Disturbance estimating apparatus, method, and computer program
US12392613B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2023 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Dec 28, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB63B2213/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A disturbance estimation apparatus including a navigation data receiver, a thrust data receiver, and processing circuitry is provided. The navigation data receiver acquires navigation data including an actual position and time of the ship on a water surface. The thrust data receiver receives thrust data indicating a magnitude and a direction of a thrust force of the ship. The processing circuitry estimates a predicted position of the ship under an absence of a disturbance condition at a predetermined time in the future using a first state estimation model based on the navigation data and the thrust data and determines disturbance data including a drift direction of the ship drifted by an external force based on a difference between the predicted position estimated by the first state estimation model and an actual position of the ship at the predetermined time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.