• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.3
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• pp.310-315
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• 2014

The domestic maritime environment shows higher frequency of maritime accidents amidst greater traffic volume arising from increasing international seaborne trade and maritime leisure activities. To reduce such maritime accidents, there exist various kinds of safety navigation devices in the ship bridge aimed to mitigate burdens of navigators and support their accurate decision making. Amongst is the AIS considered very important, which is an automatic tracking system to assist understanding of the circumstances in the vicinity by receiving information of other ships and also sending its own; where the information contains errors initially, however, such wrong information is periodically transmitted, accordingly giving rise to hindrance sometimes in decision making by shore operators or ship navigators at sea. This study is to propose the error data and field management algorithm using fuzzy theory toward improving reliability and accuracy in ship related information received from AIS.

• Journal of the Korean Institute of Intelligent Systems
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• v.24 no.1
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• pp.16-21
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• 2014

In recent, the maritime traffic has increased with an increase in international trading volumes and the growing popularity of marine leisure activities. As increasing of maritime traffic, marine accidents happened continually and there are possibilities of accidents at sea. According to the analysis of marine accidents, most accidents occurred by human error of seafarers. To reduce the accidents by human error, the various assistance system for assist seafarers have been proposed. It is required to real-time data management method for applying to real-time system, but most proposed assistance system used off-line data for analysis. In this paper, we aim to build a navigation supporting system for providing safety information to deck officer with data of AIS(Automatic Identification System) and ARPA Radar(Automatic Radar Plotting Aids Radar), and proposed a management algorithm for real-time ship information with blackboard system and verified the validity.

• Journal of Navigation and Port Research
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• v.34 no.8
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• pp.623-628
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• 2010

High speed marine vehicle, such as semi-planing, planing craft have been developed recently. These ships paid attention to the resistance characteristics, especially in high speed region. Model test method is divided to two equipment greatly, first 'Towing tank', second 'C.W.C.'. It is difficult to estimate a resistance characteristics for high speed boat. because these are made for low speed ship. This paper suggests a new model test method and system. This is real sea model test and it's comprised of eight part. Firstly, This method is tested at C.W.C that is possible to using in real sea model tes using low speed boat modelt. And then, Real sea model test and CFD calculation are performed and compared with tow way used high speed boat model. It can be a good way to estimate a performance for high speed boat.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2009.10a
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• pp.241-242
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• 2009

There are marry ships and marine structures and also has marry differences on according to the shape and the interval of hulls to the purpose. the multi-submerged body needs appropriate distance between the hulls because of the optimum hull form. thus, through this paper, the flow characteristics behind the multi-submerged body according os the distance ration between the hulls and various angles of attack was conducted.

• Journal of Navigation and Port Research
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• v.35 no.3
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• pp.205-211
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• 2011

As the increase in maritime traffic and leisure, the marine accident risk has increased in the domestic coast. In this study, the cause and the environment of domestic marine accidents from 1990 to 2009 have been investigated and analyzed by using the statistics issues of Korean Maritime Safety Tribunal. Based on the analysis of most domestic marine accidents such as engine damage, collision, capsizing of small vessels, we propose how to use mobile telecommunication terminals for preventing marine accidents and the best countermeasures.

• Proceedings of the Korea Information Processing Society Conference
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• 2015.10a
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• pp.30-32
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• 2015

요즘 잊을만하면 한번씩 발생하는 다양한 해양 사고를 뉴스에서 접할 수 있다. 이는 해양에서 물적, 인적 이동이 증가하고 있으며 다양한 레저활동까지 해상으로 확장되고 있기 때문이다. 본 논문은 해양 사고 발생시 사후 처리에 활용되는 방식에 대해 제안하고 있다. 기존에는 해양 사고가 발생하면 사고에 대한 분석을 위해 VTS 시스템의 녹화재생 기능을 가장 빈번하게 사용하였다. 기존 VTS 시스템의 녹화재생 방식을 이용한 사고 발생 시각 및 피의 선박 확인은 많은 사간이 소요되어 물적, 인적 자원이 많이 필요한 문제점이 있었다. 특히 선박 기관 손상을 일으키는 어망 훼손 관련 사고와 같이 발생 사각을 정확히 알지 못하는 경우는 사고 발생 시각 분석에 많은 사간과 노력이 요구되었다. 제안하는 방식은 사고 발생 영역 및 특정 시간 조건에 대한 통항량 정보를 미리 추출하는 방식으로 단독 또는 기존의 녹화재생 방식과 함께 사용할 경우 사고 현황을 파악하는데 빠르고 효율적이다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.05a
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• pp.51-52
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• 2019

In the past, waves, which are the main external forces acting on marine and coastal structures, have been dealt with only in terms of safety. Recently, various studies have been conducted to define the characteristics of waves in a specific area in order to respond to the increasing demand for diversified marine activities such as ocean energy development and marine leisure sports. Although the characteristics of waves are specific to the site, the available spectrum model proposed in previous studies are limited. In this study, we analyzed the shape of the ocean wave spectrum by comparing it with the standard spectrum model.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.05a
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• pp.232-234
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• 2012

NMEA2000 international standards was developed for real-time communication among sensors and devices in ships. This paper describes analysis of NMEA2000 network protocols and implementation of a gateway for wireless data services in NMEA2000 networks. For scalability of the network, developed gateway didn't participate in NMEA2000 network but simply relayed data between wireless devices and the network.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.219-221
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• 2012

주5일제의 시행 및 국민소득의 증대, 스포츠 레저 및 여가생활에 관심이 집중되면서 여객선을 이용한 관광이 많이 활성화 되고 있다. 입소문을 통한 홍보 뿐만 아니라 인터넷, 스마트폰등을 통한 정보의 공유 및 대중매체를 통한 홍보로 인하여 구석구석의 명소들이 많이 소개되고 있으며, 이를 위한 여객선 사업이 빠른추세로 증가하고 있다. 이처럼 여객의 수요는 증가하고 있으나 그에 맞는 서비스의 개선, 터미널의 보안시설, 선박 및 접안시설의 노후화 및 수송능력의 부족, 여객선 승무원의 고령화, 급작스런 기상악화시의 대처요령, 여객선사의 안전불감증 등은 많은 문제점을 야기하고 있다. 이 논문에서는 최근 5년간의 우리나라의 여객선 사업의 현황을 분석하고 여객선 사업의 문제점에 관하여 다루어 보도록 하겠다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.163-165
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• 2007

제주 외항의 2단계 항만시설 사업으로 동방파제, 동방파호안, 접안시설, 친수호안, 접속호안 등 2,374m 구간에 대해 방파제 내파 안정성과 반사파 저감을 위한 단면계획을 통해 설계에 반영하였으며 지반 침하 및 지진피해 최소화를 위한 구조물의 사용 및 내구성을 중대시켰으며, 특히 크루저 선박의 본격취항을 대비한 친수공간개념의 도입에 많은 노력을 기울였다. 대상 사업지는 지형적 특성상 복잡한 형태의 고파랑이 작용하므로 방파제의 설계파를 7.3m로 상향조정하였고, 방파제 제간부에 발생하는 충격쇄파압에 대한 안정을 확보하기 위해 소파블록 피복케이슨제를 적용하였다. 제주도가 가지는 국제적 위상에 맞추어 국제미항개발, 레저형 웰빙공간조성 및 제주항이 가지는 자연적 특성을 반영하여 친수 방파제와 호안 및 배후시설의 친환경적인 배려를 최대화 하였다. 해양 생태계 보호를 위하여 해조류 서식지 및 해중림 조성 등 생태복원계획도 수립하였다.