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유승원(Seung-Won Yu),조성웅(Sung-Woong Jo),장준혁(Jun-Hyuk Jang),심우성(Woo-Seong Shim) 한국항해항만학회 2018 한국항해항만학회 학술대회논문집 Vol.2018 No.추계
본 논문은 IMO 차세대 해양안전종합관리체계 운영시스템 구축 사업과 주요 통신 인프라인 초고속 해상무선통신망(LTE-Maritime) 구축 사업의 현황과 향후 계획에 대해서 설명하였다. This paper presents a current status and perspectives of Operation system of SMART-Navigation and LTE-Maritime as major communication infrastructure of SMART-Navigation.
해상용 LED(Light Emitting Diode) 등명기 연구개발
정학근(Hak-Geun Jeong),정봉만(Bong-Man Jung),한수빈(Su-Bin Han),유승원(Seong-Won Yu),김훈(Hoon-Kim) 한국조명·전기설비학회 2004 한국조명·전기설비학회 학술대회논문집 Vol.2004 No.5월
A high light lantern system using LEDs is composed of power supply, flash controller, and daylight controller and proper case considering work condition. The performance of developed LED lantern is better than that of the existing marine lantern using an incandescent electric lamp and that of foreign products(Vega LED lantern made in New Zealand, Tideland system made in America). The electric consumption of our products is 30% compared with that of existing marine lantern using an incandescent electric lamp, and the luminous intensity of them is 200% to 400% compared with that of existing marine lantern and foreign LED lantern. In addition, our LED lantern system is easy to repairing something wrong and changing the LED module and other controllers on the sea when they are in accident.
정학근(Hak-Geun Jeong),정봉만(Bong-Man Jung),한수빈(Su-Bin Han),박석인(Suk-In Park),김규덕(Kyu-Deok Kim),유승원(Seong-Won Yu) 한국조명·전기설비학회 2004 한국조명·전기설비학회 학술대회논문집 Vol.2004 No.5월
Concerning Korean energy consumption 20% of the total electrical energy (96% is now exported) is consumed in lighting area. Accordingly, it is one of the most important governmental policies to efficiently utilize electricity due to development and application of high-efficiency lighting equipment. In Korea, widely-built traffic signals employ an incandescent and are of 100W/300 mm and 280,080set/801,932 1amps have been installed and operated by 1999. Of them, 58%(161,181set), 25%(69,655set) and 18%(49,244set) correspond to traffic signals, pedestrian signals and other supplementary signals respectively. It was estimated that electrical energy consumed 28MW instantaneously, 245GWH annually. On the other hand, the LED traffic signal is expected to be a future traffic signal since if traffic signals are replaced by LEDs, energy saving effect of 85% and drop of 75% in maintenance fee will be obtained. In this paper, the performance and characteristics of many LED traffic signals made in Korea are summarized in order to reform Korean standard of LED traffic signals.