基于空三解算技术的树障测量技术研究

Research on tree obstacle measurement technology based on space three solution technology

摘要:

电线与树冠之间的准确而有效的测量可以有效地防止与植被有关的故障,并确保电力系统的安全稳定运行。针对电力走廊树木障碍的测量难度,提出了一种基于空三解算技术进行测量的方法。通过拍摄电力线走廊区域的正面照,并使用图像的重叠特征点,可以算出每张照片的方向元素。根据空中三角剖分的原理,采用像素匹配算法计??算测量区域的密集点云数据,可以对树障测量进行统计,然后计算出树障的值。实验结果表明,空三解算方法可以实现对传输线势垒值的测量,测量误差可以满足测量树木与输电线路之间距离的需要。

Abstract:

the accurate and effective measurement between the wire and the tree crown can effectively prevent the failure related to the vegetation and ensure the safe and stable operation of the power system. In view of the difficulty of tree obstacle measurement in the power corridor, a method based on the space three solution technology is proposed. By taking a front photo of the power line corridor area and using the overlapping feature points of the image, the direction elements of each photo can be calculated. According to the principle of air triangulation, pixel matching algorithm is used to calculate the dense point cloud data in the measurement area, which can be used to make statistics on the measurement of tree obstacles, and then calculate the value of tree obstacles. The experimental results show that the space three solution method can achieve the measurement of the transmission line barrier value, and the measurement error can meet the needs of measuring the distance between trees and transmission lines.