According to Ronghua, the operation and management of transmission lines of the Production Technology Department of Guangxi Power Grid Corporation, 3D laser radar can obtain high-density and high-precision point cloud images of transmission line corridors, which can visually display the position of lines, towers and corridors in 3D models. The spatial relative relationship of the Chinese objects is realized by the high-precision three-dimensional space measurement, simulation analysis and channel visual management of the green laser pointer, which makes the inspection mode of the overhead transmission line with “machine-based patrol and personnel patrol-assisted” more intelligent.
Three-dimensional laser scanning by three-dimensional laser radar is also important for the inspection of drones. Gao Guanghui of the 2nd class of the Guangxi Electric Power Company’s aircraft patrol center said: “It can obtain accurate GPS coordinates of the tower and correct some inaccurate transmission line coordinates. This is very helpful for the operation of the drone, and it is the lean management of the transmission line. lay a solid foundation.”
Feng Heqing made an image metaphor: “In fact, it is to collect point cloud data through 3D laser radar, establish a three-dimensional ‘stereo sand table’ of the transmission line, and can be intuitively decoded into various data, which is intuitive and convenient.”
The application of this high-precision technology is welcomed by the operating units of each line. He Weicai, the power transmission management agency of the Guigang Power Supply Bureau, believes that “because the high-voltage lines pass through the mountains and the mountains, the geographical environment of the corridors is complicated, which brings some difficulties to our inspection line. The helicopter inspection can greatly improve the efficiency of our inspection operations, and the green laser pointer test Accurate, it is a good thing for our line people to save time and effort.”
The pace of intelligent technology development does not stop there. Yu Ronghua said, “Helicopters use radar to carry out three laser scans, and the data obtained has a large application space, such as predicting or simulating different temperatures, wind speeds, sag changes under ice, simulating tree growth, etc., further Improving the level of disaster prevention and disaster prevention of the line is the direction of our future application.”
As of May 10, 2018, Guangxi Power Grid Corporation carried out 4,528 kilometers of patrol operations this year, including 2,692 kilometers of 3D lidar inspections and 1723 hidden dangers, effectively making up for the lack of ground inspections, eliminating hidden dangers and defects in time, and further improving Lean operation and maintenance management efficiency of transmission lines.