基于实景三维模型的电力选线技术

Power line slection technology based on real scene 3D modeling

利用无人机搭载五镜头相机进行倾斜摄影测量,能够快速获取研究区高精度实景三维模型。随着无人机倾斜摄影和实景三维(3D)技术的蓬勃发展,电力工程勘察设计正在从二维(2D)向三维迈进,针对传统二维勘察设计手段难以满足三维数字化正向设计的需要,本文利用陇东高原黄土丘陵区无人机倾斜摄影数据,建立研究区三维实景模型,真实地还原研究区全貌,在工程实例中进行三维选线设计,并对实景三维建模的精度进行分析,验证实景三维模型在输电线路工程三维选线技术研究的可行性。

Using unmanned aerial vehicle(UAV)to carry out oblique photogrammetry with a five-lens camera can quickly acquire the high-precision real scene three-dimensional(3D)model of the study area.With the vigorous development of UAV oblique photography and real scene 3D technology,the survey and design of electric power engineering is from two-dimensional(2D)to 3D.In view of the fact that traditional 2D survey and design methods can't meet the needs of 3D digital forward design,UAV oblique photography data were applied in loess hilly area of Longdong Plateau to establish 3D real scene model of the study area,truly restore the whole picture of the study area,conduct 3D line selection design in engineering examples,and the accuracy of 3D real scene modeling was analyzed to verify the feasibility of 3D line selection technology research in transmission line engineering.