• Journal of the Korean Society of Marine Environment & Safety
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• v.17 no.2
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• pp.143-148
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• 2011

Daesan Harbor is developing under the Industrial Complex or Petrochemistry Development Plan making the port the main hub-port in the West coast. Because of this development. the traffic volume is expected to increase to 9,1.95 incoming vessels by 2020, an increase of 167% compared to 2008 figure. This study thoroughly analyzes and evaluates a systematic and comprehensive use of the fairway in the Daesan Harbor. It establishes a future oriented and safe marine transportation environment upon appropriate examination of the total fairways and sailing assistance facilities.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.05a
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• pp.3-4
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• 2019

본 논문에서는 복잡한 해상교통 환경 하에서도 해양 안전을 도모할 수 있는 강화학습 기반 지능형 선박 항해 에이전트 개발의 사전단계로서 기존의 강화학습 환경을 분석하였다. 강화학습 기반 접근법은 선박 항해 에이전트 스스로가 복잡하고 동적인 해상교통 환경을 이해하고 주어진 목표를 달성할 수 있도록 도와주는데, 이를 위해서는 에이전트 자신을 제외한 모든 사항들이 정의되는 환경을 보다 정확하고 효과적으로 개발하는 것이 매우 중요하다. 실제 해상교통 환경은 학습 환경으로의 모델링 및 에이전트 학습의 난이도가 매우 높은 환경으로 학습환경이 가질 수 있는 여러 속성들을 적절히 설정하여 선박 항해 에이전트의 활용 목적에 맞는 가성비 높은 환경을 구축하는 것이 바람직하다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.234-236
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• 2012

해상교통안전진단제도(이하 제도)의 고도화를 위하여 제도 및 법적 체계의 개선을 실시하였다. 하지만, 사업자를 비롯한 관련기관들은 제도 체계에 대한 인식 부족으로 제도를 규제로 보는 인식이 늘어나게 되었다. 따라서 본 연구에서는 사업자를 비롯한 관련기관들의 제도에 대한 이해도를 높이고, 제도에 능동적인 참여를 유도하기 위하여 제도의 프로세스 분석을 실시하게 되었다. 프로세스 분석은 개정된 해상교통안전진단 시행지침 중 "제2장 안전진단 및 안전진단서", "제3장 안전진단서 제출 면제사업 및 의견서 작성"의 안전진단항목 결정절차, 안전진단서의 제출 및 사전검토 절차, 진단면제의견서 검토절차에 대하여 실시하였다. 이는 제도의 교육자료 및 가이드북의 내용으로서 활용할 예정이다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.28 no.4
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• pp.515-524
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• 2022

To effectively collect, manage, and share the maritime traffic information, it is necessary to identify the technology trends concerning this particular information and analyze its current status and problems. Therefore, this study observes the domestic and foreign technology trends involving maritime traffic information while analyzing and summarizing the current status and problems in collecting, managing, and sharing it. According to the data analysis, the problems in the collecting stage are difficulties in collecting visual information from long-distance radars, CCTVs, and cameras in areas outside the LTE network coverage. Notably, this explains the challenges in detecting smuggling ships entering the territorial waters through the exclusive economic zone (EEZ) in the early stage. The problems in the management stage include difficult reductions and expansions of maritime traffic information caused by the lack of flexibility in storage spaces mostly constructed by the maritime transportation system. Additionally, it is challenging to deal with system failure with system redundancy and backup as a countermeasure. Furthermore, the problems in the sharing stage show that it is difficult to share information with external operating organizations since the internal network is mainly used to share maritime transportation information. If at all through the government cloud via platforms such as LRIT and SASS, it often fails to effectively provide various S/W applications that help use maritime big data. Therefore, it is suggested that collecting equipment such as unmanned aerial vehicles and satellites should be constructed to expand collecting areas in the collecting stage. In the management and sharing stages, the introduction and construction of private clouds are suggested, considering the operational administration and information disclosure of each maritime transportation system. Through these efforts, an enhancement of the expertise and security of clouds is expected.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2015.07a
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• pp.15-17
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• 2015

입출항 선박의 증가와 선박의 대형화로 인하여 두 선박간의 항법규정을 기본으로 하는 해상충돌예방규칙 등 기존의 규정만으로는 연안해역과 항만의 출입항로에서 안전하고 원활한 해상교통을 기대하기 어렵게 되었다. 낚시 유어선과 항내운항선박 등 혼잡요인이 많은 항만의 항로환경을 해상교통공학적인 방법으로 연구하여 출입항 선박들의 혼잡을 감소하고 어선 및 어장의 간섭을 줄일 수 있는 시스템을 마련하여야 한다. 항로와 정박지, 교통안전특정해역, 항행보조시설 등 하드웨어 개선뿐만 아니라 소프트웨어라고 할 수 있는 도선사 승하선 구간의 해도표시, 출입항 선박간의 방향별 집단관리로 등으로 혼잡을 정리하는 개선이 필요하다. 항로의 혼잡과 위해요소의 감소 및 어민 등 항로주변 수역 이해관계의 조율에 기여할 수 있는 이러한 연구가 현실에 부합하기 위해서는 현장에서 항로를 이용하는 전문가의 축적된 경험을 바탕으로 연구함이 효과적이다.

• Proceedings of KOSOMES biannual meeting
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• 2018.06a
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• pp.107-107
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• 2018

• Proceedings of KOSOMES biannual meeting
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• 2018.06a
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• pp.117-117
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• 2018

• Journal of the Korean Society of Marine Environment & Safety
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• v.11 no.2 s.23
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• pp.1-8
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• 2005

In the present maritime traffic conditions of Mokpo harbor, there exist many hazardous factors which may lead to huge accidents including marine oil pollution We analyze marine traffic environments including traffic congestion, natural conditions, maritime traffic accidents in the last 10 years, the fishery status, operation of traffic routes and management of navigational aids and regulations relating ships' routeing both in and out of the country. Consequently, this work is to propose improved marine traffic system in future.

• Proceedings of KOSOMES biannual meeting
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• 2005.05a
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• pp.45-52
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• 2005

In the present maritime traffic conditions of mokpo harbor, there exists many hazardous factors which may lead to huge accidents including marine oil pollution We analyze marine traffic environments including traffic congestion, natural conditions, maritime traffic accidents of the last 10 years, the fishery status, operation of traffic routes and navigational aids of navigational aids and regulations relating ships' routeing both in and out of the country. Consequently, this work is to propose improved marine traffic system in future.

• Journal of the Korean Society of Marine Environment & Safety
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• v.29 no.7
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• pp.887-892
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• 2023

Vessel traffic service(VTS) centers are equipped with RADAR, AIS(Automatic Identification System), weather sensors, and VHF(Very High Frequency). VTS operators use this equipment to observe the movement of ships operating in the VTS area and provide information. The VTS data generated by these various devices is highly valuable for analyzing maritime traffic situation. However, owing to a lack of compatibility between system manufacturers or policy issues, they are often not systematically managed. Therefore, we developed the VTS Bigdata Platform that could efficiently collect, store, and manage control data collected by the VTS, and this paper describes its design and implementation. A microservice architecture was applied to secure operational stability that was one of the important issues in the development of the platform. In addition, the performance of the platform could be improved by dualizing the storage for real-time navigation information. The implemented system was tested using real maritime data to check its performance, identify additional improvements, and consider its feasibility in a real VTS environment.