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.


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Vital solid state controller


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

    Erscheinungsdatum :

    30.06.2015


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B61L Leiten des Eisenbahnverkehrs , GUIDING RAILWAY TRAFFIC



    VITAL SOLID STATE CONTROLLER

    BALDWIN DAVID / ASHRAF AHTASHAM | Europäisches Patentamt | 2015

    Freier Zugriff

    VITAL RELAY ASSEMBLY WITH MODULAR SOLID-STATE CURRENT-LIMITING

    DINGMAN MATTHEW | Europäisches Patentamt | 2019

    Freier Zugriff

    Solid-state controller

    Tema Archiv | 1975


    Solid-state controller

    Bailey, C. L. | NTRS | 1974


    VITAL RELAY ASSEMBLY FOR MODULAR SOLID-STATE CURRENT-LIMITING

    DINGMAN MATTHEW | Europäisches Patentamt | 2021

    Freier Zugriff