• 해양환경안전학회지
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• 제17권3호
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• pp.235-243
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• 2011

경인 아라뱃길 사업과 관련된 환경오염문제 및 경제적 실효성에 대한 논란은 접어두고 2011년 10월에 개통을 앞둔 현 상황에서는 수로가 완성되어 개통된 이후 선박 통항 안전성 확보를 통하여 사고의 발생을 방지함으로써 인명, 재산 및 환경을 적극적으로 보호하는데 초점이 맞추어져야 할 시점이다. 이에 이 논문에서는 경인 아라뱃길이 우리나라 최초의 내륙수로가 된다는 점을 고려하여 수로의 운영 및 선박 통항 안전성 확보를 위하여 운항 및 관리규칙의 제정에 대해 검토해 보고 안을 제시하고자 한다. 이 안은 세계 주요 운하의 통항 규칙 검토 및 경인 아라뱃길의 특성을 고려하여 총 7개장으로 분류하여 일반규정, 선박통항에 관한 일반규정, 선박운항규칙, 제한사항, 비상대응사항, 통항 제한사항및 벌칙규정 등으로 구성하여 각각의 규정을 개관하고 있다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2015년도 춘계학술대회
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• pp.259-261
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• 2015

선박조종 시뮬레이션 모델은 항해사에게 요구되는 항해장비 숙달, 충돌위험 회피, 비상상황 대응 등의 해기능력 향상에 많은 기여를 하고 있으나, 인적오류에 의한 사고는 여전히 발생하고 있다. 여기서는 기존의 선박조종 시뮬레이터를 활용하여 여러 단계의 조종능력을 보유하고 있는 항해자를 대상으로 국제항공 및 해상수색구조편람(IAMSAR manual) 제3권 선내비상사태(On board Emergencies) 익수자(Person Overboard) 편에 구성되어 있는 표준 선박조종법을 검토하였다. 그리고 교육훈련 시 나타나는 항해자의 인적오류 사항을 모니터링하여 인지 시뮬레이션 모델 구축을 위한 기초자료를 검토하였다.

• 대한조선학회논문집
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• 제60권4호
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• pp.256-265
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• 2023

This paper describes the results of the development of the submarine Free Running Model (FRM). First, the goal of development was set based on the test conditions and the test environment, and the system was obtained accordingly. The target submarine, Joubert BB2 submarine, was selected with a scale of 18.35 in accordance with the development goal. In order to conduct a submarine FRM test underwater, where communication is impossible, the FRM must operate at least semi-autonomously. For this purpose, an Extended Kalman Filter (EKF) based underwater integrated navigation system and control system using a sailplane and an X-shaped sternplane were designed respectively. In addition, a ballast system was designed to enable the model to float to the water surface in case of an emergency. To verify its propulsion, navigation, and control performance, the FRM tests were conducted in both indoor and outdoor basins. As a result, the relationship between propeller RPM and vehicle speed was derived, and it was confirmed that the navigation and control performance met the target value.

• 한국항만학회지
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• 제8권1호
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• pp.65-74
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• 1994

There are some turn maneuvers, such as hard Round Turn, Turning Short Round, Williamson Turn and Single Turn, of effectively returning a ship back close to the original track in case of emergency situations of man-overboard and intentional delay of port entrance time, and so forth. But the author developed the new turn maneuvers of Double 30 (woo) Turn originally by means of simulation experiments of Full-Mission Shiphandling Simulator. The conclusions of this study are as follows: 1) By comparison of existing Williamson Turn and Turning Short Round this Double 30(woo) Turn is all-weather multipurpose turn maneuvers in some respects, 2) According to simulation experiments this Double 30 (woo) Turn saved approximately 20-35% of total turning time to the original position and reduced maximum advances by 8-10% approximately in comparison to that of Williamson Turn, 3) Except for emergency men-overboard the Reverse Williamson Turn was proposed as a new reverse maneuver of returning a ship back to the original track.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2006년도 International Symposium on GPS/GNSS Vol.1
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• pp.241-246
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• 2006

The paper presents the preparations work and experiences gained from realtime GPS car monitoring during the European Rally Championships organized on 10-12 June 2005 in Poland. The developed system is based on GPS and GSM/GPRS technology. Distribution and teletransmission of data are possible using different GSM operators in Poland, which makes the system fully independent. The system's server collects data from rally cars, processing and send data through VPN connections to the SQL server located in main control room. Data can be collected in real time via Internet or GPRS. Some information on GSM/GPRS range during rally championships are also presented in the paper. The study covered many trials and tests of different software and various configurations of the GPRS modems before finally the system started to work. Information coming from 10 Rally Cars were collected to the SQL Server continuously in one second interval. In real time mode these all data were displayed simultaneously in the rally main control room and in the rally press conference room. Paper describes also adopted emergency procedures and remote reconfiguration of GPS/GPRS boxes inside rally cars made during championships. Some problems and method of practical solutions are presented to avoid active jamming dangerous for a driver and his pilot, having system of communication intercoms jammed by teletransmission of GPRS 900/1800 MHz. In cooperation with rally teams special GPS/GPRS safety boxes were designed and made. Monitoring of all 7 rally stages with GPS receivers and method of calibrations of the maps were presented. GSM signal coverage was also checked in all stages. All data transmitted from rally cars were recorded in the computer. Some of our GPS cars had accidents and dispite them information were continuously sent to server. There is possibility to show in post mission mode the position of chosen cars in our rally application. Some information of best rally cars are presented also in the paper.

• 한국항행학회논문지
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• 제15권5호
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• pp.879-886
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• 2011

공공경보시스템은 재난, 경고 상황을 감지하여 사업자에게 경고를 제공하는 경고 정보 제공자 및 경고 정보를 단말에게 직접 전달하는 이동통신 사업자에 의해 제공되는 일반적 경고 메시지 통지(Warning Notification) 시스템이다. 본 논문에서는 주민의 생명과 재산을 보호하기 위한 재난경보시스템을 ISO TC223의 WG3의 공공경보(Public Warning) 모델, 우리나라의 재난 예 경보 시스템, 재난 예 경보 시스템의 역할, 컬러코드 경보(Colour-coded Alert) 등에 대하여 검토하도록 한다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2012년도 춘계학술대회
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• pp.50-51
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• 2012

해안 및 도서지역의 전력수요를 파력, 조력, 조류, 해상풍력과 같은 해양발전 시스템을 이용하는 혁신적인 고효율 하이브리드 알고리즘과 기본 모듈을 개발하기 위하여 2011년 8월부터 2012년 2월까지 남해안 도서지역 중 1개 섬을 선택하여 섬에 거주하고 있는 주민의 가구에 전력량 측정기를 설치하여 소비전력량 패턴을 확인하였다.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2000년도 추계학술대회논문집
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• pp.227-234
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• 2000

AGV is very proper equipment for Port Automation. AGV must have Obstacle Detection System(ODS) for port automation. Obstacle Detection System must have some functions. It must be able to classify some specified object from background data. And it must be able to track classified objects. Finally, ODS must determine its next action for safe cruise whether it must do emergency stop or it must speed down or it must change its track. For these functions, ODS can have many different structures. In this paper, we will propose one structure among some possible ones. Our ODS has been being developed using proposed structure since last year. In this paper, we will introduce our system which is under construction.

• 전기학회논문지
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• 제56권7호
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• pp.1302-1308
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• 2007

In this paper, a real-time collision avoidance algorithm is proposed for experimental Autonomous Vehicle(XAV). To ensure real-time implementation, a virtual potential field is calculated in one dimensional space. The attractive force is generated by the steering command either transmitted in the remote control station or calculated in the Autonomous Navigation System(ANS) of the XAV. The repulsive force is generated by obstacle information obtained from Laser Range Finder(LRF) mounted on the XAV. Using these attractive and repulsive forces, modified steering, velocity and emergency stop commands are created to avoid obstacles and follow a planned path. The suggested algorithm is inserted as one component in the XAV system. Through various real experiments and technical demonstration using the XAV, the usefulness and practicality of the proposed algorithm are verified.

• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2011년도 추계학술대회
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• pp.136-137
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• 2011

해안 및 도서지역의 전력수요를 파력, 조력, 조류, 해상풍력과 같은 해양발전 시스템을 이용하는 혁신적인 고효율 하이브리드 알고리즘과 기본 모듈을 개발하기 위하여 2011년 하절기 남해안 도서지역 중 1개 섬을 선택하여 섬에 거주하고 있는 주민의 가구에 전력량 측정기를 설치하여 소비전력량 패턴을 확인하였다.