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Power transmission line forest fire monitoring and early warning method and system based on multi-source data

A technology for monitoring and early warning and transmission lines, which is applied in the field of electric power engineering, can solve problems such as unquantified considerations, and achieve the effects of ensuring safety, convenient operation, and strong practicability

Pending Publication Date: 2020-04-03
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the present invention proposes a transmission line mountain fire monitoring and early warning method based on multi-source data and The system simulates the spread of mountain fires on transmission lines as a group of continuous and independent individuals, and calculates the alarm status of transmission towers based on the calculation model of the effective spread speed of mountain fires, providing support for wildfire prevention and emergency decision-making

Method used

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  • Power transmission line forest fire monitoring and early warning method and system based on multi-source data
  • Power transmission line forest fire monitoring and early warning method and system based on multi-source data
  • Power transmission line forest fire monitoring and early warning method and system based on multi-source data

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Embodiment 1

[0041] Such as figure 1 As shown, the embodiment of the multi-source data-based transmission line mountain fire monitoring and early warning method of the present invention includes the following steps:

[0042] S1: Obtain the latitude and longitude of the fire point pixel given by the mountain fire satellite monitoring and identification, and calculate the distance between the longitude and latitude of the fire point pixel and the nearest line tower. The calculation steps are:

[0043] Let the latitude and longitude coordinates of the fire point be (lon 0 , lat 0 ), warning tower a 1 The coordinates are (lon 1 ,lat 1 ), and the adjacent tower a on the same line as the warning tower 2 The coordinates are (lon 2 , lat 2 ), the distance from the fire point to the transmission line is

[0044]

[0045]

[0046] Among them, a, b, and c are the three sides of a triangle composed of the fire point, the warning tower, and the adjacent tower; R is the average radius of t...

specific Embodiment 2

[0067] 1) According to the latitude and longitude coordinates of the fire point issued by the mountain fire satellite monitoring and early warning system (119.01, 35.01), find out the alarm tower a1 closest to the fire point according to the distance, and its coordinates are (119.02, 35.02), which is located at the same The latitude and longitude coordinates of the adjacent tower a2 of the line are (119.00,67.00), and the calculated distance between the longitude and latitude of the fire point pixel and the nearest line tower a1 is 944.64 meters, and the mountain fire monitoring level is a second-level risk;

[0068] 2) Query the account of the online monitoring device in the corresponding area, and select the meteorological monitoring data of the nearest device. The daily maximum temperature is 22°C, the daily minimum humidity is 43%, the average wind speed is 3.5m / s, the distance from the tower to the fire point is uphill, and the slope of the terrain 12°, the angle between t...

Embodiment 3

[0072] An embodiment of a transmission line mountain fire monitoring and early warning system based on multi-source data of the present invention includes a memory, a processor, and a computer program stored in the memory and operable on the processor, and the method is implemented when the processor executes the computer program Example 1 steps.

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Abstract

The invention discloses a power transmission line forest fire monitoring and early warning method and system based on multi-source data. The power transmission line forest fire monitoring and early warning method comprises the following steps: (1) calculating the distance between forest fire point pixels and a tower; (2) extracting ground meteorological information; (3) extracting ground topographic features; (4) calculating the effective diffusion speed of the fire point; and (5) releasing mountain fire monitoring early warning. By combining various data sources such as power grid mountain fire satellite monitoring alarm information, ground online monitoring device meteorological monitoring information, topographic features, underlying surface features and the like, the power transmissionline forest fire monitoring and early warning method evaluates the effective diffusion speed of the mountain fire of the power transmission line corridor at different moments, carries out comprehensive alarm analysis of power grid mountain fire multi-source monitoring data, monitors and alarms mountain fire alarm position-mountain fire diffusion trend near the power transmission channel corridorintegrally, and guarantees the operation safety of the power transmission line. The power transmission line forest fire monitoring and early warning method is clear in thought, convenient to operate and high in calculation speed and can be widely applied to the field of power grid forest fire satellite monitoring and early warning.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular relates to a method and system for monitoring and early warning of mountain fires in transmission lines based on multi-source data. Background technique [0002] Most overhead transmission lines are located in the mountains with complex environment. When the UHV line crosses trees, residential areas and other areas, if there is a forest fire or artificial fire under the wire, the high temperature of the flame and thick smoke will easily cause the line to discharge, resulting in a line trip accident. . [0003] In order to realize large-scale real-time monitoring of mountain fires on transmission lines, a monitoring and early warning system for mountain fires on transmission lines has been built, which can receive polar orbiting and synchronous satellite data in real time for mountain fire identification, and has been used in power grid mountain fire identifica...

Claims

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Application Information

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IPC IPC(8): G06F16/29G06Q10/06G06Q50/06G06Q50/26
CPCG06F16/29G06Q10/0635G06Q50/06G06Q50/265
Inventor 李波章国勇徐勋建何立夫罗晶周秀冬
Owner STATE GRID HUNAN ELECTRIC POWER
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