轻小型无人机飞行方案设计及其建模精度研究

轻小型无人机飞行高度和像控点布设间距是影响三维实景模型的关键因素,利用大疆精灵4RTK无人机,以工程测量中常用的几种飞行高度和像控点布设间距设计飞行方案,构建出三维实景模型,并对三维模型精度和无人机作业全过程效率进行对比分析,研究表明当飞行高度在60～100 m、像控点间距在500 m左右时,构建出的三维模型精度可靠且飞行方案更合理、经济,为轻小型无人机在工程测量中的应用提供了参考依据。

Research on the Design of the Flight Scheme and Modeling Accuracy of Light and Small UAV

The flight height of light and small UAV and the layout spacing of image control points are the key factors affecting the 3D real scene model. Dji Spirit 4RTK UAV was used to design a flight scheme based on several flight heights and spacing of image control points commonly used in engineering measurement, and a 3D real scene model was constructed, and the accuracy of 3D model and efficiency of the whole process of UAV operation were compared and analyzed. The research shows that when the flight height is between 60 and 100 m and the spacing of image control points is about 500 m, the accuracy of the three-dimensional model is reliable, and the flight scheme is more reasonable and economical, which provides a reference basis for the application of light and small UAV in engineering measurement.