Vehicle indirect visual field device electrical test system and method and computer readable storage medium

Abstract

The invention discloses a vehicle indirect visual field device testing system and method and a computer readable storage medium, and the system comprises a visual imaging system which is used for inputting an image for simulating the visual field for a monitor of a vehicle indirect visual field device; the electromagnetic radiation immunity system is used for transmitting an electromagnetic interference signal to a monitor of the vehicle indirect visual field device; the light intensity monitoring system is used for respectively collecting a reference light source signal and a light source signal displayed by a monitor of the vehicle indirect view field device when the monitor is interfered by the electromagnetic interference signal, and monitoring the light intensity of the vehicle indirect view field device according to the reference light source signal and the light source signal displayed by the monitor; and judging whether the display of the image by the monitor of the vehicle indirect visual field device has time delay or not. The state of the monitor of the vehicle indirect visual field device is monitored in real time through the light intensity monitoring system, test errors caused by external factors are reduced, and test result evaluation is more objective and accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent driving, and particularly to a test system, method and computer-readable storage medium for a vehicle indirect vision device. Background Art

[0002] In recent years, with the continuous improvement of automotive technology, vehicles can be equipped with indirect vision devices to provide the driver inside the vehicle with the vision of the rear, side and front areas of the vehicle that cannot be directly observed inside the vehicle. Commonly, electronic rearview mirrors are used to replace traditional optical rearview mirrors when driving on the road. Electronic rearview mirrors rely on the normal operation of technical devices such as cameras and displays. If these devices are malfunctioned or damaged due to electromagnetic interference, it will affect the driver's vision, thus reducing the driving safety. At the same time, the acquisition of the camera and the processing of information require a certain amount of time, and there may be a certain degree of delay compared with optical rearview mirrors. To ensure the sufficient stability of electronic rearview mirrors in a complex electromagnetic environment, electromagnetic interference tests need to be carried out during the product development process to ensure that the time delay of the electronic rearview mirror meets the national regulations and improve driving safety.

[0003] In the past, during the test of electronic rearview mirrors, imaging devices were used to monitor them. This monitoring method is relatively subjective. Only by observing the quality of the monitor screen transmitted by the imaging device with the human eye, it is judged whether its electromagnetic interference performance meets the standard requirements, and the delay of the display screen is not monitored. Some abnormal working conditions may be missed, resulting in test errors caused by human factors and affecting the final judgment of the electromagnetic interference test level. Summary of the Invention

[0004] The technical problem to be solved by the embodiments of the present invention is to provide a test system, method and computer-readable storage medium for a vehicle indirect vision device to effectively improve the objectivity and accuracy of test results.

[0005] To solve the above technical problem, the present invention provides a test system for a vehicle indirect vision device, including:

[0006] A visual imaging system for inputting an image for simulating the vision of the vehicle indirect vision device into the monitor of the vehicle indirect vision device;

[0007] An electromagnetic radiation immunity system for emitting an electromagnetic interference signal to the monitor of the vehicle indirect vision device;

[0008] A light intensity monitoring system for respectively collecting a reference light source signal and the light source signal displayed by the monitor of the vehicle indirect vision device when being interfered by the electromagnetic interference signal, and judging whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the reference light source signal and the light source signal displayed by the monitor.

[0009] As can be seen from the above settings, in the embodiment of the present invention, an analog signal is input into the monitor of the vehicle indirect vision device through the visual imaging system, an electromagnetic interference signal is emitted by the electromagnetic radiation immunity system, and the delay time of the picture is monitored in real time through the light intensity monitoring system, realizing the electromagnetic interference test monitoring of the monitor of the vehicle indirect vision device, solving the problem of possible functional failure of the electronic rearview mirror in the electromagnetic interference environment in the prior art, and the positioning and troubleshooting difficulties of the abnormal failure reasons during the test due to factors such as poor anti-interference performance of the video signal and poor shielding performance of the interface. By introducing the visual imaging system, the accuracy of locating the failure reason is improved, thus effectively improving the rectification efficiency of R & D designers.

[0010] Preferably, the light intensity monitoring system includes:

[0011] A light intensity monitoring probe for respectively collecting a reference light source signal and a light source signal displayed by the monitor of the vehicle indirect vision device;

[0012] An optoelectronic conversion receiving device connected to the light intensity monitoring probe for respectively converting the two light source signals collected by the light intensity monitoring probe into two electrical signals;

[0013] An oscilloscope connected to the optoelectronic conversion receiving device for receiving and displaying the two electrical signals output by the optoelectronic conversion receiving device, and judging whether there is a delay in the image displayed by the monitor of the vehicle indirect vision device according to the difference in the time domain of the two electrical signals.

[0014] Preferably, the oscilloscope judges whether there is a delay in the image displayed by the monitor of the vehicle indirect vision device according to the difference in the time domain of the two electrical signals, specifically:

[0015] Respectively obtain the first moment when the first electrical signal is input into the oscilloscope and the second moment when the second electrical signal is input into the oscilloscope;

[0016] Calculate the difference between the first moment and the second moment;

[0017] If the difference exceeds a preset threshold, it is determined that there is a delay in the image displayed by the monitor of the vehicle indirect vision device; otherwise, it is determined that there is no delay.

[0018] Preferably, the first electrical signal is obtained by collecting the light source signal emitted by the monitor by the first light intensity monitoring probe and converting it through the optoelectronic conversion receiving device, and the second electrical signal is obtained by collecting the reference light source signal by the second light intensity monitoring probe and converting it through the optoelectronic conversion receiving device.

[0019] Preferably, the visual imaging system includes:

[0020] A visual collector, which is used to collect image signals simulating the field of view of a vehicle indirect vision device;

[0021] A video signal processor, connected to the visual collector, for processing the image signals collected by the visual collector and converting them into a video stream;

[0022] A low-voltage differential signal LVDS optoelectronic transceiver, connected to the video signal processor, for transmitting the video stream processed by the video signal processor to the monitor of the vehicle indirect vision device.

[0023] Preferably, the second light intensity monitoring probe is used to collect the light source signal emitted by the reference light source point and use it as a reference light source signal; the visual collector is used to collect the light source signal emitted by the reference light source point and use it as an image signal simulating the field of view of the vehicle indirect vision device.

[0024] Preferably, the video signal processor is used to convert the light source signal emitted by the reference light source point collected by the visual collector into a video stream, and transmit it to the monitor of the vehicle indirect vision device through the first LVDS optoelectronic transceiver and the second LVDS optoelectronic transceiver. The first LVDS optoelectronic transceiver and the second LVDS optoelectronic transceiver are connected by an optical fiber.

[0025] Preferably, the monitor of the vehicle indirect vision device, the first light intensity monitoring probe, and the second LVDS optoelectronic transceiver are arranged in a semi-anechoic chamber, and the visual collector, the video signal processor, the second light intensity monitoring probe, the first LVDS optoelectronic transceiver, the reference light source point, the optoelectronic conversion receiving device, and the oscilloscope are all arranged in a control room.

[0026] Preferably, the electromagnetic radiation immunity system includes:

[0027] A signal source, which is used to generate an electromagnetic interference test signal;

[0028] A power amplifier, connected to the signal source, for amplifying the electromagnetic interference test signal generated by the signal source to a preset intensity;

[0029] A radio frequency antenna, connected to the power amplifier, for transmitting the electromagnetic interference test signal amplified by the power amplifier to the monitor of the vehicle indirect vision device.

[0030] Preferably, the signal source and the power amplifier are both arranged in the control room, and the radio frequency antenna is arranged in the semi-anechoic chamber.

[0031] The present invention also provides a method for testing a vehicle indirect vision device, which is implemented based on the vehicle indirect vision device testing system described above. The method includes the following steps:

[0032] Input an image for simulating the field of view into the monitor of the vehicle indirect vision device through a visual imaging system;

[0033] Transmit an electromagnetic interference signal to the monitor of the vehicle indirect vision device through an electromagnetic radiation immunity system;

[0034] Collect a reference light source signal and the light source signal displayed by the monitor of the vehicle indirect vision device when being interfered by the electromagnetic interference signal respectively through a light intensity monitoring system, and determine whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the reference light source signal and the light source signal displayed by the monitor.

[0035] The present invention further provides a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program runs, it controls the device where the computer-readable storage medium is located to execute the above-mentioned vehicle indirect vision device test method.

[0036] Implementing the present invention has the following beneficial effects: The present invention monitors the state of the monitor of the vehicle indirect vision device to be tested in real time through a multi-channel light intensity monitoring system, discovers abnormal states that cannot be observed subjectively in time, reduces test errors caused by other external factors, and makes the evaluation of test results more objective and accurate; adopts a visual imaging system to ensure the stability and consistency of auxiliary equipment during the test process, provides a basis for problem location, eliminates the interference of external auxiliary equipment, and shortens the time for troubleshooting. Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0038] Figure 1 It is a schematic structural diagram of a vehicle indirect vision device test system according to Embodiment 1 of the present invention.

[0039] Figure 2 It is a schematic flow diagram of a vehicle indirect vision device test method according to Embodiment 2 of the present invention. Detailed Embodiments

[0040] The following descriptions of the embodiments are with reference to the drawings, which are used to exemplify specific embodiments in which the present invention can be implemented.

[0041] Please refer to Figure 1 As shown, Embodiment 1 of the present invention provides a vehicle indirect vision device test system, including:

[0042] A visual imaging system for inputting an image simulating the field of view into a monitor of a vehicle indirect vision device;

[0043] An electromagnetic radiation immunity system for transmitting an electromagnetic interference signal to the monitor of the vehicle indirect vision device;

[0044] A light intensity monitoring system for respectively collecting a reference light source signal and a light source signal displayed by the monitor of the vehicle indirect vision device when being interfered by the electromagnetic interference signal, and judging whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the reference light source signal and the light source signal displayed by the monitor.

[0045] As can be seen from the above settings, in the embodiment of the present invention, an analog signal is input into the monitor of the vehicle indirect vision device through the visual imaging system, an electromagnetic interference signal is transmitted by the electromagnetic radiation immunity system, and the delay time of the picture is monitored in real time through the light intensity monitoring system, realizing the electromagnetic interference test and monitoring of the monitor of the vehicle indirect vision device, solving the problem of possible functional failure of the electronic rearview mirror in an electromagnetic interference environment in the prior art, and the difficulties in positioning and troubleshooting the reasons for abnormal failure during the test due to factors such as poor anti-interference performance of the video signal and poor shielding performance of the interface. By introducing the visual imaging system, the accuracy of positioning the cause of failure is improved, thereby effectively improving the rectification efficiency of R & D designers.

[0046] It can be understood that the vehicle indirect vision device usually adopts a combination of a camera and a monitor. The camera installed outside the vehicle collects images, which are processed and then displayed on the monitor located inside the vehicle. The driver observes the external environment of the vehicle through the images of the vehicle exterior displayed on the monitor to realize functions such as blind spot warning and obstacle reminder. Therefore, the electromagnetic interference test and monitoring system for the vehicle indirect vision device in the embodiment of the present invention can perform electromagnetic interference tests on the monitors of vehicle indirect vision devices including electronic rearview mirrors, reverse image systems, etc. For simplicity of description, the monitor of the electronic rearview mirror is taken as an example for illustration below.

[0047] In the embodiment of the present invention, the visual imaging system includes:

[0048] A visual collector for collecting an image signal simulating the field of view of the vehicle indirect vision device (for an electronic rearview mirror, that is, collecting a real-time image signal simulating the rear of the vehicle);

[0049] A video signal processor connected to the visual collector for processing the image signal collected by the visual collector and converting it into a video stream;

[0050] A low-voltage differential signaling (LVDS) optoelectronic transceiver, connected to the video signal processor, is used to transmit the video stream processed by the video signal processor to the monitor of the vehicle's indirect vision device, and its immunity performance reaches 200 V / m.

[0051] In the embodiment of the present invention, by adopting the above visual imaging system, a stable and clear image signal is continuously input to the monitor of the electronic rearview mirror, ensuring the stability and clarity of the image under an electromagnetic interference environment, and simulating the situation of the rear view of the vehicle observed by the driver on the monitor of the electronic rearview mirror. This solves the problem that factors such as poor anti-interference performance of the input video signal and poor interface shielding performance of the electronic rearview mirror supplier interfere with the positioning and troubleshooting of the reasons for abnormal failure during the test. The introduction of the visual imaging system makes the positioning of the failure cause more accurate and effectively improves the rectification efficiency of R & D designers.

[0052] In the embodiment of the present invention, the electromagnetic radiation immunity system includes:

[0053] A signal source for generating an electromagnetic interference test signal; the electromagnetic interference test signal is usually a sine wave signal;

[0054] A power amplifier, connected to the signal source, for amplifying the electromagnetic interference test signal generated by the signal source to a preset intensity;

[0055] A radio frequency antenna, connected to the power amplifier, for transmitting the electromagnetic interference test signal amplified by the power amplifier to the monitor of the vehicle's indirect vision device to simulate the electromagnetic interference environment in actual use and perform an electromagnetic interference test on the monitor of the vehicle's indirect vision device.

[0056] In the embodiment of the present invention, the light intensity monitoring system includes:

[0057] A light intensity monitoring probe for respectively collecting a reference light source signal and a light source signal displayed by the monitor of the vehicle's indirect vision device;

[0058] An optoelectronic conversion receiving device, connected to the light intensity monitoring probe, for respectively converting the two light source signals collected by the light intensity monitoring probe into two electrical signals for subsequent processing and analysis; considering that the light intensity monitoring system needs to determine whether there is a delay in the display screen of the monitor of the electronic rearview mirror due to the application of electromagnetic interference during the electromagnetic test, the self-signal delay of the optoelectronic conversion receiving device cannot exceed 200 ms;

[0059] An oscilloscope, connected to the optoelectronic conversion and reception device, is configured to receive and display two electrical signals output by the optoelectronic conversion and reception device, and determine whether there is a delay in the image displayed by the monitor of the vehicle indirect vision device after receiving the electromagnetic interference signal based on the difference in the time domain between the two electrical signals.

[0060] In this embodiment, two light intensity monitoring probes are provided, and the light intensity monitoring system compares and analyzes the light source signals collected by the two light intensity monitoring probes in the time domain. Specifically, as Figure 1 shown, when the system starts to work, the first light intensity monitoring probe 6 is aligned with the surface of the monitor 1 of the vehicle indirect vision device (such as an electronic rearview mirror), and the light source signal displayed by the monitor is collected. At the same time, the second light intensity monitoring probe 8 and the visual collector 5 in the visual imaging system are placed in the control room. The second light intensity monitoring probe 8 is aligned with the reference light source point 10, and the collected light source signal is used as the reference light source signal. As an example, the reference light source point 10 is specifically a light source simulator, which can continuously output light signals. The lighting time of the light signal is 1 s, and the extinguishing time is 1 s. The reference light source point 10 is powered by the power supply 11. Both the first light intensity monitoring probe and the second light intensity monitoring probe are connected to the optoelectronic conversion and reception device 7 in the control room through optical fibers, and the collected optical signals are converted into electrical signals. The converted electrical signals respectively correspond to the first channel (CH1) and the second channel (CH2) of the optoelectronic conversion and reception device 7. These two electrical signals are then connected to two measurement ports of the oscilloscope 9. It should be noted that the first light intensity monitoring probe 6 is aligned with the surface of the monitor 1 of the vehicle indirect vision device, and it is required that the light intensity monitoring probe be placed in a position where the light source signal emitted by the monitor can be received to ensure that the light source signal emitted by the monitor can be accurately collected. In actual operation, the alignment accuracy can be improved by adjusting parameters such as the angle, position, or height of the probe, so that the optical path between the light intensity monitoring probe and the monitor surface is the most direct and effective.

[0061] At the same time, the visual collector 5 also collects the light source signal emitted by the reference light source point 10 and uses it as an image signal simulating the field of view of the vehicle indirect vision device. The visual collector 5 sends the collected image signal to the video signal processor 4; the video signal processor 4 converts it into a video stream and transmits it to the monitor of the vehicle indirect vision device in the semi-anechoic chamber through the first LVDS optoelectronic transceiver 3 and the second LVDS optoelectronic transceiver 2. The first LVDS optoelectronic transceiver 3 is connected to the video signal processor 4 in the control room, and the second LVDS optoelectronic transceiver 2 is connected to the monitor 1 in the semi-anechoic chamber. The two LVDS optoelectronic transceivers transmit signals through optical fibers in the middle, and the image signal collected in the control room is transmitted to the monitor 1 in the semi-anechoic chamber.

[0062] The light intensity monitoring probe 6 of the first channel is aligned with the surface of the monitor 1 of the vehicle indirect vision device to collect the light source signal emitted by the monitor, which is actually the light source signal emitted from the reference light source point 10 collected by the vision collector 5. In this way, the electrical signals of the two channels connected to the two measurement ports of the oscilloscope are essentially the same light source signal, except that the transmission paths are different. One path (the reference light source signal) is input into the oscilloscope 9 via the second light intensity monitoring probe 8 and the photoelectric conversion and reception device 7, and the other path (the light source signal displayed on the monitor, that is, the light source signal emitted from the reference light source point 10 collected by the vision collector 5) is input into the oscilloscope 9 via the first light intensity monitoring probe 6 and the photoelectric conversion and reception device 7. In the absence of electromagnetic interference, after the light source signal emitted by the monitor is converted into an electrical signal, it should be consistent with the reference light source signal converted into an electrical signal in the time domain or within a certain threshold range, without obvious delay. However, if the anti-interference ability of the monitor does not meet the standard, in the presence of electromagnetic interference, the light source signal emitted by the monitor and the reference light source signal will exceed the threshold range in the time domain, resulting in obvious delay. By judging whether this delay exceeds the preset threshold range, the anti-electromagnetic interference ability of the monitor can be evaluated.

[0063] Therefore, the signal source 13 in the electromagnetic radiation immunity system outputs a sine wave signal, which is amplified by the power amplifier 12. After reaching the specified electric field strength, electromagnetic waves are emitted through the RF antenna to interfere with the monitor 1 in the semi-anechoic chamber, that is, the monitor 1 is in an electromagnetic interference environment at this time. Under electromagnetic interference, the oscilloscope 9 will continuously monitor the difference in the level signals of its two channels in the time domain. This difference is actually the delay time of the image displayed on the monitor after receiving the electromagnetic interference signal. Assume that the time when the light source signal displayed on the monitor is input into the oscilloscope 9 via the first light intensity monitoring probe 6 and the photoelectric conversion and reception device 7 is t1, and the time when the reference light source signal is input into the oscilloscope 9 via the second light intensity monitoring probe 8 and the photoelectric conversion and reception device 7 is t2. The oscilloscope 9 calculates the difference between the two △t = |t1 - t2|. When this difference exceeds the preset threshold (for example, 200 ms), the light intensity monitoring system will determine that the monitor of the vehicle indirect vision device has a delay due to the applied electromagnetic interference during the test. This determination method is more objective and accurate than the previous method of only judging failure by observing the display quality of the picture. Because the human eye observation may miss some abnormal working conditions, resulting in misjudgment of the test results; while the multi-channel light intensity monitoring system can continuously and accurately monitor and measure the delay time of the picture, thus avoiding this misjudgment.

[0064] Please refer to Figure 2 shown in the figure. Embodiment 2 of the present invention further provides a test method for a vehicle indirect vision device, which is implemented based on the vehicle indirect vision device test system described in Embodiment 1 of the present invention. The method includes the following steps:

[0065] Input an image for simulating the field of view into the monitor of the vehicle indirect vision device through a visual imaging system;

[0066] Transmit an electromagnetic interference signal to the monitor of the vehicle indirect vision device through an electromagnetic radiation immunity system;

[0067] Collect a reference light source signal and the light source signal displayed by the monitor of the vehicle indirect vision device when being interfered by the electromagnetic interference signal respectively through a light intensity monitoring system, and determine whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the reference light source signal and the light source signal displayed by the monitor.

[0068] Corresponding to the vehicle indirect vision device test method described in Embodiment II of the present invention, Embodiment III of the present invention provides a computer-readable storage medium, and the computer-readable storage medium includes a stored computer program; wherein, when the computer program runs, it controls the device where the computer-readable storage medium is located to execute the vehicle indirect vision device test method described in Embodiment II of the present invention.

[0069] Preferably, the computer program can be divided into one or more modules / units (such as computer program 1, computer program 2,...), the one or more modules / units are stored in the memory and executed by the processor to complete the present invention. The one or more modules / units can be a series of computer program instruction segments capable of completing specific functions, and the instruction segments are used to describe the execution process of the computer program in the device.

[0070] The processor can be a Central Processing Unit (CPU), or can also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor, or the processor can also be any conventional processor. The processor is the control center of the device and connects various parts of the device through various interfaces and lines.

[0071] The memory mainly includes a program storage area and a data storage area. Among them, the program storage area can store an operating system, application programs required for at least one function, etc., and the data storage area can store relevant data, etc. In addition, the memory can be a high-speed random access memory, or a non-volatile memory, such as a plug-in hard disk, a SmartMedia Card (SMC), a Secure Digital (SD) card, a Flash Card, etc., or the memory can also be other volatile solid-state storage devices.

[0072] It should be noted that the above device may include but is not limited to a processor and a memory, which can be understood by those skilled in the art.

[0073] Regarding the working principle and process of the above embodiments, refer to the description of Embodiment 1 of the present invention above, and details will not be repeated here.

[0074] From the above description, it can be seen that compared with the prior art, the beneficial effects of the present invention are as follows: The present invention uses a multi-channel light intensity monitoring system to monitor the status of the monitor of the indirect vision device of the vehicle under test in real time, timely discovers abnormal states that cannot be observed subjectively, reduces test errors caused by other external factors, and makes the evaluation of test results more objective and accurate; a visual imaging system is used to ensure the stability and consistency of auxiliary equipment during the test, provides a basis for problem location, eliminates the interference of external auxiliary equipment, and shortens the time for troubleshooting.

[0075] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited by this. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A vehicle indirect vision device testing system, characterized in that, Comprising: A visual imaging system for inputting an image for simulating the field of view into a monitor of a vehicle indirect vision device; An electromagnetic radiation immunity system for transmitting an electromagnetic interference signal to the monitor of the vehicle indirect vision device; A light intensity monitoring system for respectively collecting a reference light source signal and a light source signal displayed by the monitor of the vehicle indirect vision device when being interfered by the electromagnetic interference signal, and judging whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the reference light source signal and the light source signal displayed by the monitor.

2. The system according to claim 1, characterized in that, The light intensity monitoring system includes: A light intensity monitoring probe for respectively collecting a reference light source signal and a light source signal displayed by the monitor of the vehicle indirect vision device; An optoelectronic conversion receiving device connected to the light intensity monitoring probe for respectively converting the two-way light source signals collected by the light intensity monitoring probe into two-way electrical signals; An oscilloscope connected to the optoelectronic conversion receiving device for receiving and displaying the two-way electrical signals output by the optoelectronic conversion receiving device, and judging whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the difference in the time domain of the two-way electrical signals.

3. The system according to claim 2, characterized in that, The oscilloscope judges whether there is a delay in the display of the image by the monitor of the vehicle indirect vision device according to the difference in the time domain of the two-way electrical signals, specifically: Respectively obtaining a first moment when the first-way electrical signal is input into the oscilloscope and a second moment when the second-way electrical signal is input into the oscilloscope; Calculating the difference between the first moment and the second moment; If the difference exceeds a preset threshold, it is determined that there is a delay in the display of the image by the monitor of the vehicle indirect vision device; Otherwise, it is determined that there is no delay.

4. The system according to claim 3, characterized in that, The first-way electrical signal is obtained by converting the light source signal emitted by the monitor collected by the first light intensity monitoring probe through the optoelectronic conversion receiving device, and the second-way electrical signal is obtained by converting the reference light source signal collected by the second light intensity monitoring probe through the optoelectronic conversion receiving device.

5. The system according to claim 3, characterized in that, The visual imaging system includes: A visual collector for collecting an image signal for simulating the field of view of the vehicle indirect vision device; A video signal processor connected to the visual collector for processing the image signal collected by the visual collector and converting it into a video stream; A low-voltage differential signal (LVDS) optoelectronic transceiver connected to the video signal processor for transmitting the video stream processed by the video signal processor to the monitor of the vehicle indirect vision device.

6. The system according to claim 5, characterized in that, The second light intensity monitoring probe is used for collecting the light source signal emitted by the reference light source point as the reference light source signal; the visual collector is used for collecting the light source signal emitted by the reference light source point as the image signal for simulating the field of view of the vehicle indirect vision device.

7. The system according to claim 6, characterized in that, The video signal processor is used for converting the light source signal emitted by the reference light source point collected by the visual collector into a video stream, and transmitting it to the monitor of the vehicle indirect vision device through the first LVDS optoelectronic transceiver and the second LVDS optoelectronic transceiver, and the first LVDS optoelectronic transceiver and the second LVDS optoelectronic transceiver are connected by an optical fiber.

8. The system according to claim 7, characterized in that, The monitor, the first light intensity monitoring probe, and the second LVDS optoelectronic transceiver of the vehicle indirect vision device are arranged in the anechoic chamber, and the vision collector, the video signal processor, the second light intensity monitoring probe, the first LVDS optoelectronic transceiver, the reference light source point, the optoelectronic conversion receiving device, and the oscilloscope are all arranged in the control room.

9. The system according to claim 1, characterized in that, The electromagnetic radiation immunity system includes: A signal source for generating an electromagnetic interference test signal; A power amplifier connected to the signal source for amplifying the electromagnetic interference test signal generated by the signal source to a preset intensity; A radio frequency antenna connected to the power amplifier for transmitting the electromagnetic interference test signal amplified by the power amplifier to the monitor of the vehicle indirect vision device.

10. The system according to claim 9, characterized in that, The signal source and the power amplifier are both arranged in the control room, and the radio frequency antenna is arranged in the anechoic chamber.

11. A vehicle indirect vision device testing method, characterized in that, The method is implemented based on the vehicle indirect vision device electromagnetic interference test monitoring system as claimed in claim 1, and the method includes the following steps: Input an image for simulating its field of view to the monitor of the vehicle indirect vision device through the vision imaging system; Transmit an electromagnetic interference signal to the monitor of the vehicle indirect vision device through the electromagnetic radiation immunity system; Collect the reference light source signal and the light source signal displayed by the monitor of the vehicle indirect vision device when being interfered by the electromagnetic interference signal respectively through the light intensity monitoring system, and judge whether there is a delay in the monitor of the vehicle indirect vision device displaying the image according to the reference light source signal and the light source signal displayed by the monitor.

12. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a stored computer program; wherein, the computer program controls the device where the computer-readable storage medium is located to execute the vehicle indirect vision device test method as claimed in claim 11 when running.

Images