Shielded ground electromagnetic interference injection system and method

Abstract

The invention discloses a shielding ground electromagnetic interference injection system and a control method thereof.The system comprises tested equipment, a signal generator, an oscilloscope, a console, an isolation table and test equipment, the tested equipment is arranged on the isolation table, and the output signal positive end of the signal generator is connected with a shell A of the tested equipment through a coupling device; a probe positive end of the oscilloscope is connected with a shell B of the tested equipment, a probe negative end of the oscilloscope is connected with an output signal negative end of the signal generator, the console is in communication connection with the signal generator and the oscilloscope, and the test equipment is connected with a test interface of the tested equipment. According to the shielded ground electromagnetic interference injection system, interference signals are injected to the shielded ground, the working condition that electronic equipment is subjected to shielded ground electromagnetic interference is simulated, the interference condition on the shell of the tested equipment is detected through the oscilloscope, and whether the frequency, amplitude and waveform errors of the injected signals meet the test requirements or not is evaluated; and powerful support is provided for electromagnetic compatibility design and optimization of electronic equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic compatibility of electronic equipment, and in particular to a shielded electromagnetic interference injection system and a control method thereof. Background Art

[0002] In the field of aerospace, there are strict requirements on the power of conducted and radiated electromagnetic interference of electronic equipment on aircraft. Most of the technical approaches to achieve this are to build an electromagnetic discharge path with the system shielding ground, such as using a Y capacitor for the power supply. On the aircraft, the outer shell and the metal shells of the internal equipment are connected as the system shielding ground. The premise for the effectiveness of the above measures is that the system shielding ground has a strong electromagnetic shielding effect, that is, the potential of each point can be regarded as equal, and can be used as a reference for all potentials in electronic equipment. However, with the miniaturization of aircraft and the development of new material technology, in order to reduce weight, the metal material of the aircraft shell, that is, the shell of each device, is becoming less and less. The system shielding ground formed by it cannot be regarded as an ideal shielding ground at this time. After being subjected to external high-power electromagnetic interference, electromagnetic interference will be induced on the shielding ground. However, at this stage, all electromagnetic compatibility verification tests connect the system shell to the ideal shielding ground, which cannot simulate the effect when electromagnetic interference exists on the shielding ground, and cannot evaluate the ability of various electronic equipment on the aircraft to resist electromagnetic interference from the shielding ground. Summary of the invention

[0003] The present invention provides a shielded ground electromagnetic interference injection system and a control method thereof, which are used to solve the problem that the existing method cannot evaluate the ability of electronic equipment on an aircraft to resist shielded ground electromagnetic interference when electromagnetic interference exists on the shielded ground.

[0004] The present invention provides the following technical solutions:

[0005] In the first aspect, the present specification provides a shielded electromagnetic interference injection system, including a device under test, a signal generator, an oscilloscope, a console, an isolation table and a test device, wherein the device under test is arranged on the isolation table, the positive end of the output signal of the signal generator is connected to the housing A of the device under test through a coupling device, the positive end of the probe of the oscilloscope is connected to the housing B of the device under test, the negative end of the probe of the oscilloscope is connected to the negative end of the output signal of the signal generator, the negative end of the probe of the oscilloscope and the negative end of the output signal of the signal generator are respectively connected to a shielded ground wire, the console is communicatively connected to the signal generator and the oscilloscope, and the test device is connected to the test interface of the device under test, wherein:

[0006] The console is used to determine the electromagnetic interference signal test parameters, send the signal generation control instruction to the signal generator, receive the electromagnetic interference monitoring data sent by the oscilloscope, and adjust the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data;

[0007] The signal generator is used to receive the signal generation control instruction, simulate the electromagnetic interference source according to the signal generation control instruction, generate an electromagnetic interference signal with a specific frequency, a specific amplitude and a specific waveform, and send the electromagnetic interference signal to the device under test;

[0008] The device under test is used to receive the electromagnetic interference signal;

[0009] The oscilloscope is used to monitor the induction signal on the shell of the device under test after the device under test receives the electromagnetic interference signal, obtain electromagnetic interference monitoring data, and send the electromagnetic interference monitoring data to the console;

[0010] The isolation platform is used to isolate the device under test from the external electromagnetic environment;

[0011] The testing device is used to monitor the working state of the device under test after the device under test receives the electromagnetic interference signal to obtain working state monitoring data.

[0012] In a second aspect, the present invention provides a method for controlling a shielded electromagnetic interference injection system, comprising:

[0013] The console determines the electromagnetic interference signal test parameters, sends the signal generation control instruction to the signal generator, receives the electromagnetic interference monitoring data sent by the oscilloscope, and adjusts the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data;

[0014] The signal generator receives the signal generation control instruction, simulates the electromagnetic interference source according to the signal generation control instruction, generates an electromagnetic interference signal with a specific frequency, a specific amplitude and a specific waveform, and sends the electromagnetic interference signal to the device under test;

[0015] The device under test receives the electromagnetic interference signal;

[0016] After the device under test receives the electromagnetic interference signal, the oscilloscope monitors the induction signal on the housing of the device under test to obtain electromagnetic interference monitoring data, and sends the electromagnetic interference monitoring data to the console;

[0017] The isolation platform isolates the device under test from the external electromagnetic environment;

[0018] After the device under test receives the electromagnetic interference signal, the testing device monitors the working state of the device under test to obtain working state monitoring data.

[0019] The shielded ground electromagnetic interference injection system and control method provided in the embodiment of the present invention simulate the working condition of the electronic equipment being subjected to shielded ground electromagnetic interference by injecting interference signals on the shielded ground, detect the interference situation on the shell of the tested equipment by an oscilloscope, and evaluate whether the frequency, amplitude and waveform error of the injected signal meet the test requirements, thereby providing strong support for the electromagnetic compatibility design and optimization of the electronic equipment and solving the problem that the existing methods cannot evaluate the ability of various electronic equipment on the aircraft to resist shielded ground electromagnetic interference when electromagnetic interference exists on the shielded ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of a shielded electromagnetic interference injection system in an embodiment of the present invention.

[0021] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of this specification more clear, the technical solutions of this specification will be clearly and completely described below in combination with the specific embodiments of this specification and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this specification, not all of them. Based on the embodiments in this specification, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this specification.

[0023] As described herein, the term “including” and various variations thereof may be understood as open-ended terms meaning “including but not limited to,” and the term “one embodiment” may be understood as “at least one embodiment.”

[0024] The inventors have discovered that existing methods are unable to evaluate the ability of electronic equipment on an aircraft to resist electromagnetic interference from a shielded ground when electromagnetic interference exists on the shielded ground. In view of this, in an embodiment of the present invention, an interference signal is injected into the shielded ground to simulate the working condition of the electronic equipment being subjected to electromagnetic interference from the shielded ground, so as to achieve electromagnetic compatibility design and optimization of the electronic equipment.

[0025] Embodiment 1

[0026] Figure 1The structure diagram of the shielded electromagnetic interference injection system of an embodiment of the present application is schematically shown, including a device under test, a signal generator, an oscilloscope, a console, an isolation table and a test device, wherein the device under test is arranged on the isolation table, the positive end of the output signal of the signal generator is connected to the housing A of the device under test through a coupling device, the positive end of the probe of the oscilloscope is connected to the housing B of the device under test, the negative end of the probe of the oscilloscope is connected to the negative end of the output signal of the signal generator, the negative end of the probe of the oscilloscope and the negative end of the output signal of the signal generator are respectively connected to the shielded ground wire, the console is communicatively connected to the signal generator and the oscilloscope, and the test device is connected to the test interface of the device under test, wherein:

[0027] The console is used to determine the electromagnetic interference signal test parameters, send the signal generation control instruction to the signal generator, receive the electromagnetic interference monitoring data sent by the oscilloscope, and adjust the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data;

[0028] The signal generator is used to receive the signal generation control instruction, simulate the electromagnetic interference source according to the signal generation control instruction, generate an electromagnetic interference signal with a specific frequency, a specific amplitude and a specific waveform, and send the electromagnetic interference signal to the device under test;

[0029] The device under test is used to receive the electromagnetic interference signal;

[0030] The oscilloscope is used to monitor the induction signal on the shell of the device under test after the device under test receives the electromagnetic interference signal, obtain electromagnetic interference monitoring data, and send the electromagnetic interference monitoring data to the console;

[0031] The isolation platform is used to isolate the device under test from the external electromagnetic environment;

[0032] The testing device is used to monitor the working state of the device under test after the device under test receives the electromagnetic interference signal to obtain working state monitoring data.

[0033] Optionally, the console is specifically used to determine the frequency, amplitude and waveform of the electromagnetic interference signal according to the needs of electromagnetic interference simulation, obtain electromagnetic interference signal test parameters, obtain signal generation control instructions according to the electromagnetic interference signal test parameters, send the signal generation control instructions to the signal generator, receive electromagnetic interference monitoring data sent by the oscilloscope, and judge whether the electromagnetic interference signal generated by the signal generator meets the preset experimental requirements according to the electromagnetic interference monitoring data; if so, control the device under test to power on through the test device and record the electromagnetic interference monitoring data; if not, readjust the electromagnetic interference signal test parameters until the electromagnetic interference signal generated by the signal generator meets the preset experimental requirements.

[0034] Optionally, the console is also used to integrate test management software, record test data, and generate test reports.

[0035] Optionally, the signal generator is further used to receive the signal generation control instruction, simulate the electromagnetic interference source according to the signal generation control instruction, generate a pulse signal and a continuous wave signal, and send the pulse signal and the continuous wave signal to the device under test;

[0036] The device under test is also used to receive the pulse signal and the continuous wave signal.

[0037] Optionally, the isolation platform is specifically used to perform high-impedance isolation between the device under test and the output signal ground of the signal generator.

[0038] Optionally, the testing device is further used to monitor the operating voltage waveform of the device under test after the device under test receives the electromagnetic interference signal to obtain operating voltage waveform monitoring data.

[0039] Embodiment 2

[0040] Figure 1 The structure diagram of the shielded electromagnetic interference injection system of one embodiment of the present application is schematically shown, including: a device under test, a signal generator, an oscilloscope, a control console, an isolation table and a test device.

[0041] Specifically, the device under test is a target object in a test system that receives electromagnetic interference injection and evaluates electromagnetic compatibility.

[0042] Specifically, the signal generator can generate an electromagnetic interference signal with a specific frequency, amplitude and waveform for simulating an electromagnetic interference source. Preferably, the signal generator can generate a pulse signal, a continuous wave signal, and the like.

[0043] Specifically, the oscilloscope is used to monitor and record the induced signal on the shell of the device under test during the electromagnetic interference injection process.

[0044] Specifically, the console is the control center of the entire interference injection system, responsible for coordinating the working status of each part of the system. The console controls the output parameters of the signal generator by software or hardware to set the test parameters, including but not limited to frequency, amplitude, waveform type, etc., and receives the data of the oscilloscope for real-time processing and display. The console is preferably integrated with test management software, and can also record test data and generate test reports.

[0045] Specifically, the isolation platform is used to isolate the device under test from the external electromagnetic environment, and in particular to achieve high-impedance isolation between the device under test and the signal ground output by the signal generator.

[0046] Specifically, the test equipment is used to monitor the working state of the device under test when receiving electromagnetic interference injection in the test system. The preferred test equipment can monitor the working voltage waveform of the device under test.

[0047] In one embodiment, the connection relationship between the various parts is as follows:

[0048] The device under test is placed on an isolation table to ensure high-impedance isolation between the housing of the device under test and the signal ground output by the signal generator.

[0049] The positive terminal of the signal output by the signal generator is connected to the housing A of the device under test through a specific coupling device (such as a coupling clamp, antenna, etc.) as a signal source of the simulated electromagnetic interference signal.

[0050] The positive end of the oscilloscope probe is connected to the shell B of the device under test, and the negative end of the probe is connected to the negative end of the signal output by the signal generator, which is used to monitor and record the electromagnetic interference injection effect.

[0051] The console communicates with the signal generator via a control cable or wirelessly. The console sends control instructions to the signal generator to set test parameters to adjust the frequency, amplitude, and waveform type of the simulated electromagnetic interference signal.

[0052] The console receives monitoring data from the oscilloscope via a control cable or wirelessly.

[0053] The test equipment is connected to the test interface of the device under test through a detection cable or wirelessly, and is used to test the working status of the device under test during the test. The results can be used to evaluate the working condition of the device under test in the presence of electromagnetic interference in the shielded ground, and to evaluate the working performance and stability of the device under test in a simulated electromagnetic interference environment.

[0054] In one embodiment, the workflow of the system can be summarized as follows:

[0055] S101: Confirm that the connection of each part is completed according to the above connection relationship;

[0056] S102: The device under test is not powered on, and the console sets the signal generator to generate a signal with a specific frequency, amplitude and waveform as an electromagnetic interference signal according to the test requirements;

[0057] S103: The device under test is not powered on. The console analyzes the sampling data of the oscilloscope to confirm whether the frequency, amplitude and waveform error of the injected signal meet the test requirements. If not, the process goes to S104. If yes, the process goes to S105.

[0058] S104: Re-adjust and calibrate the system, and after adjustment, proceed to S102;

[0059] S105: The device under test is powered on, and the console records the sampling data of the oscilloscope, and the working status of the device under test during the test of the test equipment;

[0060] S106: The test is completed. The working performance and stability of the device under test in the simulated electromagnetic interference environment are evaluated based on the test results of the test equipment.

[0061] Embodiment 3

[0062] Figure 1 The structure diagram of the shielded electromagnetic interference injection system of one embodiment of the present application is schematically shown, including: a device under test, a signal generator, an oscilloscope, a control console, an isolation table and a test device. Figure 1 The present invention is a functional block diagram of a shielded electromagnetic interference injection system and method according to an embodiment of the present invention.

[0063] Specifically, the device under test is a certain type of electrical control device to be tested, which is a target object in the test system that receives electromagnetic interference injection and evaluates electromagnetic compatibility.

[0064] The signal generator model is AFG31000 series, which can generate electromagnetic interference signals with specific frequency, amplitude and waveform, and is used to simulate electromagnetic interference sources. It can generate pulse signals, continuous waves and other signals.

[0065] The oscilloscope model is DHO4000, which is used to monitor and record the induction signal on the shell of the device under test during the electromagnetic interference injection process.

[0066] The console is a desktop computer model XPS8960, which controls the output parameters of the signal generator through Ethernet communication to set test parameters, including but not limited to frequency, amplitude, waveform type, etc., and receives data from the oscilloscope through Ethernet communication for real-time processing and display. The console integrates test management software, and can also record test data and generate test reports.

[0067] The isolation platform is a wooden structure platform with a height greater than 5 cm, and is used to isolate the device under test from the external electromagnetic environment, especially to achieve high-impedance isolation between the device under test and the signal ground output by the signal generator.

[0068] The test equipment is a special test equipment for a certain type of electrical control device, which is used to monitor the working state of the electrical control device when receiving electromagnetic interference injection in the test system. The working voltage waveform of the electrical control device can be monitored.

[0069] In one embodiment, the connection relationship between the various parts is as follows:

[0070] The electrical control device is placed on a wooden structure platform to ensure high-impedance isolation between the housing of the electrical control device and the signal ground output by the signal generator.

[0071] The positive end of the signal output by the signal generator is connected to the housing A of the electrical control device through a specific coupling device (such as a coupling clamp, an antenna, etc.) as a signal source of the simulated electromagnetic interference signal.

[0072] The positive end of the oscilloscope probe is connected to the housing B of the electrical control device, and the negative end of the probe is connected to the negative end of the signal output by the signal generator, which is used to monitor and record the electromagnetic interference injection effect.

[0073] The console communicates with the signal generator via a control cable or wirelessly. The console sends control instructions to the signal generator to set test parameters to adjust the frequency (10kHz), amplitude (10V), and waveform type (continuous square wave with a duty cycle of 20%) of the simulated electromagnetic interference signal.

[0074] The console receives monitoring data from the oscilloscope via the network cable.

[0075] The dedicated test equipment is connected to the test interface of the electrical control device through the test cable, and is used to test the working status of the electrical control device during the test. The results can be used to evaluate the working condition of the electrical control device in the presence of electromagnetic interference in the shielded ground, and to evaluate the working performance and stability of the electrical control device in the simulated electromagnetic interference environment.

[0076] In one embodiment, the workflow of the system can be summarized as follows:

[0077] S101: Confirm that the connection of each part is completed according to the above connection relationship;

[0078] S102: The electrical control device is not powered on, and the control console sets the signal generator to generate a signal with a frequency (10kHz), amplitude (10V), and waveform type (continuous square wave with a duty cycle of 20%) as an electromagnetic interference signal according to the test requirements;

[0079] S103: The electrical control device is not powered on. The console analyzes the sampling data of the oscilloscope to confirm whether the frequency, amplitude and waveform error of the injected signal meet the test requirements. If not, the process goes to S104. If yes, the process goes to S105.

[0080] S104: Re-adjust and calibrate the system, and after adjustment, proceed to S102;

[0081] S105: The electrical control device is powered on, and the console records the sampling data of the oscilloscope, and the working status of the electrical control device during the test of the dedicated test equipment;

[0082] S106: After the test is completed, the working performance and stability of the electrical control device in the simulated electromagnetic interference environment are evaluated based on the test results of the special test equipment.

[0083] The above embodiment constructs a shielded ground electromagnetic interference injection system, which simulates the working condition of electronic equipment being subjected to shielded ground electromagnetic interference by injecting interference signals on the shielded ground, detects the interference situation on the shell of the tested equipment by an oscilloscope, and evaluates whether the frequency, amplitude and waveform error of the injected signal meet the test requirements, thereby providing strong support for the electromagnetic compatibility design and optimization of electronic equipment.

[0084] Embodiment 4

[0085] Based on the same technical concept, an embodiment of the present invention also provides a method for controlling a shielded electromagnetic interference injection system. Since the principle of solving the problem by the above method is similar to that of the shielded electromagnetic interference injection system, the implementation of the above method can refer to the implementation of the system, and the repeated parts will not be repeated.

[0086] An embodiment of the present invention provides a method for controlling a shielded electromagnetic interference injection system, the method being executed by a processor and comprising the following steps:

[0087] Step 1: The console determines the electromagnetic interference signal test parameters, sends the signal generation control instruction to the signal generator, receives the electromagnetic interference monitoring data sent by the oscilloscope, and adjusts the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data.

[0088] Step 2: The signal generator receives the signal generation control instruction, simulates the electromagnetic interference source according to the signal generation control instruction, generates an electromagnetic interference signal with a specific frequency, specific amplitude and specific waveform, and sends the electromagnetic interference signal to the device under test.

[0089] Step three: the device under test receives the electromagnetic interference signal.

[0090] Step 4: After the device under test receives the electromagnetic interference signal, the oscilloscope monitors the induction signal on the shell of the device under test to obtain electromagnetic interference monitoring data, and sends the electromagnetic interference monitoring data to the console.

[0091] Step 5: The isolation platform isolates the device under test from the external electromagnetic environment.

[0092] Step 6: After the device under test receives the electromagnetic interference signal, the testing device monitors the working state of the device under test to obtain working state monitoring data.

[0093] To sum up, in the embodiment of the present invention, the shielded ground electromagnetic interference injection system controls the signal generator through the console to output a specified signal as an electromagnetic interference signal, which is injected into the casing of the device under test to simulate the working condition that electromagnetic interference exists in the shielded ground of the device under test. At the same time, the interference situation on the casing of the device under test can be detected by an oscilloscope, and the frequency, amplitude and waveform error of the injected signal can be evaluated to determine whether they meet the test requirements, thereby providing strong support for the electromagnetic compatibility design and optimization of electronic equipment. Currently, all electromagnetic compatibility test methods cannot meet the above requirements.

[0094] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0095] Those skilled in the art know that, in addition to implementing the system and its various subsystems, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to implement the same functions of the system and its various subsystems, modules, and units provided by the present invention in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, etc. by performing logic programming on the method steps. Therefore, the system and its various subsystems, modules, and units provided by the present invention can be regarded as structures within hardware components or as software modules for implementing the method.

[0096] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A shielded electromagnetic interference injection system, characterized in that: The device comprises a device under test, a signal generator, an oscilloscope, a control console, an isolation platform and a test device, wherein the device under test is arranged on the isolation platform, the positive end of the output signal of the signal generator is connected to the housing A of the device under test through a coupling device, the positive end of the probe of the oscilloscope is connected to the housing B of the device under test, the negative end of the probe of the oscilloscope is connected to the negative end of the output signal of the signal generator, the negative end of the probe of the oscilloscope and the negative end of the output signal of the signal generator are respectively connected to a shielded ground wire, the control console is communicatively connected to the signal generator and the oscilloscope, and the test device is connected to the test interface of the device under test, wherein: The console is used to determine the electromagnetic interference signal test parameters, send the signal generation control instruction to the signal generator, receive the electromagnetic interference monitoring data sent by the oscilloscope, and adjust the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data; The signal generator is used to generate a control instruction according to the received signal, simulate an electromagnetic interference source, generate an electromagnetic interference signal with a specific frequency, a specific amplitude and a specific waveform, and send the electromagnetic interference signal to the device under test; The device under test is used to receive the electromagnetic interference signal; The oscilloscope is used to monitor the induction signal on the shell of the device under test after the device under test receives the electromagnetic interference signal, obtain electromagnetic interference monitoring data, and send the electromagnetic interference monitoring data to the console; The isolation platform is used to isolate the device under test from the external electromagnetic environment; The testing device is used to monitor the working state of the device under test after the device under test receives the electromagnetic interference signal to obtain working state monitoring data.

2. The system according to claim 1, characterized in that The console is specifically used to determine the frequency, amplitude and waveform of the electromagnetic interference signal according to the needs of electromagnetic interference simulation, obtain electromagnetic interference signal test parameters, obtain signal generation control instructions according to the electromagnetic interference signal test parameters, and send the signal generation control instructions to the signal generator; receive the electromagnetic interference monitoring data sent by the oscilloscope, and judge whether the electromagnetic interference signal generated by the signal generator meets the preset experimental requirements according to the electromagnetic interference monitoring data; if so, control the device under test to power on through the test device and record the electromagnetic interference monitoring data; if not, readjust the electromagnetic interference signal test parameters until the electromagnetic interference signal generated by the signal generator meets the preset experimental requirements.

3. The system according to claim 1, characterized in that The console is also used to integrate test management software, record test data, and generate test reports.

4. The system according to claim 1, characterized in that The signal generator is further used to simulate an electromagnetic interference source according to the signal generation control instruction, generate a pulse signal and a continuous wave signal, and send the pulse signal and the continuous wave signal to the device under test; The device under test is also used to receive the pulse signal and the continuous wave signal.

5. The system according to claim 1, characterized in that The isolation platform is specifically used to perform high-impedance isolation between the device under test and the output signal ground of the signal generator.

6. The system according to claim 1, characterized in that The testing device is further used to monitor the working voltage waveform of the device under test after the device under test receives the electromagnetic interference signal to obtain working voltage waveform monitoring data.

7. A method for controlling the shielded electromagnetic interference injection system according to any one of claims 1 to 6, characterized in that: include: The console determines the electromagnetic interference signal test parameters, sends the signal generation control instruction to the signal generator, receives the electromagnetic interference monitoring data sent by the oscilloscope, and adjusts the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data; The signal generator receives the signal generation control instruction, simulates the electromagnetic interference source according to the signal generation control instruction, generates an electromagnetic interference signal with a specific frequency, a specific amplitude and a specific waveform, and sends the electromagnetic interference signal to the device under test; The device under test receives the electromagnetic interference signal; After the device under test receives the electromagnetic interference signal, the oscilloscope monitors the induction signal on the housing of the device under test to obtain electromagnetic interference monitoring data, and sends the electromagnetic interference monitoring data to the console; The isolation platform isolates the device under test from the external electromagnetic environment; After the device under test receives the electromagnetic interference signal, the testing device monitors the working state of the device under test to obtain working state monitoring data.

8. The method according to claim 7, characterized in that The console determines the electromagnetic interference signal test parameters, sends the signal generation control instruction to the signal generator, receives the electromagnetic interference monitoring data sent by the oscilloscope, and adjusts the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data, specifically including: The console determines the frequency, amplitude and waveform of the electromagnetic interference signal according to the needs of electromagnetic interference simulation, obtains the electromagnetic interference signal test parameters, obtains the signal generation control instruction according to the electromagnetic interference signal test parameters, sends the signal generation control instruction to the signal generator, receives the electromagnetic interference monitoring data sent by the oscilloscope, and judges whether the electromagnetic interference signal generated by the signal generator meets the preset experimental requirements according to the electromagnetic interference monitoring data. If so, the control console controls the device under test to power on and records the electromagnetic interference monitoring data. If not, the electromagnetic interference signal test parameters are readjusted until the electromagnetic interference signal generated by the signal generator meets the preset experimental requirements.

9. The method according to claim 7, characterized in that: After the control console determines the electromagnetic interference signal test parameters, sends the signal generation control instruction to the signal generator, receives the electromagnetic interference monitoring data sent by the oscilloscope, and adjusts the electromagnetic interference signal test parameters according to the electromagnetic interference monitoring data, the method further includes: The console integrates test management software to record test data and generate test reports.

10. The method according to claim 7, characterized in that After the signal generator receives the signal generation control instruction, simulates the electromagnetic interference source according to the signal generation control instruction, generates an electromagnetic interference signal with a specific frequency, a specific amplitude and a specific waveform, and sends the electromagnetic interference signal to the device under test, the method further includes: The signal generator receives the signal generation control instruction, simulates an electromagnetic interference source according to the signal generation control instruction, generates a pulse signal and a continuous wave signal, and sends the pulse signal and the continuous wave signal to the device under test; The device under test receives the pulse signal and the continuous wave signal.

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