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《Journal of Wuhan University(Natural Science Edition)》 2006-03
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Wireless Sensor Networks Based Environmental Monitor System

RAO Yunhua~1,DAI Li~1,ZHAO Cuncheng~2,CAO Yang~1(1.School of Electronic Information,Wuhan University,Wuhan 430072,Hubei,China;2.Yichang Testing Technique Research Institute,China Shipbuilding Industry Company,Yichang 443003,Hubei,China)  
With the requirement of environmental conservation and monitor,a wireless sensor networks based online monitor method is proposed for the temperature,humidity and yawp.The peer-to-peer network architecture construction,low power node design of system layer and topology tree based network initial and configuration process is adopted in this system.The geographical character based routing algorithm is also adopted.This system overcomes the problems of network layout complexity and limited,data precision,is highly real time and failure tolerance. Simulation with 1 000 nodes and 100 m communication range shows that the delay of monitor data is less than 600 ms,which satisfies the real-time requirement of environment monitor.
【Fund】: 国家863计划(2004AA639690);; 教育部博士点基金(20040486049);; 武汉市晨光计划(20055003059-27)资助项目
【CateGory Index】: TP274.4
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