Patent ID: 6530284
Filing Date: 2003-03-11
Classification: G01F,G08B

Abstract:
A ground monitoring system comprising:a ground displacement sensing unit that is to be arranged at a point of ground to be monitored, said ground displacement sensing unit comprising: a sensing section including means for, when an external force due to ground displacement is applied, sensing an acceleration to acquire at least one characteristic measurement selected from the group consisting of: a direction, a magnitude, and an impulse force of the ground displacement; a computing section for executing calculations based on a result obtained by said sensing station; and a transmitting section for transmitting data obtained in said computing section to outside said ground displacement sensing unit; data processing means, provided in a station that receives the data transmitted from the ground displacement sensing unit, for processing the received data in real time and comparing the received data with reference data; and determining means, provided in said station, for determining a ground state of the ground point to be monitored on the basis of a comparison result obtained in said data processing means, wherein said data processing means includes means for averaging ground movements at the point to be monitored and means for determining whether or not an averaged result exceeds a reference value.