We study synthesis of controllers for real-time systems, where the objective is to stay in a given safe set. The problem is solved by obtaining winning strategies in the setting of concurrent two-player timed automaton games with safety objectives. To prevent a player from winning by blocking time, we restrict each player to strategies that ensure that the player cannot be responsible for causing a zeno run. We construct winning strategies for the controller which require access only to (1) the system clocks (thus, controllers which require their own internal infinitely precise clocks are not necessary), and (2) a linear (in the number of clocks) number of memory bits. Precisely, we show that for safety objectives, a memory of size (3 · |C|+lg(|C|+1)) bits suffices for winning controller strategies, where C is the set of clocks of the timed automaton game, significantly improving the previous known exponential bound. We also settle the open question of whether winning region controller strategies require memory for safety objectives by showing with an example the necessity of memory for region strategies to win for safety objectives.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Synthesis of memory efficient real time controllers for safety objectives


    Beteiligte:

    Erscheinungsdatum :

    2011-01-01


    Anmerkungen:

    Chatterjee K, Prabhu V. Synthesis of memory efficient real time controllers for safety objectives. In: Springer; 2011:221-230. doi: 10.1145/1967701.1967734


    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    DDC:    629




    Reduced Order Controllers for Discrete-Time Systems with Mixed H~2/H Performance Objectives

    Bambang, R. T. / Shimemura, E. | British Library Online Contents | 1992



    Toward Real Time Neural Net Flight Controllers

    Jorgensen, C. C. / Mah, R. W. / Ross, J. et al. | NTRS | 1994


    Real-Time Adaptation of Mode Transition Controllers

    Freeman Rufus / George Vachtsevanos / Bonnie Heck | AIAA | 2002