• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2009.10a
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• pp.206-207
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• 2009

It is estimated that the potential of Chinese market is infinite. The success of Chinese economic reformation is generating the high economic growth in China. China is a rising logistics market as its growing throughput and port expansion but China's railway transportation system is not well-linked with ports. China built TCR(Trans-China Railway) which is across the Chinese territory and connected to as far as Europe. With this mode, it is possible to place more overseas freight and meet more customers' needs. Lian yun gang is a city on the East coast of China where the commencing station of TCR is located. This paper reviews the present conditions of Lianyungang and presents the development direction of the city to become a logistics point.

• Journal of Navigation and Port Research
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• v.47 no.6
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• pp.419-429
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• 2023

The pinnacle of rapidly changing and advancing maritime transportation technology is expected to be the Maritime Autonomous Surface Ship (MASS). The implementation of various services within the MASS is likely to be feasible through the ship-centric network known as the S2X communication system. However, existing communication systems face issues such as service traffic saturation and failure to meet demanded functionalities, necessitating the proactive introduction of additional communication technologies. In this study, the concept of S2X communication for the MASS was redefined, deriving required functionalities and ultimately selecting frequencies suitable for utilization. Candidate frequency groups suitable for the derived communication requirements were identified, and communication frequencies prioritized for the initial application were chosen through expert consensus. It is anticipated that through further research, including experimentation to validate these frequencies, they could be utilized in implementing services for autonomous ship navigation in the future.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2020.11a
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• pp.147-148
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• 2020

자율운항선박 관련 기술에 대하여 국제표준기구(ISO) 선박 및 해양기술 분과(TC8)에서 다양한 표준안이 개발되고 있다. TC8 산하 여러 세부분과에서 스마트 선박과 연계되어 개발되고 있는 표준안들에 대한 분석 및 각 국가별 전략 분석을 바탕으로 국내 간사 기관 대응 전략에 대해 연구한 결과를 소개하고자 한다. 또한 자율운항선박 관련 기술들의 표준화 로드맵 개발 결과를 공유하고자 한다.

• Proceedings of KOSOMES biannual meeting
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• 2018.06a
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• pp.135-135
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• 2018

• 한국항공운항학회:학술대회논문집
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• 2016.05a
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• pp.79-83
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• 2016

1990년부터 14년간 총 65건의 회전익 사고가 발생하여 연 평균 4.6건의 사고가 발생하였다. 항공대국으로 안전한 수준에 이르기 위하여 회전익 항공기 사고의 잠재적 조건 선행 분석자료 및 연구결과 등을 활용하여 회전익 항공기 항공안전대책을 살펴보았다. 소방항공의 경우 인적요인이 사고 발생원인의 57%로 주 요인으로 나타났으며, 국가기관에서도 2000년 이후 사고 중에서 인적요인이 주 요인으로 인적요인이 중요한 개선대상으로 밝혀졌다. 항공안전 전문가들과 인터뷰를 실시하여 회전익 항공기의 잠재 조건에 대해 논의하였다.

• Proceedings of KOSOMES biannual meeting
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• 2017.11a
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• pp.265-265
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• 2017

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.518-520
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• 2013

Saudi Rabigh Port 남측에 Rabigh Jetty #2를 건설하려는 계획에 따라 20,000 DWT급 Tanker 부터 120,000 DWT Tanker의 계류가 가능한 부두 1선석이 건설될 예정이다. 이러한 해외 항만 건설에 대한 선박운항안전성 평가를 위하여 국내 해상교통안전진단 시행지침을 적용하여 수행하였으며 이에 대한 평가 사례를 소개하고자 한다.

• Journal of the Korean Society for Aviation and Aeronautics
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• v.25 no.3
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• pp.68-73
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• 2017

In this study, we design a low-cost test equipment for real-time image observation and transmission/reception distance test using 1m by 1.5m bang-pai kite. The image observation is made by using two servo motors to enable the camera to control the two axis attitude. The image observation equipment is hung on the string of a kite and the test is performed to observe the real time image. The transmission and reception distance test of the wireless RF transceiver module is conducted on the ground and in the air.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.99-100
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• 2022

자율운항 및 무인선 등 새로운 선박의 도입을 위한 기술개발과 함께 선박중심직접통신(M-S2X)의 필요성이 확대되고 있으며, 고용량, 고속의 서비스 구현을 위해 광대역 기반의 선박중심직접통신(Mx-S2X) 기술개발이 진행되고 있다. Mx-S2X의 안정적 서비스 구현을 위해 활용 가능한 주파수를 탐색하고 적정 주파수를 식별하고자 한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2004.04a
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• pp.209-216
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• 2004

In A bridge which connects Mokpo North Harbor and Com Island is going to be constructed until 2009. For the bridges being built in the navigable water area, it is indispensible to carry out vessel traffic safety assessment from the viewpoint of shiphandlers, however, there exist no specific guidelines for the necessary conditions whim the bridge designers can rely on. In this paper, traffic safety assessment procedures for the layout of the bridge is briefly introduced, and the conditions whim should be taken into account at the initial design stage of the bridge is surveyed. For the safety assessment of the bridge design, ship navigation simulations, such as RTS(real time simulation} and FTS(fast time simulation), are carried out, the results of which are statistically analysed to estimate the probability of collision between the ship and the pier of the bridge.