Results 251 to 260 of about 9,445,647 (302)

Supervisory control after perturbation

SMC 2000 Conference Proceedings. 2000 IEEE International Conference on Systems, Man and Cybernetics. 'Cybernetics Evolving to Systems, Humans, Organizations, and their Complex Interactions' (Cat. No.00CH37166), 2002
Discrete event systems undergo perturbations, such as failures, that disrupt the control system and reduce the anticipation capacities of the future evolution of the process. Using the (max,+) algebra, processes modelled by a timed event graph may be represented by a linear model.
Philippe Declerck, Roland Guihur
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Distributed linear supervisory control

53rd IEEE Conference on Decision and Control, 2014
In this work, we propose a distributed version of the logic-based supervisory adaptive control scheme. Given a network of agents whose dynamics contain unknown parameters, the distributed supervisory control scheme is used to assist the agents to converge to a certain set-point without requiring them to have explicit knowledge of that set-point. Unlike
Ali Khanafer 0002, Tamer Basar, Daniel Liberzon   +2 more
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Supervisory controls

Journal of Investment Compliance, 2004
The focus on supervision began in the 80’s when the insider trading scandal resulted in visions of Wall Street investment bankers in handcuffs being led away from their offices. The New York Stock Exchange was on the hot seat for perceived failings. The 90s were dominated by the “price‐fixing” scandal in the over‐the‐counter markets, with OTC traders ...
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Supervisory control and data acquisition

Proceedings of the IEEE, 1987
The acquisition of data, the processing of those data for use by the operator, and operator control of remote devices are the fundamental building blocks upon which all modern utility control systems are based. The systems to accomplish these functions are known as Supervisory Control and Data Acquisition (SCADA) systems.
Dennis J. Gaushell, Henry T. Darlington
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Design of supervisory machine control

2003 European Control Conference (ECC), 2003
This paper presents a basis for a framework for the design of supervisory machine control. Machine behaviour is described using the task resource system (TRS) paradigm. Analysis is performed to classify system descriptions leaving room for control choices up to a certain extent: selected untimed TRS, instantiated unselected TRS and TRS constraints.
Nieuwelaar, van den, N.J.M., Mortel-Fronczak, van de, J.M., Rooda, J.E.   +2 more
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Synthesizing Deterministic Controllers in Supervisory Control

2007
Supervisory control theory for discrete event systems is based on finite state automata whose inputs are partitioned into controllable and uncontrollable events. Well-known algorithms used in the Ramadge-Wonham framework disable or enable controllable events such that it is finally possible to reach designated final states from every reachable state ...
Andreas Morgenstern, Klaus Schneider 0001   +1 more
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Supervisory control of timed automata

1999 European Control Conference (ECC), 1999
Based on the framework of Ramadge and Wonham theory, this paper presents a methodology for the design of a supervisory control for timed discrete event systems. Timed automata in dense time domain are used as models. They are successively extended to region automata and r-region automata in which passing of time is considered as an event, either ...
Alexia Gouin, Laurent Libeaut, Jean-Louis Ferrier   +2 more
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Supervisory Control with Complete Observations

2013
Supervisory control is control of a behavior or, equivalently, of a discrete-event system in this chapter modeled as an automaton. Supervisory control is exerted by specifying after each observation the set of enabled events. The automaton then chooses an event from the subset of enabled events, makes a transition and produces the observed event, after
Masopust, T. (Tomáš), van Schuppen, J. H.   +1 more
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On the Architectures in Decentralized Supervisory Control

Proceedings of the 44th IEEE Conference on Decision and Control, 2006
In this paper, we clarify the notion of architecture in decentralized control, in order to investigate the realizability problem: given a discrete-event system, a desired behavior and an architecture for a decentralized control, can the desired behavior be achieved by decentralized controllers in accordance with the given architecture?
Pinchinat, Sophie, Riedweg, Stéephane
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On the supervisory control of marked graphs

2008 IEEE International Conference on Industrial Engineering and Engineering Management, 2008
This paper presents a control synthesis approach for discrete event systems modeled by marked graphs with uncontrollable and / or unobservable transitions. It solves forbidden state problems characterized by a set of General Mutual Exclusion Constraints.
Achour, Zied, Sava, Alexandre, Rezg, Nidhal   +2 more
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