摘要
设计了基于无线传感器网络的多参数无线火灾探测节点,实现对温度、湿度和烟雾的自动探测,通过多参数符合探测方法来降低火灾误报率,实现对火灾的可靠监测。针对火灾特征参数多跳传输提出一种基于CSMA/CA机制的最短路径路由算法,探测器能自动组网实现对火灾特征参数的无线实时监测。实验结果表明,探测器单跳通信距离最远可达100米,多跳通信每跳传输延时约50ms,对火灾烟雾响应达到I级灵敏度,湿度参数可有效消除水汽引起的火灾误报。
Muhiparameter fire detection nodes based on Wireless sensor network is designed,which can detect temperature, humidity and smoke concentration. The distorted fire rate is decreased with muhiparameter coincidence technique. And a shortest path routing algorithm is proposed according to muhi-hop transceiver based on CSMA/CA principle ; the sensor nodes can connect each other automatically, the sensor data can be transmitted within mini- mum hops. Using this type nodes, a real-time fire monitoring system is built up. As the experiment result： the max- imum distance of single hop transmission is 100m, the delay time of every hop within multi-hop communications is about 50ms, the sensitivity of fire smoke reaches the first class level, the parameter of humidity is used to eliminate the distorted effect of water vapor.
出处
《传感技术学报》
CAS
CSCD
北大核心
2010年第6期883-887,共5页
Chinese Journal of Sensors and Actuators
基金
"十一五"国家科技支撑计划
以布达拉宫为代表的高原古建筑火灾安全技术研究课题资助(2006BAK0607)
关键词
无线传感器网络
节点
火灾探测
多参数
多跳
路由算法
wireless sensor network
WSN node
fire detection
muhiparameter
multi-hop
routing algorithm
作者简介
刘士兴（1969-）,男,博士,副教授,主要研究方向为无线传感器网络、可编程器件与系统设计、火灾探测及弱信号处理,Liusx@ustc.edu.
