نشریه بین المللی مهندسی صنایع و تحقیقات تولید
دانشگاه علم و صنعت ایران
چهارشنبه 24 مرداد 1403
[Archive]
جلد 24، شماره 1 - ( 11-1391 )
جلد 24 شماره 1 صفحات 70-59 |
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Dideban A, Zareiee M, Orouji A A, rezaei soleymanpour H. Simplification of a Petri Net controller in industrial systems. IJIEPR 2013; 24 (1) :59-70
URL: http://ijiepr.iust.ac.ir/article-1-299-fa.html
URL: http://ijiepr.iust.ac.ir/article-1-299-fa.html
Simplification of a Petri Net controller in industrial systems. نشریه بین المللی مهندسی صنایع و تحقیقات تولید. 1391; 24 (1) :59-70
چکیده: (6728 مشاهده)
This paper deals with the problem of forbidden states in discrete event systems modeled by Petri Net. To avoid the forbidden states, some constraints which are called Generalized Mutual Exclusion Constraints can be assigned to them. Enforcing these constraints on the system can be performed using control places. However, when the number of these constraints is large, a large number of control places must be connected to the system which complicates the model of controller. In this paper, the objective is to propose a general method for reducing the number of the mentioned constraints and consequently the number of control places. This method is based on mixing some constraints for obtaining a constraint verifying all of them which is performed using the optimization algorithms. The obtained controller after reducing the number of the control places is maximally permissive.
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