LONG PERIOD CONTINUOUS MEASURING DEVICE FOR STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a long period continuous measuring device for a structure, (1) which can easily be installed in any place without a measuring hut and a pass regulation by remarkably reducing an installation space, (2) enables considerable reduction of power capacity and storage capacity, which are required for terminal equipment, (3) enables unmanned data acquisition, whose measuring condition can be changed from a remote place and (4) which can avoid the influence of noise by the radio equipment of a travel vehicle. ;SOLUTION: Terminal equipment 3 measuring the dynamic change or static change of a structure 2 and sending the measured value and processing data through a telephone line, a power supply unit 4 supplying current to the terminal equipment and a central device 12 which is connected to the telephone line, inputs/analyzes data from the terminal equipment and instructs the measuring condition of data to the terminal equipment are installed. The terminal equipment has CPU 24 and a memory card 28 in place of a hard disk. A maximum value and a minimum value at every prescribed period, the frequency distribution and the measured values before and after time when a value exceeds a threshold are written into the memory card.;COPYRIGHT: (C)2001,JPO