Multiple Fault Isolation in Redundant Systems
Shared by DAVID IVERSON, updated on Mar 28, 2016
Summary
- Author(s) :
- M. Shakeri, Krishna R. Pattipati, V. Raghavan, Ann Patterson-Hine, David L. Iverson
- Abstract
We consider the problem of sequencing tests to isolate multiple faults in redundant (fault-tolerant) systems with minimum expected testing cost (time). It can be shown that single faults and minimal faults, i.e., minimum number of failures with a failure signature different from the union of failure signatures of individual failures, together with their failure signatures, constitute the necessary information for fault diagnosis in redundant systems. In this paper, we develop an algorithm to find all the minimal faults and their failure signatures. Then, we extend the Sure diagnostic strategies [1] of our previous work to diagnose multiple faults in redundant systems. The proposed algorithms and strategies are illustrated using several examples.
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