Title
Control of Temporal Constraints Based on Dioid Algebra for Timed Event Graphs
Abstract
We consider a class of controlled timed event graphs subject to strict temporal constraints. Such a graph is deterministic, in the sense that its behavior only depends on the initial marking and on the control that is applied. As it is wellknown, this behavior can be modelled by a system of difference equations that are linear in the Min-Plus algebra (R 驴 {+驴}, min, plus). The temporal constraint is represented by an inequation, that is also linear in the min-plus algebra. Then, a method for the synthesis of a control law ensuring the respect of the constraint is described. Two sufficient conditions are given, in terms of initial tokens and delays along the graph. We give explicit formulas characterizing a control law, which, if the conditions are satisfied, ensures the validity of the temporal constraints. This control law is also defined as a linear system over the Min-Plus algebra. It is a causal state feedback, involving delays. The method is illustrated on a production system.
Year
DOI
Venue
2005
10.1109/IPDPS.2005.153
IPDPS
Keywords
Field
DocType
timed event graphs,dioid algebra,difference equation,event graph,initial token,control law,linear system,causal state feedback,strict temporal constraint,temporal constraint,production system,min-plus algebra,difference equations,linear systems,control systems,linear algebra,algebra,satisfiability,food industry,graph theory
Graph theory,System of difference equations,Linear algebra,Graph,Constraint algebra,Linear system,Algebra,Computer science,Inequation,Constraint theory
Conference
ISBN
Citations 
PageRank 
0-7695-2312-9
2
0.54
References 
Authors
4
3
Name
Order
Citations
PageRank
Said Amari1617.27
Jean Jacques Loiseau210619.60
Demongodin Isabel36110.10