农田无线传感器网络移动终端数据收集方案  

Data collection scheme for mobile terminal in farmland WSNs

作　　者：陆明洲[1] 沈明霞[1] 孙玉文[1] 熊迎军[1] 刘龙申[1] 林相泽[1] 

机构地区：[1]南京农业大学工学院,南京210031

出　　处：《农业工程学报》2011年第8期242-246,共5页Transactions of the Chinese Society of Agricultural Engineering

基　　金：国家"863"高技术研究发展计划资助项目(2008AA10Z226);南京农业大学青年科技基金资助项目(KJ2011021;KJ2010033);江苏省农机局科研启动基金资助项目(gxz08007)

摘　　要：农田无线传感器网络部具有署面积大、汇聚节点位置不固定的特点,为了解决移动汇聚节点高效、低能耗地收集网络数据的问题,提出了一种基于层次型拓扑结构的移动终端数据收集方案—DCSMT_H。方案综合考虑节点位置及当前剩余能量选举簇头并形成层次型拓扑结构,根据移动终端当前位置灵活构建簇间数据汇聚路由。仿真实验结果表明,DCSMT_H方案的网络能耗低,该方案与LEACH相比能有效延长网络生存期约15%,能够较高效地应用于移动终端收集大规模农田生产信息。该研究为提高无线传感器网络在精准农业中的应用水平做出了有益探索。Farmland wireless sensor network is characterised by its large deployment area and the unfixed location of sink node. In order to work out a more efficient and less energy-consuming way for the mobile sink node to collect the data of the network, the paper proposed a data collection scheme for mobile terminal based on hierarchical topology—DCSMT_H. Taking the location of nodes and residual energy into account, a clustering topology was built by selecting the cluster heads in the scheme, and finally a inter-cluster data routing was constructed flexibly according to the current location of the mobile terminal. Simulation experiments showed that DCSMT_H possessed low energy-comsumption network and extend the lifetime of the network by about 15% compared with LEACH. So DCSMT_H being appliod to the mobile terminal can well fit for collecting the environmental information of large-scale farmlands. This research can provide references for improving the application of wireless sensor networks in precision agriculture.

关 键 词：无线传感器网络 计算机仿真 拓扑 移动终端 数据收集 

分 类 号：TL361[核科学技术—核技术及应用]