Satellite data picture-based method and device for processing fire point of power transmission line

Abstract

The invention discloses a satellite data picture-based method and device for processing a fire point of a power transmission line. The method comprises the following steps: obtaining a plurality of grid data packets through gridding the obtained satellite data picture; projecting each grid data packet and obtaining latitude and longitude coordinates of a pixel point in each grid data packet; extracting the fire point according to the brightness temperature value or the radiation quantity of the pixel point, and obtaining the latitude and longitude coordinates of the fire point; and obtaining the latitude and longitude coordinates of the fire point close to the power transmission line according to the latitude and longitude coordinates of the fire point and a geographic information system (GIS) of a power transmission line tower. The technical problem that fire prevention work of the power transmission line is delayed due to a low extraction speed of a conventionalsatellite data fire point extraction method is solved; effective fusion of satellite data receiving, data subpackaging and parallel processing is realized; the processing speed of meteorological polar orbit satellite data and the efficiency of coping with a forest fire disaster are improved; and an accurate information guidance is provided for forest fire prevention measures, so that the operation safety of a power grid is powerfully ensured.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, and in particular relates to a method and device for processing transmission line fire points based on satellite data pictures. Background technique [0002] Many provinces in my country are prone to wildfires in the continuous drought climate, especially during the high-incidence periods of industrial and agricultural fires such as spring plowing and Qingming period, it is very easy to break out large-scale wildfires, and the pollution or air discharge caused by the burning of wildfires near transmission lines will cause the line to trip. Affected by the long duration of wildfire burning, the environment of line tripping faults has always existed, and the automatic reclosing of lines is difficult to succeed, which may easily cause long-term power outages and cause severe impacts. Taking 2013 as an example, wildfires caused failures of multiple transmission lines in the power syste...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a transmission line fire point processing method and device based on satellite data pictures to solve the technical problem that the traditional satellite data fire point extraction speed is slow and delays the transmission line fire prevention work

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