GROUND MOVEMENT MONITORING DEVICE, GROUND MOVEMENT MONITORING SYSTEM, AND BOULDER FLOW MONITORING SYSTEM

摘要

PROBLEM TO BE SOLVED: To monitor a ground movement highly accurately in real time by combining three-dimensional positioning to the absolute movement of the ground with one-dimensional or two-dimensional positioning to the relative movement of the ground.;SOLUTION: One GPS positioning device 2, four laser positioning devices 3 (3a, 3b, 3c, 3d), a radio antenna 4 for communication with the center and a GPS standard observation device, a communication part 5, a solar panel 6, and a battery storing box 7 are mounted on a concrete pile to be piled into a monitoring point. The GPS positioning device 2 performs three-dimensional positioning of the monitoring point at every fixed time by an interference positioning method in cooperation with the GPS standard observation device installed on a separated position. The laser positioning devices 3 perform in real time one-dimensional or two-dimensional positioning of a laser light reflection plate installed on the periphery of the monitoring point.;COPYRIGHT: (C)2006,JPO&NCIPI