Radiated emission test method, device, computer equipment, storage medium

Abstract

The present application relates to a radiation emission test method, device, computer equipment, storage medium and computer program product. The method includes: conducting a whole vehicle radiation emission test on a body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and whole vehicle electronic and electrical components; the body-in-white is powered by a power supply network, and the electromagnetic wave radiation measurement value emitted by the body-in-white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, the radiation-sensitive electronic and electrical components are judged from the whole vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value; the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value. The use of this method enables the grounding points of radiation-sensitive electronic and electrical components to be rectified before the vehicle is assembled, which reduces the cost of vehicle development and improves the efficiency of radiation emission testing.

Description

Technical Field

[0001] The present application relates to the field of electromagnetic microwave technology, and in particular to a radiation emission test method, device, computer equipment, storage medium and computer program product. Background Art

[0002] During the product development process of major car manufacturers, there will often be more or less, heavier or lighter emission problems for the entire vehicle, and the excessive radiation emitted by the vehicle will seriously affect the personal safety of the driver and passengers.

[0003] At present, the vehicle's radiation emission exceeding the standard is usually rectified by making rectifications at the docking location in the late testing stage of vehicle product development. Since the vehicle wiring harness layout and grounding point selection process is in the early stage of the vehicle development process, rectifications are made at the docking location only after radiation emission problems occur in the late testing stage of product development. That is, rectifications are made only after the vehicle's radiation emission exceeding the standard is exposed, which increases the cost of product development, lengthens the development cycle, and reduces the efficiency of radiation emission testing. Summary of the invention

[0004] Based on this, it is necessary to provide a radiation emission method, device, computer equipment, computer readable storage medium and computer program product to address the above technical problems.

[0005] In the first aspect, the present application provides a radiation emission test method. The method includes: performing a whole vehicle radiation emission test on a body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and whole vehicle electronic and electrical components; the body-in-white is powered by a power supply network, and the electromagnetic wave radiation measurement value emitted by the body-in-white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, the radiation-sensitive electronic and electrical components are judged from the whole vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value; the grounding point of the radiation-sensitive electronic and electrical components is rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0006] In one of the embodiments, before the whole-vehicle radiation emission test is performed on the body in the anechoic chamber, the method further includes: constructing the body in white according to the body structure of the target vehicle; arranging the whole-vehicle electronic and electrical system and signal transmission lines on the body in white according to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, to form a configured body in white.

[0007] In one embodiment, the electromagnetic wave radiation measurement value includes electric field strength; the use of a power supply network to power the body-in-white and obtaining the electromagnetic wave radiation measurement value emitted by the body-in-white includes: using a power supply network to power each electronic and electrical component on the configured body-in-white; using an antenna receiving device to receive the electromagnetic waves emitted by each electronic and electrical component, and respectively calculating the electric field strength of electromagnetic waves of different frequencies.

[0008] In one of the embodiments, when the electromagnetic wave radiation measurement value is greater than the preset limit value, radiation-sensitive electronic and electrical components are judged from the electronic and electrical components of the whole vehicle according to the electromagnetic wave radiation measurement value, including: when the electromagnetic wave radiation measurement value is greater than the preset limit value, each of the electronic and electrical components of the whole vehicle is powered off in turn; the electromagnetic wave radiation measurement value measured when all the electronic and electrical components of the whole vehicle are powered on normally is determined as the first measurement value, and the electromagnetic wave measurement value measured after the target electronic and electrical component is powered off is determined as the second measurement value; if the first measurement value is inconsistent with the second measurement value, the target electronic and electrical component is determined as a radiation-sensitive electronic and electrical component.

[0009] In one embodiment, the grounding point of the radiation-sensitive electronic and electrical component is rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value, including: changing the grounding loop of the risk-sensitive electronic and electrical component by adjusting the grounding point of the radiation-sensitive electronic and electrical component until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body in white is less than or equal to the preset limit value, and then stopping the rectification.

[0010] In one of the embodiments, the method further includes: when the electromagnetic wave radiation measurement value is less than or equal to the preset limit value, it indicates that the body-in-white radiation emission test has passed.

[0011] In the second aspect, the present application also provides a radiation emission test device. The device includes: a test module, which is used to perform a whole vehicle radiation emission test on the body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and whole vehicle electronic and electrical components; a measurement value acquisition module, which is used to use the power supply network to power the body-in-white and obtain the electromagnetic wave radiation measurement value emitted by the body-in-white; a judgment module, which is used to judge the radiation-sensitive electronic and electrical components from the whole vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value when the electromagnetic wave radiation measurement value is greater than the preset limit value; and a rectification module, which is used to rectify the grounding point of the radiation-sensitive electronic and electrical components until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0012] In a third aspect, the present application also provides a computer device. The computer device includes a memory and a processor, the memory stores a computer program, and the processor implements the following steps when executing the computer program: performing a vehicle radiation emission test on the body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and vehicle electronic and electrical components; the body-in-white is powered by a power supply network, and the electromagnetic wave radiation measurement value emitted by the body-in-white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, the radiation-sensitive electronic and electrical components are judged from the vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value; the grounding point of the radiation-sensitive electronic and electrical components is rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0013] In a fourth aspect, the present application also provides a computer-readable storage medium. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the following steps are implemented: performing a vehicle radiation emission test on a body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and vehicle electronic and electrical components; the body-in-white is powered by a power supply network, and the electromagnetic wave radiation measurement value emitted by the body-in-white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, radiation-sensitive electronic and electrical components are determined from the vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value; and the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0014] In a fifth aspect, the present application also provides a computer program product. The computer program product includes a computer program, which implements the following steps when executed by a processor: performing a vehicle radiation emission test on a body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and vehicle electronic and electrical components; the body-in-white is powered by a power supply network, and the electromagnetic wave radiation measurement value emitted by the body-in-white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, radiation-sensitive electronic and electrical components are determined from the vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value; and the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0015] The above-mentioned radiation emission test method, device, computer equipment, storage medium and computer program product perform radiation emission tests on a body-in-white equipped with signal transmission lines and vehicle electronic and electrical components, and determine the radiation-sensitive electronic and electrical components in the vehicle electronic and electrical components through the obtained electromagnetic wave radiation measurement values, and rectify the grounding points of the radiation-sensitive electronic and electrical components, so that the grounding points of the radiation-sensitive electronic and electrical components can be rectified before the vehicle is assembled, reducing the cost of vehicle development and improving the efficiency of radiation emission testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A diagram showing an application environment of a radiation emission test method in an embodiment;

[0017] Figure 2 is a schematic flow chart of a radiation emission testing method in one embodiment;

[0018] Figure 3 A schematic flow chart of a test step in an embodiment;

[0019] Figure 4 A schematic flow chart of a measurement value acquisition step in one embodiment;

[0020] Figure 5 A schematic diagram of a flow chart of a determination step in an embodiment;

[0021] Figure 6 is a schematic flow chart of a radiation emission testing method in another embodiment;

[0022] Figure 7 is a structural block diagram of a radiation emission testing device in one embodiment;

[0023] Figure 8 FIG. 4 is a diagram showing the internal structure of a computer device in one embodiment. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0025] The radiation emission test method provided in the embodiment of the present application can be applied to Figure 1In the application environment shown. Among them, the terminal 102 communicates with the server 104 through the network. The data storage system can store the data that the server 104 needs to process. The data storage system can be integrated on the server 104, or it can be placed on the cloud or other network servers. The server obtains the electromagnetic wave radiation measurement value obtained by moving the body-in-white configured with the signal transmission line and the electronic and electrical system of the whole vehicle into the radio wave darkroom. When the electromagnetic wave radiation measurement value is greater than the preset limit, the radiation-sensitive electronic and electrical components are judged from the electronic and electrical components of the whole vehicle according to the electromagnetic wave radiation measurement value, and then the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit. Among them, the terminal 102 can be a measurement terminal for receiving and measuring electromagnetic waves emitted by the whole vehicle; the server 104 can be implemented by an independent server or a server cluster composed of multiple servers.

[0026] In one embodiment, Figure 2 As shown, a radiation emission test method is provided, which is applied to Figure 1 Taking the server 104 in the example as an example, the following steps are included:

[0027] S202, conducting a radiation emission test on the body-in-white in an anechoic chamber; the body-in-white is equipped with signal transmission lines and vehicle electronic and electrical components.

[0028] The body in white refers to the welded assembly of body structure and covering parts, including front fenders, doors, engine hood, trunk lid, but excluding the unpainted body of accessories and decorative parts. The painted body in white plus interior and exterior decoration (including instrument panel, seats, windshield, carpet, interior trim, etc.) and electronic and electrical systems (audio, wiring harness, switches, etc.), plus chassis system (including brake, suspension system, etc.), plus powertrain system (including engine, gearbox, etc.) constitute the whole vehicle.

[0029] Radiated emission test refers to testing the radiation interference intensity of the electronic and electrical equipment in the vehicle to the outside world when it is working normally. This test is generally carried out in an anechoic chamber, where the anechoic chamber refers to a main structure consisting of a shielded room and absorbing materials; the shielded room consists of a shielded shell, a shielded door, a ventilation waveguide window and various power filters. According to user requirements, the shielded shell can be welded or assembled. The anechoic chamber can be used to reduce the interference of external electromagnetic wave signals on the test signal. At the same time, the electromagnetic wave absorbing material can reduce the multipath effect caused by the reflection of the wall and ceiling on the test result. It is suitable for emission, sensitivity and immunity experiments.

[0030] In this embodiment, the radiation emission of the target vehicle during actual operation is simulated by configuring a body-in-white with signal transmission lines and vehicle electronic and electrical samples. The placement and connection of the vehicle electronic and electrical samples are in accordance with the placement and connection relationship of the target vehicle's vehicle electronic and electrical components.

[0031] Specifically, the body in white equipped with signal transmission harnesses and vehicle electronic and electrical components is moved into an anechoic chamber for radiation emission testing.

[0032] S204, supplying power to the BIW using the power supply network, and obtaining a measurement value of electromagnetic wave radiation emitted by the BIW.

[0033] It can be explained that the radiation emission test equipment includes: receiving antenna, measuring receiver, turntable, tested equipment, etc. When the vehicle body-in-white is tested for radiation emission, the configured body-in-white is placed on the turntable in the anechoic chamber, the turntable automatically rotates 360 degrees, the receiving antenna automatically rises and falls between different heights, the maximum radiation value is found, and then the measurement receiver is used to calculate the electromagnetic wave radiation measurement value emitted by the body-in-white.

[0034] Among them, the electromagnetic wave radiation measurement value refers to the measurement value of the intensity of the radiation value emitted by the body in white, which can be the effective power of the electromagnetic wave emitted by the body in white or the field strength.

[0035] Specifically, the power supply network first supplies power to each electronic and electrical system component in the BIW. When the electronic and electrical components in the BIW are operating normally, the configured BIW is moved into an anechoic chamber, and then the electromagnetic wave radiation measurement value emitted by the BIW is obtained through a measuring receiver.

[0036] S206, when the electromagnetic wave radiation measurement value is greater than the preset limit value, radiation sensitive electronic and electrical components are determined from the electronic and electrical components of the vehicle according to the electromagnetic wave radiation measurement value.

[0037] Among them, the preset limit refers to the maximum electromagnetic wave radiation measurement value that will not cause harm to the human body.

[0038] Specifically, when the electromagnetic wave radiation measurement value obtained by S204 is greater than the preset limit, the grounding points of the electronic components configured on the body-in-white need to be rectified; when the electromagnetic wave radiation measurement value obtained by S204 is less than or equal to the preset limit, it indicates that the configured body-in-white has passed the radiation emission test and the target vehicle can be assembled according to the configuration method of the body-in-white.

[0039] S208, rectifying the grounding points of radiation-sensitive electronic and electrical components until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0040] Among them, grounding refers to the connection of the neutral point of the power system and electrical equipment, the exposed conductive parts of the electrical equipment and the conductive parts outside the equipment to the earth through conductors, and is achieved by connecting the grounding point on the electronic equipment with the metal wire and the grounding device. The grounding device leads the leakage current, static charge and lightning current that may be generated on electrical equipment and other production equipment into the ground, thereby avoiding electric shock and possible fire, explosion and other accidents.

[0041] It is understandable that the grounding point selection of vehicle electronic and electrical components is one of the important factors affecting the radiation emission index of the whole vehicle. Most of the problems of excessive radiation emission of the whole vehicle can be corrected by changing the grounding point of the wiring harness body and adjusting the grounding loop of the power supply.

[0042] Specifically, when a radiation sensitive electrical and electronic component is identified, the grounding point of the sensitive electrical and electronic component may be changed to change the area of ​​the grounding loop of the radiation sensitive electrical and electronic component, thereby making the electromagnetic wave radiation measurement value less than or equal to the preset limit.

[0043] In the above-mentioned radiation emission test method, a radiation emission test is performed on a body-in-white equipped with signal transmission lines and vehicle electronic and electrical components, and radiation-sensitive electronic and electrical components in the vehicle electronic and electrical components are determined by the obtained electromagnetic wave radiation measurement values, and the grounding points of the radiation-sensitive electronic and electrical components are rectified, so that the grounding points of the radiation-sensitive electronic and electrical components can be rectified before the vehicle is assembled, thereby reducing the cost of vehicle development and improving the efficiency of radiation emission testing.

[0044] In one embodiment, Figure 3 As shown, the vehicle body in white is tested for radiation emission in an anechoic chamber, which previously included:

[0045] S302, constructing a body-in-white according to the body structure of the target vehicle.

[0046] Among them, the body in white refers to the welded assembly of body structural parts and covering parts, and includes front fenders, doors, engine hood, trunk lid, but does not include the unpainted body of accessories and decorative parts.

[0047] Specifically, the actual vehicle body structure of the target vehicle is restored in full size at a 1:1 ratio, and metal materials are used to construct body structural parts, covering parts, doors, trunk lids and other structures.

[0048] S304, arranging the vehicle's electronic and electrical systems and signal transmission lines on the body-in-white according to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, to form a configured body-in-white.

[0049] Specifically, according to the actual distribution of various electronic and electrical systems in the target vehicle, various electronic and electrical equipment are arranged in the non-metallic cab in the form of simulated samples, and various electronic and electrical equipment are connected by signal transmission lines to form a body-in-white equipped with electronic and electrical systems connected by signal transmission lines.

[0050] In this embodiment, the electronic and electrical equipment in the target vehicle are configured in the body-in-white in the form of simulated samples according to the actual distribution of various electronic and electrical components in the target vehicle, thereby completely restoring the radiation emission environment in the target vehicle and improving the accuracy of the radiation emission test.

[0051] In one embodiment, Figure 4 As shown, the electromagnetic wave radiation measurement value includes the electric field strength; the body-in-white is powered by the power supply network, and the electromagnetic wave radiation measurement value emitted by the body-in-white is obtained, including:

[0052] S402: Power the electronic and electrical components on the configured body-in-white using the power supply network.

[0053] Specifically, the power supply network is used to supply power to each electronic and electrical component on the body-in-white, and the power supply to a target electronic and electrical component can be cut off individually.

[0054] S404, using an antenna receiving device to receive electromagnetic waves emitted by each electronic and electrical component, and respectively calculating the electric field strength of electromagnetic waves of different frequencies.

[0055] Specifically, the antenna receiving device is used to receive the electromagnetic waves emitted by each electronic and electrical component, and the received electromagnetic waves of each frequency band are input into the measuring receiver to calculate the electromagnetic wave radiation measurement value of the electromagnetic waves of each frequency band. When the electromagnetic wave radiation measurement value refers to the field intensity value of the electromagnetic wave, the effective transmission power of the electromagnetic wave is first calculated, and then the effective transmission power is converted into the field intensity value.

[0056] In this embodiment, the electronic and electrical components on the configured BIW are powered by the power supply network so that the electronic and electrical components are in normal working state, thereby making the radiation emission of the BIW after power-on closer to the radiation emission state of an actual vehicle in normal working state.

[0057] In one embodiment, Figure 5 As shown, when the electromagnetic wave radiation measurement value is greater than the preset limit value, the radiation sensitive electronic and electrical components are judged from the electronic and electrical components of the whole vehicle according to the electromagnetic wave radiation measurement value, including:

[0058] S502: When the electromagnetic wave radiation measurement value is greater than a preset limit, each electronic and electrical component of the vehicle is powered off in turn.

[0059] Specifically, the electromagnetic wave radiation measurement value obtained by testing the configured white body is compared with the preset limit value. When the electromagnetic wave radiation measurement value is greater than the preset limit value, each electronic and electrical component is powered off in turn.

[0060] S504, determining the electromagnetic wave radiation measurement value obtained when each vehicle electronic and electrical component is powered normally as the first measurement value, and determining the electromagnetic wave measurement value obtained after the target electronic and electrical component is powered off as the second measurement value.

[0061] Specifically, the electromagnetic wave radiation measurement value obtained when all the electronic and electrical components of the vehicle are powered on normally is determined as the first measurement value; any one of all the electronic and electrical components of the vehicle is determined as the target electronic and electrical component, and the electromagnetic wave measurement value obtained after the target electronic and electrical component is powered off is determined as the second measurement value.

[0062] S506: If the first measurement value is inconsistent with the second measurement value, the target electronic and electrical component is determined to be a radiation sensitive electronic and electrical component.

[0063] Specifically, if the first measurement value is inconsistent with the second measurement value, it means that the target electronic and electrical component has an impact on the electromagnetic wave measurement value of the whole vehicle, so the target electronic and electrical component can be determined as a radiation-sensitive electronic and electrical component. In this embodiment, by sequentially powering off the electronic and electrical components of the whole vehicle, the radiation-sensitive electronic and electrical components in the electronic and electrical components of the whole vehicle are sequentially determined, so that the radiation-sensitive electronic and electrical components can be accurately rectified, thereby improving the rectification efficiency of the configured white body with excessive radiation.

[0064] According to the radiation-sensitive electronic and electrical components identified in the above embodiments, in this embodiment, the grounding point of the component can be rectified, that is, the grounding point of the radiation-sensitive electronic and electrical component is rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit, including: changing the grounding loop of the risk-sensitive electronic and electrical component by adjusting the grounding point of the radiation-sensitive electronic and electrical component, until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body in white is less than or equal to the preset limit, then stopping the rectification.

[0065] Based on the above embodiments, the present invention also provides a vehicle radiation emission method, such as Figure 6 As shown, the steps of the method include:

[0066] S1: In the first round of engineering prototype development, the vehicle cab trial wiring harness and vehicle electronic and electrical samples (manual samples) are arranged on the cab body-in-white according to the overall layout plan to form a configured body-in-white model B1.

[0067] S2: In the anechoic chamber, test the configured body-in-white model with reference to the vehicle radiation emission test method in GB 34660 standard, and record the test data D1.

[0068] S3: Analyze the test data D1 to identify the risk points of the vehicle emission data, sensitive components and potential risk grounding loops.

[0069] S4: Analyze and rectify the grounding points and grounding loops of the risk points identified in S3, form a rectification plan P1, and complete the rectification to form an updated body-in-white model B2.

[0070] S5: In an electromagnetic compatibility darkroom, test system B2 according to the vehicle radiation emission test method in GB 34660 standard and record test data D2.

[0071] S6: The electromagnetic compatibility test engineer analyzes the test data D2 to determine whether the identification risk has been eliminated. If so, execute S7; otherwise, repeat steps S3-S5 (corresponding to Bn, Dn, Pn) until the problem is eliminated.

[0072] S7: Solidify the design of the rectification plan P1 (Pn) and implement it in the engineering prototype stage.

[0073] The present invention designs a method for selecting the grounding point of a wiring harness based on the body-in-white of a commercial vehicle cab. In the early stage of vehicle development, the body-in-white, trial-produced wiring harness, and vehicle electronic and electrical A samples (manual samples) are arranged according to the vehicle layout plan, and a vehicle radiation emission test is carried out. A risk assessment is performed on the test data, and then the EE architecture engineer, wiring harness designer, and hardware designer are jointly analyzed and rectified to the risk points, thereby forming a guiding case for the design, and avoiding the risk of electromagnetic compatibility failure of the vehicle caused by unreasonable vehicle grounding in the early stage of design.

[0074] It should be understood that, although the various steps in the flowcharts involved in the above-mentioned embodiments are displayed in sequence according to the indication of the arrows, these steps are not necessarily executed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and these steps can be executed in other orders. Moreover, at least a part of the steps in the flowcharts involved in the above-mentioned embodiments can include multiple steps or multiple stages, and these steps or stages are not necessarily executed at the same time, but can be executed at different times, and the execution order of these steps or stages is not necessarily to be carried out in sequence, but can be executed in turn or alternately with other steps or at least a part of the steps or stages in other steps.

[0075] Based on the same inventive concept, the embodiment of the present application also provides a radiation emission test device for implementing the radiation emission test method involved above. The implementation scheme for solving the problem provided by the device is similar to the implementation scheme recorded in the above method, so the specific limitations in one or more radiation emission test device embodiments provided below can refer to the limitations of the radiation emission test method above, and will not be repeated here.

[0076] In one embodiment, Figure 7 As shown, a radiation emission test device is provided, including: a test module 702, a measurement value acquisition module 704, a judgment module 706 and a rectification module 708, wherein:

[0077] The test module 702 is used to perform a vehicle radiation emission test on the body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and vehicle electronic and electrical components;

[0078] A measurement value acquisition module 704, configured to supply power to the BIW using a power supply network and acquire a measurement value of electromagnetic wave radiation emitted by the BIW;

[0079] A judgment module 706 is used to judge radiation-sensitive electronic and electrical components from the electronic and electrical components of the vehicle according to the electromagnetic wave radiation measurement value when the electromagnetic wave radiation measurement value is greater than a preset limit value;

[0080] The rectification module 708 is used to rectify the grounding point of the radiation-sensitive electronic and electrical component until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0081] The above-mentioned radiation emission test device performs radiation emission test on the body-in-white equipped with signal transmission lines and vehicle electronic and electrical components, and determines the radiation sensitive electronic and electrical components in the vehicle electronic and electrical components through the obtained electromagnetic wave radiation measurement values, and corrects the grounding points of the radiation sensitive electronic and electrical components, so that the grounding points of the radiation sensitive electronic and electrical components can be corrected before the vehicle is assembled, reducing the cost of vehicle development and improving the efficiency of radiation emission testing.

[0082] Each module in the above-mentioned radiation emission test device can be implemented in whole or in part by software, hardware and their combination. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in the form of hardware, or can be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to each of the above modules.

[0083] In one embodiment, a computer device is provided. The computer device may be a server, and its internal structure diagram may be as follows: Figure 8As shown. The computer device includes a processor, a memory and a network interface connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store historical electromagnetic radiation measurement data. The network interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a radiation emission measurement method is implemented.

[0084] Those skilled in the art will understand that Figure 8 The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0085] In one embodiment, a computer device is provided, including a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the following steps when executing the computer program: performing a vehicle radiation emission test on a body in white in an anechoic chamber; the body in white is provided with a signal transmission line and vehicle electronic and electrical components; the body in white is powered by a power supply network, and a measurement value of electromagnetic wave radiation emitted by the body in white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, radiation-sensitive electronic and electrical components are judged from the vehicle electronic and electrical components according to the electromagnetic wave radiation measurement value; and the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0086] In one embodiment, when the processor executes the computer program, the following steps are also implemented: constructing a body-in-white according to the body structure of the target vehicle; arranging the vehicle's electronic and electrical systems and signal transmission lines on the body-in-white according to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, thereby forming a configured body-in-white.

[0087] In one embodiment, when the processor executes the computer program, the following steps are also implemented: using the power supply network to power each electronic and electrical component on the configured white body; using the antenna receiving device to receive the electromagnetic waves emitted by each electronic and electrical component, and respectively calculating the electric field strength of electromagnetic waves of different frequencies.

[0088] In one embodiment, the processor also implements the following steps when executing the computer program: when the electromagnetic wave radiation measurement value is greater than a preset limit value, each of the electronic and electrical components of the whole vehicle is powered off in turn; the electromagnetic wave radiation measurement value measured when each of the electronic and electrical components of the whole vehicle is powered on normally is determined as a first measurement value, and the electromagnetic wave measurement value measured after the target electronic and electrical component is powered off is determined as a second measurement value; if the first measurement value is inconsistent with the second measurement value, the target electronic and electrical component is determined to be a radiation-sensitive electronic and electrical component.

[0089] In one embodiment, when the processor executes the computer program, the following steps are also implemented: the grounding point of the radiation-sensitive electronic and electrical component is adjusted to change the grounding loop of the risk-sensitive electronic and electrical component, until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body in white is less than or equal to the preset limit value, and then the rectification is stopped.

[0090] In one embodiment, when the processor executes the computer program, the following steps are also implemented: when the electromagnetic wave radiation measurement value is less than or equal to the preset limit value, it indicates that the body-in-white radiation emission test has passed.

[0091] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the following steps are implemented: performing a vehicle radiation emission test on a body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and vehicle electronic and electrical components; the body-in-white is powered by a power supply network, and a measurement value of electromagnetic wave radiation emitted by the body-in-white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, radiation-sensitive electronic and electrical components are judged from the vehicle electronic and electrical components based on the electromagnetic wave radiation measurement value; and the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0092] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: constructing a body-in-white according to the body structure of the target vehicle; arranging the vehicle's electronic and electrical systems and signal transmission lines on the body-in-white according to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, thereby forming a configured body-in-white.

[0093] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: using the power supply network to power each electronic and electrical component on the configured white body; using an antenna receiving device to receive electromagnetic waves emitted by each electronic and electrical component, and calculating the electric field strength of electromagnetic waves of different frequencies respectively.

[0094] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: using the power supply network to power each electronic and electrical component on the configured white body; using an antenna receiving device to receive electromagnetic waves emitted by each electronic and electrical component, and calculating the electric field strength of electromagnetic waves of different frequencies respectively.

[0095] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the electromagnetic wave radiation measurement value is greater than a preset limit value, each of the electronic and electrical components of the whole vehicle is powered off in turn; the electromagnetic wave radiation measurement value measured when each of the electronic and electrical components of the whole vehicle is powered on normally is determined as a first measurement value, and the electromagnetic wave measurement value measured after the target electronic and electrical component is powered off is determined as a second measurement value; if the first measurement value is inconsistent with the second measurement value, the target electronic and electrical component is determined to be a radiation-sensitive electronic and electrical component.

[0096] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: The grounding point of the radiation-sensitive electronic and electrical component is adjusted to change the grounding loop of the risk-sensitive electronic and electrical component until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body in white is less than or equal to the preset limit value, and then the rectification is stopped.

[0097] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the electromagnetic wave radiation measurement value is less than or equal to the preset limit value, it indicates that the body-in-white radiation emission test has passed.

[0098] In one embodiment, a computer program product is provided, comprising a computer program, which implements the following steps when executed by a processor: performing a vehicle radiation emission test on a body in white in an anechoic chamber; the body in white is provided with a signal transmission line and vehicle electronic and electrical components; the body in white is powered by a power supply network, and a measurement value of electromagnetic wave radiation emitted by the body in white is obtained; when the electromagnetic wave radiation measurement value is greater than a preset limit value, radiation-sensitive electronic and electrical components are determined from the vehicle electronic and electrical components based on the electromagnetic wave radiation measurement value; and the grounding points of the radiation-sensitive electronic and electrical components are rectified until the electromagnetic wave radiation measurement value is less than or equal to the preset limit value.

[0099] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: constructing a body-in-white according to the body structure of the target vehicle; arranging the vehicle's electronic and electrical systems and signal transmission lines on the body-in-white according to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, thereby forming a configured body-in-white.

[0100] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: using the power supply network to power each electronic and electrical component on the configured white body; using an antenna receiving device to receive electromagnetic waves emitted by each electronic and electrical component, and calculating the electric field strength of electromagnetic waves of different frequencies respectively.

[0101] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the electromagnetic wave radiation measurement value is greater than a preset limit value, each of the electronic and electrical components of the whole vehicle is powered off in turn; the electromagnetic wave radiation measurement value measured when each of the electronic and electrical components of the whole vehicle is powered on normally is determined as a first measurement value, and the electromagnetic wave measurement value measured after the target electronic and electrical component is powered off is determined as a second measurement value; if the first measurement value is inconsistent with the second measurement value, the target electronic and electrical component is determined to be a radiation-sensitive electronic and electrical component.

[0102] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: the grounding point of the radiation-sensitive electronic and electrical component is adjusted to change the grounding loop of the risk-sensitive electronic and electrical component until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body in white is less than or equal to the preset limit value, and then the rectification is stopped.

[0103] In one embodiment, when the computer program is executed by the processor, the following steps are also implemented: when the electromagnetic wave radiation measurement value is less than or equal to the preset limit value, it indicates that the body-in-white radiation emission test has passed.

[0104] It should be noted that the user information (including but not limited to user device information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this application are all information and data authorized by the user or fully authorized by all parties.

[0105] Those skilled in the art can understand that all or part of the processes in the above-mentioned embodiment methods can be completed by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to the memory, database or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The database involved in each embodiment provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include distributed databases based on blockchains, etc., but are not limited to this. The processor involved in each embodiment provided in this application may be a general-purpose processor, a central processing unit, a graphics processor, a digital signal processor, a programmable logic device, a data processing logic device based on quantum computing, etc., but are not limited to this.

[0106] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0107] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the attached claims.

Claims

1. A radiation emission test method, characterized in that: The method comprises: Conducting a vehicle radiation emission test on a body-in-white in an anechoic chamber; the body-in-white is equipped with signal transmission lines and vehicle electronic and electrical components; Powering the BIW using a power supply network and obtaining a measurement value of electromagnetic wave radiation emitted by the BIW; When the electromagnetic wave radiation measurement value is greater than a preset limit value, each of the electronic and electrical components of the vehicle is powered off in turn; Determine the electromagnetic wave radiation measurement value obtained when each of the electronic and electrical components of the vehicle is powered normally as the first measurement value, and determine the electromagnetic wave measurement value obtained after the target electronic and electrical components are powered off as the second measurement value; If the first measurement value is inconsistent with the second measurement value, determining the target electrical and electronic component as a radiation-sensitive electrical and electronic component; The grounding point of the radiation-sensitive electrical and electronic component is adjusted to change the grounding loop of the radiation-sensitive electrical and electronic component until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body-in-white is less than or equal to the preset limit value, and then the rectification is stopped.

2. The method according to claim 1, characterized in that Before the vehicle body in white is subjected to a whole vehicle radiation emission test in an anechoic chamber, the method further comprises: Build the body-in-white according to the body structure of the target vehicle; According to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, the vehicle's electronic and electrical systems and signal transmission lines are arranged on the body-in-white to form a configured body-in-white.

3. The method according to claim 1, characterized in that The electromagnetic wave radiation measurement value includes the electric field strength; the step of supplying power to the body-in-white using the power supply network and obtaining the electromagnetic wave radiation measurement value emitted by the body-in-white includes: Use the power supply network to supply power to the electronic and electrical components on the configured body-in-white; The antenna receiving device is used to receive the electromagnetic waves emitted by each electronic and electrical component, and the electric field strength of electromagnetic waves of different frequencies is calculated respectively.

4. The method according to claim 1, characterized in that The method further includes: when the electromagnetic wave radiation measurement value is less than or equal to the preset limit value, it indicates that the body-in-white radiation emission test has passed.

5. A radiation emission test device, characterized in that: The device comprises: A test module, used to perform a vehicle radiation emission test on the body-in-white in an anechoic chamber; the body-in-white is equipped with a signal transmission line and vehicle electronic and electrical components; A measurement value acquisition module, used to supply power to the BIW using a power supply network and acquire a measurement value of electromagnetic wave radiation emitted by the BIW; A judgment module, configured to, when the electromagnetic wave radiation measurement value is greater than a preset limit value, sequentially power off each of the vehicle's electronic and electrical components; Determine the electromagnetic wave radiation measurement value obtained when each of the electronic and electrical components of the vehicle is powered normally as the first measurement value, and determine the electromagnetic wave measurement value obtained after the target electronic and electrical components are powered off as the second measurement value; If the first measurement value is inconsistent with the second measurement value, determining the target electrical and electronic component as a radiation-sensitive electrical and electronic component; The rectification module is used to change the grounding loop of the radiation-sensitive electronic and electrical components by adjusting the grounding point of the radiation-sensitive electronic and electrical components until the electromagnetic wave radiation measurement value obtained by measuring the adjusted body-in-white is less than or equal to the preset limit value, and then stop the rectification.

6. The device according to claim 5, characterized in that Before the vehicle body in white is subjected to the whole vehicle radiation emission test in the anechoic chamber, the test module is also used to: Build the body-in-white according to the body structure of the target vehicle; According to the actual positions and connection relationships of the electronic and electrical components on the target vehicle, the vehicle's electronic and electrical systems and signal transmission lines are arranged on the body-in-white to form a configured body-in-white.

7. The device according to claim 5, characterized in that The electromagnetic wave radiation measurement value includes the electric field strength; the measurement value acquisition module is also used for: Use the power supply network to supply power to the electronic and electrical components on the configured body-in-white; The antenna receiving device is used to receive the electromagnetic waves emitted by each electronic and electrical component, and the electric field strength of electromagnetic waves of different frequencies is calculated respectively.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method according to any one of claims 1 to 4 are implemented.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 4 are implemented.

Images