一种基于数据可靠性和区间证据推理的故障检测方法  

A Fault Detection Method Based on Data Reliability and Interval Evidence Reasoning

作　　者：周志杰 刘涛源 胡冠宇[2] 李思作 李改灵 贺维[4] ZHOU Zhi-Jie;LIU Tao-Yuan;HU Guan-Yu;LI Si-Zuo;LI Gai-Ling;HE Wei(Rocket Force University of Engineering,Xi'an 710025;College of Information Science and Technology,Hainan Normal University,Haikou 570100;Military Representative Room of the Rocket Army,Beijing 102488;Heilongjiang Agricultural Engineering Vocational College,Harbin 150088)

机构地区：[1]火箭军工程大学,西安710025 [2]海南师范大学信息科学技术学院,海口570100 [3]火箭军驻7111厂军事代表室,北京102488 [4]黑龙江农业工程职业学院,哈尔滨150088

出　　处：《自动化学报》2020年第12期2628-2637,共10页Acta Automatica Sinica

基　　金：国家自然科学基金(61773388,61751304,61374138,71601168)资助。

摘　　要：为解决故障检测方法在处理数据不确定性问题上的不足,本文提出一种基于数据可靠性和区间证据推理(Interval evidential reasoning,IER)的故障检测方法.该方法通过融合专家知识与考虑可靠性的监测数据,实现报警阈值区间的更新与优化,从而提高故障检测的准确性.首先基于信息一致性方法计算数据可靠度,然后基于区间证据推理理论,构建区间阈值的更新与优化模型,最后基于投影协方差矩阵自适应进化策略算法求解优化模型,得到故障检测误漏报率最小的最优报警阈值区间.对石油管道泄漏实例和航天继电器加速寿命测试实例的故障检测问题进行了研究,通过对比分析,验证了所提方法的有效性.In order to solve the problem of the fault detection method in dealing with data uncertainty,a fault detection method based on data reliability and interval evidence reasoning is proposed in this paper.In the proposed method,the interval threshold can be updated and optimized by integrating expert knowledge and reliability of monitoring data,and the accuracy of fault detection can be improved.Firstly,the data reliability based on the information consistency method is calculated.Then,the updating and optimization model of the interval threshold is established based on the interval evidence reasoning.Finally,the optimal alarm threshold interval with minimum false negatives and positives rate can be obtained by solving the optimization model based on projection covariance matrix adaptation evolution strategy algorithm.Two case studies of oil pipeline leak and aerospace relay accelerated life test are used to study the problem of fault detection.The effectiveness of the proposed method is verified by analyzing and comparing with several other methods.

关 键 词：故障检测 可靠性 区间阈值 区间证据推理 专家知识 

分 类 号：TP277[自动化与计算机技术—检测技术与自动化装置]