模糊Petri网在液压同步提升系统故障诊断中的应用

研究了基于可信度的合成式模糊产生式规则的表示方法,在此基础上,将模糊Petri网与矩阵运算相结合,给出了模糊推理过程的形式化推理算法,将复杂的推理过程采用矩阵运算实现,充分利用了模糊Petri网的并行处理能力,利用此理论及方法可以大大减少诊断时间,提高了准确度．最后以液压同步提升系统故障诊断为例证明算法的可行性和准确性．

Application of fuzzy Petri nets in hydraulic synchronizing system fault diagnosis

This paper discusses knowledge representation of the compound production rules based on confidence. And then,combining fuzzy Petri net with matrix operation,an algorithm of formalized fuzzy reasoning process is proposed. It demonstrates that the fuzzy reasoning process is accomplished more simply, quickly and easily as the algorithm is adopted and the efficiency of the reasoning is also improved due to the parallel operation ability of Petri net. Finally, the method of fuzzy Petri nets is tested by the application of hydraulic synchronizing system fault diagnosis.