Title:
DISTURBANCE ESTIMATION DEVICE, DISTURBANCE ESTIMATION METHOD, AND DISTURBANCE ESTIMATION PROGRAM
Document Type and Number:
Japanese Patent JP2023183382
Kind Code:
A
Abstract:
To provide a method and a device for timely and accurately estimating a disturbance working on a vessel for navigating to a destination faster and maintaining a vessel at a fixed position.SOLUTION: A disturbance estimation device includes a navigation information reception unit, a propulsion information reception unit, a position estimation unit, and a disturbance calculation unit. The navigation information reception unit acquires navigation information including an actual position of a vessel on a water surface and a time. The propulsion information reception unit receives propulsion information indicating size and a direction of propulsion force of the vessel. The position estimation unit estimates a predicted position of the vessel with no disturbance state at a prescribed time in the future by using a state estimation model based on the navigation information and the propulsion information. The disturbance calculation unit acquires disturbance information including a drifting direction of the vessel drifting by external force based on a difference between the predicted position and the actual position of the vessel at the prescribed time.SELECTED DRAWING: Figure 1
Inventors:
TAKAHASHI TOMOYASU
MIYABE YUTA
MIYABE YUTA
Application Number:
JP2023084199A
Publication Date:
December 27, 2023
Filing Date:
May 22, 2023
Export Citation:
Assignee:
FURUNO ELECTRIC CO
International Classes:
B63B79/20; B63B49/00; B63B79/15; B63B79/40
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