江苏大学学报（自然科学版）2011，Vol.32Issue(3)：320-324,5.DOI:10.3969/j.issn.1671-7775.2011.03.015
工业控制WSN汇聚节点可靠性分析
Reliability analysis of sink node in industrial control WSN
摘要
Abstract
In order to ensure the reliability of wireless sensor network (WSN) applied in industrial control domain, regarding the retransmission mechanism of common soft fault, reliability functional model was established based on qualitative analysis by using spare parts number of sink node and retransmission times as characteristic quantities. Effects of spare parts number and retransmission times on the reliability were quantitatively analyzed. Quantitative relationships among retransmission times, communication time and energy consumption were built by Markov chains and probability analysis. The WSN in power system was taken as an example to seek solution for the reliability model of sink node. The results show that when the real-time of network transmission and node energy consumption meet the requirements of the power system, the reliability of sink node can reach over 99.9％ with two spare parts and three retransmission time, even if the bit error rate is 0.2 × 10 -3.关键词
可靠性模型/无线传感器网络/汇聚节点/备件/重发Key words
reliability model/ wireless sensor networks/ sink node/ spare parts/ retransmission分类
信息技术与安全科学引用本文复制引用
张荣标,陈婷,沈卓,沈敏..工业控制WSN汇聚节点可靠性分析[J].江苏大学学报（自然科学版）,2011,32(3):320-324,5.基金项目
国家"863"计划项目(2006AA10Z258) （2006AA10Z258）
