基于IEEE1232的故障树诊断模型研究

Research on Fault Tree Diagnosis Model Based on IEEE1232

摘要:

IEEE1232对广义测试环境下的诊断知识进行了标准化描述,从而保证了诊断知识和数据的可移植和互操作；故障树分析作为被广泛应用的故障诊断方法,却很少有标准像IEEE1232一样对其具体应用进行详细规范,因此分析建立基于该标准的故障树诊断模型,是将其运用到实际故障树分析中的重中之重；首先介绍了IEEE1232标准及其模型构成,然后分析了其中一些公用模型元素的具体含义和用法；对于标准中关于故障树的描述,深入研究了其构成要素及有效的使用方法,并建立了基于这些要素的故障树诊断模型；最后给出了由EXPRESS语言描述的可交换故障树模型文件例子。

Abstract:

IEEE1232 defines a set of formal specification for diagnostics knowledge to all test environment,supports the portability and interplay of diagnostic knowledge and data.Fault tree analysis as a fault diagnosis method is widely used,but there are few standards such as IEEE1232 describes the application in detail,so the establishment of the fault tree diagnosis model based on this standard is the most important thing in the actual fault tree analysis.Firstly,IEEE1232 standard and its model composition are introduced,then the specific meaning and usage of some common elements are analyzed. All the elements and available methods about fault tree analysis in the standard are researched,and the fault tree diagnosis model is established based on these. Finally,a sample of exchangeable fault tree model file described by the EXPRESS language is showed.