摘要
针对现有的输电线路杆塔三维重建存在的耗时长、精度低等问题,提出了基于结构化拆解的杆塔重建方法。首先引入主成分分析算法,完成杆塔点云数据的重定向;其次将三维杆塔点云数据投影到二维平面上,通过图像分割和垂直分层完成杆塔各个部件的分割;然后使用散点轮廓算法和迭代终点拟合算法得到各部件的轮廓形状,利用支持向量机算法进行低数据量的杆塔部件分类识别;最后对各部件进行建模并完成杆塔的拼接。该方法构建的杆塔模型满足日常输电线路运维对杆塔模型的精度要求,而且提高了建模效率。
In allusion to the problems of time-consuming and low accuracy in existing three-dimensional(3D)reconstruction of transmission line towers,a structured disassembly-based tower reconstruction method is proposed.First,the principal component analysis(PCA)algorithm is introduced to reorient the tower point cloud data.Second,the three-dimensional tower point cloud data is projected onto a two-dimensional plane,and image segmentation and vertical layering are applied to segment the tower components.Then,the scatter contour algorithm and the iterative end point fitting algorithm are used to obtain the contour shapes of each component,and the support vector machine algorithm is employed for low-data-volume component classification and recognition.Finally,the components of each type are modeled,and the tower is assembled.The tower model constructed by this method meets the accuracy requirements for daily operation and maintenance of transmission lines,which significantlyimproves the modeling efficiency.
作者
魏俊豪
陈飞
朱亚东
彭晨辉
WEI Junhao;CHEN Fei;ZHU Yadong;PENG Chenhui(Nanjing NARI Ruizhong Data Co.,Ltd.,State Grid Electric Power Research Institute Co.,Ltd.,Nanjing 211000,China)
出处
《山东电力高等专科学校学报》
2025年第4期6-10,30,共6页
Journal of Shandong Electric Power College
关键词
输电线路杆塔
点云
杆塔建模
结构化拆解
transmission line towers
point cloud
tower modeling
structured disassembly
作者简介
魏俊豪(1998),男,硕士,工程师,主要研究方向为数字孪生、三维建模和输电线路运检。
