基于无线传感器网络的地铁隧道安全监测系统设计

On the Design of the Metro Tunnel Safety Monitoring System Based on Wireless Sensor Network

为解决“有线”传感器、隧道巡检机器人、人工仪器测量等现有地铁隧道监测技术存在的实时性低、成本高、监测量不全等问题,将无线传感器网络技术应用于地铁隧道安全监测。该系统将整个隧道划分为多个监测区域,以STM32单片机作为传感器节点控制器,实时采集隧道沉降、土压力、水位等数据,无线传输至监控中心,对超出安全值的情况进行报警提示,并短信通知系统维护人员。该系统具有监测量全、测量精度高、实时性高、布点灵活等优点。

To solve the problems of low real-time performance,high cost,and incomplete monitoring of monitoring technologies in metro tunnel such as wired sensors,tunnel inspection robots and manual instrument measurement,wireless sensor networks technology is applied to the safety monitoring in metro tunnel.The entire tunnel is divided into multiple monitoring areas,and single-chip microcomputer STM32 is used as the sensor node controller to collect real-time data such as tunnel settlement,earth pressure and water level,etc.,then it is transmitted to the monitoring center through wireless network,which will give alarms and the SMS notifications will be send to system maintainer when the safety value is exceeded.The system has the advantages of complete monitoring,high measurement accuracy,high real-time performance and flexible distribution.