A rescue system 10 for rescuing a mariner at sea, comprises a distress beacon 11 for the mariner, for example in a man overboard situation (MOB). The distress beacon comprises a transmitter (111, figure 1) arranged to transmit a first acoustic signal at a first frequency in water. A receiver 12 receives the transmitted acoustic signal, and activates a controller 13 which launches an autonomous watercraft 14 for rescuing the mariner. Also disclosed is an acoustic transmitter 11 which uses a frequency of between 80 and 400 kHZ. Also disclosed is an autonomous watercraft that comprises a second transmitter (141, figure 1), which emits a second acoustic signal, and may communicate with the distress beacon, and the autonomous watercraft may determine it’s bearing and speed in response to the received signal.


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    Titel :

    Transmitter and receiver


    Beteiligte:

    Erscheinungsdatum :

    2022-06-22


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Englisch


    Klassifikation :

    IPC:    B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / G01S RADIO DIRECTION-FINDING , Funkpeilung



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