Vehicle indirect vision field device test system, method, and computer readable storage medium

Abstract

Disclosed in the present invention are a vehicle indirect vision field device test system, a method, and a computer readable storage medium. The system comprises: a vision imaging system, which is used for inputting, for a monitor of the vehicle indirect vision field device, an image for simulating the vision field of the vehicle indirect vision field device; an electromagnetic radiation immunity system, which is used for transmitting an electromagnetic interference signal to the monitor of the vehicle indirect vision field device; and a light intensity monitoring system, which is used for respectively acquiring a reference light source signal, and a light source signal displayed by the monitor of the vehicle indirect vision field device when interfered by the electromagnetic interference signal, and on the basis of the reference light source signal and the light source signal displayed by the monitor, determining whether there is a time delay in the image displayed by the monitor of the vehicle indirect vision field device. According to the present invention, the state of the monitor of the vehicle indirect vision field device is monitored in real time by means of the light intensity monitoring system, so that the experiment error caused by external factors is reduced, and the evaluation of a test result is more objective and accurate.

Description

Vehicle indirect vision device testing system, method and computer-readable storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the Patent Office of China on December 11, 2023, with application number 202311700211.1, and patent application name “A vehicle indirect field of view device test system, method and computer-readable storage medium”, and the Chinese patent application filed with the Patent Office of China on December 11, 2023, with application number 202323381847.2, and patent application name “A vehicle indirect field of view device test system”, all contents of which are incorporated by reference into this application. Technical Field

[0003] The present invention relates to the field of intelligent driving technology, and in particular to a vehicle indirect field of view device testing system, method and computer-readable storage medium. Background Art

[0004] With the continuous advancement of automotive technology in recent years, cars can now be equipped with indirect vision devices to provide drivers with a view of areas behind, to the sides, and in front of the vehicle that are not directly visible from inside. A common example is the use of electronic rearview mirrors to replace traditional optical rearview mirrors. Electronic rearview mirrors rely on the proper functioning of technical equipment such as cameras and displays. If these devices malfunction or become damaged due to electromagnetic interference, the driver's field of view will be affected, thereby reducing driving safety. Furthermore, camera data acquisition and processing take time, potentially resulting in a certain degree of delay compared to optical rearview mirrors. To ensure sufficient stability in complex electromagnetic environments, electromagnetic interference testing is performed during the product development process to ensure that the electronic rearview mirror's latency meets national regulatory requirements and improves driving safety.

[0005] Traditionally, electronic rearview mirrors have been monitored using imaging equipment during testing. This method is subjective, relying solely on visual observation of the image quality transmitted by the imaging device to determine whether the EMI performance meets standard requirements. It does not monitor the display delay, potentially overlooking abnormal operating conditions. This can lead to test errors caused by human error and affect the final EMI test level determination. Summary of the Invention

[0006] The technical problem to be solved by the embodiments of the present invention is to provide a vehicle indirect field of view device testing system, method and computer-readable storage medium to effectively improve the objectivity and accuracy of the test results.

[0007] In order to solve the above technical problems, the present invention provides a vehicle indirect field of view device testing system, comprising:

[0008] a visual imaging system for inputting an image for simulating the field of view of a monitor of an indirect field of view device of a vehicle;

[0009] an electromagnetic radiation immunity system for transmitting an electromagnetic interference signal to a monitor of the vehicle indirect vision device;

[0010] The light intensity monitoring system is used to respectively collect a reference light source signal and a light source signal displayed by the monitor of the vehicle indirect field of view device when interfered with by the electromagnetic interference signal, and to determine whether there is a delay in displaying the image on the monitor of the vehicle indirect field of view device based on the reference light source signal and the light source signal displayed by the monitor.

[0011] As can be seen from the above settings, the embodiment of the present invention implements electromagnetic interference testing and monitoring of the vehicle indirect field of view device monitor by inputting analog signals to the monitor via a visual imaging system, emitting electromagnetic interference signals via an electromagnetic radiation immunity system, and monitoring the image delay in real time via a light intensity monitoring system. This solves the problem of functional failure that may occur in electronic rearview mirrors in electromagnetic interference environments in the prior art, as well as the difficulty in locating and troubleshooting the causes of abnormal failures during testing due to factors such as poor video signal anti-interference performance and poor interface shielding performance. By introducing a visual imaging system, the accuracy of locating the cause of failure is improved, thereby effectively improving the rectification efficiency of R&D and design personnel.

[0012] Preferably, the light intensity monitoring system includes:

[0013] A light intensity monitoring probe, used to respectively collect a reference light source signal and a light source signal displayed by a monitor of an indirect field of view device of the vehicle;

[0014] A photoelectric conversion receiving device is connected to the light intensity monitoring probe and is used to convert the two light source signals collected by the light intensity monitoring probe into two electrical signals respectively;

[0015] An oscilloscope is connected to the photoelectric conversion receiving device, and is used to receive and display the two electrical signals output by the photoelectric conversion receiving device, and determine whether there is a delay in the monitor display image of the vehicle indirect field of view device based on the difference between the two electrical signals in the time domain.

[0016] Preferably, the oscilloscope determines whether there is a delay in displaying an image on the monitor of the vehicle indirect field of view device based on the difference between the two electrical signals in the time domain, specifically:

[0017] respectively acquiring a first moment when the first electrical signal is input into the oscilloscope and a second moment when the second electrical signal is input into the oscilloscope;

[0018] Calculating the difference between the first moment and the second moment;

[0019] If the difference exceeds a preset threshold, it is determined that there is a delay in displaying the image on the monitor of the vehicle indirect vision device; otherwise, it is determined that there is no delay.

[0020] Preferably, the first electrical signal is obtained by converting the light source signal emitted by the monitor collected by the first light intensity monitoring probe and the light source signal is converted by the photoelectric conversion receiving device, and the second electrical signal is obtained by converting the reference light source signal collected by the second light intensity monitoring probe and the light source signal is converted by the photoelectric conversion receiving device.

[0021] Preferably, the visual imaging system comprises:

[0022] A visual collector, used to collect image signals simulating the field of view of an indirect field of view device of a vehicle;

[0023] 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;

[0024] A low voltage differential signal (LVDS) optoelectronic transceiver is connected to the video signal processor and is used to transmit the video stream processed by the video signal processor to a monitor of the vehicle indirect vision device.

[0025] 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 the 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 field of view device.

[0026] 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 field of view 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 optical fiber.

[0027] Preferably, the monitor, the first light intensity monitoring probe and the second LVDS photoelectric transceiver of the vehicle indirect field of view device are arranged in a semi-anechoic chamber, and the visual collector, the video signal processor, the second light intensity monitoring probe, the first LVDS photoelectric transceiver, the reference light source point, the photoelectric conversion receiving device and the oscilloscope are all arranged in a control room.

[0028] Preferably, the electromagnetic radiation immunity system includes:

[0029] A signal source, used for generating an electromagnetic interference test signal;

[0030] a power amplifier connected to the signal source and configured to amplify the electromagnetic interference test signal generated by the signal source to a preset intensity;

[0031] A radio frequency antenna is connected to the power amplifier and is used to transmit the electromagnetic interference test signal amplified by the power amplifier to a monitor of the vehicle indirect field of view device.

[0032] Preferably, the signal source and the power amplifier are both arranged in a control room, and the radio frequency antenna is arranged in a semi-anechoic chamber.

[0033] The present invention also provides a vehicle indirect field of view device testing method, which is implemented based on the vehicle indirect field of view device testing system, and the method includes the following steps:

[0034] Inputting an image for simulating the field of view of the vehicle's indirect field of view device to a monitor of the vehicle's indirect field of view device through a visual imaging system;

[0035] transmitting an electromagnetic interference signal to a monitor of the vehicle indirect vision device through an electromagnetic radiation immunity system;

[0036] The light intensity monitoring system collects the reference light source signal and the light source signal displayed by the monitor of the vehicle indirect field of view device when it is interfered by the electromagnetic interference signal, and judges whether there is a delay in displaying the image on the monitor of the vehicle indirect field of view device based on the reference light source signal and the light source signal displayed by the monitor.

[0037] The present invention also provides a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program is running, it controls the device where the computer-readable storage medium is located to execute the vehicle indirect vision device testing method.

[0038] The implementation of the present invention has the following beneficial effects: the present invention monitors the monitor status of the indirect field of view device of the tested vehicle in real time through a multi-channel light intensity monitoring system, promptly discovers abnormal conditions that cannot be observed subjectively, reduces test errors caused by other external factors, and makes the test result evaluation more objective and accurate; the visual imaging system is used 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0040] FIG1 is a schematic structural diagram of a vehicle indirect vision device testing system according to an embodiment of the present invention.

[0041] FIG2 is a flow chart of a method for testing a vehicle indirect field of view device according to a second embodiment of the present invention. DETAILED DESCRIPTION

[0042] The following descriptions of the embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention may be implemented.

[0043] As shown in FIG1 , a first embodiment of the present invention provides a vehicle indirect field of view device testing system, comprising:

[0044] a visual imaging system for inputting an image for simulating the field of view of a monitor of an indirect field of view device of a vehicle;

[0045] an electromagnetic radiation immunity system for transmitting an electromagnetic interference signal to a monitor of the vehicle indirect vision device;

[0046] The light intensity monitoring system is used to respectively collect a reference light source signal and a light source signal displayed by the monitor of the vehicle indirect field of view device when interfered with by the electromagnetic interference signal, and to determine whether there is a delay in displaying the image on the monitor of the vehicle indirect field of view device based on the reference light source signal and the light source signal displayed by the monitor.

[0047] As can be seen from the above settings, the embodiment of the present invention implements electromagnetic interference testing and monitoring of the vehicle indirect field of view device monitor by inputting analog signals to the monitor via a visual imaging system, emitting electromagnetic interference signals via an electromagnetic radiation immunity system, and monitoring the image delay in real time via a light intensity monitoring system. This solves the problem of functional failure that may occur in electronic rearview mirrors in electromagnetic interference environments in the prior art, as well as the difficulty in locating and troubleshooting the causes of abnormal failures during testing due to factors such as poor video signal anti-interference performance and poor interface shielding performance. By introducing a visual imaging system, the accuracy of locating the cause of failure is improved, thereby effectively improving the rectification efficiency of R&D and design personnel.

[0048] It's understood that a vehicle's indirect field of view device typically utilizes a combination of a camera and a monitor. Images are captured by a camera mounted on the vehicle's exterior and processed and displayed on a monitor located inside the vehicle. The driver observes the vehicle's external environment through the image displayed on the monitor, enabling functions such as blind spot warnings and obstacle alerts. Therefore, the electromagnetic interference testing and monitoring system for vehicle indirect field of view devices according to embodiments of the present invention can perform electromagnetic interference testing on the monitors of vehicle indirect field of view devices, including electronic rearview mirrors and reversing imaging systems. For simplicity, the following description uses the monitor of an electronic rearview mirror as an example.

[0049] In an embodiment of the present invention, the visual imaging system includes:

[0050] A visual collector, used to collect image signals of the field of view of the simulated vehicle indirect field of view device (for electronic rearview mirrors, that is, to collect real-time image signals from behind the simulated vehicle);

[0051] 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;

[0052] A low-voltage differential signal (LVDS) optoelectronic transceiver is connected to the video signal processor and is used to transmit the video stream processed by the video signal processor to the monitor of the vehicle indirect field of view device. Its anti-interference performance reaches 200V / m.

[0053] This embodiment of the present invention utilizes the aforementioned visual imaging system to continuously input a stable, clear image signal to the electronic rearview mirror's monitor, ensuring image stability and clarity even in electromagnetic interference environments. This system simulates the rear view of the vehicle as viewed by the driver on the electronic rearview mirror's monitor. This resolves the issue of electronic rearview mirror suppliers interfering with the identification and troubleshooting of abnormal failures during testing due to factors such as poor anti-interference performance of the input video signal and poor interface shielding. The introduction of the visual imaging system allows for more accurate failure cause location, effectively improving the efficiency of R&D and design personnel in rectifying issues.

[0054] In an embodiment of the present invention, the electromagnetic radiation immunity system includes:

[0055] A signal source, used to generate an electromagnetic interference test signal; the electromagnetic interference test signal is usually a sine wave signal;

[0056] a power amplifier connected to the signal source and configured to amplify the electromagnetic interference test signal generated by the signal source to a preset intensity;

[0057] The radio frequency antenna is connected to the power amplifier and is used to transmit the electromagnetic interference test signal amplified by the power amplifier to the monitor of the vehicle indirect field of view device to simulate the electromagnetic interference environment in actual use and perform electromagnetic interference testing on the monitor of the vehicle indirect field of view device.

[0058] In an embodiment of the present invention, the light intensity monitoring system includes:

[0059] A light intensity monitoring probe, used to respectively collect a reference light source signal and a light source signal displayed by a monitor of an indirect field of view device of the vehicle;

[0060] A photoelectric conversion receiving device is connected to the light intensity monitoring probe and is used to convert 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 the monitor display of the electronic rearview mirror is delayed due to electromagnetic interference during the electromagnetic test, the signal delay of the photoelectric conversion receiving device itself cannot exceed 200ms.

[0061] An oscilloscope is connected to the photoelectric conversion receiving device, and is used to receive and display the two electrical signals output by the photoelectric conversion receiving device, and determine whether there is a delay in displaying the image after the monitor of the vehicle indirect field of view device receives the electromagnetic interference signal based on the difference between the two electrical signals in the time domain.

[0062] In this embodiment, two light intensity monitoring probes are provided. The light intensity monitoring system compares and analyzes the light source signals collected by these two light intensity monitoring probes in the time domain. Specifically, as shown in Figure 1, when the system begins operation, a first light intensity monitoring probe 6 is aligned with the surface of a monitor 1 of the vehicle's indirect field of view device (e.g., an electronic rearview mirror) to collect the light source signal displayed on the monitor. Simultaneously, a second light intensity monitoring probe 8 is placed in the control room along with the visual acquisition device 5 in the visual imaging system. The second light intensity monitoring probe 8 is aligned with a reference light source point 10 and uses the collected light source signal as the reference light source signal. For example, reference light source point 10 is a light source simulator that continuously outputs a light signal with an on-time of 1 second and an off-time of 1 second. Reference light source point 10 is powered by a power supply 11. Both the first and second light intensity monitoring probes are connected via optical fibers to an optoelectronic converter and receiver device 7 in the control room, which converts the collected light signals into electrical signals. The converted electrical signals correspond to the first channel (CH1) and the second channel (CH2) of the optoelectronic converter and receiver device 7, respectively. These two electrical signals are then connected to the two measurement ports of an 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 field of view device. This requires that the light intensity monitoring probe be positioned so that it can receive the light source signal emitted by the monitor 1 to ensure accurate acquisition of the monitor's light signal. In practice, alignment accuracy can be improved by adjusting parameters such as the probe's angle, position, or height to ensure the most direct and efficient optical path between the light intensity monitoring probe and the monitor surface.

[0063] 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 to simulate the field of view of the vehicle indirect field of view 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 field of view device in the semi-anechoic chamber via 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 via optical fiber, transmitting the image signal collected in the control room to the monitor 1 in the semi-anechoic chamber.

[0064] The light source signal emitted by the monitor, collected by the first light intensity monitoring probe 6 and aimed at the surface of the monitor 1 of the vehicle indirect field of view device, is the light source signal emitted by the monitor, i.e., the light source signal emitted by the reference light source point 10, captured by the visual acquisition device 5. Thus, the electrical signals of the two channels connected to the two measurement ports of the oscilloscope are essentially the same light source signal, but with different transmission paths. One channel (the reference light source signal) is input into the oscilloscope 9 via the second light intensity monitoring probe 8 and the photoelectric conversion and receiving device 7, while the other channel (the light source signal displayed on the monitor, i.e., the light source signal emitted by the reference light source point 10, captured by the visual acquisition device 5) is input into the oscilloscope 9 via the first light intensity monitoring probe 6 and the photoelectric conversion and receiving device 7. In the absence of electromagnetic interference, the light source signal emitted by the monitor, after being converted into an electrical signal, should be consistent with the reference light source signal in the time domain, or within a certain threshold range, without any noticeable delay. However, if the monitor's anti-interference capability is not up to standard, in the presence of electromagnetic interference, the time domain difference between the light source signal emitted by the monitor and the reference light source signal will exceed the threshold range, resulting in a noticeable delay. By determining whether the delay exceeds a preset threshold range, the anti-electromagnetic interference capability of the monitor can be evaluated.

[0065] Thus, the signal source 13 in the electromagnetic radiation immunity system outputs a sinusoidal signal. The power amplifier 12 amplifies the sinusoidal signal. After reaching a specified electric field strength, the signal is then transmitted through the radio frequency antenna as electromagnetic waves, interfering with the monitor 1 within the semi-anechoic chamber. This means that the monitor 1 is now in an electromagnetic interference environment. Under electromagnetic interference, the oscilloscope 9 monitors the time domain difference between the level signals of its two channels in real time. This difference is actually the delay in the monitor displaying the image after receiving the electromagnetic interference signal. Assuming that the light source signal displayed on the monitor is input to the oscilloscope 9 via the first light intensity monitoring probe 6 and the photoelectric conversion receiving device 7 at time t1, and the reference light source signal is input to the oscilloscope 9 via the second light intensity monitoring probe 8 and the photoelectric conversion receiving device 7 at time t2, the oscilloscope 9 calculates the difference between the two, Δt = |t1-t2|. When this difference exceeds a preset threshold (e.g., 200ms), the light intensity monitoring system determines that the monitor of the vehicle indirect field of view device has experienced a delay due to the electromagnetic interference during the test. This method is more objective and accurate than previous failure assessments based solely on image quality. Human observation can miss abnormal operating conditions, leading to misjudgments. A multi-channel light intensity monitoring system accurately monitors and measures image delays in real time, preventing these misjudgments.

[0066] Referring to FIG. 2 , a second embodiment of the present invention further provides a method for testing a vehicle indirect field of view device, which is implemented based on the vehicle indirect field of view device testing system described in the first embodiment of the present invention. The method includes the following steps:

[0067] Inputting an image for simulating the field of view of the vehicle's indirect field of view device to a monitor of the vehicle's indirect field of view device through a visual imaging system;

[0068] transmitting an electromagnetic interference signal to a monitor of the vehicle indirect vision device through an electromagnetic radiation immunity system;

[0069] The light intensity monitoring system collects the reference light source signal and the light source signal displayed by the monitor of the vehicle indirect field of view device when it is interfered by the electromagnetic interference signal, and judges whether there is a delay in displaying the image on the monitor of the vehicle indirect field of view device based on the reference light source signal and the light source signal displayed by the monitor.

[0070] Corresponding to the vehicle indirect field of view device testing method described in the aforementioned embodiment 2 of the present invention, embodiment 3 of the present invention provides a computer-readable storage medium, which includes a stored computer program; wherein, when the computer program is running, it controls the device where the computer-readable storage medium is located to execute the vehicle indirect field of view device testing method as described in embodiment 2 of the present invention.

[0071] Preferably, the computer program can be divided into one or more modules / units (e.g., computer program 1, computer program 2, ...), which are stored in the memory and executed by the processor to implement the present invention. The one or more modules / units can be a series of computer program instruction segments capable of implementing specific functions, and the instruction segments are used to describe the execution process of the computer program in the device.

[0072] The processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor, or the processor may be any conventional processor. The processor is the control center of the device, and various parts of the device are connected using various interfaces and lines.

[0073] The memory mainly includes a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application required for a function, etc., and the data storage area can store related 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 smart media card (SMC), a secure digital (SD) card, and a flash card, etc., or the memory can also be other volatile solid-state storage devices.

[0074] It should be noted that the above-mentioned device may include but is not limited to a processor and a memory, which can be understood by those skilled in the art.

[0075] For the working principle and process of the above embodiment, please refer to the description of the above embodiment of the present invention, which will not be repeated here.

[0076] From the above description, it can be seen that compared with the prior art, the beneficial effects of the present invention are: the present invention monitors the monitor status of the indirect field of view device of the tested vehicle in real time through a multi-channel light intensity monitoring system, promptly discovers abnormal conditions that cannot be observed subjectively, reduces test errors caused by other external factors, and makes the test result evaluation more objective and accurate; adopts a visual imaging system 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.

[0077] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A vehicle indirect vision device testing system, characterized in that: include: A visual imaging system for inputting an image for simulating the field of view of a monitor of an indirect field of view device of a vehicle; an electromagnetic radiation immunity system for transmitting an electromagnetic interference signal to a monitor of the vehicle indirect vision device; The light intensity monitoring system is used to respectively collect the reference light source signal and the light source signal displayed by the monitor of the vehicle indirect field of view device when it is interfered by the electromagnetic interference signal, and judge whether there is a delay in displaying the image on the monitor of the vehicle indirect field of view device based on 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 comprises: a light intensity monitoring probe for respectively collecting a reference light source signal and a light source signal displayed by a monitor of a vehicle indirect vision device; A photoelectric conversion receiving device, connected to the light intensity monitoring probe, for converting two paths of light source signals collected by the light intensity monitoring probe into two paths of electrical signals respectively; An oscilloscope is connected to the photoelectric conversion receiving device, and is used to receive and display two electrical signals output by the photoelectric conversion receiving device, and determine whether there is a delay in the monitor display image of the vehicle indirect field of view device based on the difference between the two electrical signals in the time domain.

3. The system according to claim 2, characterized in that The oscilloscope determines whether there is a delay in displaying an image on the monitor of the vehicle indirect vision device according to the difference between the two electrical signals in the time domain, specifically: Respectively obtain a first moment when the first electrical signal is input into the oscilloscope and a second moment when the second 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 displaying an image on 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 electrical signal is obtained by converting the light source signal emitted by the monitor collected by the first light intensity monitoring probe and converted by the photoelectric conversion receiving device, and the second electrical signal is obtained by converting the reference light source signal collected by the second light intensity monitoring probe and converted by the photoelectric conversion receiving device.

5. The system according to claim 3, characterized in that The visual imaging system comprises: A visual collector, used for collecting image signals simulating the field of view of an indirect field of view device of a vehicle; 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 is connected to the video signal processor and is used to transmit the video stream processed by the video signal processor to a monitor of the vehicle indirect field of view device.

6. The system according to claim 5, characterized in that 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 the 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 field of view device.

7. The system according to claim 6, characterized in that 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 field of view 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 optical fiber.

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

9. The system according to claim 1, characterized in that The electromagnetic radiation immunity system comprises: A signal source, used 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; The radio frequency antenna is connected to the power amplifier and is used to transmit the electromagnetic interference test signal amplified by the power amplifier to the monitor of the vehicle indirect field of view device.

10. The system according to claim 9, characterized in that The signal source and the power amplifier are both arranged in a control room, and the radio frequency antenna is arranged in a semi-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 according to claim 1, and the method comprises the following steps: Inputting an image for simulating the field of vision of the vehicle's indirect field of vision device to a monitor of the vehicle's indirect field of vision device through a visual imaging system; transmitting an electromagnetic interference signal to a monitor of the vehicle indirect vision device through an electromagnetic radiation immunity system; The reference light source signal and the light source signal displayed by the monitor of the vehicle indirect field of view device when interfered by the electromagnetic interference signal are respectively collected through the light intensity monitoring system, and based on the reference light source signal and the light source signal displayed by the monitor, it is determined whether there is a delay in displaying the image on the monitor of the vehicle indirect field of view device.

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

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