Title:
漁網具動態推定装置、漁網具動態推定方法、漁網具動態推定プログラム、操業支援装置、操業支援方法、および、操業支援プログラム
Document Type and Number:
Japanese Patent JP6923152
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a movement estimation technology of fishing netting in which error is more reduced to the real movement of the underwater fishing netting.SOLUTION: A fishing netting movement estimation apparatus includes a data assimilation processing unit and an observation value acquisition unit. The data assimilation processing unit has a prior state estimated value calculation unit 111 and a state estimated value calculation unit 112. A position of a material point or velocity for configuring a calculation model being provided for numerical value simulation of the underwater movement of the fishing netting is input in the prior state estimated value calculation unit 111. The prior state estimated value calculation unit 111 calculates the position of the next time of the material point or the prior state estimated value of the velocity by using the material point or the velocity for configuring the calculation model being provided for the numerical value simulation of the underwater movement of the fishing netting and an underwater motion equation of the fishing netting. The observation value acquisition unit acquires an observation value of the net hem depth of the fishing netting, and calculates the state estimated value obtained by modifying the position of the material point or the velocity by the data assimilation processing using the observation value and the prior state estimated value in the state estimated value calculation unit 112.SELECTED DRAWING: Figure 1
Inventors:
Takagi power
Shintaro Gomi
Norio Tanada
Katsuya Suzuki
Yoshihiro Nishiyama
Rika Shiraki
Shintaro Gomi
Norio Tanada
Katsuya Suzuki
Yoshihiro Nishiyama
Rika Shiraki
Application Number:
JP2017048834A
Publication Date:
August 18, 2021
Filing Date:
March 14, 2017
Export Citation:
Assignee:
National University Corporation Hokkaido University
Nitto Seiki Co., Ltd.
FURUNO ELECTRIC COMPANY,LIMITED
Nitto Seiki Co., Ltd.
FURUNO ELECTRIC COMPANY,LIMITED
International Classes:
A01K75/00
Domestic Patent References:
| JP3870359B2 | ||||
| JP2003090888A | ||||
| JP2015121439A | ||||
| JP55149073A | ||||
| JP54106859U | ||||
| JP2005245207A |
Foreign References:
| US20140373425 |
Other References:
データ同化の考え方とその方法,MTI-HandBook,平成21年度MTI研究会サイエンスセッション,p.1-9
Attorney, Agent or Firm:
Kaede International Patent Office