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浙江大学学报(工学版)
J4  2009, Vol. 43 Issue (5): 849-854    DOI: 10.3785/j.issn.1008-973X.2009.05.012
自动化技术、计算机技术     
基于簇头冗余的无线传感器网络可靠性研究
冯冬芹1,3,李光辉1,2,3,全剑敏1,金建祥1,3
（1.浙江大学 工业控制技术国家重点实验室,浙江 杭州 310027； 2.浙江林学院 信息工程学院,浙江 杭州 311300；3.浙江中控技术股份有限公司,浙江 杭州 310053）
Reliability of wireless sensor networks based on redundancy of cluster-heads
FENG Dong-qin1,3, LI Guang-hui1,2,3,  QUAN Jian-min1, JIN Jian-xiang1,3
(1. National Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou 310027, China;
2. School of Information Engineering, Zhejiang Forestry University, Hangzhou 311300, China;
3. Zhejiang SUPCON Technology Co. Ltd, Hangzhou 310053, China)
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摘要：

为了提高工业无线传感器网络的可靠性和可用性,使其能够长期自治地正常工作,提出了基于簇头冗余的工业无线传感器网络分簇路由算法.当工作簇头能量不足时,将主动切换到冗余簇头工作状态. 冗余簇头通过冗余测试结果判断工作簇头是否发生故障并接管工作簇头的数据转发任务.当边际节点不能与本簇簇头通信时,将利用备份簇头进行数据转发.对于不能与任何簇头直接通信的孤立节点,采用基于概率模型的多跳路由机制进行数据转发.为了降低功耗,该算法将冗余簇头设置为轻度睡眠状态,当冗余测试周期到来时,关闭射频前端器件.利用自行研制的节点,组建了实验系统,完成了簇头冗余切换、边际节点通信和孤立节点路由恢复的实验.实验结果表明该分簇路由算法具有较高的可靠性.
Abstract:

In order to improve the reliability and availability of industrial wireless sensor network (WSN), and to make WSN autonomously work for a long lifetime, a cluster- based routing algorithm for industrial WSN based on the redundancy of cluster-heads was given. When the master cluster-head has not enough energy or has a failure, the redundant  cluster-head can take over the data transmission tasks. The marginal nodes use the backup cluster-head and a multi-cluster access scheme to tolerate the failure of cluster- heads. For the isolated nodes that cannot communicate with any cluster-head directly, a multi-hop routing technique based on the probability model was put forward to maintain  the normal communication. In addition, the presented algorithm sets the redundant cluster-head into the light-weighted sleeping state, and closes the front end radio frequency  components when the redundant testing cycle comes so as to reduce the energy consumption. With the presented sensor nodes, an experimental environment was setup and three  experiments were implemented, including cluster-head switching, marginal nodes and isolated nodes communication mechanisms. Experimental results showed that the proposed  cluster-based routing algorithm has higher reliability than that of the single cluster-head network model．
出版日期: 2009-11-18
:  TP212  
基金资助:

国家自然科学基金资助项目（90818010）；国家”863”高技术研究发展计划资助项目（2006AA040301, 2008AA04Z132）.
通讯作者: 李光辉，男，教授，博士后.     E-mail: lgh@zjfc.edu.cn
作者简介: 冯冬芹（1968-），男，江苏泰州人，教授，博士，主要从事工业以太网、工业数据通信技术及其标准化研究.
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引用本文:

冯冬芹, 李光辉, 全剑敏, 等. 基于簇头冗余的无线传感器网络可靠性研究[J]. J4, 2009, 43(5): 849-854.

FENG Dong-Qin, LI Guang-Hui, QUAN Jian-Min, et al. Reliability of wireless sensor networks based on redundancy of cluster-heads. J4, 2009, 43(5): 849-854.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2009.05.012    或    http://www.zjujournals.com/eng/CN/Y2009/V43/I5/849

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