Fault-tolerant robust supervisor for discrete event systems with model uncertainty and its application to a workcell

Author

Park, Seong-Jin ; Lim, Jong-Tae

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea

Volume

15

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

386

Lastpage

391

Abstract

This paper addresses the problem of fault-tolerant robust supervisory control of discrete event systems (DES) with model uncertainty. Necessary and sufficient conditions for the existence of a fault-tolerant robust supervisor are derived. If the conditions are satisfied, then tolerable fault event sequences embedded in the system can be achieved. The results obtained are applied to design, modeling, and control of a workcell in a production line consisting of two gas metal arc welding (GMAW) robots, a sensor, and a conveyor

Keywords

discrete event systems; robust control; stability criteria; uncertain systems; DES; GMAW robots; conveyor; discrete event systems; fault-tolerant robust supervisory control; gas metal arc welding robots; model uncertainty; necessary and sufficient conditions; production line; tolerable fault event sequences; Discrete event systems; Fault tolerance; Fault tolerant systems; Production; Robust control; Robustness; Sufficient conditions; Supervisory control; Uncertainty; Welding;

fLanguage

English

Journal_Title

Robotics and Automation, IEEE Transactions on

Publisher

ieee

ISSN

1042-296X

Type

jour

DOI

10.1109/70.760362

Filename

760362