Dam body three-dimensional deformation monitoring-oriented combined observation method with two ground-based radars

Abstract

The invention discloses a dam body three-dimensional deformation monitoring-oriented combined observation method with two ground-based radars. The method comprises the following steps of S1, generating a three-dimensional model; S2, constructing a ground-based radar system; s3, obtaining radar data; s4, fusing the radar data and the three-dimensional model to obtain a fused model; and S5, monitoring the measured target based on the fused model. A three-dimensional model of a key target in a monitoring area is constructed by using a point cloud data set of the monitoring area acquired by a ground three-dimensional laser scanner and an unmanned aerial vehicle oblique photogrammetry technology. Different from an existing calculation result in abstract expression forms of numbers, characters, images and the like, after the three-dimensional model is constructed and used, a result calculated according to data acquired by the ground-based radar can be displayed in front of a user in a more intuitive manner, the professional threshold of interpreting the calculation result is reduced, so that the method can be accepted and applied by vast demanders more easily, and the practicability is higher.

Description

technical field [0001] The invention relates to the field of surveying and mapping, in particular to a joint observation method of two ground-based radars for three-dimensional deformation monitoring of a dam body. Background technique [0002] my country's geological structure is complex and the topography fluctuates greatly, so geological disasters such as landslides, collapses, and mud-rock flows are extremely prone to occur. In addition, human production and living activities can easily induce landslide disasters. The instability or sliding of a large number of rock and soil slopes is not uncommon, which has brought serious harm and loss to engineering construction and people's lives and property. Therefore, by monitoring the target displacement data with advanced technology, the three-dimensional displacement information of the target can be obtained by accurate calculation, so as to reflect the real displacement of the target, and alarm the deformation information exce...

AI Technical Summary

Problems solved by technology

[0017] In view of the above-mentioned deficiencies in the prior art, the joint observation method of two ground-based radars for dam body three-dimensional deformation monitoring provided by the present invention solves the problem that a single ground-based radar cannot accurately calculate the three-dimensional displacement information of the target, which is difficult to be intuitive and practical. The problem of displaying the displacement situation of the monitoring target

Images