反向故障诊断的步骤,讨论了这种故障诊断方法的诊断性能及其在计算上的复杂度.通过这种方法能够进行故障的寻找和定位,实例分析的结果说明了利用粗糙集进行知识发现及建立智能故障诊断系统的可行性和有效性.-Some work has been done for dealing with Fault Detection and Diagnosis (FDD) based on Rough Set, but in those cases Rough Set was just regarded as a tool for data cleaning or for assisting of other methods, or for detecting whether a system has fault but usually cannot tell where it happened.To solve this problem, a new approach for FDD based on Rough Set is proposed. The applicabilit