基于无线传感器网络的煤矿监测预警系统

现有的有线煤矿监测预警系统只能在主矿道中应用,而复杂的地下工作区域仍是监测预警的"盲区".为了能够有效地解决这一问题并且减少事故的发生,本文提出了一种基于无线传感器网络和嵌入式平台的监测预警系统.通过传感器,对环境中CO、CH4、温度、湿度、光强等值进行监测.该系统采用了IEEE802.11MAC协议CSMA/CA,以及DCF模式.同时采用了MESH无线传感器网络分析与管理平台,利用此平台收集每一个节点的信息,进行数据汇聚与进一步数据分析,根据所收集的各节点数据自动生成相应图表和做出超限报警提示.

A New Coal Mine Monitoring System Platform Based on Wireless Sensor Network

Current coal mine wire monitoring system can only be extended in the main lanes,and the underground work place is still a blind area,where is closely linked to the miners'lives.To resolve this problem and avoid more accidents,a WSN(Wireless Sensor Network,WSN)and embedded system platform is setup to monitor the work place environment and transfer the data of CO,CH4,temperature,humidity,light and etc.from the sensors to the console.The IEEE 802.11 MAC(Media Access Contml,MAC)protocol CSMA/CA(Cartier Sensor Multi Access with Collision Avoidance,CSMA/CA)in DCF(Distributed Coordination Function,DCF)mode is applied to decide how to use the wireless charmel and distribute limited communication resourees between wireless sensor nodes.On the Basis,the general framework of management platform MESH is presented.It can display the network topology tree,the node list,the node distribution and the real-time environmental data curves to the manager.