Structural displacement monitoring method based on multiple measuring points and movable receiving end

Abstract

The application provides a structure displacement monitoring method based on multiple measuring points and a movable receiving end, comprising the following steps: constructing a reference coordinate system and a world coordinate system based on a displacement monitoring system; performing laser vertical calibration on each monitoring point and recording a measuring position angle; performing polling measurement according to the measuring position angle to obtain original measurement data of each monitoring point; converting pixel coordinates to three-dimensional coordinates based on the original measurement data to obtain complete three-dimensional coordinates of the monitoring points; converting the complete three-dimensional coordinates into three-dimensional coordinates in the reference coordinate system, and obtaining absolute displacement of the monitoring points relative to a reference point and relative displacement between two monitoring points by comparing the three-dimensional coordinates in the reference coordinate system at different times. The application can adapt to complex field environments and realize large-scale, low-cost and high-precision three-dimensional displacement monitoring of structures.

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