Improvement of ship speed estimation using voyage history and other ships' information

2016 Fiscal Year Final Research Report

• Project/Area Number: 26420837
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Naval and maritime engineering
• Research Institution: National Institute of Maritime, Port and Aviation Technology
• Principal Investigator: KOBAYASHI MITSURU 国立研究開発法人海上・港湾・航空技術研究所, その他部局等, 研究員 (10373416)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 海流推定 / ウェザールーティング / AIS / 海事システム

Outline of Final Research Achievements

Ocean current estimation has been widely used for weather routing and energy-saving navigation. Increasing accuracy of the estimation makes energy-saving navigation more efficient. Ocean current have been estimated by solving ocean dynamic models and by being assimilated with the satellite observation data so far. However, there are some differences between estimated current data and actual current state which can be seen on site. This study proposes the method for current estimation by means of ships’ navigation data collected from coastal AIS receivers. In this experimental results, estimation accuracy of the proposed method was the same level in comparison with that of existing estimation method in the entire coastal area of Japan. The results show that in Kuroshio watershed area which is susceptible to affect weather routing navigation due to especially high-speed ocean current, the estimation error was decreased to 79~88% of those of existing estimation.

Free Research Field

船舶海洋工学、数理工学