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.


    Access

    Download


    Export, share and cite



    Title :

    Transmitter and receiver


    Contributors:

    Publication date :

    2022-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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



    TRANSMITTER, AND RECEIVER

    FURUMACHI RYOHEI / KADOTA SATOSHI / HARADA KANA | European Patent Office | 2020

    Free access

    TRANSMITTER AND RECEIVER

    KENT LIONEL / BRAY MARK | European Patent Office | 2019

    Free access

    TRANSMITTER AND RECEIVER

    European Patent Office | 2019

    Free access

    RECEIVER, AND TRANSMITTER UNIT

    TSUJITA YASUHISA / FUJII KEIYU | European Patent Office | 2018

    Free access

    Receiver and transmitter unit

    TSUJITA YASUHISA / FUJII KEIYU | European Patent Office | 2019

    Free access