Power transmission line geological disaster analysis method based on remote sensing data fusion

Abstract

The invention provides a power transmission line geological disaster analysis method based on remote sensing data fusion. The power transmission line geological disaster analysis method comprises thespecific steps: carrying out the collection of flight data, and respectively obtaining laser radar data and hyperspectral image data; carrying out data preprocessing on the laser radar data and the hyperspectral image data; completing fusion of the laser radar data and the hyperspectral image data; performing precision evaluation on the hyperspectral image data; collecting water system data, landform data, geological data, land utilization data, rainfall data and basic geographic data; extracting various types of factors; and obtaining an information amount graph of each comprehensive factor of a research area, then re-classifying the information amount graph by utilizing a natural breakpoint method in statistics, dividing the information amount graph into a level height, a moderate degreeand a mild degree, and obtaining a risk level graph classified according to the standard, namely a final geological disaster risk evaluation graph. The power transmission line geological disaster analysis method fuses the advantages of the two kinds of remote sensing data to provide effective technical support for geological disaster hidden danger investigation in the power transmission line channel.

Description

technical field [0001] The invention relates to the field of geological disaster analysis, in particular to a method for analyzing geological disasters of transmission lines based on fusion of remote sensing data. Background technique [0002] In recent years, due to changes in the natural environment and the impact of human activities, geological disasters such as landslides and debris flows in transmission line channels have occurred frequently, especially in the unstable geomorphic units of the Three Gorges Reservoir area. There are different potential geological hazards. Therefore, there are relatively high risks of geological disasters such as landslides and debris flows in the tower foundations of some transmission lines in this area, especially the geological disasters of high slopes will directly endanger the body of the transmission tower. The Yichang Operation and Maintenance Branch of the State Grid Hubei Maintenance Company removed the hidden dangers of geologic...

AI Technical Summary

Problems solved by technology

At present, the basic process of monitoring and controlling geological disasters in transmission line channels is the traditional group monitoring and group prevention method. Through daily line inspections or local residents inform the hidden dangers of tower channels or foundation slopes, and then take corresponding control measures to monitor power transmission. Geological disasters such as line tower landslides basically adopt some passive means such as video, rainfall collectors, displacement or deformation sensors, and lack an efficient and reliable active monitoring technology

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