Underwater work system
US11964745B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2022 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Aug 14, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63G2008/004
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.