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Title:
HYDROGRAPHIC PHENOMENA ESTIMATION APPARATUS AND HYDROGRAPHIC PHENOMENA ESTIMATION METHOD
Document Type and Number:
WIPO Patent Application WO/2017/086482
Kind Code:
A1
Abstract:
The present invention is provided with: a record storing means for storing a record of ship body movement data; a ship body status data calculation means for calculating a current ship body status data of a ship on the basis of the record of ship body movement data stored via the record storing means; a cross-spectrum calculation means for calculating the cross-spectrum of respective ship body movement of rolling, pitching and vertical swing on the basis of the record of ship body movement data; a ship body response function calculation means for calculating a ship body response function on the basis of the ship body status data; and hydrographic phenomena estimation means for estimating hydrographic conditions in a sea area through which the ship body is cruising on the basis of the cross-spectrum of the respective ship body movement and the ship body response function.

Inventors:
TAMASHIMA Masahiro (6F., Gibralta Seimei Bldg., 1-7, Tokiwacho, Sasebo-sh, Nagasaki 53, 〒8570053, JP)
TERADA Daisuke (7620-7 Hasaki, Kamisu-sh, Ibaraki 08, 〒3140408, JP)
MATSUDA Akihiko (7620-7 Hasaki, Kamisu-sh, Ibaraki 08, 〒3140408, JP)
MAENO Hitoshi (9-52, Ashihara-cho, Nishinomiya Cit, Hyogo 80, 〒6628580, JP)
HAYASHI Koji (9-52, Ashihara-cho, Nishinomiya Cit, Hyogo 80, 〒6628580, JP)
Application Number:
JP2016/084373
Publication Date:
May 26, 2017
Filing Date:
November 20, 2016
Export Citation:
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Assignee:
FLUID TECHNO CO., LTD. (6F. Gibralta Seimei Bldg, 1-7 Tokiwacho, Sasebo-sh, Nagasaki 53, 〒8570053, JP)
JAPAN FISHERIES RESEARCH AND EDUCATION AGENCY (3-3 Minato Mirai 2-chome, Nishi-ku Yokohama-sh, Kanagawa 15, 〒2206115, JP)
FURUNO ELECTRIC CO., LTD. (9-52, Ashihara-cho Nishinomiya Cit, Hyogo 80, 〒6628580, JP)
International Classes:
G01W1/00; G01D21/00; B63B49/00; G01C23/00; G08G3/00
Foreign References:
JP2007171146A2007-07-05
JPS61212714A1986-09-20
JP2003302221A2003-10-24
Other References:
DAISUKE TERADA ET AL.: "Online Estimation of Directional Wave Spectra Based on Recursive Bayesian Modeling", THE JOURNAL OF JAPAN INSTITUTE OF NAVIGATION, vol. 108, 25 March 2003 (2003-03-25), pages 97 - 104, XP055451211
TOSHIO ISEKI: "Real-time Estimation of Directional Wave Spectra Using Non-Stationary Ship Motion Data", THE JOURNAL OF JAPAN INSTITUTE OF NAVIGATION, vol. 120, 25 March 2009 (2009-03-25), pages 117 - 123, XP055383671
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