Fundamental study on a ship collision avoidance using radio wave detection from mobile phone

Research Project

Project/Area Number	15K06628
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	HIKIDA Kenjiro 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 (00415803)
Co-Investigator(Kenkyū-buntansha)	福戸淳司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 (40360713) 丹羽康之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 (50344239) 古賀禎国立研究開発法人海上・港湾・航空技術研究所, 電子航法研究所, 研究員 (70392785)
Research Collaborator	WATABE Yoichi 港湾空港技術研究所, 地盤研究領域
Project Period (FY)	2015-04-01 – 2018-03-31
Project Status	Completed (Fiscal Year 2017)
Budget Amount *help	¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000) Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000) Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000) Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Keywords	携帯端末 / 電波 / 位置探知 / 船舶 / 衝突予防
Outline of Final Research Achievements	In Japan, the number of ship collision accidents is gradually decreasing. However, accidents involving small-boats (under 20 gross tonnage) are not decreasing. The majority of small boats are fishing boats and pleasure boats. It is difficult to detect them since they are not equipping with AIS (Automatic Identification System) mandatory for large ships. In addition, since the small-boats are made of plastic materials and have few radio reflection, it is hard to detect small-boats even if by using RADAR. We pay attention to the fact that most of small-boat operators have mobile wireless devices such as mobile phones and smartphones and the small-boats could be detected by capturing radio signals. We develop a radio signal detection system for small-boat detection, and conducted fundamental experiments. As a result of the experiments, we confirmed that the system is able to detect the direction of a target (a mobile device) with the accuracy of ±10 degrees at a distance of 250 meters.