US 12,275,508 B2
Watercraft control system, watercraft control method, program, and vehicle control system
Masato Shirao, Yokohama (JP); Marino Akita, Yokohama (JP); and Takafumi Oshima, Yokohama (JP)
Assigned to NHK SPRING CO., LTD., Yokohama (JP)
Appl. No. 18/008,817
Filed by NHK SPRING Co., Ltd., Yokohama (JP)
PCT Filed Jun. 8, 2021, PCT No. PCT/JP2021/021743
§ 371(c)(1), (2) Date Dec. 7, 2022,
PCT Pub. No. WO2021/251380, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 2020-101114 (JP), filed on Jun. 10, 2020.
Prior Publication US 2023/0227135 A1, Jul. 20, 2023
Int. Cl. B63C 9/00 (2006.01); B63H 21/21 (2006.01); G05D 1/00 (2006.01)
CPC B63C 9/0005 (2013.01) [B63H 21/21 (2013.01); G05D 1/0206 (2013.01); B63H 2021/216 (2013.01)] 12 Claims
OG exemplary drawing
 
10. A watercraft control method for use in a watercraft control system including a watercraft and a communication device, the watercraft control method comprising:
a communication device location detection step of detecting a location of the communication device;
a watercraft location detection step of detecting a location of the watercraft; and
a difference calculation step of calculating a difference between the location of the communication device detected in the communication device location detection step and the location of the watercraft detected in the watercraft location detection step as a location difference at an identical location, when a watercraft operator or an occupant is located on the watercraft; and
a detected location correction step of correcting at least one of the location of the communication device detected in the communication device location detection step and the location of the watercraft detected in the watercraft location detection step on the basis of the location difference at the identical location, when the watercraft and the communication device carried by the watercraft operator or the occupant are away from each other.