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Timed vs. Time-triggered automata

  • Pavel Krčál
  • , Leonid Mokrushin
  • , P. S. Thiagarajan
  • , Wang Yi
  • Uppsala University
  • National University of Singapore

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

To establish a semantic foundation for the synthesis of executable programs from timed models, we study in what sense the timed language (i.e. sequences of events with real-valued time-stamps) of a timed automaton is recognized by a digital machine. Based on the noninstant observability of events, we propose an alternative semantics for timed automata. We show that the new semantics gives rise to a natural notion of digitalization for timed languages. As a model for digital machines we use time-triggered automata - a subclass of timed automata with simplified syntax accepting digitalized timed languages. A time-triggered automaton is essentially a time table for a digital machine (or a digital controller), describing what the machine should do at a given time point, and it can be easily transformed to an executable program. Finally, we present a method to check whether a time-triggered automaton recognizes the language of a timed automaton according to the new semantics.

Original languageEnglish
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
EditorsPhilippa Gardner, Nobuko Yoshida
PublisherSpringer Verlag
Pages340-354
Number of pages15
ISBN (Print)354022940X, 9783540229407
DOIs
StatePublished - 2004
Externally publishedYes

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume3170
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

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