Immunity testing equipment, immunity testing methods, equipment and storage media

Abstract

This application discloses an immunity testing device, immunity testing method, equipment, and storage medium, belonging to the field of vehicle technology. In this device, the controller determines a first output power based on a first test frequency and sends the first test frequency and the first output power to a signal generator. The signal generator emits a first electromagnetic signal based on the first test frequency and sends the first electromagnetic signal and the first output power to a power amplifier. The power amplifier amplifies the first electromagnetic signal based on the first output power and radiates the amplified first electromagnetic signal through an antenna to a field strength output tube. The field strength output tube outputs the amplified first electromagnetic signal to the component under test, thereby determining the immunity performance of the component under test. Therefore, the device provided in this application can test the immunity of the component under test without the need for a dedicated laboratory, greatly reducing testing costs.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and in particular to an immunity testing device, immunity testing method, equipment, and storage medium. Background Technology

[0002] As vehicles become increasingly electronic, electrified, and intelligent, the electromagnetic environment they face becomes more complex. At the same time, with the continuous improvement of electrification and intelligence, the requirements for electromagnetic immunity of vehicles are also increasing. Therefore, it is necessary to conduct immunity tests on the components in the vehicle to determine whether there are any immunity problems.

[0003] The relevant technology involves conducting vehicle-wide immunity testing, which requires building a dedicated laboratory and is therefore costly. Summary of the Invention

[0004] This application provides an immunity testing device, an immunity testing method, an apparatus, and a storage medium, which can reduce testing costs. The technical solution is as follows:

[0005] On the one hand, an immunity testing device is provided, the device comprising: a field strength output tube, a power amplifier, a controller, a signal generator, and an antenna;

[0006] The two ends of the signal generator are electrically connected to the first end of the controller and the first end of the power amplifier, respectively, and the second end of the power amplifier is electrically connected to the antenna;

[0007] The field strength output tube is located at the second end of the power amplifier and is used to be in close contact with the component under test.

[0008] The controller is configured to acquire a first test frequency, determine a first output power corresponding to the first test frequency based on a pre-stored correspondence between test frequencies and output power, and send the first test frequency and the first output power to the signal generator.

[0009] The signal generator is used to emit a first electromagnetic signal based on the first test frequency, and send the first electromagnetic signal and the first output power to the power amplifier;

[0010] The power amplifier is used to amplify the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength; and to radiate the amplified first electromagnetic signal to the field strength output tube through the antenna.

[0011] The field strength output tube is used to output the amplified first electromagnetic signal to the component under test.

[0012] In one possible implementation, the controller is further configured to acquire a test frequency range and a test step, determine at least one second test frequency based on the test frequency range and the test step, determine a second output power corresponding to each second test frequency based on the correspondence between the test frequency and the output power, and send the at least one second test frequency and its corresponding second output power to the signal generator.

[0013] The signal generator is also used to emit a second electromagnetic signal based on the at least one second test frequency, and send the second electromagnetic signal and at least one second output power to the power amplifier;

[0014] The power amplifier is further configured to amplify the second electromagnetic signal based on the at least one second output power, so that the field strength corresponding to the amplified second electromagnetic signal is equal to the second test field strength; and radiate the amplified second electromagnetic signal to the field strength output tube through the antenna;

[0015] The field strength output tube is also used to output the amplified second electromagnetic signal to the component under test.

[0016] In another possible implementation, the second end of the controller is used for electrical connection with the field strength probe;

[0017] The controller is also used to acquire the test frequency and send the test frequency to the signal generator;

[0018] The signal generator is also used to emit a third electromagnetic signal based on the test frequency and send the third electromagnetic signal to the power amplifier;

[0019] The power amplifier is also used to amplify the third electromagnetic signal based on the current output power, and radiate the amplified third electromagnetic signal to the field strength output tube through the antenna;

[0020] The field strength output tube is also used to output the amplified third electromagnetic signal in the dark room;

[0021] The field strength probe is used to detect the field strength corresponding to the amplified third electromagnetic signal and send the detected field strength to the controller.

[0022] The controller is further configured to, when the field strength detected by the field strength probe is equal to the test field strength, associate and store the test frequency with the output power to obtain the correspondence between the test frequency and the output power; and when the field strength detected by the field strength probe is not equal to the test field strength, adjust the output power until the field strength detected by the field strength probe is equal to the test field strength.

[0023] In another possible implementation, the device further includes an electromagnetic shielding layer;

[0024] The electromagnetic shielding layer is disposed on the outer surface of the field strength output tube to prevent leakage of the amplified first electromagnetic signal;

[0025] The first handle is installed on the electromagnetic shielding layer.

[0026] In another possible implementation, a frequency selection button is provided on the controller;

[0027] The frequency selection button is used to select a fixed frequency for testing.

[0028] In another possible implementation, the device further includes: a power supply;

[0029] The first end of the power supply is electrically connected to the other end of the controller, and the other end of the power supply is provided with a second handle.

[0030] On the other hand, an immunity test method is provided, the method comprising:

[0031] The controller acquires a first test frequency, determines a first output power corresponding to the first test frequency based on a pre-stored correspondence between test frequencies and output power, and sends the first test frequency and the first output power to the signal generator.

[0032] The signal generator emits a first electromagnetic signal based on the first test frequency, and sends the first electromagnetic signal and the first output power to the power amplifier;

[0033] The power amplifier amplifies the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength; the amplified first electromagnetic signal is radiated to the field strength output tube through the antenna.

[0034] The field strength output tube outputs the amplified first electromagnetic signal to the component under test.

[0035] In one possible implementation, the method further includes:

[0036] The controller acquires the test frequency range and test step, and determines at least one second test frequency based on the test frequency range and the test step; it determines the second output power corresponding to each second test frequency based on the correspondence between the test frequency and the output power; and it sends the at least one second test frequency and its corresponding second output power to the signal generator.

[0037] The signal generator emits a second electromagnetic signal based on the at least one second test frequency, and sends the second electromagnetic signal and at least one second output power to the power amplifier;

[0038] The power amplifier amplifies the second electromagnetic signal based on the at least one second output power, so that the field strength corresponding to the amplified second electromagnetic signal is equal to the second test field strength; the amplified second electromagnetic signal is radiated to the field strength output tube through the antenna.

[0039] The field strength output tube outputs the amplified second electromagnetic signal to the component under test.

[0040] In another possible implementation, the method further includes:

[0041] The controller acquires the test frequency and sends the test frequency to the signal generator;

[0042] The signal generator emits a third electromagnetic signal based on the test frequency and sends the third electromagnetic signal to the power amplifier;

[0043] The power amplifier amplifies the third electromagnetic signal based on the current output power, and radiates the amplified third electromagnetic signal to the field strength output tube through the antenna;

[0044] The field strength output tube outputs the amplified third electromagnetic signal in the dark room;

[0045] The field strength probe detects the field strength corresponding to the amplified third electromagnetic signal and sends the detected field strength to the controller;

[0046] When the field strength detected by the field strength probe is equal to the test field strength, the controller associates and stores the test frequency with the output power to obtain the correspondence between the test frequency and the output power; when the field strength detected by the field strength probe is not equal to the test field strength, the controller adjusts the output power until the field strength detected by the field strength probe is equal to the test field strength.

[0047] On the other hand, an electronic device is provided, comprising a processor and a memory, wherein the memory stores at least one piece of program code, which is loaded and executed by the processor to implement the immunity test method described above for the controller, signal generator, or power amplifier.

[0048] On the other hand, a computer-readable storage medium is provided, wherein at least one piece of program code is stored therein, the at least one piece of program code being loaded and executed by a processor to implement the immunity test method described in any of the preceding claims.

[0049] On the other hand, a computer program product is provided, wherein at least one piece of program code is stored in the computer program product, the at least one piece of program code being loaded and executed by a processor to implement the immunity test method described in any of the above claims.

[0050] This application provides an immunity testing device. In this device, a controller determines a first output power based on a first test frequency and sends the first test frequency and the first output power to a signal generator. The signal generator emits a first electromagnetic signal based on the first test frequency and sends the first electromagnetic signal and the first output power to a power amplifier. The power amplifier amplifies the first electromagnetic signal based on the first output power and radiates the amplified first electromagnetic signal through an antenna to a field strength output tube. The field strength output tube outputs the amplified first electromagnetic signal to the component under test, thereby determining the immunity performance of the component under test. Therefore, the device provided in this application can test the immunity of the component under test without the need for a dedicated laboratory, significantly reducing testing costs.

[0051] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this disclosure. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the structure of an immunity testing device provided in an embodiment of this application;

[0053] Figure 2 This is a flowchart of an immunity test method provided in an embodiment of this application;

[0054] Figure 3 This is a structural block diagram of a controller provided in an embodiment of this application.

[0055] The reference numerals in the attached figures represent:

[0056] 10-Field strength output transistor, 11-Power amplifier, 12-Controller, 13-Signal generator, 14-Antenna,

[0057] 15-Electromagnetic shielding layer, 16-First handle, 17-Frequency selection button, 18-Power supply, 19-Second handle. Detailed Implementation

[0058] To make the technical solution and advantages of this application clearer, the embodiments of this application will be described in further detail below.

[0059] The terms "first," "second," "third," and "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0060] It should be noted that all information (including but not limited to user device information, user personal information, etc.), data (including but not limited to data used for analysis, stored data, displayed data, etc.), and signals involved in this application have been authorized by the user or fully authorized by all parties, and the collection, use, and processing of related data must comply with the relevant laws, regulations, and standards of the relevant countries and regions. For example, the test frequency, output power, electromagnetic signals, etc. involved in this application were all obtained with full authorization.

[0061] Figure 1 This is a schematic diagram of an immunity testing device provided in an embodiment of this application. See also... Figure 1 The device includes: field strength output tube 10, power amplifier 11, controller 12, signal generator 13 and antenna 14;

[0062] The two ends of the signal generator 13 are electrically connected to the first end of the controller 12 and the first end of the power amplifier 11, respectively, and the second end of the power amplifier 11 is electrically connected to the antenna 14.

[0063] The field strength output tube 10 is located at the second end of the power amplifier 11 and is used to be in close contact with the component under test.

[0064] The controller 12 is used to acquire a first test frequency, determine a first output power corresponding to the first test frequency based on a pre-stored correspondence between test frequency and output power, and send the first test frequency and the first output power to the signal generator 13.

[0065] The signal generator 13 is used to emit a first electromagnetic signal based on a first test frequency, and send the first electromagnetic signal and a first output power to the power amplifier 11;

[0066] The power amplifier 11 is used to amplify the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength; and to radiate the amplified first electromagnetic signal to the field strength output tube 10 through the antenna 14.

[0067] The field strength output tube 10 is used to output an amplified first electromagnetic signal to the component under test.

[0068] In this embodiment, the electrical connection includes at least one of a circuit connection and a wireless connection. If the electrical connection is a circuit connection, the connection method can be a cable connection, that is, the two ends of the signal generator 13 are respectively connected to one end of the controller 12 and one end of the power amplifier 11 via cables, and the other end of the power amplifier 11 is electrically connected to the antenna 14 via a cable. If the electrical connection is a wireless connection, the connection method can be an Ethernet connection, an infrared connection, or a WiFi (Wireless Fidelity) network connection. In this embodiment, no specific limitation is made.

[0069] In this embodiment, the controller 12 may include a frequency display screen, through which the user can input a first test frequency. The controller 12 may also include a test button. Accordingly, the controller 12 acquires the input first test frequency, and when the test button is detected to be triggered, it determines the first output power corresponding to the first test frequency based on the correspondence between the test frequency and output power, and sends the first test frequency and the first output power to the signal generator 13. The test button may be a physical button or a virtual button; no specific limitation is made in this regard.

[0070] The signal generator 13 emits a first electromagnetic signal based on a first test frequency, and sends the first electromagnetic signal and the first output power to the power amplifier 11.

[0071] After receiving the first test frequency and the first output power, the signal generator 13 can first forward the first output power to the power amplifier 11, and then emit a first electromagnetic signal based on the first test frequency. Alternatively, it can first emit the first electromagnetic signal based on the first test frequency, and then simultaneously send the first electromagnetic signal and the first output power to the power amplifier 11; no specific limitation is made in this regard. The signal generator 13 is mainly used to provide electromagnetic signals, which can be sine wave signals, amplitude modulation signals, or pulse signals; no specific limitation is made in this regard.

[0072] It should be noted that the controller 12 can also acquire the first test time input by the user and send the first test time to the signal generator 13. The first test time can be used to represent the start time of emitting the first electromagnetic signal, or it can be used to represent the start and end times of emitting the first electromagnetic signal; there is no specific limitation in this regard. Accordingly, the signal generator 13 emits the first electromagnetic signal based on the first test frequency and the first test time.

[0073] Wherein, if the first test time represents the start time of emitting the first electromagnetic signal, then the signal generator 13 emits the first electromagnetic signal at the first test frequency when the first test time is reached. If the first test time represents the start and end times of emitting the first electromagnetic signal, then the signal generator 13 emits the first electromagnetic signal at the first test frequency when the start time is reached, and stops emitting the first electromagnetic signal at the first test frequency when the end time is reached.

[0074] The power amplifier 11 amplifies the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength. Then, the amplified first electromagnetic signal is radiated to the field strength output tube 10 through the antenna 14. The first test field strength is the field strength required for the test.

[0075] The above description only uses the example of controller 12 sending the first output power to signal generator 13, and signal generator 13 forwarding the first output power to power amplifier 11. In this embodiment, controller 12 can also directly send the first output power to power amplifier 11. That is, controller 12 sends the first test frequency to signal generator 13 and sends the first output power to power amplifier 11. Signal generator 13, based on the first test frequency, emits a first electromagnetic signal and sends the first electromagnetic signal to power amplifier 11. Power amplifier 11, based on the first output power, amplifies the first electromagnetic signal and then radiates the amplified first electromagnetic signal to field strength output tube 10 through antenna 14. Correspondingly, in this implementation, controller 12 is also electrically connected to power amplifier 11.

[0076] The field strength output tube 10 outputs an amplified first electromagnetic signal to the component under test. The field strength output tube 10 is a metal tube, and its material can be set and changed as needed; for example, it can be made of copper, aluminum, or an alloy, without specific limitations. The thickness and length of the field strength output tube 10 can also be set and changed as needed, without specific limitations.

[0077] For the component under test, the user can visually observe whether any abnormal phenomena occur. If abnormal phenomena are observed, the immunity test of the component is considered unsuitable or its immunity performance is poor. If no abnormal phenomena are observed, the immunity test of the component is considered suitable or its immunity performance is good. The component under test can be an instrument panel, in-vehicle display screen, camera, or other components in a vehicle; there are no specific limitations. For example, if the component under test is an in-vehicle display screen, the field strength output tube 10 outputs an amplified first electromagnetic signal to the in-vehicle display screen. The user can visually observe whether any abnormal phenomena such as flickering, black screen, or ripples appear on the in-vehicle display screen. If these phenomena occur, the immunity test of the in-vehicle display screen is considered unsuitable; if they do not occur, the immunity test of the in-vehicle display screen is considered suitable.

[0078] In this embodiment, when testing the anti-interference performance of the component under test (SUT), the field strength output tube 10 is first placed close to the SUT. Then, the test frequency is set by the controller 12, the signal generator 13 emits an electromagnetic signal based on the set test frequency, the power amplifier 11 amplifies the electromagnetic signal, and the field strength output tube 10 outputs the amplified electromagnetic signal to the SUT to test its anti-interference performance. Therefore, the equipment provided in this application can test the anti-interference performance of the SUT without the need for a dedicated laboratory, significantly reducing testing costs. Furthermore, this equipment can be used as a troubleshooting device during the vehicle design phase, without requiring the same precision and full functionality as a laboratory, and is not limited to a laboratory environment; it can be used in any environment, offering high timeliness and thus improving R&D efficiency.

[0079] In the embodiments of this application, see also Figure 1 The device also includes: an electromagnetic shielding layer 15;

[0080] An electromagnetic shielding layer 15 is disposed on the outer surface of the field strength output tube 10 to prevent leakage of the amplified first electromagnetic signal.

[0081] The electromagnetic shielding layer 15 can be coated on the outer surface of the field strength output tube 10, or it can be wrapped around the outer surface of the field strength output tube 10; there is no specific limitation in this regard. The electromagnetic shielding layer 15 can be composed of absorbing material, which absorbs electromagnetic signals, thereby ensuring that the field strength of the electromagnetic signal leaking from the rear end of the field strength output tube 10 is within the safe range for the human body. The absorbing material can be set and changed as needed; there is no specific limitation in this regard.

[0082] In one possible implementation, a first handle 16 is provided on the electromagnetic shielding layer 15 to facilitate carrying the test equipment.

[0083] The material and shape of the first handle 16 can be set and changed as needed, without any specific limitations.

[0084] In one possible implementation, a frequency selection button 17 is provided on the controller 12;

[0085] Frequency selection button 17 is used to select a fixed frequency for testing.

[0086] In this implementation, a frequency dial can be set on the controller 12, displaying multiple fixed frequencies. Different fixed frequencies can be selected for testing by rotating the frequency selection button 17. The frequency selection button 17 is a physical button.

[0087] In another possible implementation, multiple fixed frequencies are displayed on the frequency display screen, and different fixed frequencies can be selected for testing by triggering the frequency selection button 17. In this implementation, the frequency selection button 17 is a virtual button.

[0088] The first test frequency can also be selected based on the frequency selection button 17, and there is no specific limitation on this.

[0089] In one possible implementation, the device also includes: a power supply 18;

[0090] The first end of the power supply 18 is electrically connected to the third end of the controller 12, and the second end of the power supply 18 is provided with a second handle 19.

[0091] In this implementation, the first end of the power supply 18 is connected to the third end of the controller 12 via a cable, and the second end of the power supply 18 is equipped with a second handle 19 for easy carrying of the test equipment. The power supply 18 supplies power to the controller 12, signal generator 13, and power amplifier 11. The material and shape of the second handle 19 can be customized as needed and are not specifically limited.

[0092] The above description uses the example of installing handles on the electromagnetic shielding layer 15 and the power supply 18. In practical applications, handles can also be installed on other components as needed, and no specific limitation is made.

[0093] The testing equipment provided in this application embodiment is miniaturized and easy to move, and is easy to carry by providing a first handle 16 and a second handle 19. Furthermore, the equipment is modular, facilitating disassembly and assembly.

[0094] In this embodiment of the application, before testing the component under test, the field strength of the electromagnetic signal output by the field strength output tube 10 needs to be calibrated to ensure that the field strength of the electromagnetic signal output by the field strength output tube 10 is equal to the test field strength. This process can be as follows:

[0095] The controller 12 is also used to acquire the test frequency and send the test frequency to the signal generator 13;

[0096] The signal generator 13 is also used to emit a third electromagnetic signal based on the test frequency and send the third electromagnetic signal to the power amplifier 11.

[0097] The power amplifier 11 is also used to amplify the third electromagnetic signal based on the current output power, and radiate the amplified third electromagnetic signal to the field strength output tube 10 through the antenna 14.

[0098] The field strength output tube 10 is also used to output an amplified third electromagnetic signal in a dark room;

[0099] The second terminal of the controller 12 is used for electrical connection with the field strength probe;

[0100] The field strength probe is used to detect the field strength corresponding to the amplified third electromagnetic signal and send the detected field strength to the controller 12.

[0101] The controller 12 is also used to associate and store the test frequency and output power when the field strength detected by the field strength probe is equal to the test field strength, so as to obtain the correspondence between the test frequency and the output power; when the field strength detected by the field strength probe is not equal to the test field strength, the controller adjusts the output power until the field strength detected by the field strength probe is equal to the test field strength.

[0102] In this implementation, the controller 12 acquires the input test frequency and sends it to the signal generator 13. Based on the test frequency, the signal generator 13 emits a third electromagnetic signal and sends it to the power amplifier 11. The power amplifier 11 amplifies the third electromagnetic signal based on its current output power and radiates the amplified signal to the field strength output tube 10 via the antenna 14. The field strength output tube 10 outputs the amplified third electromagnetic signal within the anechoic chamber. The anechoic chamber can be a fully anechoic chamber or a semi-anechoic chamber; no specific limitation is made.

[0103] After the field strength output tube 10 outputs the amplified third electromagnetic signal, the user can detect the field strength corresponding to the amplified third electromagnetic signal through the field strength probe. The field strength probe feeds back the detected field strength to the controller 12.

[0104] In one possible implementation, the controller 12 is a controller with an integrated power meter. The field strength probe sends the detected field strength to the power meter, which converts the detected field strength into an electrical signal that the controller 12 can recognize. The controller 12 determines whether the detected field strength is equal to the test field strength based on the electrical signal.

[0105] In another possible implementation, the controller 12 itself can convert the field strength detected by the field strength probe into an electrical signal. That is, the controller 12 itself integrates the function of the power meter mentioned above. In this case, the field strength probe directly sends the detected field strength to the controller, and the controller 12 converts it into an electrical signal. Based on the electrical signal, it determines whether the detected field strength is equal to the test field strength.

[0106] For any of the above implementation methods, when the detected field strength is equal to the test field strength, the controller 12 stores the test frequency and output power together to obtain the correspondence between the test frequency and the output power. In this way, during the test, the output power of the power amplifier 11 corresponding to the test frequency can be directly determined, and then the output power of the power amplifier 11 can be adjusted to that output power.

[0107] If the detected field strength is not equal to the test field strength, the controller 12 adjusts the output power of the power amplifier 11 until the detected field strength equals the test field strength. Then, the controller 12 associates and stores the test frequency with the adjusted output power to obtain the correspondence between the test frequency and the output power.

[0108] The above description only illustrates the testing of the component under test at a fixed frequency. In the embodiments of this application, the component under test can also be tested within a frequency range. This process can be as follows:

[0109] The controller 12 is also configured to acquire the test frequency range and test step, determine at least one second test frequency based on the test frequency range and test step, determine the second output power corresponding to each second test frequency based on the correspondence between the test frequency and the output power, and send at least one second test frequency and its corresponding second output power to the signal generator 13.

[0110] The signal generator 13 is also used to emit a second electromagnetic signal based on at least one second test frequency, and to send the second electromagnetic signal and at least one second output power to the power amplifier 11;

[0111] The power amplifier 11 is also used to amplify the second electromagnetic signal based on at least one second output power, so that the field strength corresponding to the amplified second electromagnetic signal is equal to the second test field strength; and to radiate the amplified second electromagnetic signal to the field strength output tube 10 through the antenna 14.

[0112] The field strength output tube 10 is also used to output an amplified second electromagnetic signal to the component under test.

[0113] In this implementation, the controller 12 can acquire the test frequency range and the test step, whereby the test step represents the frequency interval between two adjacent second test frequencies. The test frequency range includes an initial frequency and a termination frequency. Based on the initial frequency, the controller 12 increases the test step to obtain a second test frequency. Based on this second test frequency, it increases the test step again to obtain the next second test frequency, and so on, to obtain at least one second test frequency, where the at least one second test frequency includes an initial frequency and a termination frequency.

[0114] Based on the correspondence between test frequency and output power, controller 12 determines the second output power corresponding to each second test frequency and sends at least one second test frequency and its corresponding second output power to signal generator 13. Power amplifier 11 amplifies the second electromagnetic signal based on at least one second output power, so that the field strength corresponding to the amplified second electromagnetic signal is equal to the second test field strength; the amplified second electromagnetic signal is radiated to field strength output tube 10 through antenna 14, and field strength output tube 10 outputs the amplified second electromagnetic signal to the device under test.

[0115] When the power amplifier 11 amplifies the second electromagnetic signal based on each second output power, the field strength corresponding to the amplified second electromagnetic signal can be equal or unequal. That is, the field strength output by the field strength output tube 10 can be a fixed field strength or different field strengths, without specific limitations. In addition, before testing the component under test based on the test frequency range and test step, the second test field strength is also calibrated. The calibration method is the same as the calibration method described above, and will not be repeated here.

[0116] It should be noted that any controller 12 that can achieve the above functions falls within the scope of protection of this application. The specific structure of the controller 12 can be set and changed as needed, and no specific limitation is made in this regard.

[0117] This application provides an immunity testing device. In this device, a controller determines a first output power based on a first test frequency and sends the first test frequency and the first output power to a signal generator. The signal generator emits a first electromagnetic signal based on the first test frequency and sends the first electromagnetic signal and the first output power to a power amplifier. The power amplifier amplifies the first electromagnetic signal based on the first output power and radiates the amplified first electromagnetic signal through an antenna to a field strength output tube. The field strength output tube outputs the amplified first electromagnetic signal to the component under test, thereby determining the immunity performance of the component under test. Therefore, the device provided in this application can test the immunity of the component under test without the need for a dedicated laboratory, significantly reducing testing costs.

[0118] Figure 2 This is a flowchart of an immunity test method provided in an embodiment of this application. See also... Figure 2 The method includes:

[0119] Step 201: The controller acquires the first test frequency, determines the first output power corresponding to the first test frequency based on the pre-stored correspondence between the test frequency and the output power, and sends the first test frequency and the first output power to the signal generator.

[0120] Step 202: The signal generator emits a first electromagnetic signal based on the first test frequency, and sends the first electromagnetic signal and the first output power to the power amplifier.

[0121] Step 203: The power amplifier amplifies the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength; the amplified first electromagnetic signal is radiated to the field strength output tube through the antenna.

[0122] Step 204: The field strength output tube outputs an amplified first electromagnetic signal to the component under test.

[0123] In one possible implementation, the method also includes:

[0124] The controller acquires the test frequency range and test step, and determines at least one second test frequency based on the test frequency range and test step; it determines the second output power corresponding to each second test frequency based on the correspondence between the test frequency and the output power; and it sends at least one second test frequency and its corresponding second output power to the signal generator.

[0125] The signal generator emits a second electromagnetic signal based on at least one second test frequency, and sends the second electromagnetic signal and at least one second output power to the power amplifier.

[0126] The power amplifier amplifies the second electromagnetic signal based on at least one second output power, so that the field strength corresponding to the amplified second electromagnetic signal is equal to the second test field strength; the amplified second electromagnetic signal is radiated to the field strength output tube through an antenna.

[0127] The field strength output tube outputs an amplified second electromagnetic signal to the component under test.

[0128] In another possible implementation, the method also includes:

[0129] The controller acquires the test frequency and sends the test frequency to the signal generator;

[0130] The signal generator emits a third electromagnetic signal based on the test frequency and sends the third electromagnetic signal to the power amplifier.

[0131] Based on the current output power, the power amplifier amplifies the third electromagnetic signal and radiates the amplified third electromagnetic signal to the field strength output tube through the antenna;

[0132] The field strength output tube outputs an amplified third electromagnetic signal in the dark room;

[0133] The field strength probe detects the field strength corresponding to the amplified third electromagnetic signal and sends the detected field strength to the controller;

[0134] When the field strength detected by the field strength probe is equal to the test field strength, the controller associates and stores the test frequency with the output power to obtain the correspondence between the test frequency and the output power; when the field strength detected by the field strength probe is not equal to the test field strength, the controller adjusts the output power until the field strength detected by the field strength probe is equal to the test field strength.

[0135] This application provides an immunity test method. In this method, a controller determines a first output power based on a first test frequency and sends the first test frequency and the first output power to a signal generator. The signal generator emits a first electromagnetic signal based on the first test frequency and sends the first electromagnetic signal and the first output power to a power amplifier. The power amplifier amplifies the first electromagnetic signal based on the first output power and radiates the amplified first electromagnetic signal to a field strength output transistor via an antenna. The field strength output transistor outputs the amplified first electromagnetic signal to the component under test (DUT), thereby determining the DUT's immunity performance. Therefore, the method provided in this application eliminates the need for a dedicated laboratory to test the immunity of the DUT, significantly reducing testing costs.

[0136] It should be noted that the immunity test method provided in this application embodiment is based on the immunity test equipment described above. For details of the process, please refer to the immunity test equipment embodiment, which will not be repeated here.

[0137] The controller's block diagram can be found in [reference needed]. Figure 3 The controller 300 can vary considerably depending on its configuration or performance. It may include a Central Processing Unit (CPU) 301 and a memory 302. The memory 302 stores at least one line of program code, which is loaded and executed by the processor 301 to implement the operations performed by the controller in the aforementioned immunity test method. Of course, the controller 300 may also have wired or wireless network interfaces, a keyboard, and input / output interfaces for input and output. The controller 300 may also include other components for implementing device functions, which will not be elaborated upon here.

[0138] In an exemplary embodiment, a computer-readable storage medium is also provided, which stores at least one piece of program code that is loaded and executed by a processor to implement the immunity testing method in the above embodiments.

[0139] In an exemplary embodiment, a computer program product is also provided, which stores at least one piece of program code, which is loaded and executed by a processor to implement the immunity test method in the above embodiments.

[0140] Those skilled in the art will understand that all or part of the steps of the above embodiments can be implemented by hardware or by a program instructing related hardware. The program can be stored in a computer-readable storage medium, such as a read-only memory, a disk, or an optical disk.

[0141] The above description is only for the purpose of enabling those skilled in the art to understand the technical solution of this application, and is not intended to limit this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An immunity testing device, characterized in that, The device includes: a field strength output tube, a power amplifier, a controller, a signal generator, and an antenna; The two ends of the signal generator are electrically connected to the first end of the controller and the first end of the power amplifier, respectively. The second end of the power amplifier is electrically connected to the antenna. The second end of the controller is used to electrically connect to the field strength probe. The field strength output tube is located at the second end of the power amplifier and is used to be in close contact with the component under test. The controller is configured to acquire a first test frequency, determine a first output power corresponding to the first test frequency based on a pre-stored correspondence between test frequencies and output power, and send the first test frequency and the first output power to the signal generator. The signal generator is used to emit a first electromagnetic signal based on the first test frequency, and send the first electromagnetic signal and the first output power to the power amplifier; The power amplifier is used to amplify the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength; and to radiate the amplified first electromagnetic signal to the field strength output tube through the antenna. The field strength output tube is used to output the amplified first electromagnetic signal to the component under test; The controller is also used to acquire the test frequency and send the test frequency to the signal generator; The signal generator is also used to emit a third electromagnetic signal based on the test frequency and send the third electromagnetic signal to the power amplifier; The power amplifier is also used to amplify the third electromagnetic signal based on the current output power, and radiate the amplified third electromagnetic signal to the field strength output tube through the antenna; The field strength output tube is also used to output the amplified third electromagnetic signal in the dark room; The field strength probe is used to detect the field strength corresponding to the amplified third electromagnetic signal and send the detected field strength to the controller. The controller is further configured to, when the field strength detected by the field strength probe is equal to the test field strength, associate and store the test frequency with the output power to obtain the correspondence between the test frequency and the output power; and when the field strength detected by the field strength probe is not equal to the test field strength, adjust the output power until the field strength detected by the field strength probe is equal to the test field strength.

2. The device according to claim 1, characterized in that, The controller is further configured to acquire a test frequency range and a test step, determine at least one second test frequency based on the test frequency range and the test step, and determine a second output power corresponding to each second test frequency based on the correspondence between the test frequency and the output power. Send the at least one second test frequency and its corresponding second output power to the signal generator; The signal generator is also used to emit a second electromagnetic signal based on the at least one second test frequency, and send the second electromagnetic signal and at least one second output power to the power amplifier; The power amplifier is further configured to amplify the second electromagnetic signal based on the at least one second output power, so that the field strength corresponding to the amplified second electromagnetic signal is equal to the second test field strength; and radiate the amplified second electromagnetic signal to the field strength output tube through the antenna; The field strength output tube is also used to output the amplified second electromagnetic signal to the component under test.

3. The device according to claim 1, characterized in that, The device also includes: an electromagnetic shielding layer; The electromagnetic shielding layer is disposed on the outer surface of the field strength output tube to prevent leakage of the amplified first electromagnetic signal; The first handle is installed on the electromagnetic shielding layer.

4. The device according to claim 1, characterized in that, A frequency selection button is provided on the controller; The frequency selection button is used to select a fixed frequency for testing.

5. The device according to claim 1, characterized in that, The device also includes: a power supply; The first end of the power supply is electrically connected to the third end of the controller, and the second end of the power supply is provided with a second handle.

6. An immunity test method, characterized in that, The method includes: The controller acquires a first test frequency, determines a first output power corresponding to the first test frequency based on a pre-stored correspondence between test frequencies and output power, and sends the first test frequency and the first output power to the signal generator. The signal generator emits a first electromagnetic signal based on the first test frequency, and sends the first electromagnetic signal and the first output power to the power amplifier; The power amplifier amplifies the first electromagnetic signal based on the first output power, so that the field strength corresponding to the amplified first electromagnetic signal is equal to the first test field strength; the amplified first electromagnetic signal is radiated to the field strength output tube through the antenna. The field strength output tube outputs the amplified first electromagnetic signal to the component under test; The method further includes: The controller acquires the test frequency and sends the test frequency to the signal generator; The signal generator emits a third electromagnetic signal based on the test frequency and sends the third electromagnetic signal to the power amplifier; The power amplifier amplifies the third electromagnetic signal based on the current output power, and radiates the amplified third electromagnetic signal to the field strength output tube through the antenna; The field strength output tube outputs the amplified third electromagnetic signal in the dark room; The field strength probe detects the field strength corresponding to the amplified third electromagnetic signal and sends the detected field strength to the controller; When the field strength detected by the field strength probe is equal to the test field strength, the controller associates and stores the test frequency with the output power to obtain the correspondence between the test frequency and the output power; when the field strength detected by the field strength probe is not equal to the test field strength, the controller adjusts the output power until the field strength detected by the field strength probe is equal to the test field strength.

7. An electronic device, characterized in that, The electronic device includes a processor and a memory, wherein the memory stores at least one piece of program code, which is loaded and executed by the processor to implement the immunity test method described in claim 6 for the controller, signal generator, or power amplifier.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores at least one piece of program code, which is loaded and executed by a processor to implement the immunity test method of claim 6.

9. A computer program product, characterized in that, The computer program product stores at least one piece of program code, which is loaded and executed by a processor to implement the immunity test method as described in claim 6.

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