A Landslide Geological Hazard Monitoring and Warning System Based on Zigbee Wireless Sensor

In order to reduce the safety hazards of landslide geological hazards to railway operation, a monitoring and early warning system for landslide geological hazards using Zigbee wireless sensor network was designed. The system mainly includes a laser sensor wireless data acquisition terminal layer, a wireless data aggregation layer, a 4G transmission network layer, and a ground monitoring center. The hardware circuit design of the system mainly includes the main control CC2530 circuit connection design, laser ranging sensor circuit connection design, and RS484 communication bus circuit connection design. The system software mainly includes the coordinator software process, terminal node software process, and Modbus RTU data packet format design. System testing shows that when network nodes are deployed within 70 m, the system's packet loss rate can be controlled within 5% for smooth operation.