Taiwan is located in a subtropical zone with high temperatures and large rainfall. On average, between three and four typhoons hit Taiwan every year, providing much of the island's water supply, but also causing damage, flooding, and landslides. In order to reduce the occurrence of disasters and protect all citizens, the government commissioned an academic institution to conduct the long-term monitoring of debris flow by using technological products to detect changes in the environment. However, these expensive devices must be placed in mountainous areas or at the upper reaches of the river, often resulting in damage when a disaster occurs, and sometimes causes millions of NT dollars of loss. More