Evaluation method for electric transmission line orientated forest fire approaching risk

Abstract

The invention discloses an evaluation method for an electric transmission line orientated forest fire approaching risk. The method includes the following steps that A, forest fire happening information is obtained from a forest fire monitoring system based on satellites; B, electric transmission lines affected by ignition points are determined according to the happening position of the ignition points and longitude and latitude coordinates of the electric transmission lines; C, real-time meteorological data are obtained from an automatic meteorological monitoring station; D, according to the forest fire happening information, the real-time meteorological data and the electric transmission lines affected by the ignition points, risk indexes of the forest fire on all the electric transmission lines affected by the ignition points are sequentially calculated; E, a forest fire early warning risk grade of the forest fire event is determined according to the forest fire approaching risk indexes, and forest fire approaching risk early warning information is issued according to a set issuing standard; F, whether risk evaluation calculation is completed or not is judged. The evaluation method can quickly evaluate the risks of the forest fire on nearby lines after the forest fire happens, and the early warning information can be issued according to an evaluation result.

Description

technical field [0001] The invention relates to the field of wildfire risk assessment, in particular to a transmission line-oriented method for assessing the approaching risk of wildfire. Background technique [0002] With the development of information communication technology and data acquisition technology, the remote sensing technology of polar orbiting meteorological satellites has been able to monitor the occurrence of mountain fires in time. The polar-orbiting meteorological satellite obtains the mountain fire satellite monitoring information through the loaded medium-resolution spectral imager, and then completes the processing of the satellite monitoring information through a series of processes such as positioning, calibration, and correction to realize the monitoring of mountain fires. With the popularization and application of the GIS system of the State Grid Corporation of China, the GIS system of the State Grid Corporation of China has covered all transmission ...

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Problems solved by technology

[0003] At present, the meteorological department is also releasing information such as mountain fire warning information in various places, forest fire danger level distribution map, etc., but because these information are thick lines, involve a large range, the time accuracy is insufficient, and they are aimed at all industries in the society, and cannot meet the requirements of the power industry. Transmission line operation and maintenance personnel need fine-grained assessment and early warning of mountain fire risks. Transmission line operation and maintenance personnel in the power industry urgently need a method that can analyze mountain fires in a timely manner to assess and early warning of mountain fires after a mountain fire occurs. Instruct operation and maintenance personnel to take selective and focused protection measures for transmission lines when wildfires occur intensively, so as to minimize the damage and impact of wildfires on transmission lines

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