Distributed multi-parameter disaster prevention monitoring and positioning system for power transmission line based on OPGW optical cable

Abstract

The present application relates to the technical field of power transmission line disaster prevention monitoring, and discloses a power transmission line distributed multi-parameter disaster prevention monitoring positioning system based on OPGW optical cable, which scientifically monitors the disaster types at different positions of the power transmission line according to the physical characteristic data of the OPGW optical cable at the positions of the power transmission line, and combines intelligent search algorithm with the standard stored OPGW optical cable physical characteristic data of different power transmission line disaster types to realize point-to-point monitoring of the power transmission line disaster types based on multiple parameters; the system accurately positions the covered position range of the disaster of the power transmission line based on the disaster type identification data at the positions of the power transmission line, the disaster type summary data of the power transmission line and the intelligent search algorithm, realizes the digital positioning of the covered position information of all kinds of disasters of the power transmission line, and realizes the multi-level evaluation of the disaster types and positions of the power transmission line.

Description

Technical Field

[0001] This invention relates to the technical field of disaster prevention monitoring for power transmission lines, specifically to a distributed multi-parameter disaster prevention monitoring and positioning system for power transmission lines based on OPGW optical cables. Background Technology

[0002] OPGW (Optical Fiber-Coated Ground Wire) is a special type of optical cable that combines communication optical fibers and the overhead ground wire of power transmission lines. OPGW consists of an outer layer and an inner layer. The outer layer is made of aluminum-clad steel wire or aluminum alloy wire stranded together, possessing all the functions of a traditional ground wire, including lightning protection, short-circuit current shunting, and mechanical support. The inner layer contains optical fiber units in the center or in a layered structure for communication. OPGW is installed on top of power transmission line towers, replacing traditional metal ground wires. While OPGW allows for monitoring of the entire power transmission line's operational status, existing OPGW power transmission line disaster monitoring systems cannot perform efficient point-to-point analysis of disaster types or accurately pinpoint the coverage area of ​​disasters, thus reducing the accuracy and applicability of disaster monitoring.

[0003] Chinese invention patent application CN120222627A, published on June 27, 2025, discloses a method and system for monitoring and preventing icing on overhead transmission lines. This method involves collecting meteorological parameters, stress data, and icing images through distributed sensing nodes; performing spatiotemporal synchronization processing on the data; calculating icing status information; assessing the icing risk level; selectively activating de-icing devices; storing data; and extracting patterns to optimize disaster prevention plans. However, the above technical solution cannot accurately locate the coverage area of ​​the transmission line. Summary of the Invention

[0004] (a) Technical problems to be solved To address the shortcomings of existing OPGW optical cable transmission line disaster prevention monitoring systems, which cannot perform efficient point-to-point analysis of disaster types occurring on transmission lines or accurately pinpoint the coverage area of ​​disasters, thus reducing the accuracy and applicability of disaster prevention monitoring, this new system aims to achieve the following: real-time acquisition of OPGW backscattered light signal data at the transmission line location; efficient and autonomous extraction of physical feature data from OPGW backscattered light signals at the transmission line location; scientific identification of OPGW optical cable physical feature data at the transmission line location; intelligent identification of disaster types at the transmission line location; accurate positioning of the disaster coverage area; and realization of intelligent and precise distributed multi-parameter monitoring of transmission line disasters, thereby improving the accuracy and applicability of disaster prevention monitoring for transmission lines.

[0005] (II) Technical Solution This invention is achieved through the following technical solution: a distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cables, the system comprising the following: The transmission line disaster prevention monitoring data processing module is used to collect OPGW backscattered light signal data at the location of the transmission line, extract and process the physical characteristic parameters of the OPGW backscattered light signal at different locations of the transmission line to obtain physical characteristic data of the OPGW backscattered light signal at the location of the transmission line; and identify and process the physical characteristic parameters of the OPGW optical cable at different locations of the transmission line to obtain physical characteristic data of the OPGW optical cable at the location of the transmission line. The transmission line disaster identification module identifies the types of disasters occurring at different locations along the transmission line based on the physical characteristic parameters of the OPGW optical cables at different locations, obtaining disaster type identification data for transmission line locations; it then performs clustering processing on the disaster types occurring along the transmission line to obtain summary data on transmission line disaster types; finally, it judges the disaster occurrence status of the transmission line to obtain disaster occurrence judgment data; and when no disaster exists, it directly terminates the current transmission line disaster prevention monitoring operation. The transmission line disaster location module analyzes and processes the coverage area of ​​transmission line disasters to obtain data on the coverage area of ​​different types of transmission line disasters; it also constructs transmission line disaster monitoring result data and executes transmission line disaster monitoring feedback operations. The transmission line disaster prevention monitoring data processing module includes a transmission line location OPGW backscattered light signal acquisition unit, a transmission line location OPGW backscattered light signal physical feature extraction unit, a standard OPGW backscattered light signal physical feature data storage unit for different transmission line OPGW optical cable physical feature parameters, and a transmission line location OPGW optical cable physical feature data identification unit. The OPGW backscattered light signal acquisition unit at the transmission line location acquires OPGW backscattered light signal data at the transmission line location using a distributed fiber optic sensor demodulator. The OPGW backscattered light signal physical feature extraction unit at the transmission line location, based on the OPGW backscattered light signal data and combined with the distributed fiber optic sensor demodulator, extracts physical feature parameters of the OPGW backscattered light signals at different locations along the transmission line to obtain physical feature data of the OPGW backscattered light signals at the transmission line location. The physical feature parameters of the OPGW optical cables at different transmission lines are... The quasi-OPGW backscattered optical signal physical feature data storage unit is used to store standard OPGW backscattered optical signal physical feature data of OPGW optical cables with different transmission lines; the transmission line location OPGW optical cable physical feature data identification unit performs physical feature parameter identification processing of OPGW optical cables at different locations of the transmission line based on the transmission line location OPGW backscattered optical signal physical feature data and the standard OPGW backscattered optical signal physical feature data of OPGW optical cables with different transmission lines, to obtain the transmission line location OPGW optical cable physical feature data; The transmission line disaster identification module includes a data storage unit for physical characteristics of standard transmission line OPGW optical cables for different transmission line disaster types, a transmission line location disaster type identification unit, a transmission line disaster type clustering unit, and a transmission line disaster judgment unit; The standard transmission line OPGW optical cable physical feature data storage unit for different transmission line disaster types is used to store physical feature data of standard transmission line OPGW optical cables for different transmission line disaster types; the transmission line location disaster type identification unit performs disaster type identification processing at different locations of the transmission line based on the physical feature data of the transmission line location OPGW optical cables and the physical feature data of standard transmission line OPGW optical cables for different transmission line disaster types, to obtain transmission line location disaster type identification data; the transmission line disaster type clustering unit performs disaster type clustering processing on the transmission line based on the disaster type identification data, to obtain transmission line disaster type summary data; the transmission line disaster judgment unit performs disaster occurrence status judgment processing on the transmission line based on the transmission line disaster type summary data, to obtain transmission line disaster occurrence judgment data; The transmission line disaster location module includes a transmission line disaster coverage range analysis unit, a transmission line disaster monitoring result collection unit, and a transmission line disaster monitoring feedback unit; The transmission line disaster coverage location range analysis unit analyzes and processes the coverage location range of transmission line disasters based on the transmission line location disaster type identification data and the transmission line disaster type summary data to obtain transmission line disaster type coverage location range data; the transmission line disaster monitoring result collection unit constructs transmission line disaster monitoring result data based on the transmission line disaster type coverage location range data and combined with data processing; the transmission line disaster monitoring feedback unit performs transmission line disaster monitoring feedback operations based on the transmission line disaster monitoring result data and in cooperation with the transmission line monitoring and control terminal.

[0006] Preferably, the steps for collecting OPGW backscattered light signal data at the transmission line location, extracting and processing the physical feature parameters of the OPGW backscattered light signals at different locations on the transmission line to obtain physical feature data of the OPGW backscattered light signals at the transmission line location, and identifying and processing the physical feature parameters of the OPGW optical cable at different locations on the transmission line to obtain physical feature data of the OPGW optical cable at the transmission line location are as follows: The system uses a distributed fiber optic sensor demodulator to transmit laser pulse signals online through the OPGW optical cable in the target disaster prevention monitoring transmission line, and simultaneously receives the OPGW backscattered light signal data reflected from the OPGW optical cable at different locations on the transmission line, generating a set of OPGW backscattered light signal data for each location on the transmission line. ,in Indicates the number of data collected in the transmission line. The transmission line location corresponds to the OPGW backscattered light signal data; where the transmission line location represents the location information of the OPGW backscattered light signal acquisition at the specific distance from the distributed fiber optic sensor demodulator in the transmission line; the transmission line location OPGW backscattered light signal data represents the light intensity signal data at different locations of the transmission line; Based on the OPGW backscattered light signal data set at the transmission line location, physical feature parameters of the OPGW backscattered light signal at different locations of the transmission line are extracted and processed to obtain the physical feature data set of the OPGW backscattered light signal at the transmission line location. Based on the physical feature data set of OPGW backscattered light signal at the transmission line location and the physical feature data matrix of OPGW backscattered light signal at different transmission lines, the physical feature parameters of OPGW optical cables at different locations of the transmission line are identified and processed to obtain the physical feature data set of OPGW optical cables at the transmission line location.

[0007] Preferably, the steps for extracting physical feature parameters of OPGW backscattered light signals at different locations of the transmission line based on the OPGW backscattered light signal data set at the transmission line location are as follows: Acquire the backscattered light signal data set of the OPGW at the location of the transmission line. ; The backscattered optical signal data set of the OPGW at the location of the transmission line was collected using a distributed fiber optic sensor demodulator. The OPGW backscattered light signal data of the transmission line location described in the text The physical feature parameters of the OPGW backscattered light signals at different locations along the transmission line were demodulated and extracted in an orderly manner according to the transmission line location number, and a set of physical feature data of the OPGW backscattered light signals at the transmission line location was constructed. ,in Indicates the first Physical characteristic data of OPGW backscattered light signals corresponding to the location of each transmission line, including the light intensity frequency, light intensity phase, light intensity amplitude, and light intensity period of the OPGW backscattered light signals at different locations of the transmission line.

[0008] Preferably, the steps for identifying the physical feature parameters of OPGW optical cables at different locations along the transmission line by using the physical feature data set of OPGW backscattered light signals at the transmission line location and the physical feature data matrix of OPGW optical cables for different transmission lines as standard OPGW backscattered light signals physical feature parameters, to obtain the physical feature data set of OPGW optical cables at the transmission line location, are as follows: Establish a standard physical characteristic parameter matrix for OPGW optical cables of different transmission lines and a physical characteristic data matrix for OPGW backscattered optical signals. ,in Indicates the first The physical characteristic parameters of OPGW optical cables for different transmission lines correspond to standard OPGW backscattered light signal physical characteristic data. These physical characteristic parameters include temperature, vibration, and strain parameters of the OPGW optical cable within the transmission line. The standard OPGW backscattered light signal physical characteristic data represents the standard OPGW backscattered light signal physical characteristic data set for different transmission line OPGW optical cable physical characteristic parameters. The physical feature data set of the OPGW backscattered light signal at the location of the transmission line. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line described in the text The physical characteristic data matrix of OPGW backscattered light signal is ordered according to the location number of the transmission line and the physical characteristic parameters of the OPGW optical cable of different transmission lines. The physical characteristic parameters of OPGW optical cables for different transmission lines described in the standard OPGW backscattered light signal physical characteristic data The physical characteristic parameters of the OPGW backscattered light signal of the transmission line are matched to search for physical characteristic data of the OPGW backscattered light signal at the location of the transmission line. Matching physical characteristic parameters of OPGW optical cables for different transmission lines, standard OPGW backscattered light signal physical characteristic data The corresponding physical characteristic parameters of OPGW optical cables for transmission lines were determined, and a set of physical characteristic data of OPGW optical cables at the locations of transmission lines was constructed. The process involves constructing a set of physical characteristic data for the OPGW optical cable at the location of the transmission line. The specific operating steps are as follows: Step 1321, Initialize the search space: Determine the physical parameter search role in the physical characteristic parameters of OPGW optical cables on different transmission lines, and the physical characteristic data matrix of OPGW backscattered light signals. The search boundary in the search space; the physical parameter search role in the physical characteristic parameters of OPGW optical cables in different transmission lines; the standard OPGW backscattered light signal physical characteristic data matrix. The formula for the search boundary in the search space is as follows: ,in Indicates the role of physical parameter search exist The physical characteristic parameters of OPGW optical cables for different transmission lines are described in the standard OPGW backscattered light signal physical characteristic data matrix. The location in the search space, and These represent the physical parameter search roles in the physical characteristic parameters of OPGW optical cables on different transmission lines, as well as the physical characteristic data matrix of OPGW backscattered light signals. The upper and lower bounds of the search space; Indicates the value Random numbers within the interval; Step 1322: Initialize physical parameters and search for role positions: Based on the physical characteristic parameters of OPGW optical cables for different transmission lines, standard OPGW backscattered light signal physical characteristic data matrix. Within the search space, randomly select a physical feature data of the OPGW backscattered light signal at the location of the transmission line. Matching physical characteristic parameters of OPGW optical cables for different transmission lines, standard OPGW backscattered light signal physical characteristic data Location; Step 1323: Calculate fitness: Based on the requirements of the problem, calculate the physical parameter search role for the physical characteristic parameters of OPGW optical cables on different transmission lines, and the standard OPGW backscattered light signal physical characteristic data matrix. The current position searched in the search space refers to the physical characteristic parameters of OPGW optical cables for different transmission lines, and the physical characteristic data of OPGW backscattered light signals. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line The fitness value; where the fitness value The calculation formula is as follows: ,in This represents the physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line. The Middle Each text feature point ,in This represents the physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line. The total number of feature points in Chinese text; Represents an indicator function that takes the value 0 or 1, and satisfies The value is 1 when it is used, where This represents the physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line. The Middle The coordinate difference of each text feature point This represents the physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line. Threshold for coordinate difference of feature points in Chinese text; Step 1324: Moving the Physical Parameter Search Role: Based on the problem-solving strategy, the physical parameter search role is moved and the standard OPGW backscattered optical signal physical characteristic data matrix is ​​updated for different transmission lines. The position within the search space, and the formula for calculating the updated position of the physical parameter search character are: ,in Indicates the range of values ​​as Random numbers in an interval , Indicates the maximum number of iterations; and All are values Random numbers within a range; It is a random number that follows a standard normal distribution; and Represents the hunger weighting factor. Indicates the value Random numbers within a range; This indicates the physical parameter search role in the physical characteristic parameters of OPGW optical cables on different transmission lines, as well as the standard OPGW backscattered light signal physical characteristic data matrix. Physical feature data of the OPGW backscattered light signal at the location of the transmission line were searched in the search space. The most matching physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. The globally optimal position; Indicates the first In this iteration, the physical parameter search plays a crucial role in the physical characteristic parameter standard of OPGW optical cable for different transmission lines and the physical characteristic data matrix of OPGW backscattered light signal. The location in the search space, Indicates the first In this iteration, the physical parameter search plays a crucial role in the physical characteristic parameter standard of OPGW optical cable for different transmission lines and the physical characteristic data matrix of OPGW backscattered light signal. The position in the search space; Step 1325, Update Fitness: Calculate the physical parameter search role for the physical characteristic parameters of OPGW optical cables on different transmission lines, and the standard OPGW backscattered light signal physical characteristic data matrix. Physical characteristic parameters of OPGW optical cables at new locations in the search space, standard OPGW backscattered light signal physical characteristic data Physical characteristic data of OPGW backscattered light signal at the location of the transmission line fitness value; Step 1326, Update the optimal solution: If the physical parameters calculated in step 1325 are used to search for the physical characteristic parameters of OPGW optical cables in different transmission lines, the standard OPGW backscattered light signal physical characteristic data matrix is ​​updated. Physical characteristic parameters of OPGW optical cables for different transmission lines in the search for new locations in the standard OPGW backscattered light signal physical characteristic data Physical characteristic data of OPGW backscattered light signal at the location of the transmission line The fitness value is better than the physical characteristic parameters of OPGW optical cables of different transmission lines at the current location, and the physical characteristic data of OPGW backscattered light signals. Physical characteristic data of OPGW backscattered light signal at the location of the transmission line The fitness value is then used to determine the physical characteristic parameters of OPGW optical cables for different transmission lines at the new location, as well as the standard OPGW backscattered light signal physical characteristic data. Updated to the optimal solution; Step 1327: When the maximum number of iterations is met, output the physical characteristic data of the OPGW backscattered light signal at the transmission line location. The most matching physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. Otherwise, return to step 1323 until the maximum number of iterations is met; Step 1328: The physical characteristic data of the backscattered light signal of the OPGW at the transmission line location, output in step 1327, are used to... The most matching physical characteristic parameters of OPGW optical cables for different transmission lines, and the standard OPGW backscattered light signal physical characteristic data. The corresponding physical characteristic parameters of the OPGW optical cable for the transmission line are used to generate a set of physical characteristic data of the OPGW optical cable at the transmission line location through data identification. ,in Indicates the first Physical characteristic data of OPGW optical cables at the location of each transmission line, wherein the physical characteristic data of OPGW optical cables at the location of each transmission line represents the temperature parameters, vibration parameters and strain parameters of OPGW optical cables at different locations in the transmission line.

[0009] Preferably, the disaster types occurring at different locations along the transmission line are identified based on the physical characteristic parameters of the OPGW optical cables at different locations, resulting in disaster type identification data for transmission line locations; the disaster types occurring along the transmission line are clustered to obtain summary disaster type data; the disaster occurrence status of the transmission line is judged to obtain disaster occurrence judgment data; when no disaster exists, the operation steps for directly ending the current disaster prevention monitoring operation of the transmission line are as follows: Based on the physical feature data set of OPGW optical cables at the transmission line location and the physical feature data matrix of OPGW optical cables for different transmission line disaster types, the disaster type identification processing for different locations of the transmission line is performed to obtain the disaster type identification data set for the transmission line location; Based on the disaster type identification data set of the transmission line location, clustering processing of disaster types occurring on the transmission line is performed to obtain a summary data set of transmission line disaster types; Based on the summary data set of transmission line disaster types, the disaster occurrence status of the transmission line is judged to obtain transmission line disaster occurrence judgment data. The transmission line disaster occurrence judgment data includes whether the disaster exists or not. When the transmission line disaster occurrence judgment data is that the disaster does not exist, the current transmission line disaster prevention monitoring operation is directly terminated.

[0010] Preferably, the steps for identifying the disaster type at different locations of the transmission line based on the physical feature data set of the OPGW optical cable at the transmission line location and the physical feature data matrix of the OPGW optical cable for different transmission line disaster types are as follows: Establish a physical characteristic data matrix of OPGW optical cables for standard transmission lines under different disaster types. ,in Indicates the first The data represents the physical characteristic data of standard OPGW optical cables for different types of power transmission line disasters, including power transmission line galloping, power transmission line icing, external force damage to power transmission lines, power transmission line fires, and power transmission line lightning strikes. The physical characteristic data of standard OPGW optical cables for different types of power transmission line disasters represents the physical characteristic parameters of standard OPGW optical cables set for different types of power transmission line disasters. The Aho-Corasick text search algorithm was used to collect the physical feature data set of the OPGW optical cable at the location of the transmission line. Physical characteristic data of OPGW optical cable at the location of the transmission line described in the document The physical characteristic data matrix of OPGW optical cables of transmission lines is ordered according to the location number of the transmission lines and the different disaster types of the transmission lines. Physical characteristic data of OPGW optical cables for standard transmission lines under different transmission line disaster types described in the document. Matching physical characteristic parameters of OPGW optical cables along transmission lines to search for physical characteristic data of OPGW optical cables at the location of the transmission lines. Matching physical characteristic data of standard transmission line OPGW optical cables for different transmission line disaster types The corresponding textual information on the disaster type of the transmission line is used to generate a dataset for identifying the location and type of disaster of the transmission line after data identification. ,in Indicates the first Disaster type identification data corresponding to the location of each transmission line, wherein the disaster type identification data represents the disaster identification information at different locations in the transmission line.

[0011] Preferably, the steps for performing clustering processing on the disaster types occurring along the transmission lines based on the disaster type identification dataset of the transmission line locations to obtain a summary dataset of transmission line disaster types are as follows: Clustering algorithms are used to identify the disaster type at the location of the transmission line based on the data set. Data on the identification of disaster types at the location of transmission lines described in the document The corresponding text information on transmission line disaster types is subjected to cluster analysis of disaster types of the same type. The text information of the same type of transmission line disasters from the cluster analysis is then used to generate a summary data set of transmission line disaster types after data identification. , ,in and These represent the events that occurred in the transmission line. species and first Summary data of transmission line disaster types corresponding to various transmission line disaster types.

[0012] Preferably, the disaster occurrence status of the transmission line is judged based on the summary data set of the transmission line disaster types to obtain transmission line disaster occurrence judgment data. The transmission line disaster occurrence judgment data includes whether a disaster exists or not. When the transmission line disaster occurrence judgment data indicates that no disaster exists, the operation steps for directly ending the current transmission line disaster prevention monitoring operation are as follows: The broadband-first search algorithm is used to summarize the disaster types of the transmission lines in the data set. Summary data of transmission line disaster types as described in the document to Perform keyword searches for transmission line disaster types, and generate transmission line disaster occurrence judgment data based on the search results. When the data set of disaster types of the transmission lines is summarized If the keyword "transmission line disaster type" is present, it indicates that a disaster event has occurred in the current transmission line, and the output of the transmission line disaster occurrence judgment data is "disaster exists". When the data set of disaster types of the transmission lines is summarized If no keywords related to the type of disaster for transmission lines are found, it indicates that no disaster event has occurred on the current transmission line. In this case, the disaster occurrence judgment data for the transmission line is output as "no disaster exists," and the current disaster prevention monitoring operation for the transmission line is terminated directly.

[0013] Preferably, when a disaster occurs, the coverage area of ​​the transmission line disaster is analyzed and processed to obtain data on the coverage area of ​​the transmission line disaster type; the operation steps for constructing transmission line disaster monitoring result data and executing transmission line disaster monitoring feedback operations are as follows: When the disaster occurrence judgment data of the transmission line indicates the presence of a disaster, a bidirectional iterative search algorithm is used to analyze the disaster type identification data set at the transmission line location. The search query retrieves a summary dataset of transmission line disaster types based on keywords related to transmission line disaster types. All transmission line location disaster type identification data that match the summarized data of the transmission line disaster types. The corresponding textual information of the transmission line location is used to generate a dataset of the coverage area of ​​transmission line disaster types after data identification. ,in and These represent the events that occurred in the transmission line. species and first Data on the coverage area of ​​each type of power transmission line disaster; The data set covering the location range of the disaster types of the transmission lines The transmission line disaster monitoring result data is constructed by using ten identifiers. The transmission line disaster monitoring result data includes the type and coverage location information of the transmission line disaster. The disaster monitoring results of the transmission lines are transmitted via the Internet of Things to the transmission line monitoring and control terminal of the target disaster prevention and monitoring transmission line to perform the disaster monitoring and feedback operation.

[0014] (III) Beneficial Effects This invention provides a distributed multi-parameter disaster prevention monitoring and positioning system for power transmission lines based on OPGW optical cables. It has the following beneficial effects: I. Real-time acquisition of OPGW backscattered optical signal data at transmission line locations using a distributed fiber optic sensor demodulator provides accurate numerical support for the precise identification of transmission line disasters. Based on the OPGW backscattered optical signal data at transmission line locations, and combined with the distributed fiber optic sensor demodulator, the physical characteristic parameters of the OPGW backscattered optical signals at different locations on the transmission line are extracted autonomously and efficiently, achieving point-to-point extraction of physical characteristic parameters of OPGW backscattered optical signals at multiple locations on the transmission line. Based on the physical characteristic data of OPGW backscattered optical signals at transmission line locations, combined with artificial intelligence algorithms and standard OPGW backscattered optical signal physical characteristic data of different transmission line OPGW optical cables based on big data storage, intelligent identification of physical characteristic parameters of OPGW optical cables at different locations on the transmission line is achieved. This enables distributed intelligent monitoring of transmission line status parameters based on OPGW optical cables, improving the accuracy and real-time performance of transmission line disaster prevention monitoring.

[0015] Second, based on the physical characteristic data of OPGW optical cables at the transmission line locations, combined with intelligent search algorithms and standard stored physical characteristic data of OPGW optical cables for different transmission line disaster types, scientific monitoring of disaster types occurring at different locations of transmission lines is carried out, realizing point-to-point monitoring of transmission line disaster types based on multiple parameters; based on the disaster type identification data at the transmission line locations and combined with data clustering processing, all disaster types occurring on transmission lines are scientifically summarized, enabling accurate search of disaster information occurring on transmission lines; based on the summarized disaster type data, a comprehensive judgment of the disaster status of transmission lines is made, realizing a global and scientific understanding of the disaster status of transmission lines and improving the quality of disaster prevention monitoring of transmission lines.

[0016] Third, based on the identification data of disaster types at the location of transmission lines and the summary data of disaster types at the location of transmission lines, and combined with intelligent search algorithms, the coverage area of ​​disasters occurring on transmission lines is accurately located. This enables digital positioning of the coverage area information of various disasters occurring on transmission lines, and allows for multi-level assessment of disaster types and locations. Based on the coverage area data of disaster types at the location of transmission lines and combined with data processing, the monitoring results data of disasters at the transmission lines are accurately constructed. At the same time, in conjunction with the transmission line supervision and control terminal, the monitoring and feedback operations of disasters at the transmission lines are executed in a timely manner, achieving efficient response and feedback of disaster monitoring results at the transmission lines, and improving the applicability and safety of disaster prevention monitoring of transmission lines. Attached Figure Description

[0017] Figure 1 A schematic diagram of the modules of the distributed multi-parameter disaster prevention monitoring and positioning system for power transmission lines based on OPGW optical cable provided by the present invention; Figure 2 The flowchart of the operation of the distributed multi-parameter disaster prevention monitoring and positioning system for power transmission lines based on OPGW optical cable provided by the present invention. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] An example of the distributed multi-parameter disaster prevention monitoring and location system for power transmission lines based on OPGW optical cables is as follows: Example: Please see Figures 1-2 A distributed multi-parameter disaster prevention monitoring and positioning system for power transmission lines based on OPGW optical cables, comprising the following components: The transmission line disaster prevention monitoring data processing module is used to collect OPGW backscattered light signal data at the location of the transmission line, extract and process the physical characteristic parameters of the OPGW backscattered light signal at different locations of the transmission line to obtain physical characteristic data of the OPGW backscattered light signal at the location of the transmission line; and identify and process the physical characteristic parameters of the OPGW optical cable at different locations of the transmission line to obtain physical characteristic data of the OPGW optical cable at the location of the transmission line. The transmission line disaster identification module identifies the types of disasters occurring at different locations along the transmission line based on the physical characteristic parameters of the OPGW optical cables at different locations, obtaining disaster type identification data for transmission line locations; it then performs clustering processing on the disaster types occurring along the transmission line to obtain summary data on transmission line disaster types; finally, it judges the disaster occurrence status of the transmission line to obtain disaster occurrence judgment data; and when no disaster exists, it directly terminates the current transmission line disaster prevention monitoring operation. The transmission line disaster location module analyzes and processes the coverage area of ​​transmission line disasters to obtain data on the coverage area of ​​different types of transmission line disasters; it also constructs transmission line disaster monitoring result data and executes transmission line disaster monitoring feedback operations. The transmission line disaster prevention monitoring data processing module includes a transmission line location OPGW backscattered light signal acquisition unit, a transmission line location OPGW backscattered light signal physical feature extraction unit, a standard OPGW backscattered light signal physical feature data storage unit for different transmission line OPGW optical cable physical feature parameters, and a transmission line location OPGW optical cable physical feature data identification unit. The system comprises the following components: a transmission line location OPGW backscattered light signal acquisition unit, which acquires OPGW backscattered light signal data at different locations along the transmission line using a distributed fiber optic sensor demodulator; a transmission line location OPGW backscattered light signal physical feature extraction unit, which extracts physical feature parameters of the OPGW backscattered light signal at different locations along the transmission line based on the OPGW backscattered light signal data and the distributed fiber optic sensor demodulator, to obtain physical feature data of the OPGW backscattered light signal at different locations along the transmission line; a standard OPGW backscattered light signal physical feature data storage unit, which stores the physical feature data of the OPGW backscattered light signal at different locations along the transmission line; and a transmission line location OPGW optical cable physical feature data identification unit, which identifies the physical feature parameters of the OPGW optical cable at different locations along the transmission line based on the physical feature data of the OPGW backscattered light signal at different locations along the transmission line and the standard OPGW backscattered light signal physical feature data, to obtain physical feature data of the OPGW optical cable at different locations along the transmission line. The transmission line disaster identification module includes a data storage unit for physical characteristics of standard transmission line OPGW optical cables for different transmission line disaster types, a transmission line location disaster type identification unit, a transmission line disaster type clustering unit, and a transmission line disaster judgment unit; The system includes: a data storage unit for physical characteristics of standard OPGW optical cables for different transmission line disaster types, used to store physical characteristic data of standard OPGW optical cables for different transmission line disaster types; a transmission line location disaster type identification unit, which identifies the type of disaster occurring at different locations of the transmission line based on the physical characteristic data of OPGW optical cables at different locations and the physical characteristic data of standard OPGW optical cables for different transmission line disaster types, to obtain transmission line location disaster type identification data; a transmission line disaster type clustering unit, which clusters the types of disasters occurring on the transmission line based on the transmission line location disaster type identification data, to obtain transmission line disaster type summary data; and a transmission line disaster judgment unit, which judges the disaster occurrence status of the transmission line based on the transmission line disaster type summary data, to obtain transmission line disaster occurrence judgment data. The transmission line disaster location module includes a transmission line disaster coverage range analysis unit, a transmission line disaster monitoring result collection unit, and a transmission line disaster monitoring feedback unit; The transmission line disaster coverage area analysis unit analyzes and processes the coverage area of ​​transmission line disasters based on the transmission line location disaster type identification data and the transmission line disaster type summary data to obtain transmission line disaster type coverage area data; the transmission line disaster monitoring result collection unit constructs transmission line disaster monitoring result data based on the transmission line disaster type coverage area data and combined with data processing; the transmission line disaster monitoring feedback unit performs transmission line disaster monitoring feedback operations based on the transmission line disaster monitoring result data and in cooperation with the transmission line monitoring and control terminal.

[0020] For further details, please refer to Figures 1-2 The following steps were taken to collect backscattered optical signal data of OPGW at different locations along the transmission line, extract and process the physical characteristic parameters of the OPGW backscattered optical signals at different locations along the transmission line to obtain physical characteristic data of the OPGW backscattered optical signals at the transmission line locations. The operation steps for identifying and processing the physical characteristic parameters of the OPGW optical cable at different locations along the transmission line to obtain physical characteristic data of the OPGW optical cable at the transmission line locations are as follows: Step 11: The distributed fiber optic sensor demodulator transmits laser pulse signals online to the OPGW optical cable in the target disaster prevention monitoring transmission line, and simultaneously receives the OPGW backscattered light signal data reflected from the OPGW optical cable at different locations on the transmission line, generating a set of OPGW backscattered light signal data for each location on the transmission line. ,in Indicates the number of data collected in the transmission line. The OPGW backscattered light signal data corresponding to the location of each transmission line; where the transmission line location represents the location information of the OPGW backscattered light signal acquisition at the specific distance from the distributed fiber optic sensor demodulator in the transmission line; the OPGW backscattered light signal data at the transmission line location represents the light intensity signal data at different locations of the transmission line; Step 12: Based on the OPGW backscattered light signal data set at the transmission line location, extract and process the physical feature parameters of the OPGW backscattered light signal at different locations of the transmission line to obtain the physical feature data set of the OPGW backscattered light signal at the transmission line location. Step 13: Based on the physical feature data set of OPGW backscattered light signal at the transmission line location and the physical feature data matrix of OPGW optical cable physical feature parameters for different transmission lines, perform physical feature parameter identification processing of OPGW optical cable at different locations of the transmission line to obtain the physical feature data set of OPGW optical cable at the transmission line location.

[0021] The steps for extracting physical feature parameters of OPGW backscattered light signals at different locations along a transmission line based on the OPGW backscattered light signal dataset are as follows: Step 121: Obtain the backscattered light signal data set of the OPGW at the transmission line location. ; Step 122: Use a distributed fiber optic sensor demodulator to collect the backscattered light signal data of the OPGW at the transmission line location. OPGW backscattered light signal data of transmission line location The physical feature parameters of the OPGW backscattered light signals at different locations along the transmission line were demodulated and extracted in an orderly manner according to the transmission line location number, and a set of physical feature data of the OPGW backscattered light signals at the transmission line location was constructed. ,in Indicates the first Physical characteristic data of OPGW backscattered light signals corresponding to the location of each transmission line. The physical characteristic data of OPGW backscattered light signals at different locations of the transmission line include the light intensity frequency, light intensity phase, light intensity amplitude and light intensity period of the OPGW backscattered light signals at different locations of the transmission line.

[0022] The steps for identifying the physical characteristic parameters of OPGW optical cables at different locations along transmission lines, based on the physical characteristic data set of OPGW backscattered optical signals at the transmission line location and the physical characteristic parameter matrix of OPGW optical cables for different transmission lines, are as follows: Step 131: Establish a physical characteristic parameter matrix for OPGW optical cables of different transmission lines and a physical characteristic data matrix for OPGW backscattered optical signals. ,in Indicates the first The physical characteristic parameters of OPGW optical cables for different transmission lines correspond to the standard OPGW backscattered light signal physical characteristic data for different transmission lines. The physical characteristic parameters of OPGW optical cables for different transmission lines include temperature parameters, vibration parameters, and strain parameters of the OPGW optical cables in the transmission line. The standard OPGW backscattered light signal physical characteristic data for different transmission lines represent the standard transmission line OPGW backscattered light signal physical characteristic data set for the physical characteristic parameters of OPGW optical cables for different transmission lines. Step 132: Collect the physical characteristic data of the backscattered light signal from the OPGW at the transmission line location. Physical characteristic data of OPGW backscattered light signal at the location of transmission lines According to the transmission line location number, and the physical characteristic parameter standard of OPGW optical cable for different transmission lines, the physical characteristic data matrix of OPGW backscattered light signal is formed. Standard physical characteristic parameters of OPGW optical cables for different transmission lines; physical characteristic data of OPGW backscattered optical signals. Perform physical characteristic parameter matching of OPGW backscattered light signal from power transmission lines to search for physical characteristic data of OPGW backscattered light signal at the location of the power transmission line. Matching physical characteristic parameters of OPGW optical cables for different transmission lines; OPGW backscattered light signal physical characteristic data. The corresponding physical characteristic parameters of OPGW optical cables for transmission lines were determined, and a set of physical characteristic data of OPGW optical cables at the locations of transmission lines was constructed. The process involves constructing a set of physical characteristic data for OPGW optical cables at the location of transmission lines. The specific operating steps are as follows: Step 1321: Initialize the search space: Determine the physical parameter search roles for different transmission lines, OPGW optical cable physical characteristic parameters, standard OPGW backscattered light signal physical characteristic data matrix. Search boundaries in the search space; physical parameter search roles in different transmission lines; OPGW optical cable physical characteristic parameters standard; OPGW backscattered light signal physical characteristic data matrix. The formula for the search boundary in the search space is as follows: ,in Indicates the role of physical parameter search exist Standard physical characteristic parameters of OPGW optical cables for different transmission lines; physical characteristic data matrix of OPGW backscattered optical signals. The location in the search space, and These represent the physical parameter search roles in different transmission lines, OPGW optical cable physical characteristic parameter standards, and OPGW backscattered light signal physical characteristic data matrices. The upper and lower bounds of the search space; Indicates the value Random numbers within the interval; Step 1322: Initialize physical parameters and search for role positions: OPGW optical cable physical characteristic parameters standard OPGW backscattered light signal physical characteristic data matrix in different transmission lines. Within the search space, randomly select a physical feature data of the OPGW backscattered light signal at the location of the transmission line. Matching physical characteristic parameters of OPGW optical cables for different transmission lines; OPGW backscattered light signal physical characteristic data. Location; Step 1323: Calculate fitness: Based on the requirements of the problem, calculate the physical parameter search role for different transmission lines, OPGW optical cable physical characteristic parameters, and standard OPGW backscattered light signal physical characteristic data matrix. The search space for the current location of different transmission lines, OPGW optical cable physical characteristic parameters, and OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of transmission line The fitness value; where the fitness value The calculation formula is as follows: ,in Physical characteristic parameters of OPGW optical cables for different transmission lines, and standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of transmission lines The Middle Each text feature point ,in Physical characteristic parameters of OPGW optical cables for different transmission lines, and standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of transmission lines The total number of feature points in Chinese text; Represents an indicator function that takes the value 0 or 1, and satisfies The value is 1 when it is used, where Physical characteristic parameters of OPGW optical cables for different transmission lines, and standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of transmission lines The Middle The coordinate difference of each text feature point Physical characteristic parameters of OPGW optical cables for different transmission lines, and standard OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of transmission lines Threshold for coordinate difference of feature points in Chinese text; Step 1324: Moving the Physical Parameter Search Role: Based on the problem-solving strategy, the physical parameter search role is moved and the physical characteristic data matrix of OPGW optical cable physical characteristic parameters and standard OPGW backscattered optical signal is updated in different transmission lines. The position within the search space, and the formula for calculating the updated position of the physical parameter search character are: ,in Indicates the range of values ​​as Random numbers in an interval , Indicates the maximum number of iterations; and All are values Random numbers within a range; It is a random number that follows a standard normal distribution; and Represents the hunger weighting factor. Indicates the value Random numbers within a range; This represents the physical parameter search role in different transmission lines, OPGW optical cable physical characteristic parameters, standard OPGW backscattered light signal physical characteristic data matrix. Physical feature data of OPGW backscattered light signal at the location of the transmission line were searched within the search space. The most suitable physical characteristic parameters of OPGW optical cables for different transmission lines, and the physical characteristic data of OPGW backscattered optical signals. The globally optimal position; Indicates the first In this iteration, the physical parameter search plays a role in the physical characteristic parameter standard of OPGW optical cable in different transmission lines and the physical characteristic data matrix of OPGW backscattered light signal. The location in the search space, Indicates the first In this iteration, the physical parameter search plays a role in the physical characteristic parameter standard of OPGW optical cable in different transmission lines and the physical characteristic data matrix of OPGW backscattered light signal. The position in the search space; Step 1325, Update Fitness: Calculate the physical parameter search role for physical characteristic parameters of OPGW optical cables in different transmission lines, and standard OPGW backscattered light signal physical characteristic data matrix. Physical characteristic parameters of OPGW optical cables at different locations in the search space; physical characteristic data of OPGW backscattered light signals. Physical characteristic data of OPGW backscattered light signal at the location of transmission line fitness value; Step 1326: Update the optimal solution: If the physical parameters calculated in step 1325 are different from the physical characteristic parameters of OPGW optical cables in different transmission lines, then the optimal solution is updated. (This is followed by a seemingly unrelated sentence about OPGW backscattered light signal physical characteristic data matrix.) The search for new locations in China involves different transmission lines, OPGW optical cable physical characteristic parameters, and OPGW backscattered light signal physical characteristic data. Physical characteristic data of OPGW backscattered light signal at the location of transmission line The fitness value is better than that of different transmission lines at the current location. OPGW optical cable physical characteristic parameters standard OPGW backscattered light signal physical characteristic data Physical characteristic data of OPGW backscattered light signal at the location of transmission line The fitness value is then used to determine the physical characteristic parameters of OPGW optical cables for different transmission lines at the new location, as well as the standard OPGW backscattered light signal physical characteristic data. Updated to the optimal solution; Step 1327: When the maximum number of iterations is met, output the physical characteristic data of the OPGW backscattered light signal at the transmission line location. The most suitable physical characteristic parameters of OPGW optical cables for different transmission lines, and the physical characteristic data of OPGW backscattered optical signals. Otherwise, return to step 1323 until the maximum number of iterations is met; Step 1328: Combine the physical characteristic data of the OPGW backscattered light signal output in step 1327 with the data of the transmission line location. The most suitable physical characteristic parameters of OPGW optical cables for different transmission lines, and the physical characteristic data of OPGW backscattered optical signals. The corresponding physical characteristic parameters of the OPGW optical cable for the transmission line are used to generate a set of physical characteristic data of the OPGW optical cable at the transmission line location through data identification. ,in Indicates the first The physical characteristic data of OPGW optical cables at each transmission line location represents the temperature, vibration, and strain parameters of the OPGW optical cables at different locations within the transmission line.

[0023] Real-time acquisition of OPGW backscattered optical signal data at transmission line locations is achieved using a distributed fiber optic sensor demodulator, providing accurate numerical support for the precise identification of transmission line disasters. Based on this data, and combined with the distributed fiber optic sensor demodulator, physical characteristic parameters of OPGW backscattered optical signals at different locations along the transmission line are extracted autonomously and efficiently, enabling point-to-point extraction of physical characteristic parameters from OPGW backscattered optical signals at multiple locations. Furthermore, based on the physical characteristic data of OPGW backscattered optical signals at different locations along the transmission line, combined with artificial intelligence algorithms and standard OPGW backscattered optical signal physical characteristic data from different transmission line OPGW optical cables stored in big data, intelligent identification of physical characteristic parameters of OPGW optical cables at different locations along the transmission line is performed. This enables distributed intelligent monitoring of transmission line status parameters based on OPGW optical cables, improving the accuracy and real-time performance of transmission line disaster prevention monitoring.

[0024] For further details, please refer to Figures 1-2Based on the physical characteristic parameters of OPGW optical cables at different locations along the transmission line, the types of disasters occurring at different locations along the transmission line are identified, resulting in disaster type identification data for transmission line locations. The disaster types occurring along the transmission line are then clustered to obtain summary disaster type data. The disaster occurrence status of the transmission line is then assessed to obtain disaster occurrence assessment data. When no disaster exists, the operation to directly terminate the current transmission line disaster prevention monitoring operation is as follows: Step 21: Based on the physical feature data set of OPGW optical cables at the transmission line location and the physical feature data matrix of OPGW optical cables for different transmission line disaster types, perform disaster type identification processing at different locations of the transmission line to obtain the disaster type identification data set at the transmission line location. Step 22: Based on the disaster type identification dataset of transmission line locations, perform clustering processing on the disaster types occurring on transmission lines to obtain a summary dataset of transmission line disaster types; Step 23: Based on the summary data set of transmission line disaster types, perform disaster occurrence status judgment processing on the transmission line to obtain transmission line disaster occurrence judgment data. The transmission line disaster occurrence judgment data includes whether there is a disaster or not. When the transmission line disaster occurrence judgment data is that there is no disaster, the current transmission line disaster prevention monitoring operation is directly terminated.

[0025] The steps for identifying the disaster type at different locations of transmission lines by combining the physical feature data set of OPGW optical cables at the transmission line location with the physical feature data matrix of OPGW optical cables for different transmission line disaster types are as follows: Step 211: Establish a physical characteristic data matrix of OPGW optical cables for standard transmission lines under different transmission line disaster types. ,in Indicates the first This document presents physical characteristic data of standard OPGW optical cables for different types of power transmission line disasters, including power transmission line galloping, power transmission line icing, external force damage to power transmission lines, power transmission line fires, and power transmission line lightning strikes. The physical characteristic data of standard OPGW optical cables for different types of power transmission line disasters represent the physical characteristic parameters of standard OPGW optical cables set for different types of power transmission line disasters. Step 212: Use the Aho-Corasick text search algorithm to collect the physical feature data of OPGW optical cables at the transmission line locations. Physical characteristics data of OPGW optical cable at the location of China's power transmission lines A physical characteristic data matrix of OPGW optical cables for transmission lines, ordered by transmission line location number and based on different transmission line disaster types. Physical characteristic data of OPGW optical cables for different types of power transmission line disasters in China Matching physical characteristic parameters of OPGW optical cables along transmission lines to search for physical characteristic data of OPGW optical cables at the transmission line locations. Matching physical characteristic data of OPGW optical cables for different transmission line disaster types The corresponding textual information on the disaster type of the transmission line is used to generate a dataset for identifying the location and type of disaster of the transmission line after data identification. ,in Indicates the first Disaster type identification data corresponding to each transmission line location represents disaster identification information at different locations within the transmission line.

[0026] The steps for clustering disaster types occurring along transmission lines based on the disaster type identification dataset at the transmission line location to obtain a summary dataset of transmission line disaster types are as follows: Step 221: Identify the dataset based on the location-based disaster type of the transmission line using a clustering algorithm. Data on the location and type of disasters along power transmission lines The corresponding text information on transmission line disaster types is subjected to cluster analysis of disaster types of the same type. The text information of the same type of transmission line disasters from the cluster analysis is then used to generate a summary data set of transmission line disaster types after data identification. , ,in and These represent the events that occurred in the transmission line. species and first Summary data of transmission line disaster types corresponding to various transmission line disaster types.

[0027] Based on the aggregated dataset of transmission line disaster types, the disaster occurrence status of transmission lines is determined, resulting in disaster occurrence judgment data. This data includes whether a disaster exists or not. When the disaster occurrence judgment data indicates that no disaster exists, the operation to directly terminate the current transmission line disaster prevention monitoring is as follows: Step 231: Use the broadband-first search algorithm to summarize the data set of transmission line disaster types. Summary data on disaster types of China's power transmission lines to Perform keyword searches for transmission line disaster types, and generate transmission line disaster occurrence judgment data based on the search results. When in the summary data set of transmission line disaster types When the keyword "transmission line disaster type" is present, it indicates that a disaster event has occurred in the current transmission line, and the output data for determining the occurrence of the transmission line disaster is "disaster exists". When in the summary data set of transmission line disaster types If no keywords for "transmission line disaster type" are found in the output, it indicates that no disaster event has occurred on the current transmission line. In this case, the output data for determining the occurrence of a transmission line disaster is "no disaster exists," and the current transmission line disaster prevention monitoring operation is terminated.

[0028] Based on the physical characteristic data of OPGW optical cables at the transmission line locations, combined with intelligent search algorithms and standard stored physical characteristic data of OPGW optical cables for different transmission line disaster types, scientific monitoring of disaster types occurring at different locations of transmission lines is achieved. This enables point-to-point monitoring of transmission line disaster types based on multiple parameters. Furthermore, based on the disaster type identification data at the transmission line locations and combined with data clustering processing, all disaster types occurring on transmission lines are scientifically summarized, enabling precise searching of disaster information. Finally, based on the summarized disaster type data, a comprehensive judgment of the disaster status of transmission lines is made, achieving a global and scientific assessment of the disaster status of transmission lines and improving the quality of disaster prevention monitoring for transmission lines.

[0029] For further details, please refer to Figures 1-2 When a disaster occurs, the coverage area of ​​the transmission line disaster is analyzed and processed to obtain data on the coverage area of ​​the transmission line disaster type. The operation steps for constructing transmission line disaster monitoring result data and executing transmission line disaster monitoring feedback operations are as follows: Step 31: When the data indicating the presence of a disaster on the transmission line is used, a bidirectional iterative search algorithm is employed to identify the disaster type at the transmission line location using the disaster type identification dataset. The database retrieves a summary of transmission line disaster types by searching for keywords related to transmission line disaster types. Location disaster type identification data of all transmission lines that match the summary data of transmission line disaster types. The corresponding textual information of the transmission line location is used to generate a dataset of the coverage area of ​​transmission line disaster types after data identification. ,in and These represent the events that occurred in the transmission line. species and first Data on the coverage area of ​​each type of power transmission line disaster; Step 32: Collect data on the location range covered by the disaster type of transmission line. The transmission line disaster monitoring results data are constructed by using ten identifiers. The transmission line disaster monitoring results data includes information on the type and coverage location of transmission line disasters. Step 33: Transmit the transmission line disaster monitoring results data to the transmission line monitoring and control terminal of the target disaster prevention and monitoring transmission line through the Internet of Things to perform the transmission line disaster monitoring feedback operation.

[0030] Based on the identification data of disaster types at the location of transmission lines and the summary data of disaster types at transmission lines, combined with intelligent search algorithms, the coverage area of ​​disasters occurring on transmission lines is accurately located. This enables digital positioning of the coverage area information of various disasters occurring on transmission lines, and allows for multi-level assessment of disaster types and locations. Based on the coverage area data of disaster types at transmission lines and combined with data processing, the monitoring results data of transmission line disasters are accurately constructed. At the same time, in conjunction with the transmission line monitoring and control terminal, the monitoring and feedback operations of transmission line disasters are executed in a timely manner, achieving efficient response and feedback of transmission line disaster monitoring results, and improving the applicability and safety of power line disaster prevention monitoring.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A distributed multi-parameter disaster prevention monitoring and positioning system for power transmission lines based on OPGW optical cables, characterized in that, The system includes the following: The transmission line disaster prevention monitoring data processing module is used to collect OPGW backscattered light signal data at the location of the transmission line, extract and process the physical characteristic parameters of the OPGW backscattered light signal at different locations of the transmission line to obtain physical characteristic data of the OPGW backscattered light signal at the location of the transmission line; and identify and process the physical characteristic parameters of the OPGW optical cable at different locations of the transmission line to obtain physical characteristic data of the OPGW optical cable at the location of the transmission line. The transmission line disaster identification module identifies the types of disasters occurring at different locations along the transmission line based on the physical characteristic parameters of the OPGW optical cables at different locations, obtaining disaster type identification data for transmission line locations; it then performs clustering processing on the disaster types occurring along the transmission line to obtain summary data on transmission line disaster types; finally, it judges the disaster occurrence status of the transmission line to obtain disaster occurrence judgment data; and when no disaster exists, it directly terminates the current transmission line disaster prevention monitoring operation. The transmission line disaster location module analyzes and processes the coverage area of ​​transmission line disasters to obtain data on the coverage area of ​​transmission line disaster types; it also constructs transmission line disaster monitoring result data and executes transmission line disaster monitoring feedback operations.

2. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 1, characterized in that: The steps for collecting backscattered optical signal data of OPGW at the location of the transmission line, extracting and processing the physical characteristic parameters of the OPGW backscattered optical signal at different locations of the transmission line to obtain the physical characteristic data of the OPGW backscattered optical signal at the transmission line location, and identifying and processing the physical characteristic parameters of the OPGW optical cable at different locations of the transmission line to obtain the physical characteristic data of the OPGW optical cable at the transmission line location are as follows: The system uses a distributed fiber optic sensor demodulator to transmit laser pulse signals online through the OPGW optical cable in the target disaster prevention monitoring transmission line, and simultaneously receives the OPGW backscattered light signal data reflected from the OPGW optical cable at different locations on the transmission line, generating a set of OPGW backscattered light signal data for each location on the transmission line. The include ;in Indicates the number of data collected in the transmission line. OPGW backscattered light signal data corresponding to each transmission line location; Based on the OPGW backscattered light signal data set at the transmission line location, physical feature parameters of the OPGW backscattered light signal at different locations of the transmission line are extracted and processed to obtain the physical feature data set of the OPGW backscattered light signal at the transmission line location. Based on the physical feature data set of OPGW backscattered light signal at the transmission line location and the physical feature data matrix of OPGW backscattered light signal at different transmission lines, the physical feature parameters of OPGW optical cables at different locations of the transmission line are identified and processed to obtain the physical feature data set of OPGW optical cables at the transmission line location.

3. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 2, characterized in that: The steps for extracting physical feature parameters of OPGW backscattered light signals at different locations of the transmission line based on the aforementioned OPGW backscattered light signal data set are as follows: Obtain the ; A distributed fiber optic sensor demodulator is used to perform the demodulation. The above The physical feature parameters of the OPGW backscattered light signals at different locations along the transmission line were demodulated and extracted in an orderly manner according to the transmission line location number, and a set of physical feature data of the OPGW backscattered light signals at the transmission line location was constructed. The include ;in Indicates the first Physical characteristic data of OPGW backscattered light signal corresponding to each transmission line location.

4. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 3, characterized in that: The steps for identifying the physical feature parameters of OPGW optical cables at different locations along the transmission line, based on the physical feature data set of OPGW backscattered optical signals at the transmission line location and the physical feature data matrix of OPGW optical cables for different transmission lines, are as follows: Establish a standard physical characteristic parameter matrix for OPGW optical cables of different transmission lines and a physical characteristic data matrix for OPGW backscattered optical signals. The include ;in Indicates the first Physical characteristic parameters of OPGW optical cables for different transmission lines correspond to standard OPGW backscattered light signal physical characteristic data; The The above According to the transmission line location number, they are ordered together with the above. The above Perform physical characteristic parameter matching of the backscattered light signal of the OPGW transmission line to search for the corresponding signal. The matching The corresponding physical characteristic parameters of OPGW optical cables for transmission lines were determined, and a set of physical characteristic data of OPGW optical cables at the locations of transmission lines was constructed. The process involves constructing a set of physical characteristic data for the OPGW optical cable at the location of the transmission line. The specific operating steps are as follows: Step 1321, Initialize the search space: Determine the physical parameters and search roles in the search space. The search boundary in the search space; Step 1322, Initialize physical parameters and search for the character's position: In the... Randomly select a match within the search space. The matching Location; Step 1323, Calculate fitness: Calculate the physical parameters and search for the role based on the requirements of the problem. The current position searched in the search space With the fitness value; Step 1324, Move the Physics Parameter Search Role: Based on the problem-solving strategy, move the Physics Parameter Search Role and update the... The position in the search space; Step 1325, Update Fitness: Calculate the physical parameters of the search role as described in the... The new location in the search space With the fitness value; Step 1326: Update the optimal solution: If the physical parameters calculated in step 1325 are in the optimal solution... The new location searched in the middle With the The fitness value is better than the current position. With the The fitness value, then the fitness value at the new position Updated to the optimal solution; Step 1327: When the maximum number of iterations is satisfied, output the result as described above. The most matching Otherwise, return to step 1323 until the maximum number of iterations is met; Step 1328: Combine the output of step 1327 with the... The most matching The corresponding physical characteristic parameters of the OPGW optical cable for the transmission line are used to generate a set of physical characteristic data of the OPGW optical cable at the transmission line location through data identification. The include ;in Indicates the first Physical characteristic data of OPGW optical cable corresponding to each transmission line location.

5. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 4, characterized in that: Based on the physical characteristic parameters of OPGW optical cables at different locations along the transmission line, the types of disasters occurring at different locations along the transmission line are identified, resulting in disaster type identification data for transmission line locations. Clustering of the disaster types occurring along the transmission line yields summary disaster type data. The disaster status of the transmission line is assessed, resulting in disaster status assessment data. When no disaster exists, the operation to directly terminate the current disaster prevention monitoring work on the transmission line is as follows: Based on the physical feature data set of OPGW optical cables at the transmission line location and the physical feature data matrix of OPGW optical cables for different transmission line disaster types, the disaster type identification processing for different locations of the transmission line is performed to obtain the disaster type identification data set for the transmission line location; Based on the disaster type identification data set of the transmission line location, clustering processing of disaster types occurring on the transmission line is performed to obtain a summary data set of transmission line disaster types; Based on the summary data set of transmission line disaster types, the disaster occurrence status of the transmission line is judged to obtain transmission line disaster occurrence judgment data. The transmission line disaster occurrence judgment data includes whether the disaster exists or not. When the transmission line disaster occurrence judgment data is that the disaster does not exist, the current transmission line disaster prevention monitoring operation is directly terminated.

6. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 5, characterized in that: The steps for performing disaster type identification processing at different locations of transmission lines based on the physical feature data set of OPGW optical cables at the transmission line locations and the physical feature data matrix of OPGW optical cables for different transmission line disaster types are as follows: Establish a physical characteristic data matrix of OPGW optical cables for standard transmission lines under different disaster types. The include ;in Indicates the first Physical characteristic data of OPGW optical cables for standard transmission lines corresponding to different types of transmission line disasters; The Aho-Corasick text search algorithm was used to search the text. The above According to the transmission line location number, they are ordered together with the above. The above Perform physical characteristic parameter matching of OPGW optical cables for power transmission lines to search for those that match the data. The matching The corresponding textual information on the disaster type of the transmission line is used to generate a dataset for identifying the location and type of disaster of the transmission line after data identification. The include ;in Indicates the first Data on the identification of disaster types at the locations of individual power transmission lines.

7. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 6, characterized in that: The steps for performing clustering processing on the disaster types occurring along the transmission lines based on the disaster type identification dataset of the transmission line locations to obtain a summary dataset of transmission line disaster types are as follows: Clustering algorithm based on the above The above The corresponding text information on transmission line disaster types is subjected to cluster analysis of disaster types of the same type. The text information of the same type of transmission line disasters from the cluster analysis is then used to generate a summary data set of transmission line disaster types after data identification. The include and , ,in and These represent the events that occurred in the transmission line. species and first Summary data of transmission line disaster types corresponding to various transmission line disaster types.

8. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 7, characterized in that: Based on the summarized data set of transmission line disaster types, the disaster occurrence status of the transmission lines is judged to obtain transmission line disaster occurrence judgment data. The transmission line disaster occurrence judgment data includes whether a disaster exists or not. When the transmission line disaster occurrence judgment data indicates that no disaster exists, the operation steps for directly ending the current transmission line disaster prevention monitoring operation are as follows: The broadband-first search algorithm is used to search the... The above to Perform keyword searches for transmission line disaster types, and generate transmission line disaster occurrence judgment data based on the search results. When in If the data contains keywords related to power transmission line disaster types, then the output data indicating the occurrence of the power transmission line disaster will be declared as a disaster. When in If no keywords for transmission line disaster types are found in the data, the output of the transmission line disaster occurrence judgment data will be "no disaster exists", and the current transmission line disaster prevention monitoring operation will be terminated directly.

9. The distributed multi-parameter disaster prevention monitoring and positioning system for transmission lines based on OPGW optical cable according to claim 8, characterized in that: When a disaster occurs, the coverage area of ​​the transmission line disaster is analyzed and processed to obtain data on the coverage area of ​​the transmission line disaster type. The operation steps for constructing transmission line disaster monitoring result data and executing transmission line disaster monitoring feedback operations are as follows: When the transmission line disaster occurrence judgment data indicates the presence of a disaster, a bidirectional iterative search algorithm is used in the... Searching for the keywords related to power transmission line disaster types in the middle yielded the following results. All of the data that match the summary data of the disaster types of the transmission lines The corresponding textual information of the transmission line location is used to generate a dataset of the coverage area of ​​transmission line disaster types after data identification. The include and ;in and These represent the events that occurred in the transmission line. species and first Data on the coverage area of ​​each type of power transmission line disaster; The The transmission line disaster monitoring result data is constructed by using ten identifiers. The transmission line disaster monitoring result data includes the type and coverage location information of the transmission line disaster. The disaster monitoring results of the transmission lines are transmitted via the Internet of Things to the transmission line monitoring and control terminal of the target disaster prevention and monitoring transmission line to perform the disaster monitoring and feedback operation.

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