• International Journal of Advanced Culture Technology
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• 제10권3호
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• pp.397-403
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• 2022

The world is paying a lot of attention to digital twins to preoccupy future technological competitiveness. Digital twins can be used in various fields such as manufacturing, medical care, and cities. Various market research institutes predict that the market size of digital twins will gradually expand. Korea has also selected digital twin as one of the representative tasks of the Korean version of the New Deal and is promoting related policies. However, a common platform or standard for building digital twins is not enough. Interoperability is a very important characteristic for the purpose of creating new value through interconnection between digital twins rather than independently developing and utilizing digital twins. The Digital Twin Consortium is an international council for the effective development and utilization of digital twins, and is working to solve the problem of digital twin interoperability. The Digital Twin Consortium recently published the 'Digital Twin System Interoperability Framework', and this paper analyzes the digital twin interoperability based on it.

• 한국정보통신학회논문지
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• 제24권10호
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• pp.1398-1401
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• 2020

We present the concept of a Medical Digital Twin (MDT) that can predict and analyze medical diseases using computer simulations and introduce a dynamic virtual body capture system to create it. The MDT is a technology that creates a 3D digital virtual human body by reflecting individual medical and biometric information. The virtual human body is composed of a static virtual human body that reflects an individual's internal and external information and a dynamic virtual human body that reflects his motion. Especially we describe an early version of the dynamic virtual body capture system that enables continuous simulation of musculoskeletal diseases.

• 한국인공지능학회지
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• 제10권2호
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• pp.19-24
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• 2022

Metaverse refers to a world that transcends reality. Metaverse is a compound word of meta (transcendence) and universe (universe). The impact of the corona pandemic has provided an opportunity to rapidly grow the metaverse based on realistic content along with online and non-face-to-face environments. Various content and service platforms reflecting the concepts of metaverse and digital twin are rapidly spreading around the world in line with the pandemic situation. As their needs accelerate in response to the COVID-19 situation, the technology of metaverse and digital twin is attracting attention again as an indispensable condition for business, culture and art, national industry, and public services. In particular, the metaverse requires the balanced development of ecosystem components based on various advanced convergence technologies. In this paper, the concept of metaverse and digital twin, types of platforms, and development status are examined, and trends of key element technologies are investigated and analyzed. As these key element technologies, XR sensory technology, avatar technology, and other XR devices and parts were examined. Through this, we want to clearly pinpoint the direction in which the metaverse will develop through future technologies, services, and follow-up research.

• 한국컴퓨터정보학회논문지
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• 제29권8호
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• pp.113-122
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• 2024

본 논문에서는 디지털 트윈과 같은 실제 도로 환경에서 차량용 애드혹 네트워크(VANET)의 시뮬레이션을 실행하기 위한 기존 시뮬레이터를 면밀한 조사가 수행되었다. 신중한 검토 후에, 오픈소스로 공개되어 있을 뿐만 아니라 효율적인 성능을 가지는 OSM(OpenStreetMap), SUMO(Simulation of Urban MObility), OMNeT++를 결합한 시뮬레이터를 선택되었다. 또한, 이 통합 시뮬레이터를 사용하여 단순한 가상 도로 환경과 실제 도로 환경 모두에서 VANET 시뮬레이션을 수행하였고, 그 결과 두 유형의 환경 간에 VANET 성능에 상당한 차이가 있음을 확인했으며, 안정적인 VANET 운영을 위해 현실적인 도로 및 교통 환경을 고려해야 할 필요가 있음을 확인하였다. 추가적으로, 또 다른 시뮬레이션 결과에서는 차량 밀도가 감소하고 네트워크 토폴로지의 동적 변화가 증가함에 따라 성능 저하가 관찰되는 등 상당한 성능 변동성이 있는 것으로 나타나기도 하였다. 이러한 결과들을 통해, VANET을 실제 환경에서 운용하기 위해서는, 단순한 가상 도로 환경에 의존하지 않아야하며, VANET 연구에서 디지털 트윈 기반 접근 방식을 통해 실제 도로 및 교통 상황을 시뮬레이션해야 할 필요성을 확인할 수 있다.

• Journal of Multimedia Information System
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• 제8권4호
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• pp.295-300
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• 2021

Recent advances in Internet-of-Things and wearable computing have established computationally sufficient infrastructure to remove the barriers of physical locations. The recent COVID-19 pandemic has accelerated the use of remote collaboration, work-from-home, teleconferencing, online education, digital twin, and metaverse enriched with various configurations of augmented reality, virtual reality, mixed reality, and extended reality. Beyond specialized niche wearable applications in the medical and entertainment domains, we aim to identify the underlying characteristics of smartglass-enabled killer applications for everyday use. In this paper, we analyze intermediary roles in remote collaboration consisting of authoritative supervisors, synergetic collaborators, and speculative explorers. We also propose technical components for smartglass-assisted interactive remote collaboration composed of personal tracking, teleconference, and interaction components. More specifically, the application tasks of each intermediary role and objectives of three functional components are defined and elaborated.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2024년도 춘계학술발표대회
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• pp.895-897
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• 2024

본 논문에서는 2024년 4월부터 과학기술정보통신부 재원으로 시작하는 "디지털트윈 융합 의료혁신선도" 사업 내용을 소개한다. 본 사업은 첨단 의료기기 클러스터를 운영 중인 강원도를 중심으로 국내 디지털 의료기기 개발 혁신을 위한 디지털트윈 활용 기반 구축을 목표로 하며, 이를 위해 ▲디지털트윈 통합 인프라 구축(디지털트윈 모델, 디지털트윈 연계 플랫폼), ▲시뮬레이션 검증 인프라 구축, ▲의료기기 디지털트윈 사업화를 세부 과제로 진행할 예정이다.

• 한국환경보건학회지
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• 제50권2호
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• pp.81-82
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• 2024

Urban air mobility (UAM) is emerging as an innovative transportation solution for cities. However, the potential noise impact on urban life must be carefully examined. Continuous exposure to UAM noise, with its unique frequency characteristics and temporal variability, may adversely affect citizens' health by causing sleep disorders, cardiovascular disease, and cognitive impairmenet, particularly in children. NASA has formed a UAM Noise Working Group to study this issue comprehensively. In Korea, the Seoul Metropolitan Government's UAM demonstration project is expected to accelerate related research and development. Scientific analysis, including noise measurement, prediction modeling, and health impact assessment, must be prioritized. Measures to minimize noise should be established based on this evidence, such as optimizing flight modes, developing noise reduction technologies, and establishing new noise management standards. Transparency and social consensus are crucial throughout this process. Expert review and open communication with civil society are necessary to address related concerns. Sharing demonstration project results and providing opportunities to experience UAM noise through digital twin simulations can help address public concerns and build social consensus. Proactively and scientifically tackling noise issues is essential for the sustainable development and successful integration of UAM into daily life.