Ground subsidence monitoring and early warning system based on Beidou

The invention discloses a Beidou-based land subsidence monitoring and early warning system, which comprises a geological early warning unit and a plurality of observation station devices, and is characterized in that the observation station devices are distributed in a plurality of different disaster hidden danger point areas and are used for monitoring parameters of the disaster hidden danger point areas and feeding back the parameters to the geological early warning unit in a unified manner; the geological early warning unit pre-stores geographical coordinate information and disaster thresholds of each disaster hidden danger point area, and each piece of geographical coordinate information is associated with a plurality of disaster thresholds; according to the system, the disaster hidden danger points are determined according to the coordinates fed back by the Beidou terminal, then the corresponding disaster threshold values are called according to the disaster hidden danger points, and the real-time parame