• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2022.11a
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• pp.236-238
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• 2022

선박의 접/이안 및 협수로 운항은 사고 위험성이 가장 높은 과정 중에 하나로, 많은 이해관계자들의 협업으로 진행된다. 하지만 날로 복잡해져가는 연안 지역에서, 접/이안 및 협수로 운항에서 가장 필요한 정보인 이웃 지형과의 거리 및 주변 선박과의 거리 정보 등을 대부분 목측에 의존하고 있어 이해관계자들 간의 정보 차이 또는 부주의로 인해 사고 위험성이 높아지고 있다. 이러한 문제를 해결하기 위해, 객체 인식 및 센서 융합 기반의 3차원 어라운드 뷰 도선지원 시스템을 개발하고자 하고 총 5년의 개발 계획에서 2차년도까지의 개발 내용을 소개하고자 한다..

• Proceedings of KOSOMES biannual meeting
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• 2003.11a
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• pp.53-57
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• 2003

The last goof if the study is to develop a law cost and a readily available Virtual Reality (VR) based Ship Handling Simulator using Personal Computer. This paper mainly describes procedures and methods to control the dynamic motions if the 3D ship object with maneuvering coefficients in a virtual navigation world The creation if virtual navigation world, the mathematical background q a ship control, and the construction of the system are also discussed.

• Journal of Navigation and Port Research
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• v.40 no.6
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• pp.369-374
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• 2016

Recently, due to the rapid development of smart computing technology, there have been a lot of studies on 3D navigation, and consequently the advanced commercial 3D navigation system and 3D VTS system are on the market. Even the 3D technology is well known and wide spreaded, unfortunately, the secret of code behind is still unleashed. The purpose of this paper is to show the basic methodologies to display ENC features under 3D display environment to meet the requirement of S-52 standards. The OpenGL ES is used to develop 3D ENC Viewer for further use on mobile platforms and web based vessel monitoring system. P articularly, area object triangulation, complex line drawing, polygon pattern filling and symbol drawing by texture mapping are explained in detail. The result of performance test is shown as table for correlation of SENC file size to display speed.

• Journal of the Society of Naval Architects of Korea
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• v.36 no.2
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• pp.121-134
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• 1999

In this paper, a ship calculation program is developed, which prof[nuts hydrostatics and volume calculation intact and damage stability and hull variation. Hull form and compartment geometry are expressed with NURBS curve wire-frame model. Hydrostatics and volume calculation are performed directly with the intersection method between section geometry and 3D planar surface. Equilibrium ship position is calculated with hydrostatic equilibrium equation which is linearized by 1st order Taylor series expansion sequentially. The developed program shows more accurate results and easy uses than the latter.

• Journal of Navigation and Port Research
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• v.35 no.6
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• pp.489-494
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• 2011

Present study introduces an implementation of product data management (PDM) that can be applied to the design of ship propulsion system. The PDM system is developed based on both object oriented software development environment and Open Scene Graph (OSG) library while the system architecture is modeled by the unified modeling language (UML). Suggested PDM system also integrates the modeling & simulation components required to estimate the performance of ship propulsion system as the product information is represented based on the 3-dimensional digital mock-up (DMU). Finally, functions of the implemented PDM system that is integrated with the M&S softwares are illustrated in order to suggest a practical guidance for the efficient design of ship propulsion system.

• Journal of the Society of Naval Architects of Korea
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• v.33 no.4
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• pp.66-74
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• 1996

In this paper, a 3-dimensional ship structural model which includes the longitudinals and stiffeners is constructed. This model can be constructed from the well-defined data structure which represents the ship structural members and their relationship. So the object-oriented concept for the data structure is introduced. The structural analysis model is automatically generated by extracting the necessary information for structural analysis from the ship structural model : Users need to handle the ship structural model only when any design change occurs because the structural analysis model is automatically generated.