基于故障AND/OR树的逻辑故障诊断分析

THE ANALYSIS OF LOGICAL FAULTS BASED ON AND/OR FAULT TREE

当逻辑线路中存在故障时,在电路的输入端加一组"输入码",经过电路的"加工"后,在输出端可以观测到有关错误信息,经过匹配产生一组故障元件"可疑集",对于不同的故障元件可疑集合进行"交"运算,推断故障元件的位置。

When there is a logical error in the logic circuit,we put some codes to the import,we can observe some information about the logical error made by the electrocircuit.We can have a set of doubtful fault elements in the fanout by matching the information.Operating the intersection of the different sets of the fault elements,we can locate the position of the fault element.