Implementation of Composite LPWAN on the Slope Disaster Prevention Monitoring System

Following the integration of the Internet of Things (IoT) in daily life and the vigorous development of low-power wide-area networks, IoT applications have gradually matured in various fields. Safety concerns cannot be overlooked in the construction of smart cities (direct buildings). This study focused on the aspects of disaster prevention (indirect care) and established a disaster prevention and monitoring system to ensure the safety of pedestrians. Disaster prevention in slope areas is a crucial topic in Taiwan because of numerous slopes in mountainous regions. Adequate monitoring equipment was installed on the basis of principles in protection structure construction to display quantitative data of rockfall disasters. A disaster prevention and monitoring system for rockfall was established to estimate the scale and severity of disasters. Furthermore, maintenance indicators for the monitoring system and protection structure construction were established, and management thresholds for disaster severity were formulated according to the onsite disaster situation. In this study, one alarm is issued on the experimental day and it is detected by node C with a value of 26.5° (
$\vert 26.5$
°-
$22.18^{\circ } \vert > 1^{\circ }$
), judging that the warning value is reached. And the measured value is within the measuring range, an alarm message is issued via mail to management personnel and government and import the alarm value on the monitoring page for the public to check.