CN215005651U - Electromagnetic compatibility electrostatic discharge anti-interference test system - Google Patents
Electromagnetic compatibility electrostatic discharge anti-interference test system Download PDFInfo
- Publication number
- CN215005651U CN215005651U CN202120579260.4U CN202120579260U CN215005651U CN 215005651 U CN215005651 U CN 215005651U CN 202120579260 U CN202120579260 U CN 202120579260U CN 215005651 U CN215005651 U CN 215005651U
- Authority
- CN
- China
- Prior art keywords
- monitoring
- vehicle
- audio
- static electricity
- electrostatic discharge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model provides an electromagnetic compatibility electrostatic discharge anti-interference test system, which comprises an electrostatic generating device and an auxiliary monitoring device which are connected with each other; the static electricity generating device comprises static electricity disturbance rejection testing equipment and a vehicle to be tested which are connected; the auxiliary monitoring device comprises an audio-visual monitoring component, a network communication monitoring component and an electrical parameter monitoring component; the video monitoring component is used for monitoring the working state of the whole vehicle; the network communication monitoring component is used for monitoring the vehicle-mounted bus network communication of the whole vehicle; the electrical parameter monitoring component is used for monitoring the voltage and current parameters of the tested electrical device in the tested vehicle. The utility model discloses an electromagnetic compatibility electrostatic discharge immunity test system, but during real-time control, record and playback electrostatic discharge immunity test, the work phenomenon of electrical part under test, by vehicle network communication under test, by electrical part immunity in-process voltage, the electric current condition under test.
Description
Technical Field
The utility model belongs to the technical field of the electromagnetic compatibility test, especially, relate to an electromagnetic compatibility electrostatic discharge anti-interference test system.
Background
In recent years, with the continuous improvement of automobile technology, more and more electronic devices are applied to automobiles, and the electronic environment of each electric device in the running process of the automobiles is more and more complex. Static electricity is generated between a human body and an electric device or between an object and the electric device, and the static electricity is coupled into a circuit board of the electric device through a metal frame, a key gap or an electronic screen on the surface of the electric device. Causing current fluctuation in the circuit board loop and influencing the normal work of the electric device.
Based on the point, an electrostatic discharge anti-interference test is required in the development process of automobile products. The whole vehicle network communication, electric device signals, the normal working voltage of the electric device, the current and the working state of the electric device of the automobile are monitored in the test process, so that the working state of the tested vehicle can be observed and analyzed, and meanwhile, the quick positioning and confirmation of the electric device with problems can be realized.
The electromagnetic compatibility electrostatic discharge anti-interference test of the automobile comprises two steps of test implementation and test result analysis.
The existing electrostatic discharge anti-interference test monitoring system is as follows: and monitoring the working condition and appearance of the tested vehicle through the image equipment in the testing process. The monitoring cannot determine slight working condition changes in the anti-interference test process, and cannot determine the conditions which are not shown but do not meet the test requirements. For example, if the instrument flashes for 0.1 second instantaneously in the anti-interference test process of the automobile instrument, the picture transmitted by the image equipment cannot be judged; for example, in the process of performing an anti-interference test on an automobile, if a multimedia screen in the multimedia system suddenly stops working when the screen is dark, whether the multimedia host still works normally cannot be judged through the video monitoring equipment, and the judgment of a test result is influenced; in the anti-interference process, if one or 2 of the 4 speakers in the multimedia system stops working or fails, the judgment cannot be carried out only through the audio information transmitted from the audio and video system, and the evaluation on the test result can also be influenced.
After the anti-interference test is finished, the abnormal working conditions in the test process cannot be completely identified only by repeatedly checking the video and audio records aiming at the abnormal phenomenon in the test process.
After the anti-interference test is finished, the whole vehicle network communication equipment is utilized to investigate whole vehicle network communication data and locate the defective electric device; for the abnormal phenomenon that the abnormal phenomenon can be automatically recovered in the anti-interference process or after the anti-interference process is finished, the network communication can not be utilized for troubleshooting and positioning.
If the screen in the multimedia system is in a black screen state after the anti-interference process is finished, the network diagnosis equipment and the oscilloscope are connected at the moment, and the problem cause can be directly analyzed. However, if the abnormal operation of the multimedia screen in the anti-interference mode is the splash screen, the abnormal operation cannot be analyzed after the anti-interference test; in the process of the anti-interference test, part of the loudspeakers stop working, and the loudspeakers automatically recover to work after the anti-interference test is finished, and the abnormal working condition is a problem point which cannot be analyzed and judged, and which loudspeakers have problems cannot be judged.
The existing electromagnetic compatibility electrostatic discharge interference immunity test of the automobile, the communication monitoring of the whole automobile network and the electric parameter monitoring are not carried out at the same time, and the following defects exist:
(1) and judging the influence result. In the anti-interference test, network communication monitoring and voltage and current monitoring are not carried out simultaneously, and some abnormal phenomena can be omitted, so that the final anti-interference test grade judgment is influenced;
(2) there is hysteresis. And after the anti-interference test is finished, when abnormal phenomena occurring in the test process are checked and positioned, part of electric devices with problems may be missed.
(3) Increasing time costs and occupying laboratory resources. For the fault which is not automatically recovered, the problem electric device needs to be checked and positioned by utilizing network communication monitoring and oscilloscope voltage and current monitoring after the test is finished, so that the time cost is increased; for automatic recovery failures, the tests need to be re-conducted, increasing time costs and wasting laboratory resources.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an electromagnetic compatibility electrostatic discharge immunity test system utilizes static generating device and supplementary monitoring device cooperation to carry out real-time detection to whole car electric device operating condition, network communication, electrical part voltage and current data, realizes not having obvious operating mode change and not being conform to the abnormal state real time monitoring of test requirement to being surveyed the vehicle emergence in the test procedure.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
an electromagnetic compatibility electrostatic discharge anti-interference test system is used for testing the electrostatic interference condition of a tested vehicle and comprises an electrostatic generating device and an auxiliary monitoring device;
the static electricity generating device comprises a static electricity gun, a static electricity discharge generator host and a power grid, wherein the static electricity gun establishes a static electricity environment for the tested vehicle, the static electricity gun is also connected with the static electricity discharge generator host, and the static electricity discharge generator host is connected to the power grid;
the auxiliary monitoring device comprises an audio-visual monitoring component, a network communication monitoring component and an electrical parameter monitoring component;
the audio-video monitoring assembly comprises an audio-video acquisition module arranged on the tested vehicle and an audio-video playing monitoring module connected with the audio-video acquisition module, and the audio-video acquisition module acquires state information of electric devices and related loads needing to acquire signals on the tested vehicle;
the network communication monitoring component comprises a transmission module and network monitoring equipment, wherein the input end of the transmission module is connected with a network communication line of a detected vehicle, the output end of the transmission module is connected with the network monitoring equipment, and the network monitoring equipment is connected with a computer;
the electrical parameter monitoring assembly comprises an oscilloscope and a detection component for detecting electrical parameter information, the input end of the detection component is connected with a detected wire harness of a detected vehicle, and the output end of the detection component is connected with the oscilloscope.
Furthermore, the video and audio acquisition module comprises a video acquisition module and an audio acquisition module, and the video acquisition module and the audio acquisition module are connected with the video and audio playing monitoring module.
Furthermore, the transmission module comprises a first photoelectric conversion module, an optical fiber and a second photoelectric conversion module, the first photoelectric conversion module is connected with a network diagnosis interface of the detected vehicle, one end of the optical fiber is connected with the first photoelectric conversion module, the other end of the optical fiber is connected with the second photoelectric conversion module, and the output end of the second photoelectric conversion module is connected with the network communication monitoring equipment.
Further, the detection component comprises a voltage probe and a current sensor, and the voltage probe and the current sensor are respectively arranged on an observed wire harness of each working electric device in the vehicle to be detected.
Further, the observed wire harness includes, but is not limited to, a power line, a signal line.
Furthermore, the electrostatic gun can be abutted against a metal frame, a key gap and an electronic screen of the tested electric appliance, and the tested vehicle is stopped on the metal plate for the laboratory.
Compared with the prior art, an electromagnetic compatibility electrostatic discharge immunity test system have following advantage:
(1) the utility model discloses an electromagnetic compatibility electrostatic discharge immunity test system utilizes static generating device and supplementary monitoring device cooperation to carry out real-time detection to whole car electric appliance operating condition, network communication, electrical part voltage and current data, and when can real-time control, record and playback electrostatic discharge immunity test, the work phenomenon of electrical part under test, the vehicle network communication under test, the electrical part immunity in-process voltage, the electric current condition under test.
(2) The utility model discloses an electromagnetic compatibility electrostatic discharge anti-interference test system can find the unusual state of the vehicle under test that can't observe subjectively through audio-visual control assembly, network communication control assembly and the cooperation of electric parameter control assembly three, makes the test assess more accurate.
(3) The utility model discloses an electromagnetic compatibility electrostatic discharge immunity test system through diversified detection and the control of static generating device and multinomial supplementary supervisory equipment to whole car, provides the foundation for the problem electrical part location of being surveyed the vehicle.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic diagram of a testing principle of an electromagnetic compatibility electrostatic discharge immunity testing system according to an embodiment of the present invention;
fig. 2 is a test flowchart of an electromagnetic compatibility electrostatic discharge immunity test system according to an embodiment of the present invention.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1, an electromagnetic compatibility electrostatic discharge immunity test system for testing electrostatic interference of a vehicle under test includes an electrostatic generator and an auxiliary monitoring device;
the static electricity generating device comprises a static electricity gun, a static electricity discharge generator host and a power grid, wherein the static electricity gun establishes a static electricity environment for a detected vehicle to observe the influence of static electricity on the detected vehicle, the static electricity gun is connected with the static electricity discharge generator host, the static electricity gun is matched with the static electricity discharge generator, and the static electricity discharge generator host is connected with the power grid;
the static gun and the static discharge generator host are the prior art, the static gun is provided with the static discharge generator, the power grid supplies power for the static discharge generator host, the static discharge generator host is used for adjusting the voltage value conveyed to the static gun, the static gun can emit static electricity through contact with a vehicle to be tested, static electricity can also be emitted through air, and a static environment is simulated.
The auxiliary monitoring device comprises an audio-visual monitoring component, a network communication monitoring component and an electrical parameter monitoring component;
the audio-video monitoring assembly comprises an audio-video acquisition module arranged on the detected vehicle and an audio-video playing monitoring module connected with the audio-video acquisition module, and the audio-video acquisition module acquires state information of electric devices needing to acquire signals and related loads;
the video monitoring assembly is used for monitoring the working state of the whole vehicle; the electric device needing signal acquisition and the load setting thereof include but are not limited to a multimedia screen, an instrument screen, an atmosphere lamp and a wiper swinging speed; the video and audio playing monitoring module adopts but is not limited to an existing tablet or a PC.
The network communication monitoring component comprises a transmission module connected with a network communication line of a detected vehicle, the output end of the transmission module is provided with network monitoring equipment, and the network monitoring equipment is connected with a computer;
the network communication monitoring component is used for monitoring vehicle-mounted bus network communication of the whole vehicle, analyzing and storing network communication data of the whole vehicle-mounted bus, and the network monitoring equipment adopts the existing CANoe VN 1630;
the electrical parameter monitoring assembly comprises an oscilloscope and a detection component for detecting electrical parameter information, the input end of the detection component is connected with a detected wire harness of a detected vehicle, and the output end of the detection component is connected with the oscilloscope;
the electrical parameter monitoring component is used for monitoring voltage and current parameters of a tested electrical device in a tested vehicle, and the oscilloscope adopts MDO 4034C.
As shown in fig. 1, the video and audio acquisition module includes a video acquisition module and an audio acquisition module, both the video acquisition module and the audio acquisition module are connected with a video and audio playing monitoring module, and the video and audio playing monitoring module is arranged in the computer and used for monitoring and recalling recorded video and audio information in real time.
The video acquisition module is the camera, the audio acquisition module is the microphone, audio-visual broadcast supervisory equipment is prior art, can play, save and return the broadcast on the computer, all be provided with camera and microphone inside and outside the car and carry out data information acquisition to the electrical part and the load of signal that need gather.
As shown in fig. 1, the transmission module includes a first photoelectric conversion module, an optical fiber, and a second photoelectric conversion module, the first photoelectric conversion module is connected to a network diagnostic interface of a vehicle to be detected, one end of the optical fiber is connected to the first photoelectric conversion module, the other end of the optical fiber is connected to the second photoelectric conversion module, and an output end of the second photoelectric conversion module is connected to a network communication monitoring device.
The photoelectric conversion module can adopt TH-3100AB in the prior art, the network communication supervisory equipment connects second photoelectric conversion module and computer respectively, send the whole car network signal that second photoelectric conversion module transmitted to the computer.
As shown in fig. 1, the detection component includes a voltage probe and a current sensor, which are respectively disposed on an observed wire harness of each working electric device in the vehicle under test.
And voltage and current signals of the tested electric device are sent to the oscilloscope through the voltage probe and the current sensor.
As shown in fig. 1, the observed wire harness includes, but is not limited to, a power line and a signal line.
As shown in fig. 1, the electrostatic gun can abut against a metal frame, a key gap, and an electronic screen of an electric device to be tested, and the vehicle to be tested is parked on a metal plate for a laboratory.
Through the three-part monitoring system, various signal data of the whole vehicle are transmitted to a control room outside a laboratory from the laboratory for electrostatic discharge interference resistance through a wire harness in the system, the transmitted signal data are respectively processed and displayed through various display devices, and a tester and a technician can observe and analyze the signal data.
The working process is as follows:
as shown in fig. 1 and 2, preparation before the immunity test: function inspection of the vehicle to be tested, electric device controller and load inspection of the vehicle to be tested;
the arrangement of the laboratory equipment is: video acquisition equipment and audio acquisition equipment in the video and audio monitoring assembly respectively align a camera and an audio acquisition microphone to an electric device and a load of the electric device to be acquired; a first photoelectric conversion module in the network communication monitoring assembly is connected with a network diagnosis port of the detected vehicle; a voltage probe and a current sensor of the electrical parameter monitoring assembly are respectively connected with an observed wire harness of an electrical device controller for performing electrostatic discharge immunity test and observed wire harnesses of all loads of the electrical device controller;
in the testing process, the electrostatic discharge gun discharges on a metal frame, a key gap and an electronic screen of the tested electric appliance; the method comprises the following steps that a tested vehicle is placed on a metal plate in a laboratory, the tested vehicle is in an idle state (a new energy vehicle is in a Ready state), and electric devices required by testing are turned on;
the video and audio monitoring assembly transmits the collected video signals and audio signals out of the laboratory through a wire harness in the video and audio monitoring assembly; the network communication monitoring assembly connects the first photoelectric conversion module with the second photoelectric conversion module through optical fibers, and transmits the acquired whole vehicle network signal to the second photoelectric conversion module outside the laboratory through the optical fibers; the electric parameter monitoring assembly transmits the collected voltage and current signals to the control room outside the laboratory through the communication port fixedly connected with the control room inside the laboratory.
In the static discharge anti-interference test process, the laboratory is in a semi-closed state, and only testers are in the laboratory, and other testers are arranged in a control room outside the laboratory. Video and audio signals transmitted by a wire harness are processed by video and audio playing equipment in the video and audio monitoring assembly, and the signals are displayed by a player; and the network communication monitoring component connects the second photoelectric conversion module with the network communication monitoring equipment. Connecting the network communication monitoring equipment with a computer provided with software matched with the network communication monitoring equipment, and displaying the processed data; an oscilloscope in the electrical parameter monitoring assembly is connected with a communication port in the control room, and the acquired voltage and current signals of the tested electrical device are displayed.
The testers and the technicians comprehensively analyze various data displayed by the three parts of auxiliary test monitoring systems, locate problem parts and obtain a final test evaluation result.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An electromagnetic compatibility electrostatic discharge anti-interference test system is used for testing the condition that a tested vehicle is subjected to electrostatic interference, and is characterized in that: comprises a static electricity generating device and an auxiliary monitoring device;
the static electricity generating device comprises a static electricity gun, a static electricity discharge generator host and a power grid, wherein a static electricity environment is established for the tested vehicle through the static electricity gun, the static electricity gun is also connected with the static electricity discharge generator host, and the static electricity discharge generator host is connected to the power grid;
the auxiliary monitoring device comprises an audio-visual monitoring component, a network communication monitoring component and an electrical parameter monitoring component;
the audio-video monitoring assembly comprises an audio-video acquisition module arranged on the tested vehicle and an audio-video playing monitoring module connected with the audio-video acquisition module, and the audio-video acquisition module acquires state information of electric devices and related loads needing to acquire signals on the tested vehicle;
the network communication monitoring component comprises a transmission module and network monitoring equipment, wherein the input end of the transmission module is connected with a network communication line of a detected vehicle, the output end of the transmission module is connected with the network monitoring equipment, and the network monitoring equipment is connected with a computer;
the electrical parameter monitoring assembly comprises an oscilloscope and a detection component for detecting electrical parameter information, the input end of the detection component is connected with a detected wire harness of a detected vehicle, and the output end of the detection component is connected with the oscilloscope.
2. The electro-magnetic compatibility electrostatic discharge immunity test system of claim 1, wherein: the video and audio acquisition module comprises a video acquisition module and an audio acquisition module, and the video acquisition module and the audio acquisition module are connected with the video and audio playing monitoring module.
3. The electro-magnetic compatibility electrostatic discharge immunity test system of claim 1, wherein: the transmission module comprises a first photoelectric conversion module, an optical fiber and a second photoelectric conversion module, the first photoelectric conversion module is connected with a network diagnosis interface of the vehicle to be detected, one end of the optical fiber is connected with the first photoelectric conversion module, the other end of the optical fiber is connected with the second photoelectric conversion module, and the output end of the second photoelectric conversion module is connected with the network communication monitoring equipment.
4. The electro-magnetic compatibility electrostatic discharge immunity test system of claim 1, wherein: the detection component comprises a voltage probe and a current sensor, and the voltage probe and the current sensor are respectively arranged on an observed wire harness of each working electric device in the vehicle to be detected.
5. The electro-magnetic compatibility electrostatic discharge immunity test system of claim 4, wherein: the observed wire harness includes, but is not limited to, a power line, a signal line.
6. The electro-magnetic compatibility electrostatic discharge immunity test system of claim 1, wherein: the electrostatic gun can be abutted against a metal frame, a key gap and an electronic screen of the tested electric appliance, and the tested vehicle is stopped on a metal plate for a laboratory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120579260.4U CN215005651U (en) | 2021-03-22 | 2021-03-22 | Electromagnetic compatibility electrostatic discharge anti-interference test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120579260.4U CN215005651U (en) | 2021-03-22 | 2021-03-22 | Electromagnetic compatibility electrostatic discharge anti-interference test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215005651U true CN215005651U (en) | 2021-12-03 |
Family
ID=79161792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120579260.4U Active CN215005651U (en) | 2021-03-22 | 2021-03-22 | Electromagnetic compatibility electrostatic discharge anti-interference test system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215005651U (en) |
-
2021
- 2021-03-22 CN CN202120579260.4U patent/CN215005651U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102568053B (en) | Vehicle-mounted end of comprehensive vehicle fault detection system and data processing method of same | |
| CN110208615A (en) | A kind of electromagnetic compatibility Bulk current injection anti-interference test method | |
| CN109696628B (en) | Fault detection tool and fault detection method for air conditioner compressor | |
| CN113721087A (en) | Anti-interference test monitoring system and method for electromagnetic compatibility vehicle-mounted transmitter | |
| CN112782500A (en) | Automobile electromagnetic compatibility electric fast transient pulse group anti-interference test monitoring system and method | |
| US11442095B2 (en) | Cable harness test system and test method for checking cable harnesses | |
| JP5015188B2 (en) | Electrical channel self-test semiconductor test system | |
| CN210376532U (en) | Electromagnetic compatibility heavy current injection anti-interference test system | |
| CN105182941B (en) | A kind of intelligent bicycle vehicle body device detection system based on bus | |
| CN115166381A (en) | System and method for testing electromagnetic compatibility of automobile reversing image camera | |
| CN215005651U (en) | Electromagnetic compatibility electrostatic discharge anti-interference test system | |
| CN211855765U (en) | Tractor complete machine assembly quality detection device | |
| CN108873777B (en) | Ground test launch control system monitoring platform and monitoring method | |
| CN108646206B (en) | Electronic system checking method and device | |
| CN111443249A (en) | High-precision automobile load rejection test system based on network communication | |
| CN214851308U (en) | Vehicle-mounted equipment test system | |
| CN220854932U (en) | Audio and video system support and electromagnetic compatibility radiation disturbance rejection test system | |
| CN113091949B (en) | Cable state detection method, device and equipment | |
| CN115235787A (en) | Sliding table simulation test method and system for power failure of instrument panel in vehicle crash test | |
| CN211206647U (en) | Electronic static detection equipment for engine | |
| CN108918992A (en) | A kind of electronic product efficient detection device | |
| CN114489014A (en) | Bus controller troubleshooting method and system | |
| CN110895976A (en) | Dynamic card detection device and method | |
| CN109698998A (en) | A kind of fault diagnosis system and its diagnostic method of sound system | |
| CN111766847A (en) | Panoramic system control panel testing arrangement and system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |