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本文提出了系统诊断三值模型的t1/t十故障顺序诊断的概念。比较现有的模型(如PMC模型等),该诊断能在不增加任何测试弧的情况下,使系统(至多)于tI+1步诊断后完全恢复。一般地, tJ/t斗故障顺序诊断每步可定位多个故障单元,其诊断步数降为PMC模型(:)中t—故障顺序诊断步数的二分之一。t2/t(1/2)故障顺序诊断适用于拓朴结构简单的系统,又能减少诊断步数,因而可在系统空间复杂性与诊断时间复杂性之间取得一种折衷。
In this paper, the concept of t1 / t ten fault sequence diagnosis of three-valued system diagnosis model is proposed. Comparing existing models (eg, PMC models, etc.), the diagnostics allow the system to recover completely (up to) after a tI + 1 step of diagnosis, without adding any test arcs. In general, tJ / tDocs can locate multiple fault cells per step, reducing the number of diagnostic steps to one-half the number of t-fault diagnostic steps in the PMC model (:). t2 / t (1/2) Fault order diagnostics for systems with a simple topology reduces the number of diagnostic steps, thus providing a compromise between system space complexity and diagnostic time complexity.