Intelligent automobile electromagnetic radiation evaluation method and related device

Abstract

The invention belongs to the technical field of electromagnetic environment monitoring, and discloses an intelligent automobile electromagnetic radiation evaluation method and a related device, and the method comprises the steps: obtaining an electromagnetic index value of each monitoring point in an intelligent automobile under each radiation source, and obtaining a comprehensive electromagnetic index value of each monitoring point in each frequency band according to the electromagnetic index value of each monitoring point under each radiation source; wherein the electromagnetic index values comprise electric field intensity, magnetic field intensity and energy flow density; and obtaining the electromagnetic tolerance time of each monitoring point according to the comprehensive electromagnetic index value of each monitoring point in each frequency band in combination with the electromagnetic index value safety limit value of each frequency band based on the electromagnetic safety constraint. Based on introduction of electromagnetic tolerance time, factors of radiation frequency, intensity and duration are comprehensively considered for a plurality of radiation sources in different frequency bands in the intelligent automobile, the comprehensiveness and accuracy of evaluation are effectively improved, the method can be flexibly applied to a complex electromagnetic environment of the intelligent automobile, and a scientific basis is provided for electromagnetic safety protection of the intelligent automobile.

Description

Technical Field

[0001] The present invention belongs to the technical field of electromagnetic environment monitoring, and relates to an electromagnetic radiation evaluation method for intelligent vehicles and related devices. Background Art

[0002] With the rapid development of modern technology, automotive electronics technology and wireless communication technology have been widely applied, and the automotive industry is moving towards a new era of high intelligence and informatization. However, behind this technological progress, there are also problems of increasingly complex electromagnetic environments in intelligent vehicles. The continuous increase in various electronic devices inside and outside intelligent vehicles, such as vehicle-mounted radars, wireless communication modules, navigation systems, autonomous driving sensors, and charging systems, has significantly increased the radiation intensity and frequency of the electromagnetic environment in intelligent vehicles, forming a complex and variable electromagnetic field. Although electromagnetic radiation is an inevitable part of modern intelligent vehicles, its potential health risks have attracted wide attention. Research shows that long-term exposure to high-intensity or specific-frequency electromagnetic radiation may have certain effects on systems such as the human nervous system and immune system, and even cause chronic diseases. These potential risks have prompted relevant industries and researchers to pay more attention to the impact of electromagnetic radiation on the human body and put forward higher requirements for the electromagnetic safety assessment of the electromagnetic environment in intelligent vehicles.

[0003] Electromagnetic safety assessment is to detect, analyze, and evaluate the intensity and distribution of electromagnetic radiation in the electromagnetic environment through scientific methods, so as to further judge its potential impact on human health and equipment functions. By identifying potential safety hazards of electromagnetic radiation, ensuring that relevant equipment and facilities meet national or international electromagnetic radiation safety standards, its core value lies in protecting public health and providing a scientific basis for the government and enterprises to formulate reasonable electromagnetic environment management policies, thus promoting the construction of a green and healthy living and working environment. Existing electromagnetic assessment methods mainly focus on the analysis and verification of electromagnetic field exposure limits. Relevant standards such as the safety limits proposed by the International Commission on Non-Ionizing Radiation Protection provide references for the electromagnetic exposure levels of single frequency bands.

[0004] However, in practical applications, since the electromagnetic environment of intelligent vehicles is composed of the superposition of electromagnetic waves radiated by various radiation sources such as automotive motors, automotive wiring harnesses, DC / DC converters, and vehicle-mounted antennas, the frequency distribution range of the radiation sources is relatively wide, covering 50~5×10 5Frequency bands such as Hz, 2.4 - 5.9 GHz, and 76 - 79 GHz overall cover a frequency range from dozens of hertz to thousands of megahertz. Therefore, even if a single radiation source meets the radiation safety dose standard, it does not necessarily mean that the electromagnetic environment of the entire vehicle is safe and reliable. Thus, when evaluating the electromagnetic radiation safety of an intelligent vehicle's electromagnetic environment, one should not analyze it in isolation from a certain electronic device or a certain frequency point, but rather consider the result of the superposition of its comprehensive field strength; in addition, the impact of a radiation source on human health is not only related to the electromagnetic exposure intensity but also to the duration of exposure, that is, the time cumulative amount under the radiation source irradiation intensity. Therefore, efforts should be made to develop a more comprehensive and intuitive evaluation method, comprehensively considering the complex composition of multi - band electromagnetic fields, in order to improve the safety protection level of the increasingly complex electromagnetic environment of the entire intelligent vehicle. Summary of the Invention

[0005] The objective of the present invention is to overcome the shortcomings of the above - mentioned existing technologies and provide an electromagnetic radiation evaluation method and related device for an intelligent vehicle.

[0006] To achieve the above objective, the present invention adopts the following technical solutions:

[0007] In the first aspect of the present invention, an electromagnetic radiation evaluation method for an intelligent vehicle is provided, including: obtaining the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source, and obtaining the comprehensive electromagnetic index values of each monitoring point in each frequency band according to the electromagnetic index values of each monitoring point under each radiation source; wherein, the electromagnetic index values include electric field strength, magnetic field strength, and energy flow density; based on the electromagnetic safety constraint, obtaining the electromagnetic tolerance time of each monitoring point according to the comprehensive electromagnetic index values of each monitoring point in each frequency band and the safety limit values of the electromagnetic index values of each frequency band.

[0008] Optionally, the obtaining the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source includes: obtaining the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source by means of actual testing or simulation numerical calculation.

[0009] Optionally, the obtaining the comprehensive electromagnetic index values of each monitoring point in each frequency band according to the electromagnetic index values of each monitoring point under each radiation source includes: obtaining the comprehensive electromagnetic index values of each monitoring point in each frequency band through the following formula:

[0010]

[0011] wherein, Π i represents the electromagnetic index value of the current monitoring point under the i - th radiation source in the current frequency band, Π net represents the comprehensive electromagnetic index value of the current monitoring point in the current frequency band, and n represents the number of radiation sources of the current monitoring point in the current frequency band.

[0012] Optionally, the electromagnetic safety constraint is:

[0013]

[0014] Among them, E net,j represents the comprehensive electric field strength of the j-th frequency band, H net,l represents the comprehensive magnetic field strength of the l-th frequency band, S net,k represents the comprehensive energy flux density of the k-th frequency band, m represents the number of frequency bands of the electric field, p represents the number of frequency bands of the magnetic field, s represents the number of frequency bands of the energy flux density, and E lim,j represents the electric field safety limit value of the j-th frequency band, H lim,l represents the magnetic field safety limit value of the l-th frequency band, S lim,k represents the energy flux density safety limit value of the k-th frequency band.

[0015] Optionally, the obtaining of the electromagnetic tolerance time of each monitoring point based on the electromagnetic safety constraint by combining the comprehensive electromagnetic index values of each monitoring point in each frequency band with the electromagnetic index value safety limits of each frequency band includes:

[0016] Obtaining the electromagnetic tolerance time of each monitoring point through the following formula:

[0017]

[0018] Among them, represents the electric field exposure energy limit value of the j-th frequency band, represents the magnetic field exposure energy limit value of the l-th frequency band, Ψ Slim,k = 24·S lim,k represents the energy flux density exposure energy limit value of the k-th frequency band.

[0019] Optionally, it further includes: obtaining the electromagnetic tolerance time distribution matrix of the intelligent vehicle according to the maximum electromagnetic tolerance time of each monitoring point, and based on the electromagnetic tolerance time distribution matrix of the intelligent vehicle, drawing a risk degree distribution map and visualizing it.

[0020] Optionally, after drawing the risk degree distribution map, it further includes: performing interpolation processing on the risk degree distribution map, and visualizing the interpolated risk degree distribution map.

[0021] In the second aspect of the present invention, an intelligent vehicle electromagnetic radiation evaluation system is provided, including: a data acquisition module, configured to acquire the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source, and obtain the comprehensive electromagnetic index values of each monitoring point in each frequency band according to the electromagnetic index values of each monitoring point under each radiation source; among them, the electromagnetic index values include electric field strength, magnetic field strength, and energy flux density; a time calculation module, configured to obtain the electromagnetic tolerance time of each monitoring point based on the electromagnetic safety constraint by combining the comprehensive electromagnetic index values of each monitoring point in each frequency band with the electromagnetic index value safety limits of each frequency band.

[0022] In the third aspect of the present invention, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, the above-mentioned electromagnetic radiation evaluation method for intelligent vehicles is implemented.

[0023] In the fourth aspect of the present invention, a computer-readable storage medium is provided. The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the above-mentioned electromagnetic radiation evaluation method for intelligent vehicles is implemented.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In the electromagnetic radiation evaluation method for intelligent vehicles of the present invention, in the face of the complex electromagnetic environment composition of intelligent vehicles, first, the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source are determined. Then, the electromagnetic index values in the same frequency band are standardized to determine the comprehensive electromagnetic index value of the superimposed electromagnetic field in the frequency band. Furthermore, on this basis, combined with the safety limits and electromagnetic safety constraints of the electromagnetic index values in each frequency band, the electromagnetic tolerance time of each monitoring point in the intelligent vehicle under the complex electromagnetic environment is analyzed and calculated, realizing the accurate quantitative evaluation of the electromagnetic radiation of intelligent vehicles. Based on the introduction of the electromagnetic tolerance time, in the face of multiple radiation sources in different frequency bands in the intelligent vehicle, the factors of radiation frequency, intensity, and duration are comprehensively considered, effectively improving the comprehensiveness and accuracy of the evaluation, and can be flexibly applied to the complex electromagnetic environment of intelligent vehicles, providing a scientific basis for the electromagnetic safety protection of intelligent vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a flowchart of the electromagnetic radiation evaluation method for intelligent vehicles according to an embodiment of the present invention.

[0027] Figure 2 It is a risk distribution diagram under certain example conditions according to an embodiment of the present invention.

[0028] Figure 3 It is a structural block diagram of the electromagnetic radiation evaluation system for intelligent vehicles according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] It should be noted that the terms "first", "second", etc. in the description, claims and the above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0031] The present invention will be further described in detail below with reference to the drawings:

[0032] See Figure 1 , in an embodiment of the present invention, a method for evaluating electromagnetic radiation of an intelligent vehicle is provided, and by introducing an electromagnetic tolerance time, a quantitative and accurate evaluation of the electromagnetic radiation of the intelligent vehicle is realized.

[0033] Specifically, the method for evaluating electromagnetic radiation of the intelligent vehicle of the present invention includes the following steps:

[0034] S1: Obtain the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source, and based on the electromagnetic index values of each monitoring point under each radiation source, obtain the comprehensive electromagnetic index values of each monitoring point in each frequency band; wherein, the electromagnetic index values include electric field strength, magnetic field strength and energy flux density.

[0035] S2: Based on the comprehensive electromagnetic index values of each monitoring point in each frequency band, combined with the safety limit values of the electromagnetic index values of each frequency band, and based on electromagnetic safety constraints, obtain the electromagnetic tolerance time of each monitoring point.

[0036] The method for evaluating electromagnetic radiation of the intelligent vehicle of the present invention, in the face of the complex electromagnetic environment composition of the intelligent vehicle, first determines the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source, then standardizes the electromagnetic index values of the same frequency band, determines the comprehensive electromagnetic index values of the superimposed electromagnetic fields in the frequency band, and then on this basis, combined with the safety limit values of the electromagnetic index values of each frequency band and electromagnetic safety constraints, analyzes and calculates the electromagnetic tolerance time of each monitoring point in the intelligent vehicle in the complex electromagnetic environment, realizing an accurate quantitative evaluation of the electromagnetic radiation of the intelligent vehicle. Based on the introduction of the electromagnetic tolerance time, in the face of multiple radiation sources in different frequency bands in the intelligent vehicle, the factors of radiation frequency, intensity and duration are comprehensively considered, effectively improving the comprehensiveness and accuracy of the evaluation, and can be flexibly applied to the complex electromagnetic environment of the intelligent vehicle, providing a scientific basis for the electromagnetic safety protection of the intelligent vehicle.

[0037] Explanatory, when the electromagnetic field radiated by the radiation source in the intelligent vehicle interacts with the human body, the energy of the electromagnetic field will be absorbed by the human body. This energy is the cumulative effect of the electromagnetic field intensity at a specific position over time. Since the operating frequencies of the radiation sources in the intelligent vehicle vary, it is necessary to combine the electromagnetic exposure safety standards to determine the maximum electric field intensity or magnetic field intensity of each radiation source in the vehicle, so as to calculate the maximum electromagnetic exposure energy under a single radiation source.

[0038] Specifically, the control limit of the electromagnetic exposure energy of the electromagnetic field is required according to 24 hours a day, that is, the electromagnetic exposure energy of the electromagnetic field is accumulated in units of 24 hours. The control limit of the electromagnetic exposure energy under the electromagnetic field radiation of a single radiation source is:

[0039]

[0040] Among them, Π lim is the electromagnetic index value allowed under public exposure conditions, and Ψ lim is the control limit of the electromagnetic exposure energy corresponding to the electromagnetic index value under the electromagnetic field radiation of a single radiation source.

[0041] For the electric field intensity, Ψ Elim is the control limit of the electromagnetic exposure energy of the electric field intensity, with the unit of (A / m) 2 ·h. For the magnetic field intensity, Ψ Hlim is the control limit of the electromagnetic exposure energy of the magnetic field intensity, with the unit of (V / m) 2 ·h.

[0042] Through further calculation, the electromagnetic tolerance time under the action of a single radiation source can be obtained:

[0043]

[0044] Among them, Π meas is the actual electromagnetic index value of the current radiation source, and t is the electromagnetic tolerance time corresponding to the electromagnetic index value under the current radiation source. The electromagnetic tolerance time can be expressed either by the electric field intensity or by the magnetic field intensity. However, in the face of a complex electromagnetic environment, the final confirmation of the electromagnetic tolerance time needs to comprehensively consider the electric field intensity, magnetic field intensity, and energy flux density.

[0045] In a possible implementation manner, the obtaining of the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source includes: obtaining the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source by means of actual testing or simulation numerical calculation.

[0046] Explanatory, through actual tests or simulation numerical calculations, obtain the electromagnetic index values of each monitoring point in the intelligent vehicle under the working conditions of the radiation source. This process includes accurately measuring or numerically simulating the electromagnetic fields at different monitoring points in the intelligent vehicle to accurately reflect the in-vehicle electromagnetic field distribution results of the radiation source in actual use. Among them, the energy flux density can be obtained by multiplying the electric field strength and the magnetic field strength.

[0047] Exemplarily, for the actual test method, first arrange a series of electromagnetic field monitoring devices inside the intelligent vehicle, such as electric field probes and magnetic field probes, etc., to ensure that all key monitoring points can be covered. Then start the vehicle and simulate various working conditions during actual driving, such as acceleration, deceleration, and turning, etc., and at the same time turn on various in-vehicle electronic devices, such as navigation systems, audio systems, and wireless communication devices, etc., as radiation sources. The electromagnetic index values of each monitoring point under the action of different radiation sources, such as electric field strength and magnetic field strength, etc., are recorded in real time by the monitoring devices to provide data support for subsequent analysis and evaluation.

[0048] For the simulation numerical calculation method, an electromagnetic simulation software can be used to establish a detailed electromagnetic model of the intelligent vehicle, including body structure, interior materials, and electronic device layout, etc. In the model, the working states and emission characteristics of different radiation sources can be simulated, such as electromagnetic interference of motors, charge and discharge processes of batteries, and signal transmission of electronic control units, etc. Through simulation calculations, the electromagnetic index values of each monitoring point under the action of different radiation sources can be obtained and compared and verified with the actual test results. The simulation numerical calculation method has the advantages of low cost, high efficiency, good repeatability, etc., and can provide strong support for the electromagnetic compatibility design and optimization of intelligent vehicles.

[0049] In a possible implementation manner, obtaining the comprehensive electromagnetic index values of each monitoring point in each frequency band according to the electromagnetic index values of each monitoring point under each radiation source includes: obtaining the comprehensive electromagnetic index values of each monitoring point in each frequency band through the following formula:

[0050]

[0051] Among them, Π i represents the electromagnetic index value of the current monitoring point under the i-th radiation source in the current frequency band, Π net represents the comprehensive electromagnetic index value of the current monitoring point in the current frequency band, and n represents the number of radiation sources of the current monitoring point in the current frequency band. The electromagnetic index value can be the electric field strength or the magnetic field strength.

[0052] Explanatory, conduct in-depth characteristic analysis of the electromagnetic waves emitted by the radiation source, comprehensively consider the electromagnetic field distribution characteristics of different radiation sources, and perform superposition processing on them in a wide frequency band range to accurately evaluate the field strength change law and superposition effect in a complex electromagnetic environment.

[0053] Exemplarily, if the amplitudes of two electromagnetic waves are A 1 and A 2 , and the phases are and They are represented by complex amplitudes as:

[0054]

[0055] where, is the complex amplitude of the first electromagnetic wave, is the complex amplitude of the second electromagnetic wave.

[0056] Superposition in the same direction gives:

[0057]

[0058] where, is the complex amplitude of the superimposed electromagnetic wave, is the complex conjugate of the complex amplitude of the superimposed electromagnetic wave.

[0059] Therefore, the square of the amplitude after superposition can be expressed as:

[0060]

[0061] Since the intensity of an electromagnetic wave is proportional to the square of the electric field amplitude, generally, when two electromagnetic waves are superimposed, the intensity of the combined electromagnetic wave not only includes the intensities of the component electromagnetic waves but is also affected by the interference term and usually does not equal the simple sum of the intensities of the component electromagnetic waves. Therefore, it is necessary to calculate the time-averaged intensity of the combined electromagnetic wave

[0062]

[0063] Since the phases of the electromagnetic waves radiated by different radiation sources are independent and randomly variable and go through all possible values from 0 to 2π multiple times within the observation time with equal probability, that is:

[0064]

[0065] Therefore:

[0066]

[0067] When there are multiple radiation sources radiating different electromagnetic waves, the corresponding total electromagnetic field intensity can be analogously obtained. Therefore, for the superimposed electromagnetic fields with the same frequency band but radiated by different radiation sources:

[0068] In addition, Π net needs to satisfy the following limit conditions:

[0069] Combined with the specific distribution of the electromagnetic field inside the intelligent vehicle, and on the basis of meeting the limit conditions, according to the result of the comprehensive superposition effect of the electromagnetic field, calculate the electromagnetic exposure energy control limit of the radiation source in the same frequency band, and calculate the electromagnetic tolerance time under the public exposure condition through the following formula:

[0070] In a possible implementation manner, the electromagnetic safety constraint is:

[0071]

[0072] where, E net,j represents the comprehensive electric field strength of the j-th frequency band, H net,l represents the comprehensive magnetic field strength of the l-th frequency band, S net,k represents the comprehensive energy flux density of the k-th frequency band, m represents the number of frequency bands of the electric field, p represents the number of frequency bands of the magnetic field, s represents the number of frequency bands of the energy flux density, E lim,j represents the electric field safety limit of the j-th frequency band, H lim,l represents the magnetic field safety limit of the l-th frequency band, S lim,k represents the energy flux density safety limit of the k-th frequency band.

[0073] Explanatorily, when calculating the electromagnetic tolerance time of the complex electromagnetic field inside the intelligent vehicle, it is necessary to consider that the electromagnetic field distribution inside the intelligent vehicle is composed of the superposition of electromagnetic fields radiated by different frequency bands and different radiation sources.

[0074] The components of the complex electromagnetic field inside the intelligent vehicle should meet the electromagnetic safety constraint:

[0075]

[0076] In a possible implementation manner, the obtaining of the electromagnetic tolerance time of each monitoring point based on the electromagnetic safety constraint by combining the comprehensive electromagnetic index values of each monitoring point in each frequency band with the electromagnetic index value safety limits of each frequency band includes: obtaining the electromagnetic tolerance time of each monitoring point through the following formula:

[0077]

[0078] where, represents the electric field exposure energy limit of the j-th frequency band, represents the magnetic field exposure energy limit of the l-th frequency band, Ψ Slim,k = 24·S lim,k represents the energy flux density exposure energy limit of the k-th frequency band.

[0079] Explanatory, based on electromagnetic safety constraints, the actual electromagnetic exposure energy is related to the electromagnetic exposure energy control limit, thus leading to the electromagnetic tolerance time:

[0080]

[0081] To maximize the solution of the electromagnetic tolerance time, set the left side of the above formula to 1 and perform equivalent processing with the expression of the electromagnetic tolerance time, and the result can be obtained:

[0082]

[0083] Combined with the comprehensive electromagnetic index values of each monitoring point in the intelligent vehicle at each frequency band and the safety limit values of the electromagnetic index values at each frequency band, solve the above formula to obtain the electromagnetic tolerance time of each monitoring point in the intelligent vehicle.

[0084] In a possible implementation manner, the intelligent vehicle electromagnetic radiation evaluation method further includes: obtaining an electromagnetic tolerance time distribution matrix of the intelligent vehicle according to the maximum electromagnetic tolerance time of each monitoring point, and based on the electromagnetic tolerance time distribution matrix of the intelligent vehicle, drawing a risk degree distribution map and visualizing it.

[0085] Explanatory, the electromagnetic tolerance time distribution matrix contains the electromagnetic tolerance time at each position in the space of the intelligent vehicle electromagnetic field, which is the data basis for drawing the risk degree distribution map. Based on this, the risk degree distribution map can be preliminarily drawn in an intuitive way to show the risk degree distribution of the intelligent vehicle electromagnetic field in the space.

[0086] Exemplary, see Figure 2 , select a suitable data visualization tool and technology. According to the characteristics of the data and the display requirements, two-dimensional or three-dimensional graphics can be considered to represent the risk degree distribution of the electromagnetic field. For example, use color gradient to represent the magnitude of different electromagnetic tolerance time values. The change of color from cold tone (such as blue) to warm tone (such as red) can intuitively reflect the increase of the electromagnetic field risk degree. By observing the color of the graph, the risk degree distribution of the intelligent vehicle electromagnetic field in the space can be preliminarily judged. This helps to timely discover potential electromagnetic safety problems and provides strong support for subsequent electromagnetic compatibility design and optimization.

[0087] The intelligent vehicle electromagnetic radiation evaluation method realizes intuitive visual analysis by drawing the risk degree distribution map, which is convenient for quickly identifying the dangerous areas of the intelligent vehicle electromagnetic environment.

[0088] In a possible implementation manner, after drawing the risk degree distribution map, it further includes: performing interpolation processing on the risk degree distribution map, obtaining the interpolated risk degree distribution map and visualizing it.

[0089] Explanatory, since the image directly drawn from the electromagnetic tolerance time distribution matrix may have low pixels and cannot clearly display details, interpolation processing is performed to improve the resolution of the image and optimize the visual effect, so as to more accurately present the changing trend of the electromagnetic tolerance time inside the vehicle. Finally, by combining the extracted dangerous area map with the actual distribution of the research object, accurate visual analysis of the electromagnetic environment of intelligent vehicles is achieved.

[0090] Exemplarily, using mathematical interpolation algorithms such as linear interpolation method and spline interpolation method, etc., the unknown values between adjacent data points are calculated to fill the entire data grid. This process enables the generation of a more continuous and smooth danger degree distribution map based on limited measurement or calculation data to more accurately display the distribution of the electromagnetic field of intelligent vehicles in space.

[0091] The following is an apparatus embodiment of the present invention, which can be used to execute the method embodiment of the present invention. For the details not disclosed in the apparatus embodiment, please refer to the method embodiment of the present invention.

[0092] See Figure 3 , in another embodiment of the present invention, an intelligent vehicle electromagnetic radiation evaluation system is provided, which can be used to implement the above-mentioned intelligent vehicle electromagnetic radiation evaluation method. Specifically, the intelligent vehicle electromagnetic radiation evaluation system includes a data acquisition module and a time calculation module.

[0093] Among them, the data acquisition module is used to obtain the electromagnetic index values of each monitoring point in the intelligent vehicle under each radiation source, and obtain the comprehensive electromagnetic index values of each monitoring point in each frequency band according to the electromagnetic index values of each monitoring point under each radiation source; among them, the electromagnetic index values include electric field strength, magnetic field strength, and energy flux density; the time calculation module is used to obtain the electromagnetic tolerance time of each monitoring point based on the electromagnetic safety constraint by combining the comprehensive electromagnetic index values of each monitoring point in each frequency band with the safety limit values of the electromagnetic index values of each frequency band.

[0094] All the relevant contents of each step involved in the embodiment of the above-mentioned intelligent vehicle electromagnetic radiation evaluation method can be cited in the function description of the corresponding functional modules of the intelligent vehicle electromagnetic radiation evaluation system in the embodiment of the present invention, and will not be elaborated here.

[0095] The division of modules in the embodiments of the present invention is illustrative, only a logical function division. In actual implementation, there may be other division methods. In addition, in each embodiment of the present invention, each functional module can be integrated in a processor, or can exist separately physically, or two or more modules can be integrated in one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0096] In another embodiment of the present invention, a computer device is provided. The computer device includes a processor and a memory. The memory is used to store a computer program, and the computer program includes program instructions. The processor is used to execute the program instructions stored in the computer storage medium. The processor may be a Central Processing Unit (CPU), or may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field-Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. It is the computing core and control core of the terminal, and is suitable for implementing one or more instructions. Specifically, it is suitable for loading and executing one or more instructions in the computer storage medium to implement the corresponding method flow or corresponding function. The processor described in the embodiment of the present invention can be used for the operation of the intelligent vehicle electromagnetic radiation evaluation method.

[0097] In another embodiment of the present invention, a storage medium is also provided, specifically a computer-readable storage medium (Memory). The computer-readable storage medium is a memory device in a computer device and is used to store programs and data. It can be understood that the computer-readable storage medium here can include both the built-in storage medium in the computer device and, of course, the extended storage medium supported by the computer device. The computer-readable storage medium provides a storage space, and the operating system of the terminal is stored in this storage space. And, one or more instructions suitable for being loaded and executed by the processor are also stored in this storage space. These instructions can be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here can be a high-speed RAM memory or a non-volatile memory, such as at least one disk memory. The one or more instructions stored in the computer-readable storage medium can be loaded and executed by the processor to implement the corresponding steps of the intelligent vehicle electromagnetic radiation evaluation method in the above embodiments.

[0098] Those skilled in the art should understand that the embodiments of the present invention can be provided as a method, a system, or a computer program product. Therefore, the present invention can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present invention can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) that contain computer-usable program code.

[0099] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each flow and / or block in the flowchart and / or block diagram, and the combination of flows and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices produce means for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0100] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing devices to work in a specific manner, such that the instructions stored in the computer-readable memory produce a manufactured article including instruction means that implement the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0101] These computer program instructions can also be loaded onto a computer or other programmable data processing devices, such that a series of operation steps are executed on the computer or other programmable devices to generate a computer-implemented process, so that the instructions executed on the computer or other programmable devices provide steps for implementing the functions specified in Figure 1 one flow or multiple flows and / or blocks Figure 1 one block or multiple blocks.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: still can modify the specific implementation manners of the present invention or make equivalent replacements, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A method for evaluating electromagnetic radiation of a smart car, characterized in that: include: Obtain the electromagnetic index value of each monitoring point in the smart car under each radiation source, and obtain the comprehensive electromagnetic index value of each monitoring point in each frequency band according to the electromagnetic index value of each monitoring point under each radiation source; wherein the electromagnetic index value includes electric field intensity, magnetic field intensity and energy flow density; According to the comprehensive electromagnetic index value of each monitoring point in each frequency band, combined with the safety limit of the electromagnetic index value of each frequency band, based on electromagnetic safety constraints, the electromagnetic tolerance time of each monitoring point is obtained.

2. The intelligent vehicle electromagnetic radiation assessment method according to claim 1, characterized in that: The obtaining of the electromagnetic index value of each monitoring point in the smart car under each radiation source includes: obtaining the electromagnetic index value of each monitoring point in the smart car under each radiation source by actual testing or simulation numerical calculation.

3. The intelligent vehicle electromagnetic radiation assessment method according to claim 1, characterized in that: The step of obtaining the comprehensive electromagnetic index value of each monitoring point in each frequency band according to the electromagnetic index value of each monitoring point under each radiation source includes: obtaining the comprehensive electromagnetic index value of each monitoring point in each frequency band by the following formula: Among them, i Indicates the electromagnetic index value of the current monitoring point under the i-th radiation source in the current frequency band, Π net It indicates the comprehensive electromagnetic index value of the current monitoring point in the current frequency band, and n indicates the number of radiation sources at the current monitoring point in the current frequency band.

4. The intelligent vehicle electromagnetic radiation assessment method according to claim 1, characterized in that: The electromagnetic safety constraints are: Among them, E net,j represents the comprehensive electric field strength of the jth frequency band, H net,l represents the comprehensive magnetic field strength of the lth frequency band, S net,k represents the comprehensive energy flow density of the kth frequency band, m represents the number of frequency bands of the electric field, p represents the number of frequency bands of the magnetic field, s represents the number of frequency bands of the energy flow density, E lim,j represents the electric field safety limit of the jth frequency band, H lim,l Indicates the magnetic field safety limit of the lth frequency band, S lim,k Represents the safety limit of energy flow density in the kth frequency band.

5. The intelligent vehicle electromagnetic radiation assessment method according to claim 4, characterized in that: The electromagnetic tolerance time of each monitoring point is obtained based on the comprehensive electromagnetic index value of each monitoring point in each frequency band, combined with the electromagnetic index value safety limit of each frequency band, and based on electromagnetic safety constraints, including: The electromagnetic tolerance time of each monitoring point is obtained by the following formula: in, represents the electric field exposure energy limit of the jth frequency band, Indicates the magnetic field exposure energy limit for the lth frequency band, Represents the energy flux density exposure energy limit of the kth frequency band.

6. The intelligent vehicle electromagnetic radiation assessment method according to claim 1, characterized in that: Also includes: According to the maximum electromagnetic tolerance time of each monitoring point, the electromagnetic tolerance time distribution matrix of the smart car is obtained, and based on the electromagnetic tolerance time distribution matrix of the smart car, a hazard distribution map is drawn and visualized.

7. The intelligent vehicle electromagnetic radiation assessment method according to claim 6, characterized in that: After drawing the hazard distribution map, the method further includes: interpolating the hazard distribution map to obtain the hazard distribution map after interpolation and visually displaying it.

8. An intelligent automobile electromagnetic radiation assessment system, characterized in that: include: The data acquisition module is used to obtain the electromagnetic index value of each monitoring point in the smart car under each radiation source, and obtain the comprehensive electromagnetic index value of each monitoring point in each frequency band according to the electromagnetic index value of each monitoring point under each radiation source; wherein the electromagnetic index value includes electric field intensity, magnetic field intensity and energy flow density; The time calculation module is used to obtain the electromagnetic tolerance time of each monitoring point based on the comprehensive electromagnetic index value of each monitoring point in each frequency band, combined with the electromagnetic index value safety limit of each frequency band, and based on electromagnetic safety constraints.

9. A computer device 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 computer program, the intelligent vehicle electromagnetic radiation assessment method as described in any one of claims 1 to 7 is implemented.

10. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the intelligent vehicle electromagnetic radiation assessment method as claimed in any one of claims 1 to 7 is implemented.

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