In this paper, a technology was presented for scheduling of data exchange through a channel with centralized control (CC channel). MIL STD-1553B was considered as an example of CC channel. One of the basic requirements to algorithms and tools for scheduling of data exchange is support for customization according to specifics of the target class of RTA systems. A greedy scheme of exchange scheduling was presented, which meets this requirement. A new hybrid algorithm was proposed, which combines the greedy scheme and the ant colonymethod and enables automatic adaptation to the specifics of a particular set of input data. Experimental evaluation of greedy algorithms and this ant algorithm justifies the adaptiveness feature of the latter, which allows the ant algorithm to outperform greedy algorithms on most of the considered classes of input data, with realistic technological requirements to data exchange. Future work on the ant algorithm includes: (a) improving the algorithm in order to enable construction of complete schedules with high channel loads, for different classes of input data (section 6.3); (b) tuning the algorithm to efficiently support message sets with aliquant message frequencies and high channel loads (section 6.4). The presented technology was implemented in the Scheduler CAD tool system, which was successfully used for the generation of data exchange schedules for CC channels in RTA systems. Two case studies of industrial application of Scheduler CAD to design of MIL STD-1553B based RTA systems are presented in this paper. Future work on the technology as a whole includes its extension for advanced standards of CC channels, including Fibre Channel FC-AE-1553.


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    Titel :

    A technology for scheduling of data exchange over bus with centralized control in onboard avionics systems


    Weitere Titelangaben:

    Eine Technologie zur Planung des Datenaustausches per Bus mit zentralisierter Regelung in borgestützten Avionik-Systemen


    Beteiligte:
    Balashov, V.V. (Autor:in) / Balakhanov, V.A. (Autor:in) / Kostenko, V.A. (Autor:in) / Smeliansky, R.L. (Autor:in) / Kokarev, V.A. (Autor:in) / Shestov, P.E. (Autor:in)


    Erscheinungsdatum :

    2010


    Format / Umfang :

    12 Seiten, 4 Bilder, 4 Tabellen, 25 Quellen




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch