Substation civil engineering structure health monitoring system based on unmanned aerial vehicle

The invention relates to the technical field of transformer substation construction facility safety monitoring, in particular to a transformer substation civil engineering structure health monitoring system and method based on an unmanned aerial vehicle. According to the method, a point cloud model is established by using images of a building and an in-station terrace shot by an unmanned aerial vehicle, conversion from a two-dimensional image to a three-dimensional point cloud is realized, and the photos shot by the unmanned aerial vehicle are processed to generate remote sensing data, mainly topographic data of the in-station terrace and an orthoimage of the building. And finding out the changed area of the building or the field with the help of a detection algorithm, finding out the area caused by the deformation of the building and the ground surface settlement from the changed area, and checking to complete remote sensing identification work. The safety state of the civil engineering structure of the tran