• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 공동학술발표회
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• pp.247-247
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• 2017

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 추계학술발표회
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• pp.188-188
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• 2017

• 해양환경안전학회:학술대회논문집
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• 해양환경안전학회 2017년도 추계학술발표회
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• pp.82-82
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• 2017

• 한국항해항만학회지
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• 제26권1호
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• pp.78-84
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• 2002

이 본문은 선박중개시스템으로써 분산객체기술을 이용한 CORBA환경하에서 설계되고 구현되었다. 최근 각광 받고 있는 웹에서의 전자상거래 시스템이 방대해 짐에 따라 호스트 중심의 중앙 집중식 방식이 한계를 가지게 되었다. 또한 시스템의 성능 향상도 크게 요구되어졌으며, 이러한 문제들을 해결하기 위해 이종 시스템간에 프로그램을 분산시켜 부하를 줄임으로써 시스템의 성능 저하와 네트워크 병목형상을 해결하고 있다. 본 연구는 에이전트 통신언어(ACL)를 이용하여 분산된 데이터베이스에fi의 에이전트 기반 모형을 제시한다. 또한 분산된 서로 다른 운영체제, 분산된 이종의 데이터베이스에서의 정보 공유와 교환이 가능한 CORBA를 이용한 지능형 선박검색 에이전트의 모형을 구현한다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2022년도 춘계학술대회
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• pp.333-335
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• 2022

4차 산업혁명에 따른 변화는 COVID-19 Pandemic으로 더욱 가속화되고 있다. 이에 사회와 산업의 다양한 분야에서 급격한 변화가 예상된다. 해운물류 산업 역시 환경 및 기술 변화에 따라 스마트화가 시급한 상황이다. 하지만 우리나라의 경우 선진국과 비교하여 해운물류기술의 스마트화가 미진한 상황이다. 많은 관련 주체들과 복잡한 업무처리를 스마트화하기 위해서는 최신 기술들을 활용하여 원활한 의사소통과 가시적인 확인이 중요하다. 스마트 해운물류에서 이러한 가시화와 커뮤니케이션이 더 중요하게 부각된다. 본 연구에서는 자율운항선박과 스마트 항만 간의 통합 커뮤니케이션을 위한 도구를 제시하고자 한다. 특히, 다양한 주체가 참여하여 복잡한 업무처리를 하게 되는 자율운항선박의 접안 및 상·하역 작업의 요구 사항들을 충족시키는 디지털 트윈 기반의 커뮤니케이션 도구 개발에 대해 연구를 하였다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.699-703
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• 2004

The autopilot system targets decreasing labor, working environment, service safety security and elevation of service efficiency. Ultimate purpose is minimizing number of crew for guarantee economical efficiency of shipping service. Recently, being achieving research about Course Keeping Control, Track Keeping Control, Roll-Rudder Stabilization, Dynamic ship Positioning and Automatic Mooring Control etc. which compensate nonlinear characteristic using optimizing control technique. And application research is progressing using real ship on actual field. Relation of Rudder angle which adjusted by Steering Machine and ship-heading angle are non-linear. And, Load Condition of ship acts as non-linear element that influence to Parameter of ship. Also, because the speed of a current and direction of waves, velocity and quantity of wind etc. that id disturbance act in non-linear form, become factor who make service of shipping painfully. Therefore, service system of shipping requires robust control algorithm that can overcome nonlinearity. In this paper, Using GA algorithm,design autopilot system of ship that could overcome the non-linear factor of ship and disturbance and examined result through simulation.

• 한국항해항만학회지
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• 제35권7호
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• pp.581-588
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• 2011

Globalization of production, changing technology in ocean shipping sector, shifting bargaining power from port service provider to port users, changing distribution patterns of the containerization and new implementation for the environment and safety concerns introduced new ways of administration in port sector. In these days, port industries cannot survive alone. Port operation and management has to be proactive to cooperate and integrate with other port operators or other industries. In the 21st century, cooperation in maritime sector is more common than that in the past with several different reasons in a mixture of forms of cooperation. Cooperation among port authorities, port operators, shipping line, inland transport service providers and/or related organizations themselves becomes to exist to overcome the challenges and development of the global transport chain. This paper investigates the concept of port cooperation and the case analysis of the cooperation in the port industry.

• 한국해양공학회지
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• 제17권6호
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• pp.96-100
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• 2003

For moving cargo between the North Pacific region and Northern European ports, the Northern Sea Route, along Russia's coastline, is 35-60％ shorter than the traditionally used routes through the Suez or Panama Canals. in addition to its shorter distance, there exist extensive ports und shipping infrastructure, and the potential for developing new markets in Russia and other northern countries including Korea and Japan. These incentives attracted considerable attention from the international shipping and shipbuilding industries and have formed a cooperative international research program, called as the International Northern Sea Route Programme (INSROP) This paper is a general compilation of the historical usage, recent trade developments, the physical environment, and the practical considerations that may shape future operational mode of shipping in the NSR based on results from INSROP reports. This study focuses mainly on an operation of commercial icebreaking cargo vessels that may be utilized along the NSR.

• 한국항해항만학회지
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• 제32권7호
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• pp.553-559
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• 2008

The lorry based transportation system in korea has many problems such as high domestic logistic cost, environment pollution and road damage etc. Hereupon, the necessity of improvement for national logistics system has been proposed continuously. Therefore we carried out this research through AHP(Analytic Hierarchy Process) to measure relative importance between effect factors and constraint factors and examined the possibility of Modal Shift from lorry transportation to coastal transportation. As the results of this research, the relative priority on modal shift policy enforcement (0.556) is higher than that of maintenance of the present transportation system(0.444).

• 한국소음진동공학회:학술대회논문집
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• 한국소음진동공학회 2000년도 춘계학술대회논문집
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• pp.1240-1245
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• 2000

A Spacecraft container must afford the satellite a relatively benign thermal, vibration, and particle environment that is oblivious to the extreme temperatures, sand, dust, vibrations and shocks that can accompany the transportation. This paper discusses the extensive yet simple vibration test and validation of one such spacecraft container used for KOMPSA T-1 spacecraft, which was transported from KARl Taejon, Korea to Vandenberg Air Force Base(VAFB) on September 30 and launched successfully December 21, 1999. The test results are presented and compared with the design requirement. The dynamic characteristics of shipping container, such as natural frequencies, satisfied the design requirement and showed that shipping container was well. designed and manufactured. This kind of know-how will help to develop the next generation of Korean space program, such as KOMPSAT-2 and Korean tele-communication satellite.