Steel truss modeling method and system based on unmanned aerial vehicle and storage medium

The invention discloses a steel truss modeling method and system based on an unmanned aerial vehicle and a storage medium. The method comprises the steps that information of photos shot by the unmanned aerial vehicle and CAD data information are acquired; based on preset first software, obtaining an actual measurement three-dimensional model of the construction site according to the picture shot by the unmanned aerial vehicle; based on preset second software, obtaining a virtual three-dimensional model of the construction site according to the CAD data; based on a preset positioning point, obtaining a coordinate conversion coefficient between the actually measured three-dimensional model of the construction site and the virtual three-dimensional model of the construction site; extracting support coordinates in the actually measured three-dimensional model and support coordinates of the virtual three-dimensional model; on the basis of the coordinate conversion coefficient, comparing the support coordinates in