A system is disclosed comprising a transmitter which is to be located, at least 3 receivers and a control unit. The receivers are arranged for determining the location using trilateration and time-of-flight (TOF) information, and the control unit is arranged to generate an output signal in response to the transmitter being determined as not located in a pre-determined zone. The transmitter may be a wireless tag with a unique identification, worn for example as a wristband or neck pendant, or placed on marine equipment. In one embodiment, the system is a maritime tracking system wherein the receivers are mounted on a vessel or ship, and the system is used to assist crew members in man overboard situations in which the pre-determined zone is a safe area i.e. aboard the vessel. The system may also include a memory unit and/or GPS module, and the receivers may be arranged in a triangular layout in a plane parallel or a plane perpendicular to the plane of the pre-determine region.


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    Titel :

    A system and/or method for determining the location of a transmitter


    Beteiligte:
    JOSHUA LANGFORD (Autor:in) / HUGO SHELLEY (Autor:in)

    Erscheinungsdatum :

    05.10.2016


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    G08B SIGNALLING OR CALLING SYSTEMS , Signalisier- oder Rufsysteme / B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / G01S RADIO DIRECTION-FINDING , Funkpeilung



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