Geological Disaster Rainfall Measurement System Based on Piezoelectric Sensing Technology

China is a country where geological disasters occur frequently. The advent of geological disasters such as landslides, collapses, and mudslides pose a huge threat to the lives and property of our people. Most geological disasters are caused by rainfall. Therefore, the monitoring of rainfall has become the main means of geological disaster monitoring and early warning. Based on the principle of piezoelectric sensing, this paper studies the measurement principle of rainfall. A real-time measurement system of geological disaster rainfall with adaptive frequency conversion function is designed. The experimental analysis of adaptive performance is carried out and compared with the tipping bucket rain gauge. The results show that the designed rainfall measurement system can accurately measure the rainfall in the area, which provides a good means for the monitoring of rainfall in geological disaster- prone areas.