Method and system for predicting transmission line fire spread based on grid flow

Abstract

The invention discloses a method and system for predicting fire spread of transmission lines based on grid flow. Firstly, fire point information is obtained by using fire point acquisition equipment; the GIS image of the disaster-affected area is divided into grid images, and the grid terrain of the disaster-affected area is obtained. Identify the surface object category of each grid, and then calculate the cross-grid fire spread intensity under different meteorological conditions, and construct the fire spread weighted grid map of the disaster area; search the fire spread weighted grid map from the fire spread Path, establish a fire spread model, calculate the coordinates of the affected tower, the spread area and the time when the fire spread to the tower; finally, make corresponding alarms for the different impact levels of the fire spread predicted by the grid flow method. The grid flow-based transmission line fire spread prediction method and system of the present invention has the advantages of being able to quickly calculate the time and fire intensity when the fire point spreads to the transmission line area, timely notify the fire situation, and have high accuracy of early warning.

Description

technical field [0001] The invention relates to a method and system for predicting fire spread of transmission lines, in particular to a method and system for predicting fire spread of transmission lines based on grid flow. Background technique [0002] With the continuous development of cities and industries in recent years, the demand for electricity has increased dramatically. With the continuous construction of power infrastructure, the scale of transmission lines continues to expand, and the voltage level of transmission lines is getting higher and higher. my country's power industry has entered the era of large power grids characterized by large units, high voltage, and high automation. The basic industry and pillar industry for the sustainable development of the national economy and society. However, most transmission lines are far away from cities and pass through mountainous areas and farmland. They are extremely vulnerable to fires such as wildfires and farmland st...

AI Technical Summary

Problems solved by technology

These methods do not take into account the geographical features and vegetation surrounding the fire point and the transmission line, and also ignore the potential impact of the spread of a long-distance fire on the transmission line, so they cannot give accurate forecasts and often generate false alarms.

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