Online control reconfiguration for a faulty manufacturing process

This paper proposes an online reconfiguration method for discrete event systems described by nondeterministic Input/Ouput automata. The method modifies the control law to circumvent the effects of sensor and internal system failures. It is based on a necessary and sufficient reconfigurability condit...

Full description

Saved in:
Bibliographic Details
Published in2011 3rd International Workshop on Dependable Control of Discrete Systems pp. 19 - 24
Main Authors Nke, Y., Lunze, J.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.06.2011
Subjects
Automata
Fault tolerance
Fault tolerant systems
Generators
Grippers
Radiation detectors
Visualization
Online AccessGet full text
ISBN9781424489695
1424489695
DOI10.1109/DCDS.2011.5970312

Cover

More Information
Summary:This paper proposes an online reconfiguration method for discrete event systems described by nondeterministic Input/Ouput automata. The method modifies the control law to circumvent the effects of sensor and internal system failures. It is based on a necessary and sufficient reconfigurability condition published recently. The main result is an online reconfiguration procedure that is based on backward and forward recovery strategies for discrete event systems subject to faults. After a failure has occurred, checkpoint states and control laws are iteratively computed until a state is found from which the process can be resumed. The applicability of the approach is demonstrated on a "pick & place system".
ISBN:9781424489695
1424489695
DOI:10.1109/DCDS.2011.5970312