通信学报 ›› 2016, Vol. 37 ›› Issue (9): 183-190.doi: 10.11959/j.issn.1000-436x.2016170

• 学术通信 • 上一篇    

基于可信度和邻居协作的传感器故障检测算法

蔺艳斐1,邵苏杰1,钟成2,郭少勇1,邱雪松1   

  1. 1 北京邮电大学网络与交换技术国家重点实验室,北京 100876
    2 河北省电力公司,河北 石家庄 050022
  • 出版日期:2016-09-25 发布日期:2016-09-28
  • 基金资助:
    国家电网科技项目基金资助项目

Sensor fault detection algorithm based on credibility and neighbor-cooperation

Yan-fei LIN1,Su-jie SHAO1,Cheng ZHONG2,Shao-yong GUO1,Xue-song QIU1   

  1. 1 State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China
    2 Power Grid of Hebei Province,Shijiazhuang 050022,China
  • Online:2016-09-25 Published:2016-09-28
  • Supported by:
    The Science and Technology Project Foundation of State Grid

摘要:

通过可疑节点与邻居节点的历史数据比较,判断节点是否故障是传感器故障检测的有效方法之一。该方法的关键点在于可疑节点的判断问题以及故障诊断消息发送时机的决策问题。为此,提出一种基于可信度和邻居协作的传感器故障检测算法。首先建立可信度模型进行节点可疑状态判定;随后基于邻居协作的思想向邻居节点发送故障诊断请求,通过等概率时间窗口决定该可疑节点诊断请求的发送时机;最后依据邻居节点的诊断回复进行故障情况的分类以及状态判断。通过仿真验证,该算法能够在降低故障诊断次数和数据拥塞率的前提下,提高故障检出率。

关键词: 无线传感器, 故障检测, 可信度模型, 邻居协作, 等概率时间窗口

Abstract:

To effectively detect whether a node was failure,one of the effective sensor fault detection methods was to compare historical data of suspicious node with its neighbors.The key points of this method were identification of suspicious nodes,as well as decision problem of sending timing for fault diagnosis messages.To this end,a sensor fault detection algorithm was presented based on credibility and neighbor-cooperation.Firstly,a credibility model to determine whether nodes are suspicious was established.Then suspicious nodes send fault diagnosis requests to neighbor nodes based on neighbor-cooperation.The sending timing was determined by equal probability time window.Finally,it could finish classification of fault condition and state judgment based on diagnosis responds of neighbor nodes.Simulation experiments show that this algorithm can achieve higher fault detection rate with less fault diagnosis times and low data congestion probability.

Key words: wireless sensor, fault detection, credibility model, neighbor-cooperation, equal probability time window

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