• Journal of the Korean Society of Marine Environment & Safety
• /
• v.17 no.2
• /
• pp.149-154
• /
• 2011

It is very important for ability to be treated to protect and secure the loss of life and property in emergency situation at sea. 80% of maritime casualty are incurred by human factors rather than a mechanical reason, which means that most maritime incident does not come from only one factor by mistake, but multiple potential factors causing a fault and error. Therefore, after research of the leadership effect to the ship, decision making process and behavior characteristics occurred in emergency situation, this paper presents settlement scheme and strategy in order to reduce human error in the ship.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.14 no.1
• /
• pp.77-82
• /
• 2008

Recently, fatigue related to marine accidents was recognized to be very important contribution factor when marine accidents such as collision, aground, fire, etc. were investigated Many studies concerned about fatigue factors related to human error can be found. In this study, the analysis and examination of USCG Fatigue Investigation Program were carried out in order to investigate marine accidents happened in Korean waters. The Fatigue Investigation Program was established on the MAIFA(Marine Accident Investigators Forum in Asia) web site. Finally, the application plan of the program was discussed.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2012.06a
• /
• pp.469-471
• /
• 2012

선박운항을 위해 선원들이 수행하는 인지작업은 다양한 요인에 의해 영향을 받는다. 개인의 능력 뿐만 아니라, 주어진 작업, 항해장비, 해양환경 그리고 조직의 특성/문화와 관련 제 규정 등이 밀접한 연관관계를 갖고 있으며 이러한 요인들이 선원의 인지작업에 영향을 주고 있다. 본 연구는 이러한 복잡한 요인들을 고려하면서, 선원들을 인지작업을 분석할 수 있는 인지작업분석 프레임�p을 개발하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2012.06a
• /
• pp.551-555
• /
• 2012

최근 10년간 해양사고를 분석한 결과 어선은 전체 해양사고의 70퍼센트를 차지하고 있으며, 상선의 경우 충돌 및 좌초 등 운항과실에 의한 발생빈도가 높은 반면에 어선은 조업 중 및 기관구역 사고의 발생빈도가 높다. 또한 해양사고의 총톤수별 분석 결과 총톤수 100톤 미만의 소형선박이 72퍼센트를 차지하였다. 이에 이 글은 다음 7가지를 고려한 어선의 해양사고 방지방안을 제시하고자 한다. 1)충돌사고, 2)어선의 구조 및 설비에 따른 사고, 3) 어선의 전복사고, 4)어선의 기관, 화재, 폭발사고, 5)혼승선박의 비상대응능력, 6)어선의 출항통제기준, 7)동해안의 특성.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2016.05a
• /
• pp.266-268
• /
• 2016

우리나라는 항만운영의 효율성 및 선박 안전운항을 위하여 1993년 포항을 시작으로 전국 18개의 VTS 시스템을 설치 운영하고 있으나, 최근 선박 교통량의 증가와 더불어 해양사고의 증가 원인으로 인적요인에 대해 연구 필요성이 대두되고 있다. 특히 해상교통관제 업무는 고도의 주의력과 예측능력을 요구하므로 이를 저해하는 인적요인을 분석 및 관리할 필요성이 있다. 따라서 본 연구에서는 VTS 관제실의 근무환경에 대해 설문조사를 통한 요구사항 분석과 함께 현장조사를 시행하여 분석함으로서 VTS 관제장비 및 관제석의 최적 배치방안을 제시하여 최상의 해상교통관리 체제 구축에 대하여 고찰해 보았다.

• Journal of the Korea Society for Simulation
• /
• v.22 no.4
• /
• pp.99-107
• /
• 2013

In this study, a conceptual study was performed for the leisure boat simulator used for navigation training. The aim of this work was to secure the basic operational capability of a leisure boat as a simulated driving device for a general novice operator. A leisure boat simulator was designed to support a user more efficiently regarding navigation proficiency and safety training, as well as to minimize the limitation of place and time and it conveniently and cheaply. A cockpit for navigation status display and operational input, 3D visualization graphic device, and parallel display device were designed to give the trainee a maximum sense of reality by applying a motion platform with six degree of freedom, in which disturbance movement such waves, winds, and tide were simulated for the operator. Leisure boat simulator training scenario was developed by analysis of water-related leisure activities act and sea traffic safety act.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.28 no.4
• /
• pp.499-506
• /
• 2022

For autonomous ships to be commercialized and be able to navigate in coastal water, they must be able to detect maritime obstacles. One of the most common obstacles seen in coastal area are the farm buoys. In this study, a maritime object detection system was developed that detects buoys using the YOLO algorithm and visualizes the distance and bearing between buoys and the ship through geometric interpretation of camera images. After training the maritime object detection model with 1,224 pictures of buoys, the precision of the model was 89.0%, the recall was 95.0%, and the F1-score was 92.0%. Camera calibration had been conducted to calculate the distance and bearing of an object away from the camera using the obtained image coordinates and Experiment A and B were designed to verify the performance of the maritime object detection system. As a result of verifying the performance of the maritime object detection system, it can be seen that the maritime object detection system is superior to radar in its short-distance detection capability, so that it can be used as a navigational aid along with the radar.

• Journal of Advanced Marine Engineering and Technology
• /
• v.40 no.4
• /
• pp.282-287
• /
• 2016

Recently in order to protect the ocean environment and to reduce energy consumption, shipbuilders have been developing highly economized ships. This research analyzed the possibility of adopting the onshore absorption refrigerator to offshore ships having a cooling system with refrigerant by using the waiste heat of the engine jacket cooling water instead of compression refrigerators. The results showed that R236fa could be a suitable medium for absorbing the heat of the absorber and condenser in an absorption refrigerator. The cooling system using R236fa achieved a high COP of 0.798, which is 15% and 5% higher than an air cooling system with a cooling tower and a water cooling system with a heat exchanger, respectively. The cooling system with R236fa achieved high efficiency with a 25% reduction in flow rate of LiBr solution and only 15.7% flow rate of cooling medium as compared to the water cooling system. The heating of sea water by the engine jacket water flowing out from the generator can prevent the crystallization of LiBr solution due to the low temperature of sea water.

• Journal of Navigation and Port Research
• /
• v.30 no.10 s.116
• /
• pp.833-837
• /
• 2006

Effective interaction between navigation officer and automated navigation-support system is essential for ship-handling and safe navigation In this study, the functions of the SCMS(Ship Control and Management System) which was developed and implemented to support navigation officer's ship control and to guide safe navigation were described in terms of navigation officer's tasks(i.e., watchkeeping, positioning, and maneuvering), and the interactive relationship between navigation office and the system were analyzed in addition, the effectiveness of the system was evaluated in the scope of training efficiency and subjectively rated safety level.

• Journal of Navigation and Port Research
• /
• v.37 no.5
• /
• pp.519-526
• /
• 2013

In managing shipping business, the concept of seaworthiness of the vessel has developed in accordance with the development of the shipping industry. However, despite of the development of the vessel's seaworthiness, marine accident has continuously occurred at sea. International Maritime Organization(IMO) has paid attention to the research and investigation of Human Error in shipping operations in addition to physical seaworthiness of the vessel. In 1994, IMO adopted the "International Management Code for the Safe Operation of Ships and for Pollution Prevention(ISM code)" of "SOLAS 1974" Annex, to take countermeasure against this human error. In 1999, Korea adopted the 'ISM Code' and then enacted the Maritime Safety Act (previously Maritime Traffic Safety Act). The Maritime Safety Act regulates necessary qualifications of the Human Resources of shipping companies for establishment and implementation of the safety management system. However, there has been a discrepancy between shipowners and ship management companies in interpreting the legislative texts, finally causing confusion. In this paper, I would like to examine the deficiencies in the regulation on the standard of qualifications of the Designated Person under the Maritime Safety Act and thereby suggest any possible improvements in it.