Ground subsidence early warning method based on air-space-ground cooperation

The invention discloses a ground subsidence early warning method based on air-space-ground cooperation, and belongs to the technical field of ground subsidence measurement, and the method comprises the steps: S1, ground measurement: arranging a plurality of supporting rods on the ground, vertically arranging the supporting rods, arranging height sensors at the upper ends of the supporting rods, and forming a monitoring region by a region formed by connecting a plurality of height sensors at the edge, determining a first settlement area and a settlement distance by monitoring the change of a measured value of a height sensor; wherein the first settlement area takes the changed height sensor as a circle center, and the radius of the first settlement area is in direct proportion to the settlement distance; s2, space-based measurement: monitoring the settlement area in real time through a satellite remote sensing technology, and analyzing ground settlement data acquired by a satellite to obtain a second settlemen