GNSS technology is used to monitor geological disasters and obtain deformation data in real time. In this paper, aiming at the problem of ephemeris anomaly in the real-time solution of GNSS, by calculating the single-point positioning solutions of ephemeris from different sources, taking the availability and accuracy index as the criteria, we can eliminate abnormal system ephemeris or abnormal satellites, effectively identify ephemeris problems, and screen out available ephemeris for monitoring and solving.
KEYWORDS: Data storage, Information operations, Geographic information systems, Software development, Inspection, Sensors, Java, Databases, Computer architecture, Satellite navigation systems
In view of the lack of operation and maintenance management platform for transmission line slopes, according to the major slope management of transmission lines in Guizhou Province, the operation and maintenance management platform for major slopes of Guizhou high voltage transmission lines is built, and the monitoring data of major slopes of high voltage transmission lines are collected and analyzed by using the monitoring system of major slopes of high voltage transmission lines. The platform mainly includes user management, multi-project comprehensive management, slope information management, operation and maintenance information management, real-time monitoring, alarm service, auxiliary decision-making module, to achieve slope data inquiry, display, management and early warning and other functions, to facilitate a comprehensive and accurate grasp of the slope state.
Airborne laser technology is widely used in transmission line operation and maintenance line construction acceptance and tree barrier analysis, and transmission line point cloud extraction is the basic work of these applications. A wire point cloud extraction algorithm is proposed in this paper. The first step is to segment the original point cloud data of a sortie by file; the second step is to roughly classify the single point cloud data; the third step is to refine the wire point cloud to obtain the target wire point cloud. Experiments verify that the accuracy of the algorithm is 90.2%, which verifies the accuracy and applicability of this algorithm.
In order to improve the problems existing in the traditional manual acceptance of transmission lines in mountainous areas, such as heavy workload, high investment, low security and high difficulty of work, this paper starts with the application of laser LiDAR technology in the capital construction acceptance of overhead transmission lines, and studies the formation of a set of integrated solutions suitable for mountainous landforms, from laser LiDAR data preprocessing, automatic classification of point cloud data to the application of transmission line infrastructure acceptance. To realize the high efficiency, accuracy, safety and low cost of the infrastructure acceptance of overhead transmission lines, so as to improve the stability of the power grid.
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