Electromagnetic compatibility evaluation method and system based on vehicle electromagnetic radiation database

Abstract

The present invention relates to the field of vehicle electromagnetic compatibility testing technology. Disclosed are an electromagnetic compatibility evaluation method and system based on a complete vehicle electromagnetic radiation database. The database contains standard electromagnetic radiation curves for multiple vehicles that meet electromagnetic compatibility standards. The method comprises the following steps: obtaining radiation emission data from key components of the vehicle under test and constructing a complete vehicle electromagnetic radiation curve for the vehicle under test; and determining whether electromagnetic radiation risks exist based on the pre-established complete vehicle electromagnetic radiation database. By constructing a complete vehicle electromagnetic radiation database, the present invention enables rapid assessment of complete vehicle electromagnetic radiation risks, facilitating timely rectification during the vehicle production phase.

Description

Technical Field

[0001] The present invention belongs to the technical field of vehicle electromagnetic compatibility testing, and in particular relates to an electromagnetic compatibility evaluation method and system based on a whole vehicle electromagnetic radiation database. Background Art

[0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] Vehicle electromagnetic radiation characteristics are a key attribute of vehicle electromagnetic compatibility (EMC). These characteristics are addressed in GB 34660-2017, "Requirements and Test Methods for Electromagnetic Compatibility of Road Vehicles," and GB 14023-2011, "Radio Disturbance Characteristics of Vehicles, Vessels, and Internal Combustion Engines for Protection of External Receivers - Limits and Methods of Measurement." These characteristics are considered regulatory testing items for whole-vehicle (WV) emissions. Generally, WV EMC measurements are conducted in a standard 10-meter anechoic chamber equipped with a high-end receiver, antenna, coaxial cable, and a computer with test software installed. The antenna receives the vehicle's externally radiated electromagnetic field and compares it to the standard limits. A test is considered qualified if it does not exceed the standard limits. However, WV EMC testing laboratories are long to construct, costly to build and maintain, and require a large footprint, making them unsuitable for routine testing needs. Furthermore, when WV EMC tests fail, it is difficult to quickly identify the faulty component, requiring further investigation.

[0004] At present, some relevant manufacturers have also proposed simple alternative methods, such as patent document CN107478920A. By conducting near-field testing and analysis of the electromagnetic compatibility characteristics in the vehicle, EMI electromagnetic radiation problems in the entire vehicle can be discovered in a timely manner, providing a basis for subsequent vehicle radiation interference (far-field) testing. However, the operation process of this test is cumbersome. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides an electromagnetic compatibility evaluation method and system based on a complete vehicle electromagnetic radiation database. By building a complete vehicle electromagnetic radiation database, it is possible to quickly assess the electromagnetic radiation risk of the entire vehicle, facilitating timely rectification during the vehicle production phase.

[0006] To achieve the above objectives, one or more embodiments of the present invention provide the following technical solutions:

[0007] An electromagnetic compatibility evaluation method based on a vehicle electromagnetic radiation database, wherein the vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that meet electromagnetic compatibility standards, the method comprising the following steps:

[0008] Acquire radiation emission data of key components of the vehicle to be tested and construct an electromagnetic radiation curve of the entire vehicle to be tested;

[0009] Based on the pre-established vehicle electromagnetic radiation database, determine whether there is an electromagnetic radiation risk.

[0010] Furthermore, the method for constructing a vehicle electromagnetic radiation database includes:

[0011] Obtaining electromagnetic radiation test data corresponding to multiple vehicles that pass electromagnetic compatibility testing, wherein the electromagnetic radiation test data for each vehicle includes radiation values ​​of each key component within a set frequency range;

[0012] Dividing the set frequency range into a plurality of frequency bands;

[0013] For each vehicle and each component, read the maximum radiation value and its corresponding frequency in each frequency band to form the standard electromagnetic radiation curve of the component;

[0014] For each vehicle, the standard electromagnetic radiation curves of each component are integrated based on the frequency data to generate the standard electromagnetic radiation curve of the entire vehicle.

[0015] Furthermore, generating a standard electromagnetic radiation curve of the entire vehicle includes:

[0016] For each vehicle, obtain the standard electromagnetic radiation curve corresponding to each component;

[0017] Extract all frequencies and corresponding radiation values ​​contained in these standard electromagnetic radiation curves;

[0018] Only the maximum radiation value is read at each frequency to obtain the standard electromagnetic radiation curve of the vehicle.

[0019] Furthermore, constructing the electromagnetic radiation curve of the vehicle to be tested includes:

[0020] Obtain the test radiation value of each key component within the set frequency range;

[0021] For each component, read the maximum radiation value and its corresponding frequency in each frequency band to form the electromagnetic radiation curve of the component;

[0022] Based on the frequency data, the electromagnetic radiation curves of each component are integrated to generate the standard electromagnetic radiation curve of the entire vehicle.

[0023] Furthermore, determining whether there is an electromagnetic radiation risk includes:

[0024] Comparing the electromagnetic radiation curve of the vehicle to be tested with the standard electromagnetic radiation curves of various vehicles in the database to determine whether there is a frequency band that exceeds the historical radiation value;

[0025] If not, the electromagnetic compatibility of the vehicle to be tested is qualified;

[0026] If any, for frequency bands that exceed historical data, retrieve the electromagnetic radiation data of each component in that frequency band to determine the specific components that exceed the historical radiation values.

[0027] Furthermore, determining whether there is a frequency band that exceeds the historical radiation value includes: if on the whole vehicle electromagnetic radiation curve of the vehicle to be tested, there is a radiation value of a certain frequency that is less than a set threshold value than the minimum historical radiation value at the frequency, or is greater than the set threshold value than the maximum historical radiation value at the frequency, it is considered that the corresponding frequency band exceeds the historical radiation value.

[0028] One or more embodiments provide an electromagnetic compatibility evaluation system based on a vehicle electromagnetic radiation database, including:

[0029] The vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that have passed electromagnetic compatibility tests;

[0030] The test data processing module of the vehicle to be tested is used to obtain the radiation emission data of the key components of the vehicle to be tested and construct the electromagnetic radiation curve of the whole vehicle to be tested;

[0031] The electromagnetic radiation risk determination module is used to determine whether there is an electromagnetic radiation risk based on a pre-established vehicle electromagnetic radiation database.

[0032] One or more embodiments provide a computer-readable storage medium having a computer program stored thereon. When the program is executed by a processor, an electromagnetic compatibility testing method is implemented.

[0033] One or more embodiments provide a host computer, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the electromagnetic compatibility testing method is implemented.

[0034] One or more embodiments provide an electromagnetic compatibility testing system, including a spectrum analyzer and a signal receiving antenna, wherein the spectrum analyzer is connected to the host computer.

[0035] One or more of the above technical solutions have the following beneficial effects:

[0036] This application constructs a whole vehicle electromagnetic radiation database for reference, and compares the radiation test data of the vehicle to be tested to achieve the evaluation of the electromagnetic compatibility of the whole vehicle. It is convenient and fast, and can be tested multiple times on demand to meet the needs of vehicle electromagnetic compatibility testing during the production process.

[0037] The electromagnetic radiation curve of the entire vehicle is constructed based on the electromagnetic radiation curve of each component on the vehicle. During the assessment, we first determine whether there is a risk for the entire vehicle based on the electromagnetic radiation curve of the entire vehicle. If there is a risk, we further check the components. On the one hand, this ensures the efficiency of the assessment, and on the other hand, it enables the rapid detection of problem components.

[0038] This application builds a vehicle electromagnetic radiation database based on a large amount of real data, and generates a standard electromagnetic radiation curve based on vehicles that pass the electromagnetic compatibility test. Compared with the traditional method of setting empirical threshold values ​​for each component, it can take into account the impact of the vehicle's propagation paths and sensitive equipment on the vehicle's electromagnetic radiation, and is more reliable.

[0039] This application only uses a spectrum analyzer and a signal receiving antenna to evaluate the electromagnetic radiation of the entire vehicle. It is simple to operate, low-cost, and highly applicable. Electromagnetic radiation testing can be carried out on demand at any time during the production process, and problems can be discovered and rectified in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0041] Figure 1 This is an overall flow chart of an electromagnetic compatibility evaluation method based on a vehicle electromagnetic radiation database in one or more embodiments of the present invention;

[0042] Figure 2 The flowchart of the method for constructing the vehicle electromagnetic radiation database in one or more embodiments of the present invention is shown. DETAILED DESCRIPTION

[0043] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which the present invention belongs.

[0044] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0045] In the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0046] Example 1

[0047] This embodiment discloses an electromagnetic compatibility evaluation method based on a vehicle electromagnetic radiation database, which is applied to the new product development stage, including the vehicle electromagnetic radiation database stage and the electromagnetic compatibility testing stage.

[0048] (1) Vehicle electromagnetic radiation database construction stage

[0049] This embodiment constructs a whole-vehicle electromagnetic radiation database based on a large amount of real data. On the one hand, the electromagnetic radiation data in the database are all obtained through real measurements and are authentic and referenceable. On the other hand, since automobiles, especially electric vehicles, have a large number of high-voltage and high-power components and electronic control units, and due to the presence of transmission paths such as circuits and some sensitive equipment, the electromagnetic radiation distribution of the whole vehicle is more complex. This embodiment uses the data obtained through real measurements on the whole vehicle as a standard, which is safer and more reliable than the standard limits.

[0050] This embodiment conducts near-field electromagnetic radiation testing on key components within a large number of existing vehicle models. Specifically, a spectrum analyzer combined with a component test antenna is used to perform near-field electromagnetic radiation testing on key components within each vehicle. This generates a set of component electromagnetic radiation data packets for each vehicle. These data packets for all vehicle models are then integrated to form a complete vehicle electromagnetic radiation database.

[0051] As a specific implementation method, multiple vehicles that have passed electromagnetic compatibility testing will be included in the test scope. These vehicles should cover as many mainstream models as possible on the market, so as to facilitate the establishment of a more complete and reliable database. Using a spectrum analyzer and a signal receiving antenna, each key component of each vehicle will be tested for electromagnetic radiation and recorded, including:

[0052] (1) Preparation stage:

[0053] Initialize the spectrum analyzer: select a frequency range of 30MHz to 1000MHz, a bandwidth of 100kHz, use peak detection, and set the maximum value to hold.

[0054] Vehicle status debugging: Debug the current vehicle to be tested to the whole vehicle narrowband electromagnetic radiation emission test state.

[0055] According to the alternative test method for electromagnetic radiation emission testing in Appendix B of GB 34660-2017 "Electromagnetic Compatibility Requirements and Test Methods for Road Vehicles", the frequency range of 30MHz to 1000MHz is divided into 14 frequency bands. Based on the vehicle status in Section 5.3.2, the spectrum analyzer and antenna are debugged.

[0056] (2) Testing phase:

[0057] Based on the list of key components, conduct electromagnetic radiation tests on each key component, obtaining and recording the radiation values ​​for each key component within a set frequency range (30-1000 MHz). These key components include, but are not limited to, electrical systems, drive motors, motor controllers, DC / DC converters, power batteries, and other electronic components.

[0058] After the electromagnetic radiation test, the recorded test data is processed to generate a vehicle electromagnetic radiation database, which specifically includes the following steps:

[0059] (1) Obtain electromagnetic radiation test data of the above-mentioned multiple vehicles, wherein the electromagnetic radiation test data of each vehicle includes the radiation value of each key component within a set frequency range; in this embodiment, 14 frequency bands are used as set frequency bands, covering a frequency range of 30-1000 MHz.

[0060] (2) For each vehicle, a standard electromagnetic radiation curve of each component is constructed. Specifically, for each component, the maximum radiation value and its corresponding frequency in each set frequency band are read to form the standard electromagnetic radiation curve of the component. In this embodiment, the electromagnetic radiation data of each vehicle is recorded in the form of Table 1.

[0061] Table 1 Vehicle interior radiation disturbance record table

[0062]

[0063] (3) For each vehicle, based on the frequency data, the standard electromagnetic radiation curves of each component are integrated to generate a standard electromagnetic radiation curve for the entire vehicle. Specifically, based on the standard electromagnetic radiation curves of each component, all frequencies contained therein are extracted, and the corresponding maximum electromagnetic radiation values ​​are read respectively to form the standard electromagnetic radiation curve for the entire vehicle;

[0064] The standard electromagnetic radiation curves of the above-mentioned multiple vehicles form a vehicle electromagnetic radiation database.

[0065] As an example, for the first vehicle, we first test the external radiation level of component A at zero distance. The maximum peak value for each of the 14 frequency bands is recorded and saved as peak waveform 1, resulting in the standard electromagnetic radiation curve for component A. Next, we test the external radiation level of component B at zero distance. The maximum peak value for each of the 14 frequency bands is recorded and saved as peak waveform 2, resulting in the standard electromagnetic radiation curve for component B. This process continues in this manner until the standard electromagnetic radiation curves for all components in the critical component list are complete. After obtaining the standard electromagnetic radiation curves for all components in the vehicle, the maximum value of the electromagnetic radiation for each component is read for each frequency band, resulting in the standard electromagnetic radiation curve for the entire vehicle. The same method is used to test the standard electromagnetic radiation curves of other vehicles, thus forming a complete vehicle radiation emission database. The data format for the complete vehicle standard electromagnetic radiation curve is shown in Table 2. As can be seen, each frequency band contains multiple radiation peaks and corresponding frequencies.

[0066] Table 2 Vehicle interior radiation disturbance database

[0067]

[0068] (2) Electromagnetic compatibility testing phase

[0069] When the new product development reaches a certain stage, the same measurement equipment and methods as those used in the vehicle electromagnetic radiation database construction stage are used to test and obtain the radiation interference data of the key components in the new product. By comparing it with the vehicle electromagnetic radiation database, it is determined whether the vehicle has the risk of exceeding the electromagnetic radiation standard. The specific steps include:

[0070] Step 1: Obtain radiation emission data of key components of the vehicle to be tested and construct an electromagnetic radiation curve of the entire vehicle to be tested.

[0071] The radiation emission data of the key components of the vehicle under test includes the radiation emission frequencies of different key components of the vehicle in multiple set frequency bands. The construction of the vehicle electromagnetic radiation curve for the vehicle under test is the same as the construction method of the standard electromagnetic radiation curve for a single vehicle in the vehicle electromagnetic radiation database construction stage above.

[0072] Step 2: Determine whether there is an electromagnetic radiation risk based on a pre-established vehicle electromagnetic radiation database; the vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that have passed electromagnetic compatibility.

[0073] The step 2 specifically includes:

[0074] Step 2.1: Compare the electromagnetic radiation curve of the vehicle to be tested with the standard electromagnetic radiation curves of various vehicles in the database to determine whether there is a frequency band that exceeds the historical radiation value; if not, the electromagnetic compatibility of the vehicle to be tested is qualified; if so, proceed to step 2.2;

[0075] Step 2.2: For frequency bands that exceed historical data, retrieve the electromagnetic radiation data of each component in the frequency band to determine the specific components that exceed the historical radiation values.

[0076] Among them, judging whether there is a frequency band that exceeds the historical radiation value specifically includes: comparing the radiation value corresponding to each frequency on the whole vehicle electromagnetic radiation curve of the vehicle to be tested with the historical radiation value of the corresponding frequency on the whole vehicle standard electromagnetic radiation curve of each vehicle in the database; if there is a frequency whose radiation value is smaller than the set threshold value than the minimum historical radiation value at the frequency, or larger than the set threshold value than the maximum historical radiation value at the frequency, it is considered that the frequency band exceeds the historical radiation value.

[0077] Example 2

[0078] Based on the method provided in Example 1, this embodiment provides an electromagnetic compatibility evaluation system based on a vehicle electromagnetic radiation database, including:

[0079] The vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that have passed electromagnetic compatibility tests;

[0080] The test data processing module of the vehicle to be tested is used to obtain the radiation emission data of the key components of the vehicle to be tested and construct the electromagnetic radiation curve of the whole vehicle to be tested;

[0081] The electromagnetic radiation risk determination module is used to determine whether there is an electromagnetic radiation risk based on a pre-established vehicle electromagnetic radiation database.

[0082] Example 3

[0083] The purpose of this embodiment is to provide a computer-readable storage medium.

[0084] A computer-readable storage medium storing a vehicle electromagnetic radiation database and a computer program for performing electromagnetic compatibility testing, wherein the vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that pass electromagnetic compatibility testing;

[0085] When the program is executed by the processor, the following steps are performed:

[0086] Acquire radiation emission data of key components of the vehicle to be tested and construct an electromagnetic radiation curve of the entire vehicle to be tested;

[0087] Based on the pre-established vehicle electromagnetic radiation database, determine whether there is an electromagnetic radiation risk.

[0088] Example 4

[0089] The purpose of this embodiment is to provide a host computer.

[0090] A host computer includes a memory, a processor, and a computer program stored in the memory and executable on the processor. The memory further stores a vehicle electromagnetic radiation database, the vehicle electromagnetic radiation database including standard electromagnetic radiation curves of multiple vehicles that meet electromagnetic compatibility standards.

[0091] When the processor executes the program, the following steps are implemented:

[0092] Acquire radiation emission data of key components of the vehicle to be tested and construct an electromagnetic radiation curve of the entire vehicle to be tested;

[0093] Based on the pre-established vehicle electromagnetic radiation database, determine whether there is an electromagnetic radiation risk.

[0094] Example 5

[0095] The purpose of this embodiment is to provide an electromagnetic compatibility testing system.

[0096] An electromagnetic compatibility testing system includes a spectrum analyzer and a signal receiving antenna, wherein the spectrum analyzer is connected to the host computer as described in the fourth embodiment.

[0097] The host computer stores a vehicle electromagnetic radiation database obtained by testing using the same spectrum analyzer and signal receiving antenna, wherein the vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that meet electromagnetic compatibility standards.

[0098] The steps involved in Examples 2 to 5 above correspond to the electromagnetic compatibility testing phase in Example 1. For detailed implementation, please refer to the relevant description of Example 1. The term "computer-readable storage medium" should be understood to mean a single medium or multiple media containing one or more instruction sets; it should also be understood to include any medium capable of storing, encoding, or carrying an instruction set for execution by a processor and causing the processor to perform any method of the present invention.

[0099] Those skilled in the art will appreciate that the modules or steps of the present invention described above can be implemented using a general-purpose computer device. Alternatively, they can be implemented using program code executable by a computing device, which can then be stored in a storage device and executed by the computing device. Alternatively, they can be fabricated into separate integrated circuit modules, or multiple modules or steps can be fabricated into a single integrated circuit module for implementation. The present invention is not limited to any specific combination of hardware and software.

[0100] Although the above describes the specific embodiments of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without any creative work are still within the scope of protection of the present invention.

Claims

1. An electromagnetic compatibility evaluation method based on a vehicle electromagnetic radiation database, characterized in that: The vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that meet electromagnetic compatibility standards. The method includes the following steps: Acquire radiation emission data of key components of the vehicle to be tested and construct an electromagnetic radiation curve of the entire vehicle to be tested; Determine whether there is an electromagnetic radiation risk based on the pre-established vehicle electromagnetic radiation database; The method for constructing a vehicle electromagnetic radiation database includes: Obtaining electromagnetic radiation test data corresponding to multiple vehicles that pass electromagnetic compatibility testing, wherein the electromagnetic radiation test data for each vehicle includes radiation values ​​of each key component within a set frequency range; Dividing the set frequency range into a plurality of frequency bands; For each vehicle and each component, read the maximum radiation value and its corresponding frequency in each frequency band to form the standard electromagnetic radiation curve of the component; For each vehicle, based on the frequency data, the standard electromagnetic radiation curves of each component are integrated to generate the standard electromagnetic radiation curve of the entire vehicle; The method for constructing the whole vehicle electromagnetic radiation curve of the vehicle to be tested is the same as the method for constructing the standard whole vehicle electromagnetic radiation curve of a single vehicle in the whole vehicle electromagnetic radiation database construction stage.

2. The electromagnetic compatibility evaluation method according to claim 1, wherein: Generating the standard electromagnetic radiation curve of the whole vehicle includes: For each vehicle, obtain the standard electromagnetic radiation curve corresponding to each component; Extract all frequencies and corresponding radiation values ​​contained in these standard electromagnetic radiation curves; Only the maximum radiation value is read at each frequency to obtain the standard electromagnetic radiation curve of the vehicle.

3. The electromagnetic compatibility evaluation method according to claim 1 or 2, wherein: Constructing the electromagnetic radiation curve of the vehicle to be tested includes: Obtain the test radiation value of each key component within the set frequency range; For each component, read the maximum radiation value and its corresponding frequency in each frequency band to form the electromagnetic radiation curve of the component; Based on the frequency data, the electromagnetic radiation curves of each component are integrated to generate the standard electromagnetic radiation curve of the entire vehicle.

4. The electromagnetic compatibility evaluation method according to claim 3, wherein: Determining whether there is an electromagnetic radiation risk includes: Comparing the electromagnetic radiation curve of the vehicle to be tested with the standard electromagnetic radiation curves of various vehicles in the database to determine whether there is a frequency band that exceeds the historical radiation value; If not, the electromagnetic compatibility of the vehicle to be tested is qualified; If any, for frequency bands that exceed historical data, retrieve the electromagnetic radiation data of each component in that frequency band to determine the specific components that exceed the historical radiation values.

5. The electromagnetic compatibility evaluation method according to claim 3, wherein: Determining whether there is a frequency band that exceeds the historical radiation value includes: if, on the whole vehicle electromagnetic radiation curve of the vehicle to be tested, there is a radiation value of a certain frequency that is less than a set threshold value than the minimum historical radiation value at the frequency, or is greater than the set threshold value than the maximum historical radiation value at the frequency, it is considered that the corresponding frequency band exceeds the historical radiation value.

6. An electromagnetic compatibility evaluation system based on a vehicle electromagnetic radiation database, characterized in that: include: The vehicle electromagnetic radiation database includes standard electromagnetic radiation curves of multiple vehicles that have passed electromagnetic compatibility tests; The test data processing module of the vehicle to be tested is used to obtain the radiation emission data of the key components of the vehicle to be tested and construct the electromagnetic radiation curve of the whole vehicle to be tested; The electromagnetic radiation risk assessment module is used to determine whether there is an electromagnetic radiation risk based on a pre-established vehicle electromagnetic radiation database; The method for constructing a vehicle electromagnetic radiation database includes: Obtaining electromagnetic radiation test data corresponding to multiple vehicles that pass electromagnetic compatibility testing, wherein the electromagnetic radiation test data for each vehicle includes radiation values ​​of each key component within a set frequency range; Dividing the set frequency range into a plurality of frequency bands; For each vehicle and each component, read the maximum radiation value and its corresponding frequency in each frequency band to form the standard electromagnetic radiation curve of the component; For each vehicle, based on the frequency data, the standard electromagnetic radiation curves of each component are integrated to generate the standard electromagnetic radiation curve of the entire vehicle; The method for constructing the whole vehicle electromagnetic radiation curve of the vehicle to be tested is the same as the method for constructing the standard whole vehicle electromagnetic radiation curve of a single vehicle in the whole vehicle electromagnetic radiation database construction stage.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the electromagnetic compatibility evaluation method according to any one of claims 1 to 5 is implemented.

8. A host computer comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the electromagnetic compatibility evaluation method according to any one of claims 1 to 5 is implemented.

9. An electromagnetic compatibility test system, comprising a spectrum analyzer and a signal receiving antenna, characterized in that: The spectrum analyzer is connected to the host computer as claimed in claim 8.

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