• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.6
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• pp.1229-1238
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• 2023

Digital twin is a technology that creates a virtual space that replicates the real world and manages the real world efficiently by integrating the real and virtual spaces. The digital twin concept for water facilities is to effectively manage water pipes in the real world by implementing them in a virtual space and augmenting them to the interior space of the building. In the proposed method, the Unity 3D game engine is used to implement the application of digital twin technology in the interior of a building. The AR Foundation toolkit based on ARCore is used as the augmented reality technology for our Digital Twin implementation. In digital twin applications, it is essential to match the real and virtual worlds. In the proposed method, 2D image markers are used to match the real and virtual worlds. The Unity shader program is also applied to make the augmented objects visually realistic. The implementation results show that the proposed method is simple but accurate in placing water pipes in real space, and visually effective in representing water pipes on the wall.

• Proceedings of the Korea Contents Association Conference
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• 2008.05a
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• pp.28-32
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• 2008

The displays and the interactive interfaces are important factors to enhance immersion in the VR experience pavilion. In the VR experience pavilion displaying 3D Virtual environment, it is difficult to have multi-display with single viewpoint because of the field of view. Also it costs a lot to construct a large size display. The interaction device between user and VR environment necessary to immersion has used mainly the touchscreens with the restricted display area or the button-based input devices so far. In this paper, we suggest a method for constructing extensible multi-display which are showing VR environment in realtime and a method for interaction using a ZA Sensor which is wireless and guarantees the user's unrestricted movement. The proposed method can make a VR experience pavilion more immersive at less cost.

• Journal of Creative Information Culture
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• v.6 no.3
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• pp.107-128
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• 2020

In this study, the present state and characteristics of VR exhibits currently exhibited in Korea, Hong Kong, and Japan were studied to derive the improvements in the domestic VR exhibits. The previous literatures on VR exhibits at Science Museum were reviewed and online and offline data were collected, analyzed and compared. As the result of the study, VR exhibits at Science Museum in Korea turned out to focus on interest and fun rather than containing scientific content, and exhibits aimed at recreational play and physical activity. The Hong Kong Science Museum VR exhibits are more physically targeted exhibits than the cognitive target exhibits. In addition, at the Japanese Science Museum, there are many exhibits aimed at the physical target exhibits. As the result of classifying VR exhibits into the similar types, it was possible to derive them into four characteristics. The implications for future KOREA VR museum exhibitions were discussed.

• Proceedings of the Korean Institute of Industrial Safety Conference
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• 2003.05a
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• pp.260-263
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• 2003

가상현실(VR； Virtual Reality)시스템은 매우 다양한 분야에 응용되고 있다. 이미 건축, 오락, 교육훈련 등의 분야에 많은 응용사례를 가지고 있다. 산업안전 분야에서도 가상현실을 이용한 안전교육에 대한 가능성이 제기된 바 있다(박재희와 양동주, 2000) 이러한 가상현실 시스템은 기존의 교육 매체인 도해, 모형, 비디오 등에 비해 현실감(presence)이 높고 상호작용성(interactivity)으로 인해 교육효과를 높을 수 있다.(중략)

• Sijohaknonchong
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• v.23
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• pp.241-260
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• 2005

This study is about literature of Gosan Yn Sun-do(孤山 尹善道) and his life that haunted Gang-ho(江湖) natures and political realities repeatedly, Especially, it considers what aspect of cognition he had about two realities, Gang-ho(江湖) and the Imperial Court(朝廷) and how it throws image on his works. And through these, it is examined what his viewpoint of literature is. First of all, through a memorial to the Throne that put him in first political trial, we can know that he was so strict that he didn't compromise with political realities and at the same time, he has a strong political inclination hidden behind his character. These two aspects are reflected on his works as his confrontation will and his agony between the two realities two realities. And through analysing the contents of <金鎖洞記> tt recollect landscapes of 金鎖洞 where Yun Sun-do mostly stayed, it can be found that his total viewpoints of nature is complacency. This complacency including the satisfaction of Gang-ho life and his ethics is intactly reflected on his works. Finally, it is clearly revealed that he tried to embody the principle of nature and ethics in his literary works and his reference to the literary as well.

• The Journal of Korean Philosophical History
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• no.25
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• pp.355-379
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• 2009

According to the estimations in historical books and research achievements which have been produced, Ji-kang was a prominent Taoist in the Wei-Jin dynasty. But some philosophers, on their opinions, regard Ji-kang as a scholar who withdrawal from ordinary life in the real society. In this sense, this article investigates the Ji-kang's perspective of the life in seclusion, in particular, by analysing the letter to Shan Ju-yuan in breaking off relations與山居源絶交書. The purpose of this thesis is to clarify Ji-kang's the ideal of life, by discussing the reaction to the realistic society, the reflection on the confused society and the change into the new ideal of life of Ji-kang. Ji-kang's the ideal of life in the letter to Shan Ju-yuan in breaking off relations與山居源絶交書 have the following characteristics: First, he has pursued to participate in the real society by passive and immediate way, but he realized how difficult his ideal comes true. Thus, he seek the new ideal of life, hermit. Second, according to the view of hermit in the ancient Chinese tradition, his view of hermit implicates the change in his ideological tendency from the hermit of Confucianism and Taoism to the hermit of Taoism. Third, he tried whatever methods that were passive and seclusive to participate in the real society, but he isn't a common idealist. In this way, Ji-kang applied these thought of the social life and the ideal of life to the philosophy of living.

• Proceedings of the Korea Contents Association Conference
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• 2015.05a
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• pp.413-414
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• 2015

본 연구에서는 홀로그램 전용관의 국내 사례를 분석하였다. 홀로그램의 전용관은 홀로그램 콘텐츠를 전문적으로 다루는 전용관이다. 홀로그램은 기술적 발전으로 인해 비즈니스 모델의 측면 이루어지고 있다. 홀로그램 콘텐츠는 그 콘텐츠의 특성으로 인해 홀로그램 전용관이 현실적으로 유일한 유통배급망이다. 이 연구는 홀로그램 전용관의 사례를 분석하여 홀로그램전용관의 적절한 사례를 고찰하는 것을 목표로 하였다.

• Journal of the Korean Society of Marine Environment & Safety
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• v.25 no.6
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• pp.735-742
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• 2019

The need for education and training on engine-part maintenance is rising in order to prevent marine accidents occurring due to a surge in engine-part damages. However, practical training using actual equipment is difficult due to the size and location of the equipment. Therefore, the necessity of developing a training system for marine engines using virtual reality (VR) is intensifying. The purpose of this paper is to develop an optimized system for marine engine education and training using existing VR programs and equipment. To this end, we selected and modeled the marine engine and education target suitable for the class, and developed the system using VR development software. The developed VR education and training system is designed to experience content that is otherwise difficult to train or practice in the curriculum through virtual reality. In fact, fourth grade students from Maritime University were taught using marine engine VR educational equipment, and it confirmed that there was an educational effect on the class. In the future, the introduction of an education and training system using VR in the field of marine engines can improve their maintenance and repairing capacity, and aid in reducing marine accidents.need for education and training on engine part maintenance is increasing to prevent marine accidents.

• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.239-240
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• 2019

최근 가상현실(Virtual Reality)기술이 급격히 발전하고 있다. VR기술의 가장 큰 특징은 몰입감 증대를 통해 가상현실에서 시각적 정보를 구현한다는 것이다. 현재 군사 교육 엔터테인먼트 의료 등 매우 다양한 분야에서 콘텐츠의 개발이 활발하게 이루어지고 있다. 그 중 게임 산업에서 주로 활용도를 높이는 것을 배경으로 하여, 본 논문에서는 VR기술의 발전사로부터 VR구현 장비인 HMD의 기술적 발전방향 연구를 통해서 미래형 HMD디자인의 방향을 고찰하고자 한다. 탐구 이를 기반으로 향호 게임마니아의 니즈에 부합한 HMD 디자인을 제시하고자 한다.

• Proceedings of the Safety Management and Science Conference
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• 2011.04a
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• pp.289-295
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• 2011

본 연구는 안전체험관 특히 재난 재해 체험시설에 방문한 관람객들의 흥미유발과 적극적인 참여를 유도하기 위하여 도입되는 상호작용 체험 시스템의 설계에 대한 것이다. 설계된 안전 체험 시스템은 첫째, 관람객들에게 개별적으로 제공된 단말기의 체험관 내 위치정보와 체험 기기들의 동작감지센서정보를 기반으로 체험 여부 판단 및 체험 점수를 자동으로 산출하는 증강현실 서비스와 둘째, 체험관 내 긴급 호출 등의 안심 서비스를 제공한다. 설계된 시스템의 구현을 통하여 향후 안전테마파크 외에도 체험시설이 구비된 교통 및 과학 전시관, 체감형 게임센터 등에도 충분히 적용가능하다고 사료된다.