【摘要】 将Poage提出的三值特性的逻辑式变形一下,得到包含故障的二值逻辑式。用图形来表示成全通路图。它简化后成为逻辑通路图。用前一概念可以检测多故障;用后一概念可以诊断单故障。逻辑通路图可以用故障逻辑式来表示。本文说明全通路图及其简化;简述无扇出、有扇出、有冗余等情况下单故障的诊断及多故障的检测。在无扇出中,对一般情况作了深入的探讨,并给出了检测多故障的一些重要定理等。在扇出及冗余部份仅概述其特点、方法的运用及冗余条件下的定理。更多还原

【Abstract】 Two-valued logic equations are obtained by modifying the logic equations presented by Poage, which are described by means of the three-valued feature of a line. The logical equations can be represented by graphs which are called Whole Path Graphs (WPG). The simplified WPG are Logic Path Graphs (LPG). By using the concept of LPG single fault may be diagnosed, while by using the concept of WPG multiple fault may be detected. LPG may be represented by Fault Logic Equations (FL)). In this paper WPG and their simplified forms are illustrated, single fault diagnosis and multiple fault detection in cases of network with or without fanout and with redundancy are briefly stated. In the section of fanout free, general conditions are discussed and some theorems of multiple fault detection are given. In the sections of network with fanout and redundancy their characteristics and some theorems of redundancy are described.更多还原