Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions

Deciding how to prevent discrete event systems (DESs) from reaching forbidden states is an important problem in the field of DES supervisory control. For DESs with uncontrollable events, linear constraint transformation becomes a popular technique for solving the forbidden state problem when Petri n...

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Published in:IEEE Access
Main Authors: Dan You, Shouguang Wang, Zhiwu Li, Chengying Wang
Format: Article
Language:English
Published: IEEE 2017-01-01
Subjects:
Online Access:https://ieeexplore.ieee.org/document/7907244/
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author Dan You
Shouguang Wang
Zhiwu Li
Chengying Wang
author_facet Dan You
Shouguang Wang
Zhiwu Li
Chengying Wang
author_sort Dan You
collection DOAJ
container_title IEEE Access
description Deciding how to prevent discrete event systems (DESs) from reaching forbidden states is an important problem in the field of DES supervisory control. For DESs with uncontrollable events, linear constraint transformation becomes a popular technique for solving the forbidden state problem when Petri nets are used as a modeling tool and control specifications are given in the form of linear constraints. This paper proposes a novel linear constraint transformation approach that is applicable to PT-ordinary Petri nets with uncontrollable subnets being forward-concurrent-free. For such nets, a linear constraint can be transformed into an optimal transformed one (i.e., a linear constraint that exactly characterizes the admissible marking set) by using the proposed approach, which is computationally shown to be of polynomial complexity with respect to the net size. An example is presented to illustrate the developed technique.
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spelling doaj-art-d1e1b48da26a4e65a026d5cc063772cd2025-08-19T20:49:40ZengIEEEIEEE Access2169-35362017-01-0156780679010.1109/ACCESS.2017.26960297907244Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable TransitionsDan You0https://orcid.org/0000-0001-9088-9672Shouguang Wang1https://orcid.org/0000-0002-8998-0433Zhiwu Li2Chengying Wang3School of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou, ChinaSchool of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou, ChinaSchool of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou, ChinaSchool of Information and Electronic Engineering, Zhejiang Gongshang University, Hangzhou, ChinaDeciding how to prevent discrete event systems (DESs) from reaching forbidden states is an important problem in the field of DES supervisory control. For DESs with uncontrollable events, linear constraint transformation becomes a popular technique for solving the forbidden state problem when Petri nets are used as a modeling tool and control specifications are given in the form of linear constraints. This paper proposes a novel linear constraint transformation approach that is applicable to PT-ordinary Petri nets with uncontrollable subnets being forward-concurrent-free. For such nets, a linear constraint can be transformed into an optimal transformed one (i.e., a linear constraint that exactly characterizes the admissible marking set) by using the proposed approach, which is computationally shown to be of polynomial complexity with respect to the net size. An example is presented to illustrate the developed technique.https://ieeexplore.ieee.org/document/7907244/Discrete event systemsPetri netsuncontrollable transitionslinear constraintsoptimal transformation
spellingShingle Dan You
Shouguang Wang
Zhiwu Li
Chengying Wang
Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions
Discrete event systems
Petri nets
uncontrollable transitions
linear constraints
optimal transformation
title Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions
title_full Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions
title_fullStr Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions
title_full_unstemmed Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions
title_short Computation of an Optimal Transformed Linear Constraint in a Class of Petri Nets With Uncontrollable Transitions
title_sort computation of an optimal transformed linear constraint in a class of petri nets with uncontrollable transitions
topic Discrete event systems
Petri nets
uncontrollable transitions
linear constraints
optimal transformation
url https://ieeexplore.ieee.org/document/7907244/
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