CN115078850A - Communication base station radiation detection system - Google Patents
Communication base station radiation detection system Download PDFInfo
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Abstract
The invention discloses a communication base station radiation detection system, which mainly comprises a storage module, a detection acquisition module, a central module, an environment analysis module, an attenuation analysis module, a radiation analysis module, a comparison module and an alarm module, wherein the detection acquisition module acquires detection data of environmental influence caused by electromagnetic radiation and electromagnetic radiation in a coverage area of a base station, the attenuation analysis module analyzes the attenuation process of the electromagnetic radiation in the coverage area of the base station to obtain an attenuation analysis result, the environment analysis module analyzes environmental influence factors in the coverage area of the base station to obtain an environment analysis result and sends the environment analysis result to the radiation analysis module, the radiation analysis module performs radiation analysis according to the detection data to obtain a radiation analysis result, and the comparison module compares the radiation analysis result with a laboratory analysis value of the electromagnetic radiation according to the radiation analysis result, the monitoring of the operating state of the base station and the electromagnetic radiation is improved by analyzing the detection data.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a radiation detection system of a communication base station.
Background
With the continuous development of wireless communication technology, mobile communication provides great convenience for daily life, but with the construction of a large number of base stations, people are more and more worried about electromagnetic radiation of the base stations, the electromagnetic radiation of different frequency bands has different influences on human health, although the electromagnetic radiation generated when the base stations normally operate is within the range specified by the national standard and does not have influences on human health, when the infrastructure of the base stations is easily damaged, such as skin breakage and the like, the generated actual electromagnetic radiation is uncertain whether within the range specified by the country, particularly, the telephone traffic of different time periods is different, the larger the telephone traffic of the base stations is, the larger the generated electromagnetic radiation is, when the infrastructure of the base stations is damaged, the deviation of the generated electromagnetic radiation also changes along with the change of time and telephone traffic, and meanwhile, the electromagnetic radiation of the base stations is also influenced by the environment near the position of the base stations, therefore, the detection of the electromagnetic radiation of the base station in the actual environment has a vital significance for detecting the normal operation of the base station and the body health of the user, and in order to monitor and manage the actual electromagnetic radiation through the detection of the electromagnetic radiation of the base station, when the electromagnetic radiation of the base station is found to be abnormal, the maintenance of the base station is carried out in time so as to ensure the health and safety of the user population, the invention provides the communication base station radiation detection system.
Disclosure of Invention
In view of the above situation, and in order to overcome the defects of the prior art, an object of the present invention is to provide a radiation detection system for a communication base station, wherein the system analyzes a dynamic influence function of a dynamic barrier in a coverage area of the base station through a combination of analysis processes of an environment analysis module and an attenuation analysis module, obtains an influence factor of the dynamic barrier through a function which is established with a change function l (t) and changes with time, obtains an environment analysis result through evaluation and analysis according to a fuzzy comprehensive evaluation method, analyzes detection data according to the environment analysis result to obtain a radiation analysis result, improves accuracy of the radiation analysis through a combination of the environment analysis and the radiation analysis, realizes safe use monitoring of the base station through the radiation analysis, and guarantees health and safety of user groups.
The technical scheme includes that the communication base station radiation detection system comprises a storage module, a detection acquisition module, a central module, an environment analysis module, an attenuation analysis module, a radiation analysis module, a comparison module and an alarm module, wherein an electromagnetic radiation detector of the detection acquisition module detects electromagnetic radiation in a coverage area of a base station to obtain detection data and stores the detection data in the storage module, the attenuation analysis module analyzes the attenuation process of the electromagnetic radiation in the coverage area of the base station to obtain an attenuation analysis result and sends the attenuation analysis result to the environment analysis module and the radiation analysis module, the environment analysis module analyzes environmental influence factors in the coverage area of the base station to obtain an environment analysis result and sends the environment analysis result to the radiation analysis module, and the radiation analysis module performs radiation analysis by combining the attenuation analysis result and the environment analysis module to obtain a radiation analysis result of the base station, then the comparison module compares the radiation analysis result with the laboratory analysis value of the electromagnetic radiation, and when the electromagnetic radiation of the base station is abnormal, the alarm module sends an alarm signal;
the specific analysis flow of the system is as follows:
(1) the attenuation analysis module analyzes the attenuation of the wireless signal of the base station according to the acquired detection data and establishes a change function L (t) changing along with time t, and the attenuation analysis module sends an attenuation analysis result comprising the change function L (t) to the environment analysis module and the radiation analysis module;
(2) the environment analysis module is used for analyzing the environment of a coverage area of the base station by combining the attenuation analysis result to obtain an environment analysis result, firstly, the environment analysis module is used for analyzing dynamic obstacles in the coverage area of the base station to obtain a dynamic influence function, and the dynamic influence function of the dynamic obstacles changing along with time is corresponding to a change function L (t), secondly, the environment analysis module is used for comprehensively analyzing the influence of a fuzzy comprehensive evaluation method on the coverage area of the base station to obtain an environment comprehensive influence index, and the analysis formula of the analysis function of the dynamic influence index of the dynamic obstacles is as follows:
wherein Q is the dynamic influence index of dynamic obstacles in the radiation range of a base station, p i Is the dynamic change parameter of the dynamic barrier i, v is the number of dynamic barriers, s i Amount of absorbed radiation for dynamic obstacle i, C i Is the evaluation criterion of the obstacle i, w is the position number of the dynamic obstacle i, t i_max For the time of w positions moved by a dynamic obstacle i, a function of attenuation and time represented by a change function L (t) in the coverage range of a base station is changed, a dynamic influence index of the dynamic obstacle represents the influence of all dynamic obstacles on wireless signal transmission, a dynamic influence function Q (t) is obtained by analyzing the change of the dynamic influence index along with the time t, the dynamic influence function of the dynamic obstacle can influence the change function of the electromagnetic radiation attenuation, an environment analysis module utilizes a time function H (L (t), Q (t) represents the corresponding relation of the change function L (t) of the attenuation and the dynamic influence function Q (t) of the dynamic influence index, the telephone traffic of the base station at different time points changes, the electromagnetic radiation corresponding to the base station changes, L (t) and Q (t) change along with the time t, and the time function H (L (t), q (t)) analysis to obtain a time-dependent overall influence factor;
and the environment analysis module carries out comprehensive evaluation on the influence factors of the dynamic obstacles and the static influence factors in the coverage environment of the base station by using a fuzzy comprehensive evaluation method to obtain an environment influence evaluation result, and the element of U is set as U-U 1 ，u 2 ，u 3 ......u n Wherein u is i ，i∈[1，n]All the influence factors in the coverage area of the base station are represented, where n represents the number of the influence factors, F is a limited fuzzy subset of U, and F satisfies the following relation:
wherein, mu i Represents the corresponding element u i Membership value to F, i ∈ [1, n ]]Environment analysis module based on detectionIn data
Determining an evaluation object of the environment analysis module, and representing the evaluation object by using a vector V, wherein V is { V ═ V 1 ，v 2 ，v 3 ...，v k In which v is i ，i∈[1，k]The evaluation index of the evaluation object is shown, the environment analysis module determines a grade set A by establishing an evaluation element set X and an evaluation element weight W,
let the fuzzy relation of X → A be R, and establish the membership matrix R ═ R ij ) m×n′ Wherein r is ij Is a membership function value r ij Denotes the i-th element x i Looking at belonging to the jth class A j According to the maximum membership degree principle, the environment analysis module performs comprehensive evaluation to obtain an environment analysis result and sends the environment analysis result to the radiation analysis module;
(3) the radiation analysis module performs radiation analysis on the detection data radiated by the base station by combining the environment analysis result and the attenuation analysis result to obtain a radiation analysis result, the telephone traffic of the base station at different time points is different, and t is j For the acquisition of time points, each time point t j Corresponding traffic is h j A corresponding function H (t) of the telephone traffic and a time point is obtained through linear analysis, the telephone traffic and the electromagnetic radiation of the base station form a positive correlation relation, the radiation analysis module obtains a radiation analysis result through the analysis of the detection data, and sends the radiation analysis result to the comparison module;
(4) the comparison module compares the deviation value S (t) of the electromagnetic radiation in the radiation analysis result with the laboratory analysis value S of the electromagnetic radiation Sign board Comparing according to S (t) and S Sign board And when the running state is abnormal, the alarm module reports abnormal information to the detection personnel.
The radiation analysis module performs radiation analysis on the detection data of the base station radiation by combining the environment analysis result and the attenuation analysis result to obtain a radiation analysis result, selects N detection positions for electromagnetic radiation detection in a base station radiation area, and carries out detection on each detection positionPosition is denoted as c i ，i∈[1，N]And the electromagnetic radiation detected at different detection positions corresponding to different acquisition time points is represented by a symbol, which is recorded as
i∈[1，N]，j∈[1，M]X, y and z respectively represent coordinates of the detection position in different directions, the vertical direction of the base station is taken as a z-axis, the horizontal plane of the base station is taken as a plane of the x-axis and the y-axis,
representing the actual detected values, the radiation analysis module first of all being based on c in the detected data i Actual detection value of detection position
Analyzing to obtain a function changing along with the collection time point
Then according to
i∈[1，N]And analyzing the formed equation set to obtain a weight vector of the acquisition position, and analyzing the weight vector, the function H (t), the attenuation analysis result and the environment analysis result to obtain a deviation value S (t).
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages;
1. the attenuation analysis module of the system analyzes the attenuation of electromagnetic radiation generated by a base station according to detection data to obtain a change function L (t) changing along with time, and sends the change function to an environment analysis module, then the environment analysis module analyzes the influence of a dynamic barrier in the environment covered by the base station to obtain a dynamic influence function, the environment analysis module establishes a time function changing along with time according to the dynamic influence function and the change function, and obtains a comprehensive influence factor of the dynamic barrier through the time function, finally the environment analysis module evaluates and analyzes the total influence in the coverage area of the base station by using a fuzzy comprehensive evaluation method to obtain an environment analysis result, and sends the environment analysis result to a radiation analysis module, and the system obtains the comprehensive influence factor of the environment fluctuating along with time through the dynamic analysis of the attenuation of the electromagnetic radiation in the environment and the dynamic barrier, and then comprehensive evaluation and analysis are carried out on the influence factors of the environment through a fuzzy environment evaluation method, so that the accuracy of environment analysis on the coverage area of the electromagnetic radiation of the base station is greatly improved, and the monitoring of the electromagnetic radiation of the base station by detection personnel is improved.
2. The radiation analysis module in the system is combined with the detection data of the electromagnetic radiation of the environment analysis modularity base station to analyze to obtain a radiation analysis module, firstly, the radiation analysis module analyzes to obtain the deviation value of the electromagnetic radiation analysis of the base station according to the function of the telephone traffic of different positions at different acquisition moments along with the time, then according to the actual detection values of different positions at different acquisition time points, the environment analysis result and the function of the telephone traffic, and the deviation value is used for representing the deviation between the actual analysis value of the electromagnetic radiation of the base station and the laboratory analysis value when the comprehensive influence changes along with the time, the telephone traffic and the environment, therefore, the running state of the base station is analyzed according to the deviation value, the running state of the base station is monitored through the analysis of the radiation analysis module on the actually acquired detection data of the base station, and the health safety of a user is guaranteed.
Drawings
FIG. 1 is a flow chart of the overall analysis of the system;
FIG. 2 is an overall block diagram of the system;
FIG. 3 is a flow chart of the computing of the environment analysis module of the present system.
Detailed Description
The foregoing and other aspects, features and advantages of the invention will be apparent from the following more particular description of embodiments of the invention, as illustrated in the accompanying drawings in which reference is made to figures 1 to 3. The structural contents mentioned in the following embodiments are all referred to the attached drawings of the specification.
The main function of the communication base station is to realize wireless communication by providing wireless signal coverage, and the transmission and reception of wireless signals are realized by a transmitting antenna of the base station, the transmitting antenna can generate electromagnetic radiation with certain intensity, the electromagnetic radiation can influence the health of people in a certain frequency range, when the transmitting antenna of the base station breaks the skin, the electromagnetic radiation of the transmitting antenna can change, when the telephone traffic of the base station changes, the electromagnetic radiation also changes, in order to ensure the safe use detection of the base station and the health of resident users, the detection personnel need to detect the electromagnetic radiation of the coverage area of the base station, the system provides a communication base station radiation detection system, which comprises a storage module, a detection acquisition module, a center module, an environment analysis module, an attenuation analysis module, a radiation analysis module, a comparison module, a data acquisition module, a data processing module and a data processing module, An alarm module, an electromagnetic radiation detector of the detection acquisition module detects the electromagnetic radiation in the coverage area of the base station to obtain detection data, the detection data is stored in a storage module, an attenuation analysis module analyzes the attenuation process of the electromagnetic radiation in the coverage area of the base station to obtain an attenuation analysis result, and the attenuation analysis result is sent to an environment analysis module and a radiation analysis module, the environment analysis module analyzes the environmental influence factors in the coverage area of the base station to obtain an environment analysis result, the environment analysis result is sent to a radiation analysis module, the radiation analysis module performs radiation analysis by combining the attenuation analysis result and the environment analysis module to obtain a radiation analysis result of the base station, then a comparison module compares the radiation analysis result with a laboratory analysis value of electromagnetic radiation according to the radiation analysis result, and when the electromagnetic radiation of the base station is abnormal, an alarm signal is sent by an alarm module;
the specific analysis flow of the system is as follows:
(1) the detection data of the electromagnetic radiation obtained by detecting the electromagnetic radiation in the coverage area of the base station by a detector is influenced by dynamic influence factors in the coverage area, the dynamic influence factors can influence the attenuation of the electromagnetic radiation, the attenuation analysis module analyzes the attenuation of a wireless signal of the base station according to the collected detection data and establishes a change function L (t) changing along with time t, the attenuation of the electromagnetic radiation also changes along with time due to the influence of the dynamic influence factors in the coverage area, the attenuation analysis module sends an attenuation analysis result comprising the change function L (t) to the environment analysis module and the radiation analysis module, and the attenuation analysis module has the following analysis formula on the attenuation of the electromagnetic radiation of the base station:
L＝K 1 +K 2 lgd+K 3 lgh te +K 4 L diffraction +K 5 lgh te lgd+K 6 lgh re +K 7 f clutter′
wherein, K 1 To attenuate constant, K 2 Is a distance attenuation factor, d is the distance from the detecting instrument to the base station, K 3 For the base station antenna high correlation factor, h te Is the base station antenna height, K 4 For winding a loss related factor, K 5 Is a base station antenna height and distance dependent factor, K 6 For the mobile station antenna height correlation factor, K 7 Is a ground object type factor, L diffraction Is diffraction loss, f clutter For the average weighted loss of the landform, L obtained by analyzing the attenuation by the attenuation analysis module is state values of different positions and different acquisition time points, the attenuation process is influenced by a dynamically changed object in the environment, and the influence of the dynamic change on the attenuation is obtained by analyzing a change function L (t);
(2) the environment analysis module is used for analyzing the environment of a coverage area of the base station by combining the attenuation analysis result to obtain an environment analysis result, firstly, the environment analysis module is used for analyzing dynamic obstacles in the coverage area of the base station to obtain a dynamic influence function, and the dynamic influence function of the dynamic obstacles changing along with time is corresponding to a change function L (t), secondly, the environment analysis module is used for comprehensively analyzing the influence of a fuzzy comprehensive evaluation method on the coverage area of the base station to obtain an environment comprehensive influence index, and the analysis formula of the analysis function of the dynamic influence index of the dynamic obstacles is as follows:
wherein Q is the dynamic influence index of dynamic obstacles in the radiation range of a base station, p i Is the dynamic change parameter of the dynamic barrier i, v is the number of dynamic barriers, s i Amount of absorbed radiation for dynamic obstacle i, C i Is the evaluation criterion of the obstacle i, w is the position number of the dynamic obstacle i, t i_max For the time of w positions moved by a dynamic obstacle i, a function of attenuation and time represented by a change function L (t) in the coverage area of a base station is obtained, a dynamic influence index of the dynamic obstacle represents the influence of all dynamic obstacles on wireless signal transmission, a dynamic influence function Q (t) is obtained by analyzing the change of the dynamic influence index along with the time t, the dynamic influence function of the dynamic obstacle can influence the change function of the electromagnetic radiation attenuation, an environment analysis module utilizes the time functions H (L) (t), Q (t) to represent the corresponding relation of the change function L (t) of the attenuation and the dynamic influence function Q (t) of the dynamic influence index, the telephone traffic of the base station at different time points changes, the electromagnetic radiation corresponding to the base station changes, and L (t) and Q (t) change along with the time t, and the time functions H (L (t), q (t)) analyzing to obtain a time-related comprehensive influence factor, analyzing a time function to obtain a fluctuation error value changing along with the time, and combining the fluctuation error value with a dynamic monitoring index in a coverage area to obtain a comprehensive influence factor, wherein the comprehensive influence factor represents an influence factor which is influenced on attenuation and related to a dynamic barrier;
and the environment analysis module carries out comprehensive evaluation on the influence factors of the dynamic obstacles and the static influence factors in the coverage environment of the base station by using a fuzzy comprehensive evaluation method to obtain an environment influence evaluation result, and the element of U is set as U-U 1 ，u 2 ，u 3 ......u n Wherein u is i ，i∈[1，n]All the influence factors in the coverage area of the base station are shown, wherein n represents the number of the influence factors, F is a limited fuzzy subset of U, and the relationship satisfied by F is as follows:
wherein, mu i Represents the corresponding element u i Membership value to F, i ∈ [1, n ]]The environment analysis module is used for analyzing the environment according to the detection data
Determining an evaluation object of the environment analysis module, and representing the evaluation object by using a vector V, wherein V is { V ═ V 1 ，v 2 ，v 3 ...，v k In which v is i ，i∈[1，k]The environment analysis module establishes an evaluation element set X and an evaluation element weight W to determine a grade set A, and establishes a fuzzy relation of X → A as R and a membership matrix R ═ R (R) ij ) m×n′ Wherein r is ij Is a membership function value r ij Denotes the i-th element x i Looking at belonging to the jth class A j According to the maximum membership degree principle, the environment analysis module performs comprehensive evaluation to obtain an environment analysis result and sends the environment analysis result to the radiation analysis module;
(3) the radiation analysis module performs radiation analysis on the detection data radiated by the base station by combining the environment analysis result and the attenuation analysis result to obtain a radiation analysis result, the telephone traffic of the base station at different time points is different, and t is j For the acquisition of time points, each time point t j Corresponding traffic is h j The method comprises the steps that a corresponding function H (t) of telephone traffic and a time point is obtained through linear analysis, the telephone traffic and electromagnetic radiation of a base station form a positive correlation relation, the probability of generating abnormal electromagnetic radiation changes in the process that the telephone traffic changes along with time, the radiation analysis module improves the accuracy of radiation analysis according to the analysis of the corresponding function of the telephone traffic and the time in the process of analyzing the electromagnetic radiation, and the radiation analysis module obtains a radiation analysis result through the analysis of detection data and sends the radiation analysis result to a comparison module;
(4) the comparison module compares the deviation value S (t) of the electromagnetic radiation in the radiation analysis result with the laboratory analysis value S of the electromagnetic radiation Sign board Comparing according to S (t) and S Sign board And when the running state is abnormal, the alarm module reports abnormal information to the detection personnel.
The radiation analysis module performs radiation analysis on detection data of base station radiation by combining the environment analysis result and the attenuation analysis result to obtain a radiation analysis result, selects N detection positions for electromagnetic radiation detection in a base station radiation area, and records each detection position as c i ，i∈[1，N]And the electromagnetic radiation detected at different detection positions corresponding to different acquisition time points is represented by a symbol, which is recorded as
i∈[1，N]，j∈[1，M]X, y and z respectively represent coordinates of the detection position in different directions, the vertical direction of the base station is taken as a z-axis, the horizontal plane of the base station is taken as a plane of the x-axis and the y-axis,
representing the actual detected values, the radiation analysis module first of all being based on c in the detected data i Actual detection value of detection position
Analyzing to obtain a function changing along with the collection time point
Then according to
i∈[1，N]The system comprises a radiation analysis module, a test data analysis module and a laboratory, wherein the radiation analysis module analyzes a formed equation set to obtain a weight vector of an acquisition position, and then analyzes the weight vector, a function H (t), an attenuation analysis result and an environment analysis result to obtain a deviation value S (t), the test data analyzed by the radiation analysis module is a numerical value of actual radiation of a base station after the actual radiation passes through the action of environmental influence factors in a coverage area, the deviation value of electromagnetic radiation is obtained by analyzing the test data, and then the test data is analyzed in the laboratory to obtain a deviation value of the electromagnetic radiationAnd comparing the values in the ideal environment.
The comparison module receives the radiation analysis result sent by the radiation analysis module and calls the laboratory analysis value S stored in the storage module through the center module Sign board ，S Sign board Is a standard value obtained by the operation data of the base station S under the condition that technicians normally operate the base station and the electromagnetic radiation meets the national standard Sign board The comparison module analyzes actual detection data to obtain an electromagnetic radiation deviation value S (t) and an electromagnetic radiation laboratory analysis value S Sign board Comparing when S (t) exceeds S Sign board When the operation state of the base station is abnormal, the S (t) does not exceed the S Sign board Meanwhile, the operation state of the base station is normal.
The wireless signal in the coverage area of the base station is detected at different time points by the detection acquisition module to obtain detection data, the detection data comprises data of different positions acquired at different acquisition time points, the detection acquisition module acquires environmental information in the coverage area of the base station, and the environmental information comprises the height of the base station, building information, obstacle information and dynamic information in the coverage area.
When the comparison module judges that the base station operates abnormally according to the radiation analysis result, the alarm module sends alarm information to detection personnel and uploads the base station information which operates abnormally, and the detection personnel detect the electromagnetic radiation of the base station again according to the base station information.
When the invention is used, the system mainly comprises a storage module, a detection and acquisition module, a central module, an environment analysis module, an attenuation analysis module, a radiation analysis module, a comparison module and an alarm module, wherein the detection and acquisition module acquires data of environmental influence which influences electromagnetic radiation and electromagnetic radiation in a coverage area of a base station and sends the acquired detection data to the storage module, the storage module stores all data generated in the system, the attenuation analysis module analyzes the attenuation process of the electromagnetic radiation in the coverage area of the base station to obtain an attenuation analysis result and sends the attenuation analysis result to the environment analysis module and the radiation analysis module, the environment analysis module analyzes the influence of dynamic obstacles in the environment covered by the base station to obtain a dynamic influence function, and the environment analysis module establishes a function which changes along with time according to the dynamic influence function and the change function, the influence factors of the dynamic barriers are obtained through function solution, finally, the environment analysis module utilizes a fuzzy comprehensive evaluation method to evaluate and analyze the total influence in the coverage area of the base station to obtain an environment analysis result, and sends the environment analysis result to the radiation analysis module, the radiation analysis module combines the attenuation analysis result and the environment analysis module to perform radiation analysis to obtain a radiation analysis result of the base station, then the comparison module compares the radiation analysis result with a laboratory analysis value of electromagnetic radiation according to the radiation analysis result, when the electromagnetic radiation of the base station is abnormal, the alarm module sends an alarm signal, the accuracy of environment analysis of the coverage area of the electromagnetic radiation of the base station is improved through the comprehensive evaluation and analysis of the influence factors of the environment by the environment analysis module, the radiation analysis module analyzes the detection data actually collected by the base station to improve the monitoring of electromagnetic radiation of a detection person on the base station, the running state of the base station is monitored, and the health and safety of the user are guaranteed.
While the invention has been described in further detail with reference to specific embodiments thereof, it is not intended that the invention be limited to the specific embodiments thereof; for those skilled in the art to which the present invention pertains and related technologies, the extension, operation method and data replacement should fall within the protection scope of the present invention based on the technical solution of the present invention.
Claims (5)
1. A communication base station radiation detection system is characterized by comprising a storage module, a detection acquisition module, a center module, an environment analysis module, an attenuation analysis module, a radiation analysis module, a comparison module and an alarm module, wherein an electromagnetic radiation detector of the detection acquisition module performs electromagnetic radiation detection on the coverage area of a base station to obtain detection data and stores the detection data in the storage module, the attenuation analysis module analyzes the attenuation process of electromagnetic radiation of the coverage area of the base station to obtain an attenuation analysis result and sends the attenuation analysis result to the environment analysis module and the radiation analysis module, the environment analysis module analyzes environmental influence factors in the coverage area of the base station to obtain an environment analysis result and sends the environment analysis result to the radiation analysis module, and the radiation analysis module performs radiation analysis by combining the attenuation analysis result and the environment analysis module to obtain a radiation analysis result of the base station, then the comparison module compares the radiation analysis result with the laboratory analysis value of the electromagnetic radiation, and when the electromagnetic radiation of the base station is abnormal, the alarm module sends an alarm signal;
the specific analysis flow of the system is as follows:
(1) the attenuation analysis module analyzes the attenuation of the wireless signal of the base station according to the acquired detection data and establishes a change function L (t) changing along with the time t, and the attenuation analysis module sends the attenuation analysis result comprising the change function L (t) to the environment analysis module and the radiation analysis module;
(2) the environment analysis module analyzes the environment of the coverage area of the base station by combining the attenuation analysis result to obtain an environment analysis result, firstly the environment analysis module analyzes the dynamic barrier in the coverage environment of the base station to obtain a dynamic influence function, and corresponds the dynamic influence function of the dynamic barrier changing along with time to a change function L (t), secondly the environment analysis module comprehensively analyzes the influence of the coverage area of the base station by using a fuzzy comprehensive evaluation method to obtain an environment comprehensive influence index, and the analysis formula of the analysis function of the dynamic influence index of the dynamic barrier is as follows:
wherein Q is the dynamic influence index of dynamic obstacles in the radiation range of a base station, p i Is a dynamically changing parameter of a dynamic obstacle i, and v is a dynamicNumber of obstacles, s i Amount of absorbed radiation for dynamic obstacle i, C i Is the evaluation criterion of the obstacle i, w is the position number of the dynamic obstacle i, t i_max For the time of w positions moved by a dynamic obstacle i, a function of attenuation and time represented by a change function L (t) in the coverage area of a base station is obtained, a dynamic influence index of the dynamic obstacle represents the influence of all dynamic obstacles on wireless signal transmission, a dynamic influence function Q (t) is obtained by analyzing the change of the dynamic influence index along with the time t, the dynamic influence function of the dynamic obstacle can influence the change function of the electromagnetic radiation attenuation, an environment analysis module utilizes the time functions H (L) (t), Q (t) to represent the corresponding relation of the change function L (t) of the attenuation and the dynamic influence function Q (t) of the dynamic influence index, the telephone traffic of the base station at different time points changes, the electromagnetic radiation corresponding to the base station changes, and L (t) and Q (t) change along with the time t, and the time functions H (L (t), q (t)) analysis to obtain a time-dependent overall influence factor;
and the environment analysis module carries out comprehensive evaluation on the influence factors of the dynamic obstacles and the static influence factors in the coverage environment of the base station by using a fuzzy comprehensive evaluation method to obtain an environment influence evaluation result, and the element of U is set as U-U 1 ，u 2 ，u 3 ......u n Wherein u is i ，i∈[1，n]All the influence factors in the coverage area of the base station are shown, wherein n represents the number of the influence factors, F is a limited fuzzy subset of U, and the relationship satisfied by F is as follows:
wherein, mu i Represents the corresponding element u i Membership value to F, i ∈ [1, n ]]The environment analysis module is used for analyzing the environment according to the detection data
Determining an evaluation object of the environment analysis module, and representing the evaluation object by using a vector V, wherein V is { V ═ V 1 ，v 2 ，v 3 ...，v k In which v is i ，i∈[1，k]The environment analysis module establishes an evaluation element set X and an evaluation element weight W to determine a grade set A, and establishes a fuzzy relation of X → A as R and a membership matrix R ═ R (R) ij ) m×n Wherein r is ij Is a membership function value r ij Denotes the i-th element x i Looking at belonging to the jth class A j According to the maximum membership degree principle, the environment analysis module performs comprehensive evaluation to obtain an environment analysis result and sends the environment analysis result to the radiation analysis module;
(3) the radiation analysis module performs radiation analysis on the detection data radiated by the base station by combining the environment analysis result and the attenuation analysis result to obtain a radiation analysis result, the telephone traffic of the base station at different time points is different, and t is j For the acquisition of time points, each time point t j Corresponding traffic is h j The system comprises a radiation analysis module, a comparison module and a control module, wherein the radiation analysis module analyzes detection data to obtain a radiation analysis result and sends the radiation analysis result to the comparison module;
(4) the comparison module compares the deviation value S (t) of the electromagnetic radiation in the radiation analysis result with the laboratory analysis value S of the electromagnetic radiation Sign board Comparing according to S (t) and S Sign board And when the running state is abnormal, the alarm module reports abnormal information to the detection personnel.
2. The system of claim 1, wherein the radiation analysis module performs radiation analysis on the detection data of the base station radiation in combination with the environment analysis result and the attenuation analysis result to obtain a radiation analysis result, selects N detection positions for electromagnetic radiation detection in a base station radiation area, and records each detection position as c i ，i∈[1，N]And the electromagnetic radiation detected at different detection positions corresponding to different acquisition time points is represented by a symbolIs marked as
x, y and z respectively represent coordinates of the detection position in different directions, the vertical direction of the base station is taken as a z-axis, the horizontal plane of the base station is taken as a plane of the x-axis and the y-axis,
representing the actual detected values, the radiation analysis module first of all based on c in the detected data i Actual detection value of detection position
Analyzing to obtain a function changing along with the collection time point
Then according to
And analyzing the formed equation set to obtain a weight vector of the acquisition position, and analyzing the weight vector, the function H (t), the attenuation analysis result and the environment analysis result to obtain a deviation value S (t).
3. The radiation detection system of claim 1, wherein the comparison module receives the radiation analysis result sent by the radiation analysis module, and retrieves the laboratory analysis value S stored in the storage module through the center module Sign board ，S Sign board Is a standard value obtained by the operation data of the base station S under the condition that technicians normally operate the base station and the electromagnetic radiation meets the national standard Sign board The comparison module analyzes actual detection data to obtain an electromagnetic radiation deviation value S (t) and an electromagnetic radiation laboratory analysis value S Sign board Comparing when S (t) exceeds S Sign board When the operation state of the base station is abnormal, the S (t) does not exceed the S Sign board Meanwhile, the operation state of the base station is normal.
4. The system of claim 1, wherein the detection and collection module detects wireless signals in the coverage area of the base station at different time points to obtain detection data, the detection data includes data of different positions collected at different collection time points, the detection and collection module collects environmental information in the coverage area of the base station, and the environmental information includes height of the base station, building information in the coverage area, obstacle information, and dynamic information.
5. The radiation detection system of claim 1, wherein when the comparison module determines that the base station is abnormally operated according to the radiation analysis result, the alarm module sends alarm information to a detection person, uploads the abnormally operated base station information, and the detection person performs re-detection on the electromagnetic radiation of the base station according to the base station information.
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