Production of photovoltaic topographic maps in mountainous areas based on image-free control UAV PPK technology
In view of the characteristics of large height difference,vegetation coverage in some areas,and weak communication signals in the photovoltaic field area,this paper proposed a method of producing aerial photovoltaic topographic maps based on image-free control post processed kinematic(PPK)technology.This method firstly solved position and orientation system(POS)data and point cloud data of unmanned aerial vehicle(UAV)images obtained based on image-free control PPK Technology,and then high-precision digital elevation model(DEM)and digital orthophoto map(DOM)were generated by point cloud post-processing,aerial triangulation of images,and digital differential correction.Finally,DEM and DOM results were utilized to build three-dimensional(3D)models and produce topographic maps.Through two typical application examples,it is proven that the method can fully meet the accuracy requirements of photovoltaic topographic maps.
photovoltaic topographic mappost processed kinematic technologythree-dimensional modelsimage-free control
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