基于ZigBee无线传感的滑坡地质灾害监测预警系统

Landslide Geological Hazard Monitoring and Early Warning System Based on ZigBee Wireless Sensor

为了降低山体滑坡地质灾害对铁路运行的安全危险,设计了利用ZigBee无线传感网的山体滑坡地质灾害监测与预警系统,该系统主要包括了激光传感器无线数据采集终端层、无线数据汇聚层、4G传输网络层和地面监控中心。系统硬件电路设计主要包括了主控CC2530电路连接设计、激光测距传感器电路连接设计和RS484通信总线电路连接设计;系统软件主要包括了协调器软件流程、终端节点软件流程和ModbusRTU数据包格式设计。系统测试表明,当网络节点部署在70m之内,系统丢包率可以控制在5%以内进行平稳运行。

In order to reduce the safety risk of landslide geological hazards to railway operation, a landslide geological hazard monitoring and early warning system based on ZigBee wireless sensor network is designed. The system mainly includes laser sensor wireless data acquisition terminal layer, wireless data aggregation layer, 4G transmission network layer and ground monitoring center. The system hardware circuit design mainly includes the main control CC2530 circuit connection design, the laser range sensor circuit connection design and the RS484 communication bus circuit connection design;The system software mainly includes coordinator software flow, terminal node software flow and Modbus RTU data packet format design. The system test shows that when the network node is deployed within 70m, the packet loss rate of the system can be controlled within 5% for stable operation.