• Journal of Korean Institute of Industrial Engineers
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• v.19 no.4
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• pp.97-104
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• 1993

This paper deals with the design problem of a man-on-board(MOB) storage and retrieval warehousing system which is suitable for storing items of small size and light weight. It is assumed that the operator carries out a sequence of retrieving(or storing) operations traveling on a specially designed truck. Considering the operating characteristics of the man-on-board system, an optimal design model is developed in which the investment and maintenance costs of the system are minimized over a time horizon satisfying a set of constructional restrictions. The model is formulated as a nonlinear integer program and a search algorithm is proposed to find an optimum solution.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2019.11a
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• pp.65-67
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• 2019

해양활동의 급속한 확대로 해마다 발생하는 해양사고의 발생이 증가하고 있으며, 사상자 수도 비례적으로 증가하고 있다. 이러한 사고를 줄이기 위해서, 다양한 구조 요청 기기가 개발되고 제시되되어 왔으나 단일화 되지 못한 통신 방법, 구조 요청 과정에 대한 사용자의 인식 부족으로 실질적인 구조 요청 장치의 사용율이 지극히 낮다. 또한 해양의 특수성으로 인하여 제시되어온 기기를 이용하기 위해서는 큰 비용이 소요되었다. 이에 따라 실질적인 구조 가능성을 높이고 해양사고로 인한 사상자를 최소화하기 위해 본 연구의 목적은 실험평가와 경험적 공식을 바탕으로 일반 사용자가 손쉽게 접근 가능한 안드로이드 애플리케이션과 연결된 자동 구조 요청 장치를 개발한 것으로, 본 연구는 현장 및 실험실 시험의 결과에 근거하여, MOB 구출을 위한 자동 구조 요청 장치의 사양을 확정 검증하는 실용화 연구를 수행하였다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.30 no.2
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• pp.217-225
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• 2024

Even after the introduction of Global Maritime Distress and Safety System (GMDSS), many maritime accidents occur. A method of transmitting a rescue signal when a person falls into the water from a ship is currently being researched and developed in various ways, but no products have been developed that use frequencies allocated for maritime mobile service. Accordingly, in this study, we designed and produced a man-over-board (MOB) device by applying Group B AMRD technologies, which were adopted through the latest revision of the International Telecommunication Union (ITU). In addition, a receiver and user interface were built to verify the performance of the transmitter, and we confirmed that it can be used in conjunction with existing electronic charts. This MOB device satisfies the general and technical requirements of Group B AMRD using AIS technology and uses integrated components for miniaturization for easy portability in a maritime environment. We expect that it will achieve excellent AIS communication and be essential in rapid response and safety in emergency scenarios.