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中文摘要：
无线传感器网络（WSNs）分布式节点故障诊断算法是一种可用于WSNs节点的故障诊断算法,通过整个网络内邻居节点之间的数据融合诊断出故障节点。但分布式算法的计算量十分巨大,浪费了大量的节点能源,而且分布式算法中使用自定义的全局阈值会降低诊断精度,分簇式的节点故障诊断算法应用LEACH-DFD算法,通过簇头节点完成故障检测,节省了大量的能量,而且采用优化的阈值,提高了诊断精度,并且受节点故障率的影响减小。
英文摘要：
Wireless sensor networks（WSNs） distributed algorithm is a node fault diagnosis algorithm that can be used for WSNs.The data fusion is used between the nodes and its neighbor nodes to diagnose fault nodes.However,the calculation of distributed algorithm is very complex,it wastes a lot of nodes＇energy,and also the distributed algorithm using a unique threshold across the networks will reduce the diagnostic precision.Clustering node fault diagnosis algorithm proposes a LEACH-DFD algorithm,which achieves the nodes＇fault diagnosis by the cluster head.This algorithm saves lots of energy,and it uses optimized segmentation threshold to improve the diagnosis precision,so the impact of node failure rate is reduced.
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