Results 41 to 50 of about 81,934 (166)

Event-Based Modeling of Input Signal Behaviors for Discrete-Event Controllers

open access: yesApplied Sciences
Controllers for discrete-event systems are commonly designed using state-based formalisms, like state diagrams and Petri nets. These formalisms are strongly supported by the concept of events, which, from an automation system perspective, can be ...
Luis Gomes   +4 more
doaj   +1 more source

Calculating Restart States for Systems Modeled by Operations Using Supervisory Control Theory

open access: yesMachines, 2013
This paper presents a supervisory control theory based offline method for calculating restart states in a manufacturing control system. Given these precalculated restart states, an operator can be given correct instructions for how to resynchronize the ...
Patrik Bergagård, Martin Fabian
doaj   +1 more source

Discrete Event Simulation of Hybrid Systems [PDF]

open access: yesSIAM Journal on Scientific Computing, 2004
Summary: This paper describes the quantization-based integration methods and extends their use to the simulation of hybrid systems. Using the fact that these methods approximate ordinary differential equations (ODEs) and differential algebraic equations (DAEs) by discrete event systems, it is shown how hybrid systems can be approximated by pure ...
openaire   +2 more sources

A discrete event model for real time system simulation

open access: yesJournal of Computer Science and Technology, 2012
In this work we present a discrete event model to design and implement a real time system simulator. This kind of software is useful to verify and evaluate algorithms and models, and to compute performance metrics. The discrete event model fits perfectly
Francisco E. Páez   +4 more
doaj  

Conservative simulation for discrete event systems

open access: yesInformatica, 1998
Summary: More real systems have many components and their simulation requires significant execution times. The practical needs have conducted to distributed simulation rather than sequential method. Asynchronous parallel discrete event simulation (PDES) is studied and its methodology is presented. The paper presents the conservative methodology of PDES
openaire   +2 more sources

On the Design of Adaptive Supervisors for Discrete Event Systems [PDF]

open access: yesJournal of Systemics, Cybernetics and Informatics, 2006
The supervised control of complex event-driven Discrete Event Systems (DESs) such as those present in manufacturing systems, or the communication processes involved therein, continue to pose a challenge to system designers.
Vigyan Chandra, Siddhartha Bhattacharyya
doaj  

On the Timing of Discrete Events in Event-Driven Control Systems [PDF]

open access: yes, 2008
This paper presents an analysis method to determine offline at what intervals have to be taken the samples for various types of event- driven control systems.
Velasco García, Manel   +2 more
openaire   +3 more sources

Supervisor Design for Minimal Event Observation in Discrete Event Systems: A Linear Programming Approach

open access: yesMathematics
This paper studies the supervisory control of discrete event systems (DESs) from an event observation perspective and addresses the problem of supervisor design with minimal observation.
Menghuan Hu, Yufeng Chen
doaj   +1 more source

State-Based Control of Discrete-Event Systems Under Partial Observation

open access: yesIEEE Access, 2018
This paper describes a state-based approach for supervisor synthesis of discrete-event systems under partial observation, based on predicates and predicate transformers.
Deguang Wang   +3 more
doaj   +1 more source

Opacity Verification for a Class of Modular Discrete Event Systems

open access: yesIEEE Access
The verification of opacity of discrete event systems (DESs) is subjected to the curse of dimensionality because this issue has been proven to be EXPSPACE-complete. Therefore, how to improve the efficiency of opacity verification in DESs is crucial.
Jingkai Yang, Weilin Deng
doaj   +1 more source

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