And the expert system has introduced the fault - tree analysis and other analysis methods , and classified the types of ups faults , in order to realize the management and fault diagnosis for ups effectively 該系統(tǒng)采用了分層次、故障樹推理診斷模型,并結(jié)合了其它的故障樹分析和診斷方法,能對(duì)ups常發(fā)生的各類故障進(jìn)行分類、分析,從而更有效地完成ups不間斷電源的管理和故障診斷。