基于无线传感器网络的城轨列车智能监测系统

Research on Intelligent Monitoring System of Urban Rail Train Based on the Wireless Sensor Network

设计一个能够对城轨列车关键设备进行监测的无线智能平台。平台通过搭建的无线传感器网络对部署在城轨列车上的电力牵引系统、城轨列车通信信号设备等关键设备进行信息采集,并将采集的信息进行汇聚、处理,然后通过数字移动通信网络(GSM/GPRS/CDMA)传输到监测中心,完成故障告警、远程监护的智能化监测。以S-MAC协议为基础,提出一种低控制开销的MAC协议——LPS-MAC协议。协议的主要目标是保证突发活动事件的准确传输,减少通信时延,有效地节约能源,延长使用周期。

This paper designs a wireless intelligence platform which can monitor the key equipments on the urban rail train.The platform uses the wireless sensor network （WSN） to collect the information in the electric traction telemechanical system and communication device of the train,and the collected information is transmitted to the monitoring center through the digital mobile communication network （GSM/GPRS/CDMA）.Based on the S-MAC protocol,a low control overhead MAC protocol（LPS-MAC） is designed.The main target of this protocol is to ensure the accuracy of the transferred emergency,and with this protocol the power will be saved and the entire network＇s service time will be extended.