Electric transmission line fire spreading predicating method and system based on grid flow

A transmission line and prediction method technology, applied in the direction of prediction, data processing application, climate sustainability, etc., can solve problems such as the fire point and the geographical landform and vegetation environment of the transmission line, etc., and achieve good extrapolation and reliable results letter effect

Active Publication Date: 2014-06-18
ANHUI UNIVERSITY +2
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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 ...

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  • Electric transmission line fire spreading predicating method and system based on grid flow
  • Electric transmission line fire spreading predicating method and system based on grid flow
  • Electric transmission line fire spreading predicating method and system based on grid flow

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Embodiment Construction

[0039] See attached Figure 1 ~ Figure 3 , a fire spread prediction method for transmission lines based on grid flow, which is characterized in that it includes the following steps:

[0040] Step 1: Use fire point acquisition equipment to obtain fire point information, which includes fire point location, fire point area, fire intensity, and time of occurrence, and combine historical data to eliminate noise and false fire points; (requires support from the power company Data, to obtain the position coordinates of the transmission line tower;)

[0041] Step 2: Obtain geographic GIS information regularly through the temporal GIS update system, divide the GIS image of the disaster-affected area into grid images according to the specified accuracy, and obtain the grid terrain of the disaster-affected area;

[0042] Step 3: Combining with the resource satellite database, use the feature recognition method to identify the feature category information of each grid for the disaster-af...

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Abstract

The invention discloses an electric transmission line fire spreading predicating method and system based on a grid flow. The method includes the steps that firstly, fire point collecting equipment is used for obtaining fire point information; a GIS image of an affected zone is divided into a grid image, so that a grid terrain of the affected zone is obtained, the ground feature category of each grid is identified, grid-crossing fire spreading intensity is calculated under different meteorological conditions, and a fire spreading weighing grid chart of the affected zone is constructed; a fire spreading route from sources to sinks is searched for in the fire spreading weighing grid chart of the affected zone to establish a fire behavior spreading model, and coordinates of an affected pole tower, the zone area of spreading and the time for fire spreading to the pole tower are calculated; finally, corresponding alarms are given to different influence grades of fire spreading predicated according to the grid flow method. The electric transmission line fire spreading predicating method and system based on the grid flow have the advantages that the time for fire point spreading to an electric transmission line zone and fire behavior intensity can be rapidly calculated, fire behaviors are informed in time, and early warning is high in accuracy.

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...

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Application Information

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IPC IPC(8): G06Q10/04
CPCY02A90/10
Inventor 赵海峰鲁毓苗范明豪李伟王贻平季坤徐超峰汤进
Owner ANHUI UNIVERSITY
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