An underwater work system of the present disclosure acquires a relative position of an underwater vehicle relative to a surface ship at the start of searching work, the relative position being measured based on a sound wave transmitted from a wave transmitter. The underwater work system calculates a position of the underwater vehicle based on the acquired relative position. When a measurement error region whose center corresponds to the calculated position of the underwater vehicle and an expected laid region of a pipeline extending in a predetermined direction overlap each other, the underwater work system moves the underwater vehicle to such a position that the measurement error region and the expected laid region do not overlap each other, and then, makes the underwater vehicle perform crossing detection in which the underwater vehicle detects the presence or absence of the pipeline while crossing the expected laid region.


    Access

    Download


    Export, share and cite



    Title :

    UNDERWATER WORK SYSTEM


    Contributors:

    Publication date :

    2022-05-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen / G01S RADIO DIRECTION-FINDING , Funkpeilung



    UNDERWATER WORK TOOL AND UNDERWATER WORK SYSTEM

    YAMAOKA MASARU / MINETA TAKUYA / YOSHINAGA IKUO et al. | European Patent Office | 2020

    Free access

    Underwater work system

    OKAYA NORIYUKI / FUKUI KOICHI | European Patent Office | 2024

    Free access

    Underwater work system

    NORIYUKI OKAYA / KOICHI FUKUI | European Patent Office | 2023

    Free access

    Underwater work system

    OKAYA NORIYUKI / FUKUI KOICHI | European Patent Office | 2024

    Free access

    UNDERWATER WORK SYSTEM

    OKAYA NORIYUKI / FUKUI KOICHI | European Patent Office | 2021

    Free access