• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.05a
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• pp.176-177
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• 2023

최근 해양자원 및 산업개발, 해양관광산업 등의 발달로 바다에 대한 관심은 더욱 증가하고 있으며 국가 간 경쟁도 나날이 치열해지고 있어, 바다를 무대로 활동하는 해양경찰의 중요성은 더욱 커지고 있다. 해양경찰의 가장 중요한 임무는 해양에서 국민의 소중한 생명과 재산을 보호하는 것이다. 이를 위해서는 경비함정을 안전하게 운항하는 것이 가장 중요하다. 경비함정을 안전하게 운항하기 위해서는 선박운용에 필수인 항해기초 항해학, 연안항법, 전파 및 레이다 항법, 항해계기, 해상기상, CORLEG(항법), 함정운용, 함정조종론, 해사일반(함정의 감항성), 해사영어(SMCP), VTS 교육과 SHS를 활용한 함정운항 심화 교육인 선위측정(GPS 및 레이다이용), CBT 실습(항해장비 운용법, 조함 명령법), 시뮬레이션 MOCK-UP 실습(상황별 항해실습, 자기주도실습, 함정운용술 고도화)과 더불어 함정의 비상상황에 대비한 교육 및 다양하고 심도 있는 항해 전문화 교육이 필요하다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.23 no.7
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• pp.775-782
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• 2017

The position of existing patrol ships has been decided according to subjective judgments, not purely by any reasonable or scientific criteria, because of a lack of access to marine accident positions. In this study, the optimal location of patrol ships is quantitatively determined based on historical marine accident data. The study area used included the coastal sea of Pohang in South Korea. In this study, a k-means clustering algorithm was used to derive the location of patrol ships, and then a Voronoi diagram was used to divide the region around each patrol ship. As a result, the average navigation distance for patrol ships was improved by 4.4 nautical miles, and the average arrival time was improved by 13.2 minutes per marine accident. Moreover, if the locations of patrol ships need to be changed flexibly, it will be possible to optimally arrange limited resources using the technique developed in this study to ensure a fast rescue.

• Journal of the Korean Society of Marine Environment & Safety
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• v.24 no.2
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• pp.282-287
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• 2018

Due to limitations in responding to oil spill incidents that are urgent or that cover a wide area with only oil spill response vessels, Korea Coast Guard (KCG) patrol vessels are utilized. In this study, we have developed an oil sweep system suitable for small patrol vessels. The equipment consists of three components - fixed support, poles, and slide fixers - and can be fastened with a toggle pin to a fall prevention bar on small patrol vessels without welding or additional efforts for installation. The respective weights of each component - fixed support, poles (2 pcs), and slide fixers (4 pcs) - are approximately 9.2 kg, 6.5 kg, and 3.5 kg. The 3 m-pole, which is rotatable 180 degrees horizontally, is folded deckward when replacing oil absorbents. As the development of this equipment has improved the method of deploying and retrieving oil absorbents on KCG small patrol vessels, we expect that more efficient oil spill cleanup will be possible.

• Proceedings of KOSOMES biannual meeting
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• 2017.04a
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• pp.89-89
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• 2017

해양경찰 소형 경비정에 주로 장착되었던 물분사(water jet type) propeller가 중대형 경비함으로 점차 확대되고 있으며, 축 형식은 2~4축, 유동을 제어하는 bucket 유형도 DRB, CSU(SRB) 방식으로 나뉘어져 있다. 그러나, W/Jet 추진기 고유의 운동 특성이 반영된 조함법의 연구가 부족한 편이다. 여기서는 함정에 장착된 W/Jet 유형별 SHS를 통하여 직접 구현해 보고, SHS 구현이 현실적으로 어려운 함정은 해양경찰 함정장들의 면담을 통하여 습득한 것을 이론적으로 구현 제시하여, 함정 조함시 지식적인 인적오류를 최소화하여 W/jet 추진기가 장착된 함정 승조원의 조함 능력 향상 및 안전운항에 기여하고자 한다.

• Journal of the military operations research society of Korea
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• v.36 no.2
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• pp.25-37
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• 2010

This paper deals with achieving the optimal quantity of required PKMs to cover the coastal areas divided into the proper size of sectors, and then using Set Cover Model, Clustered Model, etc. It is optimized via "Requirement Optimization Process" to allocate PKMs reasonably which is considered as conducting mission deployment sectors. This "Hybrid Proper Requirement Model" accommodating the optimization process is introduced and testified by examining a requirement problem.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.06a
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• pp.44-46
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• 2013

Since vessel traffic service system was introduced domestically in 1993, the incidence of vessel collision and grounding accidents has been diminished dramatically. However, recently the non-fishing boat incidents frequently occur outside boundary of vessel traffic control zone. Owing to this fact, before expanding and establishing 11 VTS centers all over the country by 2023, Korea Coast Guard has a plan to launch the nation's first researches on Mobile VTS Operation System utilizing Korea Coast Guard's patrol ships so as to devise practical countermeasures about those incidents.

• Journal of Navigation and Port Research
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• v.41 no.6
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• pp.373-380
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• 2017

Operational errors caused by human factors, which is the major cause of marine accidents, include lack of knowledge, misunderstanding knowledge, and inadequate procedures. Recently, the type of propulsion mounted on KCG cutters has been diversified. In particular, the water jet propulsion unit, which was mainly installed in small boats, have been gradually expanded to medium and large size Coast Guard cutters, reaching 50% of the total. Axes types are divided into 2 to 4, and the bucket types are divided into Double Reverse Bucket(DRB) and Single Reverse Bucket(SRB); in these, the backward and steering control methods are completely different. Diversification of these operating systems can increase factors causing human error by the ships' operators. However, there is a lack of research on the maneuvering methods, considering the inherent active characteristics of each type of water jet. In this paper, we analyze the sideway method suitable for the condition of Coast Guard Exclusive wharf without assistance, based on the astern performance of each type. Then, a ship handling simulator was used for the experiment; they compared and verified through interviews of captains.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.10a
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• pp.404-406
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• 2012

계선표지는 특수목적항로표지의 하나로 해양경찰에서는 "연안해역 거점감시를 위하여 해양경찰청 소속의 경비함정의 계선을 목적으로 설치하는 부표"라고 정의한다. 현재 덕적도 외 33기의 계류부표를 해양경찰에서 운영하고 있으며, 150ton 이하의 소형해경함정을 계류시키는데 사용하고 있다. 그러나 부표의 유지관리가 어려워 관리자에게 감시업무 이외에 과중한 업무가 부가되고, 부표의 철탑구조물의 형태로 인해 작업 중 안전사고가 많이 발생하고 있다. 또한 표체가 철재로 이루어져 있어 해경함정 계류시 부표 및 함정의 충돌에 의한 손상이 발생하여 유실되거나 침몰하는 경우도 있다. 이 논문에서는 현재 해양경찰 계류부표를 기준으로 하여 현재 소형선박을 위한 계류부표 분석 및 최적화된 계류부표 설계하고자 한다. 국외 특수용도 사용부표 사례 분석 및 현재 관리자의 해양경찰의 의견을 수렴을 통해 현재 계류부표의 운영현황 및 관리 실태를 분석하고 최적화된 새로운 계류부표의 기본설계를 제시한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.22 no.6
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• pp.558-565
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• 2021

The Republic of Korea Navy has deployed naval fleets in the East, West, and South seas to effectively respond to threats from North Korea and its neighbors. However, it is difficult to allocate proper missions due to high uncertainties, such as the year of introduction for the ship, the number of mission days completed, arms capabilities, crew shift times, and the failure rate of the ship. For this reason, there is an increasing proportion of expenses, or mission alerts with high fatigue in the number of workers and traps. In this paper, we present a simulation model that can optimize the assignment of naval vessels' missions by using a continuous time absorbing Markov chain that is easy to model and that can analyze complex phenomena with varying event rates over time. A numerical analysis model allows us to determine the optimal mission durations and warship quantities to maintain the target operating rates, and we find that allocating optimal warships for each mission reduces unnecessary alerts and reduces crew fatigue and failures. This model is significant in that it can be expanded to various fields, not only for assignment of duties but also for calculation of appropriate requirements and for inventory analysis.

• Journal of Navigation and Port Research
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• v.27 no.1
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• pp.15-30
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• 2003

The shipboard working environment of coastal patrol ship is very inferior to the ground working environment and it cause the avoidance of shipboard working and the aging of crew. Especially the noise in ship cause on occupational shipboard working hardness of hearing. Hence to reduce the shipboard working fatigue is necessary by the security of the comfortable shipboard working environment and residence environment. in this paper, firstly we evaluate the shipboard working by suing the measurement results of the evaluation results of the shipboard working environment.