Laser point cloud technology has brought new changes to the operation and maintenance of power transmission lines. The following image shows the installation of the DX-WPS100-JG2 laser point cloud equipment from Shenzhen Dingxin Smart Technology. Its application value is reflected in multiple key aspects, and I will elaborate on two major points for you.
1. Break through the limitations of flat images and restore the real scene on site
Laser point cloud equipment can spatially and three-dimensionally process the image data of transmission line towers, conductors and ground wires, line channels, and their surrounding environments, thereby constructing a three-dimensional model that can be arbitrarily measured and analyzed, accurately reproducing every detail of the transmission lines and their surrounding environment.
Taking the transmission lines in mountainous areas as an example, it was difficult to fully grasp the complex terrain surrounding the lines and the spatial relationship between the lines in the past through manual inspection. However, the model constructed from laser point clouds can clearly present the mountain terrain, tree distribution, and the relative position of the transmission lines. This three-dimensional model breaks through the limitations of traditional two-dimensional drawings or planar images and is of great help for subsequent line operation and maintenance decisions.
II. Facilitate hidden danger investigation and enhance inspection efficiency and accuracy
Compared to traditional visual inspection or simple instrument testing, laser point cloud technology can detect more hidden defects that are difficult to detect manually, thus avoiding missed inspections. During the operation of transmission lines, defects such as changes in conductor sag, tilting or damage of insulators, and deformation of towers can affect the safe and stable operation of the lines. With the help of laser point cloud data, operation and maintenance personnel can analyze using professional software to measure conductor sag, compare it with standard values, and promptly detect any abnormalities in sag, achieving online monitoring of conductor sag in transmission lines.
In addition, external factors such as tree growth, building construction, and foreign object attachment around transmission lines pose potential external force damage hazards that threaten line safety. Laser point cloud technology can quickly acquire three-dimensional coordinate information of objects around the line corridor and measure the distance between the line and surrounding trees, buildings, and other objects. When tree growth approaches the conductor and reaches the safety distance threshold, the system can issue timely warnings to remind operation and maintenance personnel to take action, thus avoiding short-circuit faults caused by trees touching the conductor. For construction activities beneath transmission lines, laser point cloud monitoring is used to observe the spatial position relationship between construction equipment and the line, preventing construction machinery from accidentally touching the line and greatly improving the efficiency and control ability in identifying external hazards.
Over long-term application, laser point cloud technology can also provide data basis for the renovation and upgrading of old transmission lines, ensuring that the renovation work is carried out efficiently and scientifically, and assisting in the construction of smart grids.
