A simple fault tolerant control for input/output asynchronous sequential machines

This paper presents a fault tolerant controller for asynchronous sequential machines subject to unauthorized state transitions caused by adversarial inputs. The input/output machines are considered where direct access to the machine’s state is unavailable. If the asynchronous machine satisfies some...

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Bibliographic Details
Published inAutomatica (Oxford) Vol. 52; pp. 76 - 82
Main Author Yang, Jung-Min
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.02.2015
Subjects
Asynchronous sequential machines
Corrective control
Fault tolerance
Input/output control
Transient faults
Fault tolerance
Asynchronous sequential machines
Corrective control
Transient faults
Input/output control
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Summary:This paper presents a fault tolerant controller for asynchronous sequential machines subject to unauthorized state transitions caused by adversarial inputs. The input/output machines are considered where direct access to the machine’s state is unavailable. If the asynchronous machine satisfies some condition on transition feature and reachability, we can design a simple output feedback controller that needs neither a state observer nor output bursts. Despite insufficient knowledge of the current state, the proposed controller automatically counteracts any transient fault so that the closed-loop system can maintain the normal input/output behavior.
ISSN:0005-1098
1873-2836
DOI:10.1016/j.automatica.2014.10.107