| 多传感器网络中的分布式故障检测算法 |
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| 引用本文： | 徐向华,周彪,万健.多传感器网络中的分布式故障检测算法[J].传感技术学报,2010,23(4):595-601. |
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| 作者姓名： | 徐向华 周彪 万健 |
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| 作者单位： | 杭州电子科技大学计算机学院,网格与服务计算技术实验室,杭州,310037;杭州电子科技大学计算机学院,网格与服务计算技术实验室,杭州,310037;杭州电子科技大学计算机学院,网格与服务计算技术实验室,杭州,310037 |
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| 基金项目： | 浙江省重大科技专项资助(2008C11100,2007C11023) |
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| 摘 要： | 在传感器网络中,分布式故障检测算法(DFD算法)通过与所有邻居节点的传感器数据的比较判断,实现节点传感器的故障检测。但是,在故障节点聚集的网络区域,故障节点比例的上升将导致该区域的故障检测精度显著下降。针对多传感器网络,本文利用多传感器在相同区域的故障分布差异及传感器之间关联特性对DFD故障检测算法进行改进,提出适用于多传感器网络的MDFD算法,提高了故障聚集区域的检测精度。性能分析和仿真结果表明:在节点故障率高的网络中,与DFD和IDFD算法相比,MDFD提高了故障检测精度,算法适用于节点分布稀疏和传感器故障率较高的网络。
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| 关 键 词： | 多传感器网络 故障检测 MDFD算法 故障聚集 |
MDFD: Distributed Fault Detection for Multi-sensor Networks |
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| XU Xianghua,ZHOU Biao,WAN Jian.MDFD: Distributed Fault Detection for Multi-sensor Networks[J].Journal of Transduction Technology,2010,23(4):595-601. |
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| Authors: | XU Xianghua ZHOU Biao WAN Jian |
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| Affiliation: | Grid and Service Computing Technology Lab;Hangzhou Dianzi University;Hangzhou 310037;China |
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| Abstract: | In wireless sensor networks,the Distributed Fault Detection algorithm (DFD) compares the datum with other sensing data among its neighboring nodes to achieve fault detection. However,in areas with high density of faulty nodes,the increase of faulty nodes will lead to a significant decline in the accuracy of fault detection. In this paper,the sensor data correlation between multi sensors is exploited to improve performance of the DFD fault detection algorithm in the multi-sensor networks. The MDFD algorithm ... |
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| Keywords: | multi-sensor networks fault detection MDFD algorithm fault aggregation |
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