A vital programmable logic device (VPD) is provided having at least two microprocessors. The VPD is configured to provide failsafe operation of a vital control system while operating in a closed circuit environment. In at least one embodiment of the present invention, railroad grade crossing signals are controlled by the VPD.


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    Titel :

    VITAL SOLID STATE CONTROLLER


    Weitere Titelangaben:

    DISPOSITIF DE COMMANDE D'ETAT SOLIDE VITAL


    Beteiligte:
    BALDWIN DAVID (Autor:in) / ASHRAF AHTASHAM (Autor:in)

    Erscheinungsdatum :

    10.11.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G05B Steuer- oder Regelsysteme allgemein , CONTROL OR REGULATING SYSTEMS IN GENERAL / B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



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