host, and the manual SD that inserts of prompting snaps into on-vehicle host.Send instruction once more and start the NAVI button that the on-vehicle host screen shows the lower left corner, get into test interface, main frame will carry out self check automatically.At this moment, send instruction and obtain the satellite message information that screen shows from SD card (or from mainboard navigation information output interface point), whether normal by the guiding of testing software analysis and judgement self check 0 angle; Secondly
,Send the step motor rotating mechanism of instruction control frock; Make the on-vehicle host horizontal level rotate 90 degree; Send instruction once more and obtain the satellite message information that screen shows, judge automatically simultaneously by testing software whether the angle value and the velocity amplitude of the 90 angles guiding of rotating be normal from SD card (or from mainboard navigation information output interface point).
Fig. 7 shows complete machine outward appearance online automatic detection device framework figure.The function that can realize comprises: separations of picture colour bar, picture shade of gray, picture brightness, brightness, stain, picture between two parties, panel light, panel silk-screen, outside screw, outside paster etc.For doing convenient to understand, existing is a concrete embodiment with outside screw, and CCD obtains main frame outer surface information to host computer, the automatic discriminatory analysis of testing software, thereby the whether no marking of inspection screw.
Foregoing analysis and Control center is exactly a computing machine that is preset with vehicle mounted multimedia automatic test program in it.Fig. 8 shows the process flow diagram of the default automatic test program of computing machine.Basic procedure is following: the first, open host computer and get into SBR; Under SBR; The tester can be according to the requirement of test, the purpose of test, and select corresponding test function, test pattern by the prompting of computer; Import corresponding initialization data, like sampling rate, physical channel etc.The second, after all preliminary work is accomplished, carry out the operation button, system at first carries out self check; As whether the setting that detects initial parameter improves and correctly, whether there is non-fault in system, have equipment not connect; It is unusual to have or not program code to occur, and whether the electrical connection of each equipment is correct etc.System is wrong on inspection, calculates the original state of returning preparation again, lets the tester do corresponding inspection and revise.If the 3rd system is normal on inspection, then system gets into the official testing stage, and system will carry out following three operations simultaneously: 1, to the driving of Main Control Tank, thereby make the mechanically actuated of system realize robotization; 2, the driving of signal generator, make system by purpose and the requirement of test the drive signal generator generation have special characteristic signal; 3, driving data capture card is so that can carry out data acquisition by the purpose and the requirement of test.Four, computing machine carries out real-time processing and analysis to the data that collect; Characteristic and actual acquisition according to preset compare to data; Analyze and judgement; And the result shown and sort out, be convenient to the user underproof product is in time handled, also be convenient to the evaluation of user to the product overall performance.Five, computing machine is with analysis and process result and combine the raw data classification to deposit in the database, is convenient to later call and to the performance of products analysis.If the 6th system will proceed automatic test, then system gets into next test link automatically, if test complete then system is out of service.
In sum, its characteristics of vehicle mounted multimedia automatization test system of the present invention are:
1, diversified function.This invention has comprised multimedia veneer and complete machine, audio/video and navigation, TFT screen assembly, the on-line automaticization test of multinomial functions such as complete machine outward appearance; Realize the integrated of vehicle mounted multimedia multinomial performance test, reduced tester's labour intensity degree effectively, reduced the test duration, thereby improved the efficient of test.
2, high reliability and security.This automatization test system does not exist wrong survey, mistake to survey and test leakage when carrying out actual test, phenomenons such as not having misjudgement yet, judge by accident and fail to judge when carrying out automated analysis and handling; And if the improper operation that causes because of artificial or other reason, system will alert notice, if grave error is arranged as causing overload etc., system can also stop corresponding test by alert notice immediately.Thereby test result has high confidence level.
3, close friend's man-machine interface.Although it is powerful for vehicle mounted multimedia automatization test system of the present invention, yet when the tester adopts this vehicle mounted multimedia automatization test system to carry out actual test, do not feel complicated.This is because there is friendly man-machine interface in this system, and this system has set up complete visual testing process and described mechanism, makes the testing staff need not grasp detection just can operated and describe to programming knowledge content, testing process fully.
4, the information processing and the fault diagnosis technology of intelligence. this system can carry out real-time analysis and judgement and processing to detecting information; And computing machine system's output of being somebody's turn to do also can realize fully at length writing down each under the unattended situation time; The tester can pass through the working condition of Query Database detail knowledge testing sample in a period of time, the performance of ex-post analysis testing sample.
5, higher measuring accuracy.Manual testing result was based on a time period and provided in the past, and vehicle mounted multimedia automatization test system precision of the present invention is higher, and video can be as accurate as frame, and audio frequency can be as accurate as second etc.
6, system update easily.Because vehicle mounted multimedia automatization test system of the present invention has adopted modular design, so the renewal of system is convenient.If the new performance of customer requirements test vehicle mounted multimedia only needs corresponding subroutine is done certain modification, and does not require the modification to whole procedure.
Below the present invention is done a detailed description, the above is merely the present invention's preferred embodiment, when can not limiting practical range of the present invention, promptly allly does impartially to change and modify according to the application's scope, all should still belong in the covering scope of the present invention.
Claims (9)
1. the automatization test system of a vehicle mounted multimedia comprises control computer, and is electrically connected with this control computer and by the proving installation of this control computer control, reach the power-supply system that is electrically connected with control computer or proving installation, reach control box; It is characterized in that: be preset with the vehicle mounted multimedia test procedure in the said control computer, this vehicle mounted multimedia test procedure automatically performs testing procedure after activating; Said proving installation receives the test signal that control computer is sent, and accomplishes the test to vehicle mounted multimedia, and detecting information is fed back to control computer,, and the result is shown on screen or exports detecting information analysis and processing by this computing machine.
2. the automatization test system of vehicle mounted multimedia according to claim 1; It is characterized in that: said proving installation comprises the signal generator that can produce characteristic signal, and described characteristic signal comprises the vision signal of certain content in sound signal and the appointed area of assigned frequency and specific gps signal.
3. the automatization test system of vehicle mounted multimedia according to claim 1, it is characterized in that: said vehicle mounted multimedia automatic test comprises the automatic test of audio frequency automatic test, video automatic test and navigational system.
4. the automatization test system of vehicle mounted multimedia according to claim 3; It is characterized in that: said vehicle mounted multimedia automatic test also comprises the test of on-line automaticization of TFT veneer; The test of on-line automaticization of TFT screen assembly; Radio reception/CD and the test of on-line automaticization of NAVI complete machine, complete machine outward appearance automatic test.
5. the automatization test system of vehicle mounted multimedia according to claim 1 is characterized in that: the proving installation of said vehicle mounted multimedia robotization comprises the data collecting card that is used for data acquisition, 1394 cards, shielded box, load box, how with the industrial camera of digital watch and band USB interface; Wherein how to be used for electric signal measurement with digital watch, industrial camera is used for collection of video signal, and said load box is built-in with the corresponding simulating load.
6. the automatization test system of vehicle mounted multimedia according to claim 5, it is characterized in that: said shielded box is by the made box of shielded metal plate, with the shielding of undesired signal to external world; Movable platform is arranged in the shielded box, control by calculating, realize its rotation and translation through stepper motor; Testing sample is put on the platform during test, sends the instruction of the distance of angle that product to be measured rotates with platform and stepping through computing machine.
7. the automatization test system of vehicle mounted multimedia according to claim 1; It is characterized in that: said control box is built-in with relay card and I2C adapter; Wherein the I2C adapter is electrically connected with computing machine and relay board, and each relay board is electrically connected with control corresponding equipment.
8. the automatization test system of vehicle mounted multimedia according to claim 1; It is characterized in that: said vehicle mounted multimedia test procedure comprises following module: (1) cryptographic system module; Its major function is exactly in order to let whole test be in a kind of safer state; After having only cryptographic system to start, test macro could get into later test mode; (2) power supply is provided with system module, and it mainly acts on the normal power supply that is total system, and can make system can be in the safe condition of power supply all the time, also helps computer self-test; (3), the Main Control Tank control program module, its function is the control to Main Control Tank, realizes the robotization in the machinery control; (4), the signal generator control program module, its major function is that control-signals generator produces the signal with special characteristic; (5), data acquisition and signal analyse block, its major function is data are gathered, and signal is analyzed, like analyses such as the amplitude of signal and level, frequency spectrum, distortions; (6), the judgement and the analysis module of data, its major function is measured value and preset value are compared and analyze, and judges the performance of test product; (7), data are preserved module; The database of the finger that the test result knot of the meeting of calculating is recorded.
9. the automatization test system of vehicle mounted multimedia according to claim 1, it is characterized in that: the test function modularization of said vehicle mounted multimedia test procedure comprises following test function module: (1), TFT veneer online automatic detection; (2), TFT screen assembly online automatic detection; (3), NAVI veneer online automatic detection; (4), radio reception/CD complete machine online automatic detection; (5), NAVI complete machine online automatic detection; (6), complete machine outward appearance online automatic detection, therefore before carrying out automatic test, must select the corresponding testing program module.
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