基于LoRa物联网的滑坡泥石流 远程监测预警系统研究

Research on Remote Monitoring and Early Warning System of Landslide and Debris Flow Based on LoRa Internet of Things

针对滑坡泥石流监测与预防措施的现状,对LoRa物联网相关技术与监测预警方法进行研究,设计了一种基于LoRa物联网的滑坡泥石流监测预警系统。系统由一个LoRa网关和多种不同类型的LoRa传感器节点构成,传感器负责实时采集降雨、土壤湿度和振动数据。在基岩或者土壤发生移动时,触发振动传感器供电并发射无线信号给LoRa网关,当振动数据或土壤湿度数据达到阈值后通过移动互联网络发送警报通知信息。振动传感器和雨量传感器只在滑坡和暴雨出现时供电,解决了传感器供电难题。

According to the current situation of landslide and debris flow monitoring and prevention measures,the LoRa Internet of Things technologies and monitoring&early warning methods are studied in this paper,and a monitoring and early warning system model of landslide and debris flow is designed based on LoRa Internet of Things.The system consists of a LoRa gateway and many different types of LoRa sensor nodes.The sensor is responsible for collecting rainfall,soil moisture and vibration data in real time.In the case of bedrock or soil movement,the vibration sensor is triggered to supply power and send wireless signal to LoRa gateway.When the vibration data or soil humidity data reaches the threshold value,the alarm information is sent through the mobile Internet.Vibration sensor and rain sensor only supply power when landslide and rainstorm occur,which solves the problem of sensor long-term power supply.