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Generalized Detectability for Discrete Event Systems. [PDF]

open access: yesSyst Control Lett, 2011
In our previous work, we investigated detectability of discrete event systems, which is defined as the ability to determine the current and subsequent states of a system based on observation. For different applications, we defined four types of detectabilities: (weak) detectability, strong detectability, (weak) periodic detectability, and strong ...
Shu S, Lin F.
europepmc   +4 more sources

Detectability of Timed Discrete Event Systems

open access: yesIEEE Access, 2023
This paper introduces T-detectability, which extends detectability to timed discrete event systems within the context of communication networks. We propose network T-detectability to address the challenges posed by observation delays and losses in ...
Chengshi Miao
doaj   +1 more source

Overview of Opacity in Discrete Event Systems

open access: yesIEEE Access, 2020
In recent years, opacity has received increasing attention in terms of analyzing security and privacy problems. Opacity is a confidentiality property that characterizes a system's ability to hide its secret information from any external intruders.
Ye Guo   +4 more
doaj   +1 more source

Robust predictability in discrete event systems under sensor attacks

open access: yesFrontiers in Physics, 2023
The problem of robust predictability against sensor attacks is investigated. The objective of a diagnoser is to predict the occurrence of a critical event of a discrete event system (DES) under partial observation.
Qi Zhang
doaj   +1 more source

Joint State Estimation Under Attack of Discrete Event Systems

open access: yesIEEE Access, 2021
The problem of state estimation in the setting of partially-observed discrete event systems subject to cyber attacks is considered. An operator observes a plant through a natural projection that hides the occurrence of certain events.
Qi Zhang   +3 more
doaj   +1 more source

Hidden Markov Models as a Process Monitor in Robotic Assembly [PDF]

open access: yesModeling, Identification and Control, 1999
A process monitor for robotic assembly based on hidden Markov models (HMMs) is presented. The HMM process monitor is based on the dynamic force/torque signals arising from interaction between the workpiece and the environment.
Geir E. Hovland, Brenan J. McCarragher
doaj   +1 more source

Detectability in Discrete Event Systems Using Unbounded Petri Nets

open access: yesMathematics, 2023
This paper investigated the verification of detectability for discrete event systems based on a class of partially observed unbounded Petri nets. In an unbounded net system, all transitions and partial places are assumed to be unobservable.
Haoming Zhu   +3 more
doaj   +1 more source

Event-Triggered Disturbance Rejection Control of Discrete Systems

open access: yesIEEE Access, 2020
This paper considers event-triggered disturbance rejection control for discrete time linear systems. A novel event-based disturbance rejection controller is designed, and sufficient conditions are given to guarantee that the closed-loop system is ...
Peng Cheng   +4 more
doaj   +1 more source

Event Scheduling in Simulation of Discrete Event Systems with Application on Queuing Systems. [PDF]

open access: yesالمجلة العراقية للعلوم الاحصائية, 2010
Queuing theory and other of discrete and continuous event systems have theory aesthetic but the more assumptions which indepent these theories are not accurate as compared with real situation, also the queue problem is one of the most scientific problems
doaj   +1 more source

Modeling and Control of Discrete Event and Hybrid Systems Using Petri Nets and OPC Unified Architecture

open access: yesIEEE Access, 2022
Discrete event system is a type of system, which changes its state based on asynchronously occuring events. One of many approaches of describing this category of systems is a mathematical formalism called the Petri Net.
Erik Kucera   +3 more
doaj   +1 more source

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