US 12,442,636 B2
Sea condition information providing device, sea condition information providing system, sea condition information providing program, and sea condition information providing method
Kentaro Oda, Kagoshima (JP); and Yosuke Mizukami, Nagasaki (JP)
Assigned to Meta Systems Laboratories, Inc., Kagoshima (JP); and Ocean Solution Technology Kabushiki Kaisha, Nagasaki (JP)
Appl. No. 18/880,238
Filed by Meta Systems Laboratories, Inc., Kagoshima (JP); and Ocean Solution Technology Kabushiki Kaisha, Nagasaki (JP)
PCT Filed Jun. 14, 2023, PCT No. PCT/JP2023/022033
§ 371(c)(1), (2) Date Dec. 30, 2024,
PCT Pub. No. WO2024/004649, PCT Pub. Date Jan. 4, 2024.
Claims priority of application No. 2022-106410 (JP), filed on Jun. 30, 2022.
Prior Publication US 2025/0257994 A1, Aug. 14, 2025
Int. Cl. G01C 13/00 (2006.01)
CPC G01C 13/002 (2013.01) [G01C 13/008 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A sea condition information providing device comprising:
a first layer tidal current data acquirer to acquire first layer tidal current data that represent an in-plane distribution in a first layer of the sea of a first layer vector quantity representing a direction and a speed of a tidal current in the first layer and that include the in-plane distribution of the first layer vector quantity as a future predicted value;
a second layer tidal current data acquirer to acquire second layer tidal current data that represent an in-plane distribution in a second layer of a second layer vector quantity representing a direction and a speed of a tidal current in the second layer having a deeper water depth than the first layer and that include the in-plane distribution of the second layer vector quantity as a future predicted value;
an inter-layer tidal current difference calculator to calculate, by using the first layer tidal current data and the second layer tidal current data, inter-layer tidal current difference data that represent an in-plane distribution of a difference vector quantity being a difference between the first layer vector quantity and the second layer vector quantity, the in-plane distribution being parallel to the first layer and the second layer;
a display controller to perform inter-layer tidal current difference display control for displaying, over a map, an inter-layer tidal current difference distribution map that visualizes the in-plane distribution of the difference vector quantity represented by the inter-layer tidal current difference data; and
a local region designation acceptor to accept, from a user, designation of a local region in the sea on the map displayed by the display controller, wherein,
when designation of the local region is accepted by the local region designation acceptor,
(i) the inter-layer tidal current difference calculator calculates, by using the first layer tidal current data and the second layer tidal current data, the inter-layer tidal current difference data about the local region for future n (note that n is a natural number equal to or more than two) unit periods, and
(ii) the display controller performs local tidal current difference image display control for creating, by the unit period, a local tidal current difference image in which the inter-layer tidal current difference distribution map of the local region overlaps the map of the local region, by using the inter-layer tidal current difference data about the local region for future n unit periods, and displaying the created local tidal current difference image for future n unit periods.