摘要
针对煤矿无人工作面安全监测问题,提出基于工业以太网的自动化传输平台和基于IEEE802.15.4/ZigBee无线传感器网络安全监测的网络体系结构,设计了分别以CC2431和AT91RM9200芯片为核心的传感器节点与接入网关(Sink).针对"多对一"通信过程中存在的Reach back问题,给出了能耗最小差异联合控制策略.仿真实验证明所采用的最小能耗差异方法能有效地增加约30%的网络生存期;网络在部署后能够有效地进行自组织和节点失败后的自愈.
According to the problem of safety monitor in unmanned roadway,the network architecture which combines integrated automation backbone transport platform based on industrial Ethernet and safety monitor based on WSNs is presented.The hardware of sensor and sink nodes based on CC2431 and AT91RM9200 respectively are designed and implemented in term of IEEE802.15.4/Zigbee protocols.In order to avoid network partition and early-dead caused by the problem of reachback in a many-to-one communication model,a joint control scheme of minimum energy variance is proposed.Simulation and tests show that this method can improve the network lifetime by 30% and the network can self-organize after deployment and self-heal after failures smoothly.
出处
《传感技术学报》
CAS
CSCD
北大核心
2007年第11期2517-2521,共5页
Chinese Journal of Sensors and Actuators
基金
国家自然科学基金重点项目资助(70533050)
江苏省科技攻关项目资助(BS2006002)
江苏省高新技术项目资助(BG2007012)
关键词
煤矿
安全监测
无线传感器网络
网络生存期
无人工作面
coal-mine
safety monitoring
wireless sensor network
network lifetime
unmanned roadway
