Method for generating three-dimensional lightning positioned place flash point distribution map

Abstract

The invention discloses a method for generating a three-dimensional lightning positioned place flash point distribution map. The method comprises the following steps of: firstly, generating a geographical basic layer and a lightning place flash point basic layer of the novel three-dimensional lightning positioned place flash point distribution map by utilizing the existing two-dimensional lightning positioned place flash point distribution map and a sea-level elevation map and carrying out grid conversion; then unifying coordinate systems of the geographical basic layer and the lightning place flash point basic layer; and finally, implementing projection overlay analysis on the geographical basic layer and the lightning place flash point basic layer and transmitting sea-level elevation data of corresponding positions of the geographical basic layer to lightning place flash points to generate the three-dimensional lightning positioned place flash point distribution map. According to the method, the defects of the existing conventional two-dimensional lightning positioned place flash point distribution map are improved, so that the lightning place flash points obtain three-dimensional elevation attributes and a foundation is laid for further analyzing the lightning activity rule and improving a lightning parameter algorithm.

Description

technical field [0001] The invention belongs to the technical field of lightning protection engineering, and in particular relates to a method for obtaining a three-dimensional lightning location flash point distribution map. Background technique [0002] Lightning location technology is currently the mainstream method for researching the discharge of thunderclouds to the ground in the power system and determining the distribution of lightning flash points. The time, location, intensity and other parameters of ground lightning and lightning that occur in the area, and generate lightning location ground flash point distribution map, which is very helpful for the lightning protection design of power system transmission lines and on-site inspection work after lightning strike line tripping, but it is also There are the following deficiencies: the existing lightning location system is based on the two-dimensional geographic information system, which reflects the information of...

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Problems solved by technology

[0004]The purpose of the present invention is to aim at the traditional flash point distribution map of lightning location, which can only realize the display of lightning flash point on the two-dimensional map, and cannot reflect the distribution of lightning flash point The relationship between the three-dimensional altitude and the current situation where the guiding significance of lightning protection measures for transmission lines is limited in complex geographical environments such as mountainous areas. Data overlay processing, a method of generating a three-dimensional lightning location flash point distribution map is proposed to make up for the shortcomings of the traditional two-dimensional lightning location flash point distribution map

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