Journal of Navigation and Port Research 2013;37(4):337-343.
Published online August 31, 2013.
VTS에서 AIS데이터를 활용한 정박선의 선회중심 추정에 관한 연구
김광일, 정중식, 박계각
A Study on the Estimation of Center of Turning Circle of Anchoring Vessel using Automatic Identification System Data in VTS
Kwang-Il Kim, Jung Sik Jeong, Gyei-Kark Park
To ensure the safety for vessels anchored in stormy weather, duty officer and VTS operator have to frequently check whether their anchors are dragging. To judge dragging of the anchored vessel, it is important for VTS operator to recognize the turning circle and its center of the anchored vessel. The judgement for the anchored vessel dragging can be made by using Radar and AIS. If it is available, CCTV or eye-sighting can be used to know the center of turing circle. However, the VTS system collects individual ship's dynamic information from AIS and ARPA radar and monitors of the anchored vessels, it is difficult for VTS operator not only to get the detailed status information of the vessels, but also to know the center of turning circle . In this study, we propose an efficient algorithm to estimate the center of turning circle of anchored vessel by using the ship's heading and position data, which were from AIS. To verify the effectiveness of the proposed algorithm, the experimental study was made for the anchored vessel under real environments.
Key Words: anchored vessel;center of turning circle;judgement of anchor dragging;VTS;AIS

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