CN102819942B - Analog automobile signal transmission and detection system and method thereof - Google Patents
Analog automobile signal transmission and detection system and method thereof Download PDFInfo
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- CN102819942B CN102819942B CN201210222767.XA CN201210222767A CN102819942B CN 102819942 B CN102819942 B CN 102819942B CN 201210222767 A CN201210222767 A CN 201210222767A CN 102819942 B CN102819942 B CN 102819942B
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Abstract
The invention provides an analog automobile signal transmission and detection system and a method thereof and solves the technical problem that it is difficult to find fault probability by present testing technologies. The analog automobile signal transmission and detection system provided by the invention comprises a computer and a program control resistor, a communication module group and a pick-up head which are respectively connected with the computer. As the program control resistor is connected with an external detected machine, the computer is used to control the program control resistor to acquire a detected analog automobile signal. Under the control of an instruction sent from the computer, the program control resistor is used to complete detection of the external detected machine. The pick-up head receives the instruction sent from the computer and monitors the detection process.
Description
Technical field
The present invention relates to vehicle signal detection field, particularly a kind of simulated automotive signal transmits the detection method of detection system.
Background technology
One tests stability to vehicle entertainment system and anti-interference to assess by vehicle entertainment system.In existing testing scheme, in order to detect stability and the anti-interference of vehicle entertainment system, typically using the signal that some simulated automotives send verifies, for example, but vehicle signal can impact vehicle entertainment system actuating signal: signals such as reversing, igniting, ACC, bluetooth communication incoming calls.For example, while reversing, with manual operation, its operating frequency and time cannot hold, and some uncommon problems often can be detected, but are difficult to find probability of malfunction.
Summary of the invention
The invention provides a kind of simulated automotive signal and transmit detection system and method, solved the technical matters that existing measuring technology is difficult to find probability of malfunction.
Detection system of the present invention adopts following technical proposals to realize: this simulated automotive signal transmits detection system, comprises computing machine, the program-controlled resistor, communication module group and the camera that are connected respectively with computing machine; Be connected with outside tested machine by described program-controlled resistor, described computer control program-controlled resistor gathers tested simulated automotive signal; Under the instruction control that described program-controlled resistor sends at computing machine, complete the detection to the tested machine in outside, the instruction that described camera receiving computer sends is monitored in real time to testing process.
Described program-controlled resistor is provided with USB/SD interface.
Described communication module group is bluetooth communication module.
Above-mentioned simulated automotive signal transmits detection system, also comprises the programmable power supply to computing machine and outside tested machine power supply.
Detection method of the present invention adopts following technical proposals to realize: transmit the detection method of detection system based on above-mentioned simulated automotive signal, comprise the following steps:
Described in the first step, initialization, simulated automotive signal transmits detection system, and sets and detect number of times;
Second step, computing machine send instruction to program-controlled resistor, and program-controlled resistor is detected ignition signal, astern signal, bluetooth incoming telephone signal and communication interface signal, and detection number of times reaches the detection number of times that the first step is set.
Preferably, the described first step comprises step Sl, and described second step comprises step S2-S4 and S6-S7:
Between Sl, communication module group, program-controlled resistor and computing machine, by port communication, opening power, disconnects program-controlled resistor, sets number of times, the operating voltage amplitude of detecting; Then start test;
S2, computing machine send instruction to program-controlled resistor, and program-controlled resistor is carried out igniting and opened and closed, thereby igniting is detected, and it is 10s that each igniting opens or closes the stand-by period;
S3, the Computer detection number of times that detects of igniting of getting it right, send instruction monitors to camera simultaneously in real time, while opening igniting at every turn, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, get back to if not and start test, if judge whether the detection number of times that igniting is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out the igniting opening and closing of opening, move backward if send instruction, each backing time interval 10S, thus astern signal is detected;
S4, the Computer detection number of times that detects of reversing of getting it right, send instruction monitors to camera simultaneously in real time, when each reversing opens or closes, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that reversing is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out the instruction of bluetooth communication incoming call if send instruction, thus the detection to bluetooth incoming telephone signal;
S6, the Computer detection number of times that bluetooth incoming telephone signal detects of getting it right, send instruction monitors to camera simultaneously in real time, each incoming call or termination incoming call, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that bluetooth communication incoming telephone signal is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out USB or the access of SD communication interface if send instruction, thereby USB or SD communication interface signal are detected;
S7, the Computer detection number of times that USB or SD communication interface signal detect of getting it right, send instruction monitors to camera simultaneously in real time, each access USB or SD, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that USB or SD port access signal is detected reaches the detection number of times that step Sl sets, if complete the detection to USB or SD communication interface signal.
Preferably, described step S7 completes after the detection of USB or SD communication interface signal, and computing machine sends instruction makes programmable power supply carry out the detection of power supply drop signal; Then carry out following steps:
S8, the Computer detection number of times that power supply drop signal detects of getting it right, send instruction monitors to camera simultaneously in real time, and judge whether the detection number of times that power supply drop signal is detected reaches the detection number of times that step Sl sets, if complete test.
The present invention has following advantage and effect with respect to prior art: the present invention is by the each instrument of processor control and program-controlled resistor, and uses camera to monitor in real time, realizes test automatically; While test, recall video and can confirm which link is out of joint, facilitate slip-stick artist's root that searches problem, the probability that can find in time problem to occur.
Accompanying drawing explanation
Figure l is system architecture diagram of the present invention;
Fig. 2 is test flow chart of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
As shown in Figure l, simulated automotive signal transmission detection system of the present invention comprises computing machine, the program-controlled resistor, programmable power supply, bluetooth communication module and the camera that are connected respectively with computing machine.Be connected with outside tested machine by program-controlled resistor, gather measured signal.Programmable power supply is given computing machine and outside tested machine power supply simultaneously.Program-controlled resistor is by DC power supply, and is provided with USB/SDPCB PIN interface.
As shown in Figure 2, testing process of the present invention comprises the following steps:
Between Sl, bluetooth communication module, program-controlled resistor, programmable power supply and computing machine, by port communication, open B+ power supply, disconnect program-controlled resistor, set number of times, the operating voltage amplitude of detecting; Then start test;
S2, computing machine send instruction to program-controlled resistor, and program-controlled resistor is carried out igniting and opened and closed, thereby ignition signal is detected;
S3, the Computer detection number of times that detects of igniting of getting it right, send instruction monitors to camera simultaneously in real time, while opening igniting at every turn, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, get back to if not and start test, if judge whether the detection number of times that igniting is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out the igniting opening and closing of opening, move backward if send instruction, each backing time interval 10S, thus astern signal is detected;
S4, the Computer detection number of times that detects of reversing of getting it right, send instruction monitors to camera simultaneously in real time, when each reversing opens or closes, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that reversing is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out the instruction of bluetooth communication incoming call if send instruction, thus the detection to bluetooth incoming telephone signal;
S6, the Computer detection number of times that bluetooth incoming telephone signal detects of getting it right, send instruction monitors to camera simultaneously in real time, each incoming call or termination incoming call, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that bluetooth communication incoming telephone signal is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out USB or the access of SD communication interface if send instruction, thereby USB or SD communication interface signal are detected;
S7, the Computer detection number of times that USB or SD communication interface signal detect of getting it right, send instruction monitors to camera simultaneously in real time, each access USB or SD, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that USB or SD port access signal is detected reaches the detection number of times that step Sl sets, make programmable power supply carry out power supply drop signal to detect if send instruction;
S8, the Computer detection number of times that power supply drop signal detects of getting it right, send instruction monitors to camera simultaneously in real time, and judge whether the detection number of times that power supply drop signal is detected reaches the detection number of times that step Sl sets, if complete test.
Above-described embodiment is preferably embodiment of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (1)
1. simulated automotive signal transmits a detection method for detection system, and described simulated automotive signal transmits program-controlled resistor, communication module group and the camera that detection system comprises computing machine, is connected respectively with computing machine; Be connected with outside tested machine by described program-controlled resistor, described computer control program-controlled resistor gathers tested simulated automotive signal; Under the instruction control that described program-controlled resistor sends at computing machine, complete the detection to the tested machine in outside, the instruction that described camera receiving computer sends is monitored in real time to testing process; It is characterized in that, described detection method comprises the following steps:
Described in the first step, initialization, simulated automotive signal transmits detection system, and sets and detect number of times;
Second step, computing machine send instruction to program-controlled resistor, and program-controlled resistor is detected ignition signal, astern signal, bluetooth incoming telephone signal and communication interface signal, and detection number of times reaches the detection number of times that the first step is set;
The described first step comprises step Sl, and described second step comprises step S2-S4 and S6-S7:
Between Sl, communication module group, program-controlled resistor and computing machine, by port communication, opening power, disconnects program-controlled resistor, sets number of times, the operating voltage amplitude of detecting; Then start test;
S2, computing machine send instruction to program-controlled resistor, and program-controlled resistor is carried out igniting and opened and closed, thereby ignition signal is detected;
S3, the Computer detection number of times that detects of igniting of getting it right, send instruction monitors to camera simultaneously in real time, while opening igniting at every turn, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, get back to if not and start test, if judge whether the detection number of times that igniting is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out the igniting opening and closing of opening, move backward if send instruction, each backing time interval 10s, thus astern signal is detected;
S4, the Computer detection number of times that detects of reversing of getting it right, send instruction monitors to camera simultaneously in real time, when each reversing opens or closes, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that reversing is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out the instruction of bluetooth communication incoming call if send instruction, thus the detection to bluetooth incoming telephone signal;
S6, the Computer detection number of times that bluetooth incoming telephone signal detects of getting it right, send instruction monitors to camera simultaneously in real time, each incoming call or termination incoming call, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that bluetooth communication incoming telephone signal is detected reaches the detection number of times that step Sl sets, make program-controlled resistor carry out USB or the access of SD communication interface if send instruction, thereby USB or SD communication interface signal are detected;
S7, the Computer detection number of times that USB or SD communication interface signal detect of getting it right, send instruction monitors to camera simultaneously in real time, each access USB or SD, whether the image transmitting from camera is consistent with the contrast of the picture of computer settings, return if not and start test, if judge whether the detection number of times that USB or SD port access signal is detected reaches the detection number of times that step Sl sets, if complete the detection to USB or SD communication interface signal.
2.detection method according to claim 1, is characterized in that, described step S7 completes after the detection of USB or SD communication interface signal, and computing machine sends instruction makes programmable power supply carry out the detection of power supply drop signal; Then carry out following steps:
S8, the Computer detection number of times that power supply drop signal detects of getting it right, send instruction monitors to camera simultaneously in real time, and judge whether the detection number of times that power supply drop signal is detected reaches the detection number of times that step Sl sets, if complete test.
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| CN104422890A (en) * | 2013-09-03 | 2015-03-18 | 深圳市众鸿科技股份有限公司 | Method and system for automatic testing of vehicle product |
| CN108566548A (en) * | 2017-12-29 | 2018-09-21 | 惠州市德赛西威汽车电子股份有限公司 | A kind of multichannel vehicle entertainment system car-backing function test system |
| CN111626094B (en) * | 2020-04-02 | 2024-01-05 | 惠州市德赛西威汽车电子股份有限公司 | Reversing automatic test system and method for vehicle-mounted entertainment system |
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| CN1744133A (en) * | 2005-09-23 | 2006-03-08 | 耿军 | Driving road-condition real-time recording method and its vehicular recording instrument |
| CN201177835Y (en) * | 2008-03-19 | 2009-01-07 | 深圳华强信息产业有限公司 | Image monitoring apparatus for automobile |
| CN201882056U (en) * | 2010-11-01 | 2011-06-29 | 刘卫东 | Portable vehicle maintenance terminal |
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| JP4863741B2 (en) * | 2006-03-22 | 2012-01-25 | タカタ株式会社 | Object detection system, drive device, vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1744133A (en) * | 2005-09-23 | 2006-03-08 | 耿军 | Driving road-condition real-time recording method and its vehicular recording instrument |
| CN201177835Y (en) * | 2008-03-19 | 2009-01-07 | 深圳华强信息产业有限公司 | Image monitoring apparatus for automobile |
| CN201882056U (en) * | 2010-11-01 | 2011-06-29 | 刘卫东 | Portable vehicle maintenance terminal |
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| Title |
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| JP特开2007-253748A 2007.10.04 |
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Address after: 516000 Guangdong province Huizhou Zhongkai high tech Zone and five West Road No. 103 Patentee after: HUIZHOU DESAY SV AUTOMOTIVE CO., LTD. Address before: 516000 Guangdong province Huizhou Zhongkai high tech Zone and five West Road No. 103 Patentee before: Huizhou Desay SV Auto. Electronics Co., Ltd. |