| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a collapse prediction system using a batteryless RFID tag with sensor input function, capable of rapidly issuing evacuation instructions to residents in an area by broadcast radio waves by regularly observing an occurrence state of cliff failure, mudslide, landslide or the like with one-dimensional perception, and perceiving a minute fluctuation to predict a precursory phenomenon just before disaster occurrence. <P>SOLUTION: This system comprises a fluctuation detecting sensor for regularly observing the occurrence state of cliff fall, soil fall, landslide or the like without battery, a detection relay device for acquiring fluctuation data of a setting position by the fluctuation detecting sensor by radio communication, and a broadcast radio system for collecting and analyzing the fluctuation data and performing prediction of disaster occurrence and issuing of evacuation instructions just before the occurrence. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
