本文分析了原有的DGA故障诊断方法，包括三比值法、人工神经网络法、模糊理论、变压器诊断专家系统、灰色关联算法等。
The article analyses original methods of DGA fault diagnose, include three-ratio method, artificial neural network method, Fuzzy Theory, diagnosing expert system, grey relational algorithm, et.
本文提出了一种基于故障树分析和统计概率的模块化专家系统，作为此大型指挥控制系统电路的故障实时监测之用。
A modularization expert system based fault-tree analysis and statistical probability for real time fault detection of large anfractuous circuit is proposed in this paper.
分析了在构造机械加工故障诊断专家系统时领域知识的不确定性。
The uncertain problem of the domain knowledge in building machining operation expert system for fault diagnosis is analysed.
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