Design and practice of high precision landslide displacement monitoring system based on VRS

Using Beidou satellite positioning technology to monitor the surface displacement of landslide in real time is an effective technical means to construct the geological disaster monitoring and warning system based on human’s prevention and technical prevention. The current application status of Beidou displacement monitoring system was summarized, the problems existing in the large-scale application of "one-point-one-reference Station" mode analyzed and the design scheme of landslide high-precision displacement monitoring system based on VRS (Virtual Reference Station) technology was proposed. Besides, Based on the actual needs of landslide monitoring and early warning in loess region, a demonstration application was carried out in Jia County, Yulin City, Shaanxi Province, and the technical route of "virtual reference station + adaptive calculation" was summarized, which provided practical experience for the large-scale application of Beidou satellite positioning technology in geo-hazard monitoring and early warning.