An electromagnetic radiation environment assessment method and system based on data analysis

Abstract

This application relates to the technical field of electromagnetic radiation environment assessment, and in particular to an electromagnetic radiation environment assessment method and system based on data analysis. The steps of the method include: obtaining the inventory base station data, candidate base station data, and regional personnel spatio-temporal distribution data within the environmental assessment area; analyzing the signal strength distribution of terminal devices within the environmental assessment area to determine the positions of terminal devices with low signal strength; determining the candidate base station layout positions to obtain a set of candidate base station layout positions; analyzing the electromagnetic radiation superposition situation between candidate base stations and inventory base stations to obtain an electromagnetic radiation superposition area; analyzing the personnel distribution situation within the electromagnetic radiation coverage area and electromagnetic radiation superposition area of candidate base stations; and comprehensively determining the optimal base station layout position within the environmental assessment area based on the personnel distribution situation. This application reduces the impact of electromagnetic radiation on the public while ensuring the signal coverage quality by analyzing the electromagnetic radiation superposition situation and personnel distribution characteristics within the environmental assessment area.

Description

Technical Field

[0001] This application relates to the technical field of electromagnetic radiation environment assessment, and particularly to a method and system for electromagnetic radiation environment assessment based on data analysis. Background Art

[0002] As an important communication network infrastructure, communication base stations determine the coverage area and network quality of the communication network, and are the key factors to improve the supply capacity of information and communication services. In order to ensure the coverage area and quality of the communication network, the number and density of communication base stations built by operators are gradually increasing. However, the construction and operation of communication base stations will inevitably generate electromagnetic radiation.

[0003] Electromagnetic radiation is a physical phenomenon, which is the phenomenon that energy is emitted into space in the form of electromagnetic waves, and is the propagation of an energy flow formed by the interaction of a changing electric field and a changing magnetic field. Therefore, with the gradual increase in the number and density of communication base stations, the impact of electromagnetic radiation generated by communication base stations on human health has attracted increasing widespread attention.

[0004] The existing base station site selection and planning methods mainly rely on empirical rules and signal coverage models, lacking refined assessment of the electromagnetic radiation environment, and having the following deficiencies:

[0005] (1) When conducting base station site selection and planning, the existing technology often focuses on improving signal coverage quality and network capacity, without fully considering the electromagnetic radiation superposition effect between new base stations and existing base stations, resulting in too high electromagnetic radiation levels in local areas;

[0006] (2) When conducting base station site selection and planning, the existing technology does not fully consider the spatio-temporal distribution of personnel in the area, resulting in inappropriate selection of base station site positions, making the high electromagnetic radiation area overlap with the densely populated area, increasing the risk of personnel's electromagnetic radiation exposure.

[0007] In view of the above technical problems, this application proposes a method and system for electromagnetic radiation environment assessment based on data analysis. Summary of the Invention

[0008] In order to overcome the defects and deficiencies existing in the prior art, this application provides a method and system for electromagnetic radiation environment assessment based on data analysis. By analyzing the electromagnetic radiation superposition situation and personnel distribution characteristics in the environment assessment area, while ensuring the signal coverage quality, it effectively reduces the impact of electromagnetic radiation on the public.

[0009] To achieve the above objective, a method for electromagnetic radiation environment assessment based on data analysis according to the first aspect embodiment of this application includes the following steps:

[0010] Obtain the existing base station data, candidate base station data, and regional personnel spatio-temporal distribution data within the environmental assessment area;

[0011] Analyze the signal strength distribution of terminal devices within the environmental assessment area through the existing base station data, and determine the positions of terminal devices with low signal strength;

[0012] Determine the candidate base station layout positions based on the distribution of the positions of terminal devices with low signal strength in combination with the candidate base station data, and obtain a set of candidate base station layout positions;

[0013] Analyze the electromagnetic radiation superposition situation between the candidate base stations and the existing base stations at each candidate base station layout position based on the existing base station data and the candidate base station data, and obtain the electromagnetic radiation superposition area;

[0014] Analyze the personnel distribution situation within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area at each candidate base station layout position based on the regional personnel spatio-temporal distribution data;

[0015] Determine the optimal base station layout position within the environmental assessment area by comprehensively considering the personnel distribution situation within the electromagnetic radiation coverage area and the electromagnetic radiation superposition area of the candidate base stations.

[0016] Optionally, the analysis of the personnel distribution situation within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area includes:

[0017] Obtain the regional personnel spatio-temporal distribution data and the electric field strength distribution data within the environmental assessment area;

[0018] Extract the regional personnel spatio-temporal distribution data and the electric field strength distribution data within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area;

[0019] Count the number of personnel, the average residence duration of personnel, and the average electric field strength within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area at each candidate base station layout position;

[0020] Calculate the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition area respectively through the number of personnel and the average residence duration of personnel;

[0021] Perform weighted summation on the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition area to obtain the electromagnetic radiation influence coefficient of the candidate base stations, and the weight value is the ratio of the average electric field strength of the corresponding area to the average electric field strength of the environmental assessment area.

[0022] Optionally, the calculation of the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition area includes:

[0023] Normalize the number of people and the average residence duration of people within the electromagnetic radiation coverage area and the electromagnetic radiation superposition area of the candidate base stations;

[0024] Take the product of the number of people and the average residence duration of people in the electromagnetic radiation coverage area of the candidate base stations after normalization as the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage area of the candidate base stations;

[0025] Take the product of the number of people and the average residence duration of people in the electromagnetic radiation superposition area after normalization as the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition area.

[0026] Optionally, determining the positions of the terminal devices with low signal strength includes:

[0027] Obtain the stock base station data within the environmental assessment area, where the stock base station data includes stock base station location data, stock base station configuration data, and interaction data between the stock base stations and the terminal devices;

[0028] Extract the signal strength of the terminal devices through the interaction data between the stock base stations and the terminal devices;

[0029] Locate the terminal devices with signal strength less than the preset signal strength threshold through the cellular network positioning technology to obtain the positions of the terminal devices with low signal strength.

[0030] Optionally, obtaining the candidate base station layout position set includes:

[0031] Analyze the distribution of the positions of the terminal devices with low signal strength through the spatial clustering algorithm to obtain the aggregation area of the terminal devices with low signal strength;

[0032] Determine the signal coverage area of the candidate base stations by combining the candidate base station data with the path loss model;

[0033] Calculate the regional overlap degree between the signal coverage area of the candidate base stations at different positions within the environmental assessment area and the aggregation area of the terminal devices with low signal strength;

[0034] Take the positions with the regional overlap degree greater than or equal to the preset regional overlap threshold as the candidate base station layout positions and obtain the candidate base station layout position set.

[0035] Optionally, obtaining the electromagnetic radiation superposition area includes:

[0036] Construct a communication base station electromagnetic propagation model and calculate the electric field strength distribution data of the stock base stations and the candidate base stations respectively by combining the stock base station data and the candidate base station data;

[0037] Based on the electric field intensity distribution data of existing base stations and candidate base stations, the regions where the corresponding electric field intensity is greater than or equal to the preset electric field intensity threshold are respectively used as the electromagnetic radiation coverage regions of existing base stations and candidate base stations;

[0038] The union of the electromagnetic radiation coverage regions of existing base stations and candidate base stations is used as the electromagnetic radiation superposition region.

[0039] Optionally, the determining the optimal base station placement position in the environmental assessment region includes:

[0040] Obtaining the electromagnetic radiation influence coefficients of candidate base stations at each candidate base station placement position in the set of candidate base station placement positions;

[0041] The candidate base station placement positions where the electromagnetic radiation influence coefficients of candidate base stations are less than the preset electromagnetic radiation influence threshold are used as the optimal base station placement positions in the environmental assessment region.

[0042] To achieve the above object, an electromagnetic radiation environment assessment system according to an embodiment of the second aspect of the present application includes:

[0043] A data acquisition module, configured to acquire existing base station data, candidate base station data, and regional personnel spatio-temporal distribution data in the environmental assessment region;

[0044] An equipment signal strength analysis module, configured to analyze the signal strength distribution of terminal devices in the environmental assessment region through existing base station data, and determine the positions of terminal devices with low signal strength;

[0045] A base station placement position determination module, configured to determine candidate base station placement positions according to the distribution of positions of terminal devices with low signal strength in combination with candidate base station data, and obtain a set of candidate base station placement positions;

[0046] A radiation superposition region analysis module, configured to analyze the electromagnetic radiation superposition situation between candidate base stations and existing base stations at each candidate base station placement position according to existing base station data and candidate base station data, and obtain an electromagnetic radiation superposition region;

[0047] A personnel spatio-temporal distribution analysis module, configured to analyze the personnel distribution situation in the electromagnetic radiation coverage regions and electromagnetic radiation superposition regions of candidate base stations at each candidate base station placement position according to regional personnel spatio-temporal distribution data;

[0048] An optimal placement position evaluation module, configured to comprehensively determine the optimal base station placement position in the environmental assessment region according to the personnel distribution situation in the electromagnetic radiation coverage regions and electromagnetic radiation superposition regions of candidate base stations.

[0049] To achieve the above object, an electronic device according to an embodiment of the third aspect of the present application includes: a processor and a memory. Among them, a computer program that can be called by the processor is stored in the memory, and the processor executes an electromagnetic radiation environment evaluation method based on data analysis by calling the computer program stored in the memory.

[0050] To achieve the above object, a computer-readable storage medium according to an embodiment of the fourth aspect of the present application stores instructions that, when run on a computer, cause the computer to execute an electromagnetic radiation environment evaluation method based on data analysis.

[0051] The beneficial effects of the present application are as follows:

[0052] The present application determines the candidate base station layout positions by analyzing the signal strength distribution of terminal devices in the environment evaluation area and combining the candidate base station data, analyzes the electromagnetic radiation superposition situation between the candidate base stations and the existing base stations at each candidate base station layout position, and on this basis, comprehensively evaluates the personnel distribution characteristics in the electromagnetic radiation coverage area and the electromagnetic radiation superposition area of the candidate base stations to determine the optimal base station layout plan, effectively controlling the impact of electromagnetic radiation on the environment and the public while ensuring the network signal coverage quality, thereby achieving a balance between base station optimization deployment and environmental safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, objects, and advantages of the present application will become more apparent:

[0054] Figure 1 is a schematic overall flow chart of an electromagnetic radiation environment evaluation method based on data analysis according to an embodiment of the present application;

[0055] Figure 2 is a schematic structural diagram of an electromagnetic radiation environment evaluation system based on data analysis according to an embodiment of the present application;

[0056] Figure 3 is a schematic structural diagram of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0057] The technical solutions of the present application will be described in detail below with reference to the drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. Without conflict, the technical features in the embodiments of the present application and the embodiments can be combined with each other.

[0058] Figure 1It is a schematic diagram of the overall process of an electromagnetic radiation environment assessment method based on data analysis according to an embodiment of the present application. As Figure 1 shown, it specifically includes the following steps:

[0059] S110: Obtain the inventory base station data, candidate base station data, and regional personnel spatio-temporal distribution data within the environmental assessment area.

[0060] S120: Analyze the signal strength distribution of terminal devices within the environmental assessment area through the inventory base station data, and determine the positions of terminal devices with low signal strength;

[0061] By analyzing the signal distribution of terminal devices that interact with existing base stations, it is possible to determine the weak areas of signal coverage, such as signal blind spots and weak coverage areas. The weak areas of signal coverage may be caused by excessive base station spacing, building blockage, complex terrain, or interference factors. At the same time, when the terminal device is in an environment with low signal strength, the device will automatically increase its own transmission power to maintain communication, thereby increasing the local electromagnetic radiation level. Therefore, determining the weak areas of signal coverage helps to reasonably plan the positions of candidate base stations, enabling the newly added base stations to maximize the signal coverage effect, thereby reducing the transmission power of terminal devices and reducing the overall electromagnetic radiation exposure. Determining the positions of terminal devices with low signal strength includes:

[0062] Obtain the inventory base station data within the environmental assessment area. The inventory base station data includes inventory base station location data, inventory base station configuration data, and interaction data between the inventory base station and terminal devices;

[0063] Extract the signal strength of the terminal device through the interaction data between the inventory base station and the terminal device. Among them, the signal strength refers to the signal power level received by the terminal device from the base station, such as RSRP (Reference Signal Received Power), RSSI (Received Signal Strength Indicator), and SINR (Signal-to-Interference-plus-Noise Ratio). The specific steps include: (1) The terminal device regularly reports RSRP, RSSI, or SINR data to the base station; (2) The base station obtains the signal strength of the terminal device through the uplink (UL).

[0064] Locate the terminal device with a signal strength less than the preset signal strength threshold through the cellular network positioning technology to obtain the location of the terminal device with low signal strength. Among them, the cellular network positioning technology is any one of E-CID, A-GNSS, DL-TDOA, and UL-TDOA. In an embodiment of the present application, the preset signal strength threshold for LTE (4G) terminal devices is -105 dBm, and the preset signal strength threshold for NR (5G) terminal devices is -110 dBm.

[0065] S130: Determine the candidate base station layout positions based on the location distribution of the terminal devices with low signal strength in combination with the candidate base station data to obtain a set of candidate base station layout positions;

[0066] Based on the spatial distribution characteristics of the terminal devices with low signal strength and the signal coverage capabilities of the candidate base stations, further select the layout positions of the newly built base stations to optimize the signal coverage effect of the terminal devices to the greatest extent and reduce the signal blind areas, obtaining a set of candidate base station layout positions, including:

[0067] Analyze the location distribution of the terminal devices with low signal strength through the spatial clustering algorithm to obtain the aggregation areas of the terminal devices with low signal strength;

[0068] Determine the signal coverage areas of the candidate base stations by combining the candidate base station data with the path loss model. Among them, the path loss model is any one of the free space path loss model, the ray tracing model, and the Hata model. The candidate base station data includes candidate base station location data and candidate base station configuration data. Taking the free space path loss model as an example, the free space path loss model is:

[0069] ;

[0070] In the formula represents the carrier frequency, represents the distance between the base station and the terminal device, represents the base station path loss in the free space path loss model;

[0071] Calculate the regional overlap degree between the signal coverage areas of the candidate base stations at different positions in the environmental assessment area and the aggregation areas of the terminal devices with low signal strength;

[0072] Take the positions with a regional overlap degree greater than or equal to the preset regional overlap threshold as the candidate base station layout positions and obtain a set of candidate base station layout positions.

[0073] S140: Analyze the electromagnetic radiation superposition situation between the candidate base stations and the existing base stations at each candidate base station layout position in the set of candidate base station layout positions based on the existing base station data and the candidate base station data to obtain the electromagnetic radiation superposition area;

[0074] By analyzing the electric field intensity distributions of existing base stations and candidate base stations at different candidate locations, and determining the overlapping areas of base station electromagnetic radiation coverage, the impact of newly added base stations on the overall electromagnetic environment can be evaluated. Meanwhile, determining the electromagnetic radiation superposition area will help optimize the layout positions of candidate base stations, that is, without affecting signal coverage, by adjusting the positions of candidate base stations, unnecessary electromagnetic radiation accumulation can be reduced. The electromagnetic radiation superposition area includes:

[0075] Construct a communication base station electromagnetic propagation model and calculate the electric field intensity distribution data of existing base stations and candidate base stations by combining existing base station data and candidate base station data respectively. Since the electromagnetic radiation in the mobile communication frequency band belongs to non-ionizing radiation, and the greater the radiation intensity of the field source, the higher the degree of electromagnetic pollution, and the higher the frequency and the longer the contact time, the greater the harm to the human body. Therefore, when evaluating the electric field intensity distribution of base stations, the propagation environment of outdoor base station signals is considered. Since the application scenario of the space loss model under ideal conditions is relatively limited, there are inevitably specular reflections or diffuse reflections that are difficult to block in the actual environment. Therefore, more complex path loss models need to be considered. Therefore, the communication base station electromagnetic propagation model is any one of the Okumura-Hata model, the COST 231-Hata model, and the COST 231-Walfish-Ikegami model. Taking the Okumura-Hata model as an example, the Okumura-Hata model is: ;

[0076] In the formula represents the path loss reference value, represents the path loss reference value, represents the carrier frequency, represents the effective height of the transmitting antenna, represents the effective height of the receiving antenna, represents the distance between the base station and the terminal device, represents the propagation environment correction factor, taking for small and medium-sized cities, and for large cities, represents the base station path loss in the Okumura-Hata model, where

[0077] ;

[0078] ;

[0079] ;

[0080] Based on the electric field intensity distribution data of existing base stations and candidate base stations, the regions where the corresponding electric field intensity is greater than or equal to the preset electric field intensity threshold are respectively used as the electromagnetic radiation coverage regions of existing base stations and candidate base stations. In an embodiment of the present application, according to the "Limit Values for Electromagnetic Environment Control" (GB8702-2014), the preset electric field intensity threshold is 12 V / m;

[0081] The union of the electromagnetic radiation coverage regions of existing base stations and candidate base stations is used as the electromagnetic radiation superposition region.

[0082] S150: Analyze the personnel distribution in the electromagnetic radiation coverage regions and electromagnetic radiation superposition regions of each candidate base station location in the candidate base station location set according to the regional personnel spatio-temporal distribution data;

[0083] By comprehensively calculating the electromagnetic radiation impact coefficient, it is possible to identify regions with high pedestrian flow, long residence duration, and strong electromagnetic radiation, so as to adjust the base station location, reduce the long-term radiation exposure to the crowd, and then, on the premise of meeting signal coverage, avoid building new base stations in areas with dense population and long-term stay, optimize the candidate base station site selection, and thus achieve the balance between communication quality optimization and electromagnetic environment safety. Analyzing the personnel distribution in the electromagnetic radiation coverage regions and electromagnetic radiation superposition regions of each candidate base station location includes:

[0084] Obtain the regional personnel spatio-temporal distribution data and electric field intensity distribution data in the environmental assessment region;

[0085] Extract the regional personnel spatio-temporal distribution data and electric field intensity distribution data in the electromagnetic radiation coverage regions and electromagnetic radiation superposition regions of candidate base stations;

[0086] Count the number of personnel, the average residence duration of personnel, and the average electric field intensity in the electromagnetic radiation coverage regions and electromagnetic radiation superposition regions of each candidate base station location;

[0087] Calculate the electromagnetic radiation impact coefficient of the electromagnetic radiation coverage region of the candidate base station and the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition region respectively through the number of personnel and the average residence duration of personnel;

[0088] The electromagnetic radiation impact coefficient of the candidate base station's electromagnetic radiation coverage area and the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area are weighted and summed to obtain the electromagnetic radiation impact coefficient of the candidate base station. The weight value is the ratio of the average electric field intensity of the corresponding area to the average electric field intensity of the environmental assessment area. That is, the weight value of the electromagnetic radiation impact coefficient of the candidate base station's electromagnetic radiation coverage area is the ratio of the average electric field intensity of the candidate base station's electromagnetic radiation coverage area to the average electric field intensity of the environmental assessment area, and the weight value of the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area is the ratio of the average electric field intensity of the electromagnetic radiation superposition area to the average electric field intensity of the environmental assessment area;

[0089] Calculate the electromagnetic radiation impact coefficient of the candidate base station's electromagnetic radiation coverage area and the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area, including:

[0090] Normalize the number of people and the average residence time of people in the candidate base station's electromagnetic radiation coverage area and the electromagnetic radiation superposition area. In an embodiment of the present application, the Min-Max normalization method is used to normalize the number of people and the average residence time of people. The calculation formula of the Min-Max normalization method is:

[0091] ;

[0092] In the formula represents any variable in the number of people and the average residence time of people, and represent the maximum and minimum values of this variable in all candidate base station electromagnetic radiation coverage areas and electromagnetic radiation superposition areas respectively, represents the variable after normalization processing;

[0093] Take the product of the normalized number of people and the average residence time of people in the candidate base station's electromagnetic radiation coverage area as the electromagnetic radiation impact coefficient of the candidate base station's electromagnetic radiation coverage area;

[0094] Take the product of the normalized number of people and the average residence time of people in the electromagnetic radiation superposition area as the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area.

[0095] S160: Determine the optimal base station layout position in the environmental assessment area by comprehensively considering the personnel distribution in the electromagnetic radiation coverage area and the electromagnetic radiation superposition area of the candidate base station;

[0096] By eliminating the candidate base station layout points with higher electromagnetic radiation impact coefficients, it is possible to effectively avoid deploying new base stations in crowded areas or long-term residence areas, thereby reducing the public radiation exposure caused by the base stations. Determine the optimal base station layout position in the environmental assessment area, including:

[0097] Obtain the electromagnetic radiation influence coefficients of the candidate base stations at each candidate base station layout position in the set of candidate base station layout positions;

[0098] Take the candidate base station layout positions with the electromagnetic radiation influence coefficients of the candidate base stations less than the preset electromagnetic radiation influence threshold as the optimal base station layout positions within the environmental assessment area.

[0099] In an embodiment of the present application, the value-taking methods for setting parameters such as the preset signal strength threshold, the preset area overlap threshold, and the preset electric field strength threshold can be as follows: construct a data set by obtaining the existing base station data, candidate base station data, and regional personnel spatio-temporal distribution data, substitute the signal strength of the evaluation terminal device, the area overlap degree, and the electromagnetic radiation influence coefficient of the candidate base station, and at the same time obtain the judgment results of experts on the low signal strength of the terminal device, the area overlap degree, and the optimal base station layout position. Import the evaluated signal strength of the terminal device, the area overlap degree, the electromagnetic radiation influence coefficient of the candidate base station, and the judgment results into the fitting software, and output the preset signal strength threshold, the preset area overlap threshold, and the preset electric field strength threshold that meet the maximum judgment accuracy rate.

[0100] Figure 2 It is a schematic structural diagram of an electromagnetic radiation environment assessment system based on data analysis according to an embodiment of the present application, as Figure 2 shown, including:

[0101] A data acquisition module 210, configured to acquire existing base station data, candidate base station data, and regional personnel spatio-temporal distribution data within the environmental assessment area;

[0102] An equipment signal strength analysis module 220, configured to analyze the signal strength distribution of terminal devices within the environmental assessment area through the existing base station data, and determine the positions of terminal devices with low signal strength;

[0103] A base station layout position determination module 230, configured to determine candidate base station layout positions according to the distribution of the positions of terminal devices with low signal strength in combination with the candidate base station data, and obtain a set of candidate base station layout positions;

[0104] A radiation superposition area analysis module 240, configured to analyze the electromagnetic radiation superposition situation between the candidate base stations and the existing base stations at each candidate base station layout position according to the existing base station data and the candidate base station data, and obtain an electromagnetic radiation superposition area;

[0105] A personnel spatio-temporal distribution analysis module 250, configured to analyze the personnel distribution situation within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area at each candidate base station layout position according to the regional personnel spatio-temporal distribution data;

[0106] The optimal site selection position evaluation module 260 is used to determine the optimal base station site selection position in the environmental evaluation area by comprehensively considering the electromagnetic radiation coverage area of the candidate base stations and the personnel distribution in the electromagnetic radiation superposition area.

[0107] In an embodiment of the present application, the device signal strength analysis module 220 is used to analyze the signal strength distribution of the terminal devices in the environmental evaluation area through the existing base station data, and determine the positions of the terminal devices with low signal strength. Determining the positions of the terminal devices with low signal strength includes:

[0108] Obtain the existing base station data in the environmental evaluation area, where the existing base station data includes the existing base station location data, the existing base station configuration data, and the interaction data between the existing base stations and the terminal devices;

[0109] Extract the signal strength of the terminal devices through the interaction data between the existing base stations and the terminal devices;

[0110] Locate the terminal devices with signal strength less than the preset signal strength threshold through the cellular network positioning technology to obtain the positions of the terminal devices with low signal strength.

[0111] In an embodiment of the present application, the base station site selection position determination module 230 is used to determine the candidate base station site selection positions according to the distribution of the positions of the terminal devices with low signal strength in combination with the candidate base station data, and obtain a set of candidate base station site selection positions. Obtaining a set of candidate base station site selection positions includes:

[0112] Analyze the distribution of the positions of the terminal devices with low signal strength through the spatial clustering algorithm to obtain the aggregation area of the terminal devices with low signal strength;

[0113] Determine the candidate base station signal coverage area through the candidate base station data in combination with the path loss model;

[0114] Calculate the regional overlap degree between the candidate base station signal coverage area and the aggregation area of the terminal devices with low signal strength at different positions in the environmental evaluation area;

[0115] Take the positions with the regional overlap degree greater than or equal to the preset regional overlap threshold as the candidate base station site selection positions and obtain a set of candidate base station site selection positions.

[0116] In an embodiment of the present application, the radiation superposition area analysis module 240 is used to analyze the electromagnetic radiation superposition situation between the candidate base stations and the existing base stations at each candidate base station site selection position according to the existing base station data and the candidate base station data, and obtain the electromagnetic radiation superposition area. Obtaining the electromagnetic radiation superposition area includes:

[0117] Construct a communication base station electromagnetic propagation model and calculate the electric field strength distribution data of the existing base stations and the candidate base stations respectively in combination with the existing base station data and the candidate base station data;

[0118] Based on the electric field intensity distribution data of existing base stations and candidate base stations, the regions where the corresponding electric field intensity is greater than or equal to the preset electric field intensity threshold are respectively used as the electromagnetic radiation coverage regions of existing base stations and candidate base stations;

[0119] The union of the electromagnetic radiation coverage region of the existing base station and the electromagnetic radiation coverage region of the candidate base station is used as the electromagnetic radiation superposition region.

[0120] In an embodiment of the present application, the personnel spatio-temporal distribution analysis module 250 is used to analyze the personnel distribution in the electromagnetic radiation coverage region and the electromagnetic radiation superposition region at the candidate base station layout positions according to the regional personnel spatio-temporal distribution data. Analyzing the personnel distribution in the electromagnetic radiation coverage region and the electromagnetic radiation superposition region at the candidate base station layout positions includes:

[0121] Obtain the regional personnel spatio-temporal distribution data and electric field intensity distribution data in the environmental assessment region;

[0122] Extract the regional personnel spatio-temporal distribution data and electric field intensity distribution data in the electromagnetic radiation coverage region and the electromagnetic radiation superposition region of the candidate base station;

[0123] Count the number of personnel, the average residence duration of personnel, and the average electric field intensity in the electromagnetic radiation coverage region and the electromagnetic radiation superposition region at the candidate base station layout positions;

[0124] Calculate the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage region of the candidate base station and the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition region respectively through the number of personnel and the average residence duration of personnel;

[0125] Perform weighted summation on the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage region of the candidate base station and the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition region to obtain the electromagnetic radiation influence coefficient of the candidate base station, and the weight value is the ratio of the average electric field intensity of the corresponding region to the average electric field intensity of the environmental assessment region;

[0126] Calculating the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage region of the candidate base station and the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition region includes:

[0127] Normalize the number of personnel and the average residence duration of personnel in the electromagnetic radiation coverage region and the electromagnetic radiation superposition region of the candidate base station;

[0128] The product of the normalized number of personnel and the average residence duration of personnel in the electromagnetic radiation coverage region of the candidate base station is used as the electromagnetic radiation influence coefficient of the electromagnetic radiation coverage region of the candidate base station;

[0129] The product of the number of people in the electromagnetic radiation superposition area after normalization processing and the average residence time of the people is used as the electromagnetic radiation influence coefficient of the electromagnetic radiation superposition area.

[0130] In an embodiment of the present application, the optimal site selection position evaluation module 260 is used to determine the optimal base station site selection position in the environmental evaluation area by comprehensively considering the electromagnetic radiation coverage area of the candidate base stations and the personnel distribution in the electromagnetic radiation superposition area. Determining the optimal base station site selection position in the environmental evaluation area includes:

[0131] Obtain the electromagnetic radiation influence coefficient of each candidate base station site selection position in the candidate base station site selection position set;

[0132] The candidate base station site selection position with the electromagnetic radiation influence coefficient of the candidate base station less than the preset electromagnetic radiation influence threshold is used as the optimal base station site selection position in the environmental evaluation area.

[0133] For the steps of each parameter and each unit module in the above-mentioned electromagnetic radiation environment evaluation system based on data analysis of the present application to implement corresponding functions, reference can be made to the parameters and steps in the embodiment of the electromagnetic radiation environment evaluation method based on data analysis in the above text, which will not be elaborated here.

[0134] Figure 3 It is a schematic structural diagram of an electronic device according to an embodiment of the present application. As Figure 3 shown, an embodiment of the present invention further provides an electronic device 300, including a memory 310, a processor 320, and a communication bus 330; the memory 310 and the processor 320 are connected through the communication bus 330. The memory 310 stores instructions that can be loaded and executed by the processor 320, such as an electromagnetic radiation environment evaluation method based on data analysis provided in the above embodiment.

[0135] The memory 310 can be used to store instructions, programs, codes, code sets, or instruction sets. The memory 310 may include a program storage area and a data storage area. Among them, the program storage area can store instructions for implementing an operating system, instructions for at least one function, and instructions for implementing an electromagnetic radiation environment evaluation method based on data analysis provided in the above embodiment, etc.; the data storage area can store data involved in the electromagnetic radiation environment evaluation method based on data analysis provided in the above embodiment, etc.

[0136] The processor 320 may include one or more processing cores. By running or executing instructions, programs, code sets, or instruction sets stored in the memory 310, the processor 320 invokes the data stored in the memory 310 to perform various functions of this application and process data. The processor 320 may be at least one of an application specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field programmable gate array (FPGA), a central processing unit (CPU), a controller, a microcontroller, and a microprocessor. It can be understood that for different devices, the electronic devices for implementing the functions of the above-mentioned processor 320 may also be others, and the embodiments of this application do not make specific limitations.

[0137] The communication bus 330 may include a path for transmitting information between the above components. The communication bus 330 may be a PCI (Peripheral Component Interconnect) bus or an EISA (Extended Industry Standard Architecture) bus, etc. The communication bus 330 may be divided into an address bus, a data bus, a control bus, etc. For the sake of convenience of representation, Figure 3 only a double arrow is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0138] The embodiments of this application provide a computer-readable storage medium storing a computer program that can be loaded and executed by a processor to perform a method for evaluating an electromagnetic radiation environment based on data analysis as provided in the above embodiments.

[0139] In the embodiments of the present application, a computer-readable storage medium may be a tangible device that retains and stores instructions used by an instruction execution device. The computer-readable storage medium may be, but is not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any combination of the foregoing. Specifically, the computer-readable storage medium may be a portable computer disk, a hard disk, a USB flash drive, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), a static random access memory (SRAM), a portable compact disc read-only memory (CD-ROM), a digital versatile disc (DVD), a memory stick, a floppy disk, an optical disc, a magnetic disk, a mechanical encoding device, and any combination of the foregoing.

[0140] The term "comprising", "including" or any other variant thereof is intended to cover a non-exclusive inclusion, such that a process, method, article or apparatus that comprises a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or apparatus.

[0141] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the application involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the foregoing application concept. For example, a technical solution formed by mutually replacing the above features with (but not limited to) technical features having similar functions in the present application.

Claims

1. An electromagnetic radiation environment assessment method based on data analysis, characterized in that Including the following steps: Obtain the inventory base station data, candidate base station data, and regional personnel spatio-temporal distribution data within the environmental assessment area; Analyze the signal strength distribution of terminal devices within the environmental assessment area through the inventory base station data, and determine the positions of terminal devices with low signal strength; Determine the candidate base station layout positions based on the distribution of terminal device positions with low signal strength in combination with the candidate base station data, and obtain a set of candidate base station layout positions; Analyze the electromagnetic radiation superposition situation between the candidate base stations and the inventory base stations at each candidate base station layout position based on the inventory base station data and the candidate base station data, and obtain the electromagnetic radiation superposition area; Analyze the personnel distribution situation within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area at each candidate base station layout position based on the regional personnel spatio-temporal distribution data; Comprehensively determine the optimal base station layout position within the environmental assessment area based on the personnel distribution situation within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area; The analysis of the personnel distribution situation within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area includes: Obtain the regional personnel spatio-temporal distribution data and electric field strength distribution data within the environmental assessment area; Extract the regional personnel spatio-temporal distribution data and electric field strength distribution data within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area; Count the number of personnel, the average residence duration of personnel, and the average electric field strength within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area at each candidate base station layout position; Calculate the electromagnetic radiation impact coefficient of the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area respectively through the number of personnel and the average residence duration of personnel; Perform weighted summation on the electromagnetic radiation impact coefficient of the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area to obtain the electromagnetic radiation impact coefficient of the candidate base stations, and the weight value is the ratio of the average electric field strength of the corresponding area to the average electric field strength of the environmental assessment area; The determination of the optimal base station layout position within the environmental assessment area includes: Take the candidate base station layout positions with the electromagnetic radiation impact coefficient of the candidate base stations less than the preset electromagnetic radiation impact threshold as the optimal base station layout positions within the environmental assessment area.

2. The electromagnetic radiation environment assessment method based on data analysis according to claim 1, characterized in that The calculation of the electromagnetic radiation impact coefficient of the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area includes: Normalize the number of personnel and the average residence duration of personnel within the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area; Take the product of the number of personnel and the average residence duration of personnel within the electromagnetic radiation coverage area of the candidate base stations after normalization as the electromagnetic radiation impact coefficient of the electromagnetic radiation coverage area of the candidate base stations; Take the product of the number of personnel and the average residence duration of personnel within the electromagnetic radiation superposition area after normalization as the electromagnetic radiation impact coefficient of the electromagnetic radiation superposition area.

3. The electromagnetic radiation environment assessment method based on data analysis according to claim 1, wherein, The determination of the positions of terminal devices with low signal strength includes: Obtain the inventory base station data within the environmental assessment area, and the inventory base station data includes inventory base station location data, inventory base station configuration data, and interaction data between the inventory base stations and terminal devices; Extract the signal strength of the terminal device through the interaction data between the existing base stations and the terminal device; Locate the terminal device with a signal strength less than the preset signal strength threshold through the cellular network positioning technology to obtain the location of the terminal device with low signal strength.

4. A method for evaluating electromagnetic radiation environment based on data analysis according to claim 1, characterized in that The obtaining of the candidate base station layout position set includes: Analyze the location distribution of the terminal devices with low signal strength through the spatial clustering algorithm to obtain the aggregation area of the terminal devices with low signal strength; Determine the signal coverage area of the candidate base stations by combining the candidate base station data with the path loss model; Calculate the area overlap degree between the signal coverage area of the candidate base stations at different positions in the environmental assessment area and the aggregation area of the terminal devices with low signal strength; Take the positions with an area overlap degree greater than or equal to the preset area overlap threshold as the candidate base station layout positions and obtain the candidate base station layout position set.

5. The electromagnetic radiation environment assessment method based on data analysis according to claim 1, characterized in that, The obtaining of the electromagnetic radiation superposition area includes: Construct an electromagnetic propagation model for communication base stations and calculate the electric field strength distribution data of the existing base stations and the candidate base stations by combining the existing base station data and the candidate base station data respectively; Based on the electric field strength distribution data of the existing base stations and the candidate base stations, take the areas with corresponding electric field strengths greater than or equal to the preset electric field strength threshold as the electromagnetic radiation coverage areas of the existing base stations and the candidate base stations respectively; Take the union of the electromagnetic radiation coverage area of the existing base stations and the electromagnetic radiation coverage area of the candidate base stations as the electromagnetic radiation superposition area.

6. An electromagnetic radiation environment assessment system based on data analysis, applied to an electromagnetic radiation environment assessment method according to any one of claims 1-5, characterized in that, The system includes: A data acquisition module for acquiring the existing base station data, candidate base station data and regional personnel spatio-temporal distribution data in the environmental assessment area; A device signal strength analysis module for analyzing the signal strength distribution of the terminal devices in the environmental assessment area through the existing base station data and determining the locations of the terminal devices with low signal strength; A base station layout position determination module for determining the candidate base station layout positions according to the location distribution of the terminal devices with low signal strength and combining the candidate base station data to obtain the candidate base station layout position set; A radiation superposition area analysis module for analyzing the electromagnetic radiation superposition situation between the candidate base stations and the existing base stations at each candidate base station layout position according to the existing base station data and the candidate base station data to obtain the electromagnetic radiation superposition area; A personnel spatio-temporal distribution analysis module for analyzing the personnel distribution situation in the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area at each candidate base station layout position according to the regional personnel spatio-temporal distribution data; An optimal layout position evaluation module for comprehensively determining the optimal base station layout position in the environmental assessment area according to the personnel distribution situation in the electromagnetic radiation coverage area of the candidate base stations and the electromagnetic radiation superposition area.

7. An electronic device, comprising: A processor and a memory, wherein the memory stores a computer program that can be called by the processor; characterized in that the processor executes a method for electromagnetic radiation environment assessment based on data analysis as described in any one of claims 1-5 by calling the computer program stored in the memory.

8. A computer-readable storage medium, characterized in that, Instructions are stored, and when the instructions run on a computer, the computer executes a method for electromagnetic radiation environment assessment based on data analysis as described in any one of claims 1-5.

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