In an underwater work system of the present disclosure, a processing device acquires a relative position of an underwater vehicle relative to a surface ship from an acoustic positioning system at the start of searching work. The processing device 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 processing device 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.
Underwater work system
2024-08-29
Patent
Electronic Resource
English