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RISS 인기검색어
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- 저자 : Shigeyuki OKUDA (검색결과 3 건)
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Study on Application of Real Time AIS Information
Akihiko HORI,Yasuo ARAI,Shigeyuki OKUDA 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.2006 No.-
Now AIS (Automatic Identification System) has been under full operation for ocean-going vessels, and it is expected not only to identify target ships but also to take collision avoidance using AIS information with Radar and ARPA information in restricted waters. AIS information is very useful not only for target identifications but also for taking collision avoidance, but OOW (Officer OF Watch-keeping) should take care of systematic observation of AIS because of miss-operation or malfunction of AIS. In this paper, we propose the application of Onboard Ship Handling Simulator with visual system displayed 3D scene added AIS performance such as blind areas of Island, microwave propagation, etc. and maneuvering simulation using TK models, applied real time AIS information and research the effectiveness of this system for ship handling in restricted waters, and discus the principal issues through the on board experiments. Conclusion will be expected that; 1) systematic observation of AIS information using visual scene simulator with AIS information with be effectively done, 2) observation compared with Radar and ARPA information will be also useful to make a systematic observation, 3) using the recording and replay function of simulation will be useful not only for systematic observation but also to measure and to encourage officers’ skill.
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Perception of Ship’s Movement in Docking Maneuvering using Ship-Handling Simulator
Yasuo ARAI,Taro MINAMIYA,Shigeyuki OKUDA 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.2006 No.-
Recently it is coming to be high reality on visual system in ship-handling simulator depending on the technical development of 3D computer graphics. Even with high reality, it is possible that visual information presented seafarers through screen or display is not equivalent to the real world. In docking maneuvering, visual targets or obstructs are sighted close to ship’s operator or within few hundred meters, so it might be possible to affect visual information such as the difference between both eyes' and single eye’s visual sight. Because it is not possible to perceive of very slow ship’s movement by visual in case of very large vessels, so the Doppler Docking SONAR and/or Docking Speed and Distance Measurement Equipment were developed and applied for safety docking maneuvering. By the way, the simulator training includes the ship’s maneuvering training in docking, but in Ship-handling Simulator and also onboard, there are some limitations of perception of ship’s movement with visual information. In this paper, perception of ship’s movement with visual system in Ship-handling Simulator and competition of performances of visual systems that are conventional screen type with Fixed Eye-point system and Stereo Visual System will be discussed after experiences with visual systems to goals the performances of Full Mission Simulator. We got some conclusions not only on the effectiveness for visual system but also on the human behavior in docking maneuver.
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Performance Requirement of Ship’s Speed in Docking/Anchoring Maneuvering
Kimio TATSUMI,Hidenobu FUJII,Takashi KUBOTA,Shigeyuki OKUDA,Yasuo ARAI,Nobuyoshi KOUGUCHI,Kozaburo YAMADA 한국항해항만학회 2006 한국항해항만학회 학술대회논문집 Vol.1 No.-
Questionnaire survey on performance requirement of ship’s speed such as not only accuracy but also response and robustness were carried out, and the experiments to survey the GPS performances of static and dynamic characteristics were carried out simultaneously. In this paper, the questionnaire survey focusing on docking maneuvering, some analytic results of the survey, the results of GPS performance, and the possibility of adaptation for docking maneuvering on SDME and GPS are discussed. Consequently, from the results of questionnaire survey the performance requirement of ship’s speed in docking/anchoring maneuvering have need under 1cm/sec on the standard deviation, and speed information from GPS was adopted to use maneuvering information in docking/anchoring.
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