ABSTRACT
Remote-monitoring systems for disaster prevention have been developed to satisfy increasing demands of Japanese society. The monitoring systems are classified as follows: Traditional remotemonitoring system, Web-based landslide remote-monitoring system, and Broadband remote-monitoring system. There are over 240,000 landslide disaster areas in Japan, but only 40% have any sort of prevention facility installed. Remote terminals are special terminals necessary for each personal computer, administrative agency, contractor, and local resident. It requires special phone lines for connecting between the landslide site and remote terminals. Many sensors installed in landslide sites include surface and ground movement gauges, pore water pressure gauges, pipe strain gauges, and weather observing sensors. Their acquired data is sent from the landslide site to an administration office. Using the data, the administrator judges the situation of landslide movement and transmits the observed landslide data and warning level to the local residents through the internet.
