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http://dx.doi.org/10.6109/jkiice.2012.16.5.885

Design and Manufacturing a Synchronous Fash of LED Marine Lantern based on GPS-based  

Byun, Gi-Sig (부경대학교 제어계측공학과)
Kim, Gwan-Hyung (동명대학교 컴퓨터공학과)
Kim, Min (부경대학교 제어계측공학과)
Kim, Chun-Ho (뉴마린엔지니어링)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.16, no.5, 2012 , pp. 885-891 More about this Journal
Abstract
The synchronous flash of a marine lantern, differentiated from the flash pattern of other risk indicators, supports the safe sailing of vessels. General marine lanterns flash according to the flash protocol through sensing the day and the night. Thus, there can be time error over time and the marine lantern does not synchronously flash as a whole. To resolve this problem, this study designed LED marine lantern based on constant-current system using synchronous flash technique enabling all marine lanterns to keep its time based on GPS satellite time. Also we suggested a radiation method with an effective heat emission performance in the restricted and closed space of a marine lantern.
Keywords
GPS; Synchronous flashl; LED lamp; LED heat sink; LED constant current;
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