| 摘要 |
PROBLEM TO BE SOLVED: To efficiently manage the precision of structures using a small number of devices while a second structure is connected to a first structure.SOLUTION: In a precision monitoring system 1, a GPS reference station 2 is installed at a position where a GPS radio wave can be excellently received, and transmits GPS radio wave information to a precision computation apparatus 4. GPS observation stations 3 are installed at a top of a base structure BC (first structure) and tower-like structure TC (second structure) and transmits GPS radio wave information to the precision computation apparatus 4. GPS observation stations 3a and 3b are installed in both ends of the top of the base structure BS. GPS observation stations 3c and 3d are installed in both ends of the top of the tower-like structure TC. The precision computation apparatus 4 receives the GPS radio wave information from the GPS reference station 2 and the GPS observation stations 3, acquires reference coordinate axes and computes position coordinates of the GPS observation stations 3 on the reference coordinate axes. Positions of the base structure BC and the tower-like structure TC, rotation angles and tilt angles are then calculated from the computed position coordinates. |
