Electromagnetic environment effect evaluation system based on multi-source data

Abstract

The invention relates to the technical field of electromagnetic environment effect evaluation, and discloses an electromagnetic environment effect evaluation system based on multi-source data, and the system comprises an information collection module which is used for obtaining the current working information of a target region; the working information of the target area comprises temperature and humidity information, electromagnetic intensity information and electromagnetic source information; the data analysis module is used for calculating the influence value of the terrain information of the target area on the electromagnetic environment effect according to the current working information of the target area. Compared with a common electromagnetic environment effect evaluation method, the temperature and humidity information and the electromagnetic intensity information of the target area are collected in real time, the electromagnetic intensity information is corrected, the influence of environmental factors on measurement of the electromagnetic intensity is reduced, and the measurement accuracy is improved. And the influence value of the terrain information of the target area on the electromagnetic environment effect is calculated by using the corrected electromagnetic intensity information, so that the precision of the evaluation system is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electromagnetic environment effect assessment, and more specifically, to an electromagnetic environment effect assessment system based on multi-source data. Background Art

[0002] With the development of modern science and technology, the evaluation of electromagnetic environmental effects has become increasingly important, especially in the deployment and use of wireless communications, radar systems, and various electronic devices. At present, the evaluation of electromagnetic environmental effects mostly relies on a single data source and a simple model, which often results in inaccurate evaluation results. Especially considering complex terrain and changing climate conditions, it is difficult for existing evaluation methods to accurately reflect the behavior characteristics of electromagnetic waves in the actual environment. In addition, the effects of factors such as temperature and humidity on electromagnetic wave propagation are often ignored, which can lead to large deviations in the evaluation results. Summary of the invention

[0003] The present invention provides an electromagnetic environment effect assessment system based on multi-source data to solve the technical problems in the above-mentioned background technology.

[0004] The present invention provides an electromagnetic environment effect assessment system based on multi-source data, comprising: The information collection module is used to obtain the current working information of the target area; The working information of the target area includes: temperature and humidity information, electromagnetic intensity information and electromagnetic source information; The data analysis module is used to calculate the impact value of the terrain information of the target area on the electromagnetic environment effect according to the current working information of the target area; Wherein, the data analysis module includes a correction unit and an influence value calculation unit; The correction unit is used to correct the electromagnetic intensity information according to the temperature and humidity information to generate the corrected electromagnetic intensity information; the impact value calculation unit is used to calculate the impact value of the terrain information of the target area on the electromagnetic environment effect according to the corrected electromagnetic intensity information and the electromagnetic source information; the evaluation module is used to evaluate the impact value of electromagnetic signals in different directions according to the terrain information of the target area.

[0005] Furthermore, the method for obtaining temperature and humidity information and electromagnetic intensity information is as follows: Temperature sensors, humidity sensors and electromagnetic intensity sensors are set up in the target area to collect temperature, humidity and electromagnetic intensity information of the target area in real time and build an electromagnetic information data set; The temperature, humidity and electromagnetic intensity at the same time in the electromagnetic information data set correspond one to one.

[0006] Furthermore, the method for obtaining electromagnetic source information of the target area is as follows: The location information and electromagnetic intensity information of the electromagnetic sources around the target area are collected, and a set of electromagnetic source distribution maps is constructed based on the electromagnetic information data set with the target area as the center. Each electromagnetic source distribution map in the set of electromagnetic source distribution maps represents the location of an electromagnetic source and the intensity of the electromagnetic signal of the electromagnetic source at a corresponding time.

[0007] Furthermore, the steps of correcting the electromagnetic intensity information by the correction unit are specifically as follows: Step S101, obtaining the dielectric constant of the atmosphere under standard conditions and conductivity ; Step S102: Obtain the dielectric constant of the atmosphere in the target area and conductivity ; Step S103, correcting the electromagnetic intensity information to generate corrected electromagnetic intensity information, the calculation formula of which is as follows: ; In the formula, Indicates the corrected electromagnetic intensity of the target area, that is, corrected electromagnetic intensity information; Indicates the electromagnetic intensity of the target area acquired by the information acquisition module; Indicates the temperature of the target area; Indicates the humidity in the target area; Indicates the change in dielectric constant caused by temperature and humidity; Indicates the change in conductivity caused by temperature and humidity.

[0008] Furthermore, the step of calculating the impact value of the terrain information of the target area on the electromagnetic environment effect by the impact value calculation unit is as follows: Step S201, calculating the electromagnetic intensity of the target area according to the electromagnetic source distribution map set to generate a target electromagnetic intensity; Step S202, calculating the ratio between the target electromagnetic intensity and the corrected electromagnetic intensity information, and generating the impact value of the terrain information of the target area on the electromagnetic environment effect.

[0009] Furthermore, the steps of calculating the electromagnetic intensity of the target area are as follows: Step S301, determining the position coordinates of the electromagnetic sources and the average electromagnetic intensity of each electromagnetic source according to the electromagnetic source distribution map set; Step S302, defining the boundary of the target area in the electromagnetic source distribution map set; Step S303, defining standard environmental conditions; Standard environmental conditions include: standard temperature, standard humidity and standard atmospheric pressure; Step S304, calculating the electromagnetic intensity of the target area , and its calculation formula is as follows: ; In the formula, Indicates the total number of electromagnetic sources; represents the weight parameter; is a custom parameter; represents the average electromagnetic intensity of the i-th electromagnetic source; Represents the distance from the i-th electromagnetic source to the target area.

[0010] Furthermore, the specific steps of evaluating the impact values ​​of electromagnetic signals in different directions according to the terrain information of the target area are as follows: Step S401, constructing a coordinate system based on longitude and latitude with the target area as the center; Step S402, randomly selecting k evaluation points in the target area, and calculating the electromagnetic signal strength of the k evaluation points; k is a custom parameter; Step S403, rotating the coordinate system to change the positions of the k evaluation points, and recalculating the electromagnetic signal strengths of the k evaluation points, the calculation formula of which is as follows: ; In the formula, represents the electromagnetic intensity at the i-th evaluation point; Indicates the electromagnetic intensity in the reference direction; and Respectively represent the direction angles of the i-th evaluation point, namely, the elevation angle and the azimuth angle; Indicates the impact value of the target area's terrain information on the electromagnetic environment effect; Represents the direction function, and its calculation formula is as follows: ; Step S404: Calculate the ratio of the electromagnetic signal strength in different directions to the electromagnetic signal strength in the reference direction as the influence value of the terrain information of the target area on the electromagnetic signals in different directions.

[0011] Furthermore, the specific steps of evaluating the impact values ​​of electromagnetic signals in different directions according to the terrain information of the target area are as follows: Step S501, constructing an impact value evaluation model; Step S502, inputting the impact value of the electromagnetic information data set, the electromagnetic source distribution map set and the terrain information of the target area on the electromagnetic environment effect; Step S503: output the impact values ​​of electromagnetic signals in different directions of the terrain information of the target area.

[0012] Further, the influence value evaluation model includes a hidden layer and a classifier; The hidden layer inputs the electromagnetic information data set, the electromagnetic source distribution map set and the impact value of the terrain information of the target area on the electromagnetic environment effect, and outputs the first updated feature; The first update feature is input into the classifier, and the impact value of the electromagnetic signal of the target area on the terrain information in different directions is output.

[0013] Furthermore, the training samples used to train the influence value evaluation model include: Select an area containing multiple electromagnetic sources as the target training area, obtain the influence values ​​of the temperature and humidity information, electromagnetic intensity information, electromagnetic source location information, electromagnetic intensity information of the electromagnetic source and terrain information of the target training area on the electromagnetic environment effect, build a simulation platform based on the above information, adjust the value of one of the parameters each time, and each adjustment serves as sample data of a training sample; The sample labels are obtained through calibration by relevant technical experts.

[0014] The beneficial effects of the present invention are as follows: compared with the common electromagnetic environment effect assessment method, the present invention collects the temperature and humidity information and electromagnetic intensity information of the target area in real time, and corrects the electromagnetic intensity information, thereby reducing the influence of environmental factors on the electromagnetic intensity measurement, and uses the corrected electromagnetic intensity information to calculate the influence value of the terrain information of the target area on the electromagnetic environment effect, thereby improving the accuracy of the assessment system. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a block diagram of the electromagnetic environment effect assessment system based on multi-source data of the present invention.

[0016] In the figure: 10, information collection module; 20, data analysis module; 30, evaluation module. DETAILED DESCRIPTION

[0017] The subject matter described herein will now be discussed with reference to example embodiments. It should be understood that the discussion of these embodiments is only to enable those skilled in the art to better understand and implement the subject matter described herein, and the functions and arrangements of the elements discussed may be changed without departing from the scope of protection of the contents of this specification. Each example may omit, replace or add various processes or components as needed. In addition, the features described relative to some examples may also be combined in other examples.

[0018] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in one or more embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in one or more embodiments of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0019] like Figure 1 As shown, the purpose of the first embodiment of the present invention is to evaluate the electromagnetic environment effect of a certain area. Since the environment will have different effects on electromagnetic waves of different frequencies, when evaluating the electromagnetic environment effect and retrograde of the area, it is necessary to fully consider the impact of environmental factors on electromagnetic intensity. Therefore, an electromagnetic environment effect evaluation system based on multi-source data is proposed, including an information acquisition module 10, a data analysis module 20 and an evaluation module 30; Among them, the information collection module 10 is used to obtain the current working information of the target area; The working information of the target area includes: temperature and humidity information, electromagnetic intensity information and electromagnetic source information; The method for obtaining temperature, humidity and electromagnetic intensity information is as follows: Temperature sensors, humidity sensors and electromagnetic intensity sensors are set up in the target area to collect temperature, humidity and electromagnetic intensity information of the target area in real time and build an electromagnetic information data set; The temperature, humidity and electromagnetic intensity at the same time in the electromagnetic information data set correspond one to one. Preferably, the temperature sensor uses a thermistor temperature sensor, and the humidity sensor uses a resistance temperature sensor. In addition, other applicable sensors can also be used; It is worth noting that the temperature sensor, humidity sensor and electromagnetic intensity sensor are all mature existing technologies and will not be described in detail here.

[0020] The method for obtaining electromagnetic source information of the target area is as follows: The position information and electromagnetic intensity information of the electromagnetic sources around the target area are collected, and a set of electromagnetic source distribution maps is constructed based on the electromagnetic information data set with the target area as the center. Each electromagnetic source distribution map in the electromagnetic source distribution map set represents the position of an electromagnetic source and the intensity of the electromagnetic signal of the electromagnetic source at a corresponding time. It is worth noting that the electromagnetic source distribution map corresponds one-to-one to the information in the electromagnetic information data set at the same time.

[0021] The data analysis module 20 is used to calculate the impact value of the terrain information of the target area on the electromagnetic environment effect according to the current working information of the target area; Wherein, the data analysis module 20 includes a correction unit and an influence value calculation unit; Since the temperature and humidity of the target area will affect the accuracy of the sensor and the propagation direction of the electromagnetic wave to a certain extent, the electromagnetic environment effect is different under different temperature and humidity conditions. Therefore, the electromagnetic intensity needs to be corrected to the standard temperature and humidity environment first. Therefore, the correction unit is used to correct the electromagnetic intensity information according to the temperature and humidity information to generate the corrected electromagnetic intensity information; the influence value calculation unit is used to calculate the influence value of the terrain information of the target area on the electromagnetic environment effect according to the corrected electromagnetic intensity information and the electromagnetic source information; The steps for the correction unit to correct the electromagnetic intensity information are as follows: Step S101, obtaining the dielectric constant of the atmosphere under standard conditions and conductivity ; Step S102: Obtain the dielectric constant of the atmosphere in the target area and conductivity ; Step S103, correcting the electromagnetic intensity information to generate corrected electromagnetic intensity information, the calculation formula of which is as follows: ; In the formula, Indicates the corrected electromagnetic intensity of the target area, that is, corrected electromagnetic intensity information; Indicates the electromagnetic intensity of the target area acquired by the information acquisition module 10; Indicates the temperature of the target area; Indicates the humidity in the target area; Indicates the change in dielectric constant caused by temperature and humidity; Indicates the change in conductivity caused by temperature and humidity.

[0022] It should be noted that, in the process of correcting the electromagnetic intensity, the electromagnetic intensity information in the electromagnetic information data set is corrected in sequence according to the time sequence, and the corrected electromagnetic intensity information is generated, and then the electromagnetic intensity information in the electromagnetic information data set is replaced.

[0023] The steps of calculating the impact value of the terrain information of the target area on the electromagnetic environment effect by the impact value calculation unit are as follows: Step S201, calculating the electromagnetic intensity of the target area according to the electromagnetic source distribution map set to generate a target electromagnetic intensity; Step S202, calculating the ratio between the target electromagnetic intensity and the corrected electromagnetic intensity information, and generating the impact value of the terrain information of the target area on the electromagnetic environment effect.

[0024] The steps for calculating the electromagnetic intensity of the target area are as follows: Step S301, determining the position coordinates of the electromagnetic sources and the average electromagnetic intensity of each electromagnetic source according to the electromagnetic source distribution map set; Step S302, defining the boundary of the target area in the electromagnetic source distribution map set; Step S303, defining standard environmental conditions; The standard environmental conditions include: standard temperature, standard humidity and standard atmospheric pressure. Preferably, the standard temperature is 25°C, the standard humidity is 50%, and the standard atmospheric pressure is 101.325 kPa. Step S304, calculating the electromagnetic intensity of the target area , and its calculation formula is as follows: ; In the formula, Indicates the total number of electromagnetic sources; represents the weight parameter; is a custom parameter; represents the average electromagnetic intensity of the i-th electromagnetic source; Represents the distance from the i-th electromagnetic source to the target area.

[0025] The evaluation module 30 is used to evaluate the impact values ​​of electromagnetic signals in different directions according to the terrain information of the target area; The specific steps for evaluating the impact values ​​of electromagnetic signals in different directions based on the terrain information of the target area are as follows: Step S401, constructing a coordinate system based on longitude and latitude with the target area as the center; Step S402, randomly selecting k evaluation points in the target area, and calculating the electromagnetic signal strength of the k evaluation points; k is a custom parameter. Preferably, k is 8, and the lines connecting the k evaluation points and the center point of the target area do not overlap; Step S403, rotating the coordinate system to change the positions of the k evaluation points, and recalculating the electromagnetic signal strengths of the k evaluation points, the calculation formula of which is as follows: ; In the formula, represents the electromagnetic intensity at the i-th evaluation point; Indicates the electromagnetic intensity in the reference direction; and Respectively represent the direction angles of the i-th evaluation point, namely, the elevation angle and the azimuth angle; Indicates the impact value of the target area's terrain information on the electromagnetic environment effect; Represents the direction function, and its calculation formula is as follows: ; It should be noted that the electromagnetic signal strength of the k evaluation points is calculated based on the target electromagnetic strength and the positional relationship of each evaluation point relative to the target area; Step S404: Calculate the ratio of the electromagnetic signal strength in different directions to the electromagnetic signal strength in the reference direction as the influence value of the terrain information of the target area on the electromagnetic signals in different directions.

[0026] The second embodiment of the present invention aims to evaluate the impact values ​​of electromagnetic signals in different directions according to the terrain information of the target area. The specific steps are as follows: Step S501, constructing an impact value evaluation model; Step S502, inputting the impact value of the electromagnetic information data set, the electromagnetic source distribution map set and the terrain information of the target area on the electromagnetic environment effect; Step S503: output the impact values ​​of electromagnetic signals in different directions of the terrain information of the target area.

[0027] The impact value assessment model includes a hidden layer and a classifier; The hidden layer inputs the electromagnetic information data set, the electromagnetic source distribution map set and the impact value of the terrain information of the target area on the electromagnetic environment effect, and outputs the first updated feature; The first update feature is input into the classifier, and the impact value of the electromagnetic signal of the target area on the terrain information in different directions is output.

[0028] Preferably, the influence value evaluation model is constructed based on the attention mechanism.

[0029] The training samples used to train the influence value assessment model include: Select an area containing multiple electromagnetic sources as the target training area, obtain the influence values ​​of the temperature and humidity information, electromagnetic intensity information, electromagnetic source location information, electromagnetic intensity information of the electromagnetic source and terrain information of the target training area on the electromagnetic environment effect, build a simulation platform based on the above information, adjust the value of one of the parameters each time, and each adjustment serves as sample data of a training sample; The sample labels are obtained through calibration by relevant technical experts; In addition, the sample label can also be calculated according to the method for evaluating the influence values ​​of electromagnetic signals in different directions in the first embodiment of the present invention.

[0030] The above describes an embodiment of the present embodiment, but the present embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present embodiment, ordinary technicians in this field can also make many forms, all of which are protected by the present embodiment.

Claims

1. An electromagnetic environment effect assessment system based on multi-source data, characterized in that: include: The information collection module (10) is used to obtain the current working information of the target area; The working information of the target area includes: temperature and humidity information, electromagnetic intensity information and electromagnetic source information; The data analysis module (20) is used to calculate the impact value of the terrain information of the target area on the electromagnetic environment effect according to the current working information of the target area; Wherein, the data analysis module (20) includes a correction unit and an influence value calculation unit; The correction unit is used to correct the electromagnetic intensity information according to the temperature and humidity information to generate the corrected electromagnetic intensity information; the influence value calculation unit is used to calculate the influence value of the terrain information of the target area on the electromagnetic environment effect according to the corrected electromagnetic intensity information and the electromagnetic source information; The evaluation module (30) is used to evaluate the impact values ​​of electromagnetic signals in different directions according to the terrain information of the target area.

2. The electromagnetic environment effect assessment system based on multi-source data according to claim 1 is characterized in that: The method for obtaining temperature, humidity and electromagnetic intensity information is as follows: Temperature sensors, humidity sensors and electromagnetic intensity sensors are set up in the target area to collect temperature, humidity and electromagnetic intensity information of the target area in real time and build an electromagnetic information data set; The temperature, humidity and electromagnetic intensity at the same time in the electromagnetic information data set correspond one to one.

3. The electromagnetic environment effect assessment system based on multi-source data according to claim 2 is characterized in that: The method for obtaining electromagnetic source information of the target area is as follows: The location information and electromagnetic intensity information of the electromagnetic sources around the target area are collected, and a set of electromagnetic source distribution maps is constructed based on the electromagnetic information data set with the target area as the center. Each electromagnetic source distribution map in the set of electromagnetic source distribution maps represents the location of an electromagnetic source and the intensity of the electromagnetic signal of the electromagnetic source at a corresponding time.

4. The electromagnetic environment effect assessment system based on multi-source data according to claim 3 is characterized in that: The steps for the correction unit to correct the electromagnetic intensity information are as follows: Step S101, obtaining the dielectric constant of the atmosphere under standard conditions and conductivity ; Step S102: Obtain the dielectric constant of the atmosphere in the target area and conductivity ; Step S103, correcting the electromagnetic intensity information to generate corrected electromagnetic intensity information, the calculation formula of which is as follows: ； In the formula, Indicates the corrected electromagnetic intensity of the target area, that is, corrected electromagnetic intensity information; Indicates the electromagnetic intensity of the target area acquired by the information acquisition module (10); Indicates the temperature of the target area; Indicates the humidity in the target area; Indicates the change in dielectric constant caused by temperature and humidity; Indicates the change in conductivity caused by temperature and humidity.

5. The electromagnetic environment effect assessment system based on multi-source data according to claim 4 is characterized in that: The steps of calculating the impact value of the terrain information of the target area on the electromagnetic environment effect by the impact value calculation unit are as follows: Step S201, calculating the electromagnetic intensity of the target area according to the electromagnetic source distribution map set to generate a target electromagnetic intensity; Step S202, calculating the ratio between the target electromagnetic intensity and the corrected electromagnetic intensity information, and generating the impact value of the terrain information of the target area on the electromagnetic environment effect.

6. The electromagnetic environment effect assessment system based on multi-source data according to claim 5, characterized in that: The steps for calculating the electromagnetic intensity of the target area are as follows: Step S301, determining the position coordinates of the electromagnetic sources and the average electromagnetic intensity of each electromagnetic source according to the electromagnetic source distribution map set; Step S302, defining the boundary of the target area in the electromagnetic source distribution map set; Step S303, defining standard environmental conditions; Standard environmental conditions include: standard temperature, standard humidity and standard atmospheric pressure; Step S304, calculating the electromagnetic intensity of the target area , and its calculation formula is as follows: ； In the formula, Indicates the total number of electromagnetic sources; represents the weight parameter; is a custom parameter; represents the average electromagnetic intensity of the i-th electromagnetic source; Represents the distance from the i-th electromagnetic source to the target area.

7. The electromagnetic environment effect assessment system based on multi-source data according to claim 6 is characterized in that: The specific steps for evaluating the impact values ​​of electromagnetic signals in different directions based on the terrain information of the target area are as follows: Step S401, constructing a coordinate system based on longitude and latitude with the target area as the center; Step S402, randomly selecting k evaluation points in the target area, and calculating the electromagnetic signal strength of the k evaluation points; k is a custom parameter; Step S403, rotating the coordinate system to change the positions of the k evaluation points, and recalculating the electromagnetic signal strengths of the k evaluation points, the calculation formula of which is as follows: ； In the formula, represents the electromagnetic intensity at the i-th evaluation point; Indicates the electromagnetic intensity in the reference direction; and Respectively represent the direction angles of the i-th evaluation point, namely, the elevation angle and the azimuth angle; Indicates the impact value of the terrain information of the target area on the electromagnetic environment effect; Represents the direction function, and its calculation formula is as follows: ； Step S404: Calculate the ratio of the electromagnetic signal strength in different directions to the electromagnetic signal strength in the reference direction as the influence value of the terrain information of the target area on the electromagnetic signals in different directions.

8. The electromagnetic environment effect assessment system based on multi-source data according to claim 6 is characterized in that: The specific steps for evaluating the impact values ​​of electromagnetic signals in different directions based on the terrain information of the target area are as follows: Step S501, constructing an impact value evaluation model; Step S502, inputting the impact value of the electromagnetic information data set, the electromagnetic source distribution map set and the terrain information of the target area on the electromagnetic environment effect; Step S503: output the impact values ​​of electromagnetic signals in different directions of the terrain information of the target area.

9. The electromagnetic environment effect assessment system based on multi-source data according to claim 8, characterized in that: The impact value assessment model includes a hidden layer and a classifier; The hidden layer inputs the electromagnetic information data set, the electromagnetic source distribution map set and the impact value of the terrain information of the target area on the electromagnetic environment effect, and outputs the first updated feature; The first update feature is input into the classifier, and the impact value of the electromagnetic signal of the target area on the terrain information in different directions is output.

10. The electromagnetic environment effect assessment system based on multi-source data according to claim 8, characterized in that: The training samples used to train the influence value assessment model include: Select an area containing multiple electromagnetic sources as the target training area, obtain the influence values ​​of the temperature and humidity information, electromagnetic intensity information, electromagnetic source location information, electromagnetic intensity information of the electromagnetic source and terrain information of the target training area on the electromagnetic environment effect, build a simulation platform based on the above information, adjust the value of one of the parameters each time, and each adjustment serves as sample data of a training sample; Sample labels are obtained through calibration.

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