基于故障树的专家系统在轨道交通中的应用  

Application of Fault Diagnosis Expert System Based on Fault Tree in Rail Transit

作　　者：李帅[1] 杨建国[1] 周虎[1] 张华[1] 

机构地区：[1]东华大学机械学院,上海硕士研究生201620

出　　处：《城市轨道交通研究》2012年第7期126-128,共3页Urban Mass Transit

摘　　要：由故障讨建立的推理规则具有推理直观、符合人类思维习惯的优点。根据故障树分析和推理规则,提出一种基于故障树的轨道交通设备故障诊断专家系统。以轨道交通防排烟模式失效为例,阐述了故障树的建立方法及其定性定量分析方法,并根据故障树建立了"自顶而下"的正向推理规则,证明了算法和结构的有效性。Fault Tree （FT） is a special kind of inverted logic of cause and effect diagram. It uses the event symbols, logic gate symbols and link symbols to describe the system in a causal relationship between different events. Reasoning rules created by FT is intuitive in line with human habit of thinking. Based on qualitative and quantitative FT analysis along with reasoning rules, a fault diagnosis expert system is proposed, which could solve two difficult problems： 1, how to obtain and analyze system knowledge; 2, how to construct a high efficient reasoning mechanism. Finally, through a diagnosis instance of smoke exhausting system in metro transportation, the effectiveness of the algorithm and structure of the system is demonstrated.

关 键 词：故障树 知识规则 专家系统 故障诊断 

分 类 号：U231[交通运输工程—道路与铁道工程] U29-39