Title:
SHIP SPEED MEASURING DEVICE AND SHIP SPEED MEASURING METHOD
Document Type and Number:
Japanese Patent JP2023146546
Kind Code:
A
Abstract:
To provide a ship speed measuring device and a ship speed measuring method capable of more accurately measuring the counter water ship speed.SOLUTION: A ship speed measuring device 1 includes: a transducer 20 for transmitting an ultrasonic wave into water and receiving a reflected wave of the ultrasonic wave; and a signal processing circuit 110 for calculating the counter water ship speed of a ship in which the transducer 20 is installed on the basis of a reception signal outputted from the transducer 20. The signal processing circuit 110 specifies, on the basis of the reception signal, the target depth at which the vertical counter water vessel speed is substantially null, and acquires the counter water vessel speed in the traveling direction with respect to the target depth as the counter water vessel speed of the ship.SELECTED DRAWING: Figure 1
Inventors:
KAWANAMI TOSHI
MUSHIAKI MASAHIKO
MUSHIAKI MASAHIKO
Application Number:
JP2022053775A
Publication Date:
October 12, 2023
Filing Date:
March 29, 2022
Export Citation:
Assignee:
FURUNO ELECTRIC CO
International Classes:
G01S15/50; G01P5/00
Attorney, Agent or Firm:
Masamasa Shibano
Makoto Ohashi
Makoto Ohashi
Previous Patent: Print management system and print management method
Next Patent: Extraction program, equipment and method
Next Patent: Extraction program, equipment and method