Tolerating permanent changes of state transitions in asynchronous machines

Seong Woo Kwak, Jung Min Yang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

In this paper, we propose a feedback control scheme that automatically counteracts permanent changes of state transitions in the logic of asynchronous sequential machines. Our study is based on corrective control, a novel theory for compensating the stable-state behavior of asynchronous machines. When the machine has an analytic redundancy in its reachability, we can design a corrective controller so that the closed-loop system continues to show the normal behavior even though a portion of state transitions is changed permanently by faults. Included are the necessary and sufficient condition for the existence of controllers as well as design considerations. We also provide the VHDL experiment for validating the applicability of the proposed control scheme.

Original languageEnglish
Title of host publicationProceedings of the 2nd IASTED Asian Conference on Modelling, Identifiaction, and Control, AsiaMIC 2012
Pages203-208
Number of pages6
DOIs
StatePublished - 2012
EventIASTED Asian Conference on Modelling, Identification, and Control, AsiaMIC 2012 - Phuket, Thailand
Duration: 2 Apr 20124 Apr 2012

Publication series

NameProceedings of the 2nd IASTED Asian Conference on Modelling, Identification, and Control, AsiaMIC 2012

Conference

ConferenceIASTED Asian Conference on Modelling, Identification, and Control, AsiaMIC 2012
Country/TerritoryThailand
CityPhuket
Period2/04/124/04/12

Keywords

  • Asynchronous machines
  • Corrective control
  • Fault tolerance
  • Permanent faults

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