Deformation monitoring method realizing timely alarm for danger area

Abstract

The invention discloses a deformation monitoring method realizing timely alarm for a danger area, which relates to the field of deformation monitoring of dams, slopes, bridges, railways, highways and hillsides. The method includes the following steps: S1, installing equipment; S2, marking corner reflectors; S3, obtaining foundation SAR deformation information and laser scanner DEM information; S4, extracting the coordinates of the corner reflectors from the foundation SAR deformation information and DEM information; S5, unifying the coordinate systems of foundation SARs and 3D laser scanners; and S6, fusing a foundation SAR deformation displacement diagram and a 3D laser scanner DEM diagram. The invention aims to overcome the problem that it is difficult to predict the disaster in a danger area through the existing deformation monitoring method, and provides a deformation monitoring method realizing timely alarm for a danger area. Through the deformation monitoring method of the invention, the actual positions corresponding to largely deformed points in the foundation SAR displacement diagram can be acquired quickly and accurately, and the disaster in a danger area can be predicted in time.

Description

technical field [0001] The invention relates to the field of deformation monitoring of dams, slopes, bridges, railways, highways, hillsides, etc., and more specifically relates to a deformation monitoring method for timely alarming in dangerous areas. Background technique [0002] In recent years, deformation monitoring of dams, landslides, bridges, railways, etc. has become more and more important. At present, the more common deformation monitoring method is to use ground-based SAR to obtain the deformation of the monitoring target. The ground-based SAR technology synthesizes the azimuth aperture through the reciprocating movement of the antenna on the horizontal guide rail. By acquiring images of the target area at different times, and using DInSAR technology to obtain submillimeter-level deformation and displacement accuracy, it is mainly used for landslides, glaciers, dams, bridges , railways and other deformation monitoring, analyze the deformation trend and make timely...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the deficiency that it is difficult to make timely disaster forecasts in dangerous areas in the existing deformation monitoring methods, and to provide a deformation monitoring method for timely alarming in dangerous areas, which can quickly and accurately obtain relatively large deformation variables in SAR displacement maps. The actual location corresponding to the large point, timely make disaster forecasts in dangerous areas

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