摘要
从灌溉需求和固定管道式喷灌系统的结构特点出发,设计了一个两层无线传感器网络(WSN)体系结构;通过分析传感器传感半径和喷头射程之间的关系,从理论上得到了完全感知覆盖田块所需要最少传感器数的表达式及部署方法;结合网络结构和节点分工,给出了数据的传输方式,并通过分层故障诊断的方法确保数据传输的可靠性。研究表明该网络的通信是可行的。
A system structure for two-layer wireless sensor networks （WSN） was designed to meet the requirements of precision irrigation and characteristics of fixed pipeline type sprinkler irrigation system. Through analyzing the relation between sensor＇s detection radius and sprinkler＇s range, two analysis expressions for minimum number of nodes were theoretically educed under circumstances of full coverage in a region. Combining network structure with nodes assignment, a data transmission mode was presented, and data transmission reliability was guaranteed by fault diagnosis with classifying management. The preliminary research indicates that communication via this network is feasible.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2009年第1期56-59,共4页
Transactions of the Chinese Society for Agricultural Machinery
基金
国家"863"高技术研究发展计划资助项目(2006AA10Z258)
关键词
精确灌溉
喷灌
无线传感器网络
网络结构
Precision irrigation, Sprinkling irrigation, Wireless sensor networks, Network structure
