• 한국BIM학회 논문집
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• 제11권3호
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• pp.12-21
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• 2021

Existing real estate markets are monopolized because they are capital intensive and have information asymmetry. However, with the advent of the Fourth Industrial Revolution, technology is converging in various industries based on information technology (IT), and the real estate market is also developing a new field called "PropTech". According to this trend, new PropTech technologies are emerging in various real estate services sectors in Korea, but the electronic contract system, which accounts for the largest portion of the real estate industry, is still cited as a complex identification process and long processing time. Therefore, in this paper, we propose an improvement plan for the current electronic contract system through the introduction of blockchain technology, which is drawing attention with the development of PropTech, and explore the possibility of introduction by producing an experimental model of blockchain-applied electronic contract system in a programming language.

• 한국BIM학회 논문집
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• 제12권3호
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• pp.39-51
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• 2022

3D scan technology can utilize real spatial information as it is in virtual space, so it can be usefully used in various fields such as reverse engineering of buildings and process management. Recently, with the development of ICT technology, more precise scan data can be obtained, and scan processing time has also been greatly reduced. In addition, the combination of software and scanning equipment used in 3D scanning technology is very diverse, and results are very different depending on which technology is used. Accordingly, there is a problem that it is difficult for a user who has no experience in 3D scanning technology to determine which technology and equipment should be used to obtain good results. In this study, 3D scan technologies mainly used at home and abroad are investigated, classified, and tested at actual construction sites to suggest considerations and suitable 3D scan methods when using 3D scans in construction sites. The test results were analyzed to evaluate the time it takes to scan, the final quality, and the user's convenience according to each technology method.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.1187-1193
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• 2022

A construction site is a highly complex and constantly changing environment, where hazardous areas are difficult to detect if workers lack sufficient knowledge and awareness. Thus, frequent worker safety training is required. Numerous studies on using virtual reality (VR) for safety training were published. While they demonstrate the potential for improving the skills necessary to avoid accidents in the construction industry, they remain difficult to apply at actual construction sites. VR requires specialized hardware and software, limiting workers' access and restricting workers' participation in training sessions. As a result, this paper proposes multiple platforms for immersive virtual reality safety training (VRMP) based on Industry Foundation Classes (IFC) and web technologies such as immersive web (WebXR). The VRMP is compatible with mobile and desktop devices currently by workers and demonstrates scenario models familiar to workers. Also, it reduces development time by utilizing Building Information Models (BIM). Additionally, The VRMP collects data from workers in a virtual environment to assess each worker's safety level, assisting workers in effectively and comfortably gaining a better understanding and raising their awareness. This paper develops a case study based on the VRPM in order to assess its effectiveness.

• 한국BIM학회 논문집
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• 제14권1호
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• pp.1-10
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• 2024

Virtual reality is one of the key emerging technologies of the 21th century and it has been used in a variety of ways in the fields of architectural research. Virtual reality is presented as an ideal alternative for studying the interaction between space and humans because it provides a realistic spacial experience while allowing experimenters to control environmental variables at a low cost easily. It allowed us to deepen our knowledge of human spatial experience in the built environment. However, existing reviews do not include the following points: 1) previous review research has been focused on using virtual reality technology in construction and engineering, not spatial experience, 2) recently, some review researches started to study the interaction between space and humans in the built environment, however, they do not suggest specific concepts of spatial experience. The present review aims to examine the existing literature about measuring spatial experience using virtual reality in architectural design. The study conducted a systematic qualitative review that analyzes and synthesizes the evolving literature regarding design elements, methodology, and usability. The study concludes with an overall discussion and their potential for providing further directions for future research.

• 한국BIM학회 논문집
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• 제13권4호
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• pp.45-53
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• 2023

The educational benefits and potential of XR as a new medium are well recognized. However, there are still limitations in understanding the specific effects of XR compared to the more widely utilized representation of images on computer monitors. This study therefore aims to demonstrate the differences in effectiveness between the two technologies and to draw implications from a cognitive comparison of three-dimensional objects represented on a flat surface and virtually. The study was conducted a quantitative research method with an experiment involving two independent groups, and the results were tested using regression analysis. The results showed that for low-level, two-dimensional objects, the computer monitor method may be more effective, but above a certain level of complexity, the effectiveness of learning through the monitor tends to decrease rapidly. On the other hand, the group that used extended reality technology showed relatively high comprehension compared to the monitor group even as the complexity increased, and in particular, unlike the monitor group's rapidly decreasing comprehension level, the extended reality technology group showed a trend of decreasing comprehension with the level of complexity, suggesting the potential for compatibility and predictability in the use of technology.

• 한국지리정보학회지
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• 제16권3호
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• pp.180-192
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• 2013

최근 정보통신의 발달은 유비쿼터스, 스마트 환경이라는 새로운 패러다임을 출현시켰으며, USN 기술은 유비쿼터스 환경 구축 및 적용에 적합한 대표적인 기술이다. 본 논문은 USN 기술을 도시에 적용 검증하기 위한 테스트베드 구축과 적용 사례에 대해 연구하였다. 또한 USN 기술의 공공부분 수요 창출을 위하여 지리정보체계(GIS) 및 시설물관리(FM) 등과 융합하여 도로 위험구간모니터링 서비스 구현 방법에 대해 기술하였다. 실제 적용을 위해, USN 장치 제작 및 현장 설치, 관련 규정 조사, 설치 가이드라인 작성, 시스템 구축 및 실시간 연동 테스트 등을 연구하였다. 본 연구 내용을 도로에 적용하면 도로 공공시설물 관리, 도로 사고 실시간 감시 및 주변 환경 데이터 실시간 모니터링 등 많은 응용이 가능하며 향후 시설물 인프라의 BIM과 접목하면 3차원 시설물관리까지 확장이 가능할 것으로 예상된다.

• 한국BIM학회 논문집
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• 제9권2호
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• pp.29-44
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• 2019

This paper is to explore examples of complementary use of digital and physical models. The reason for this is to suggest a method for commercializing architectural design considering high technology. These cases are the practical and educational environment in which design processes based on digital computation technology are performed. Also, in this environment, analog design media (eg, physical models) still being used in the design process using digital computing. Indeed, in this environment, designers are exploiting digital and physical models to address the types of risks that can be discovered when designs are implemented and these risks. By analyzing these cases, we define the roles of digital and physical models to visualize and resolve risks. This paper focuses on one of method as "prototyping", which is used in the field of machinery and is a difficult method to carry out in the conventional design process. In particular, designers look for benefits that encourage designers in utilizing current digital computation technologies (eg, parametric design, simulation, building information models, and digital fabrication). Among the roles of the physical model, roles that can not be replaced by the digital model are explored. It is clear that this case-based study has difficulty in generalizing the design method. However, it helps the designers of today's practical and educational environment to verify and design the actual details of construction and operation when applying and developing unfamiliar materials and methods in the field of architecture.

• 한국정보통신학회논문지
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• 제24권2호
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• pp.304-310
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• 2020

본 연구는 레이저스캐닝과 포토그래메트리 소프트웨어를 이용한 3D모델링과 실제 수목 사이의 재현 특성(수형, 질감, 세부 치수)을 비교분석하여 그 활용성을 밝히는데 있다. 연구 방법은 포토그래메트리(Pix4d)와 3D스캐너(Faro S350)를 이용하여 향나무를 3D모델링으로 재현하였다. 연구 결과 3D스캐닝과 포토그래메트리 모두 높은 재현성을 보였다. 특히 원거리에서 UAVs로 촬영한 포토그래메트리에 비해, 3D스캐닝 기술은 수피와 잎의 재현에 있어 매우 우수한 결과를 보였다. 수목의 세부 치수를 비교한 결과, 실제 수목과 3D스캐닝 사이의 오차는 1.7~2.2%로 스캐닝 결과가 실제 수목보다 크게 나타났으며, 실제 수목과 포토그래메트리 사이의 오차는 0.2~0.5%로 포토그래메트리에 의한 모델링이 실제 수목보다 크게 측정되었다. 본 연구는 수목의 가상 3D모델링 구현특성을 살핌으로써, 향후 BIM을 위한 조경수목 DB 구축, 증강현실 연계 조경 설계 및 경관 분석, 노거수의 보전 등의 활용을 위한 기초 연구로서 의의를 가진다.

• 건축역사연구
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• 제32권6호
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• pp.63-75
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• 2023

Based on my attendance at the CIPA International Symposium(CIPA2023) organized by the International Scientific Committee on Heritage Documentation(ICOMOS), this paper explored research cases applying digital technologies, including BIM, to architectural heritage. The researches presented at this symposium were categorized into specific areas: data acquisition, data management, data sharing&experience. Through this classification, an analysis of research cases in architectural heritage utilizing digital technology was conducted. By categorizing the 43 academic papers from the CIPA2023 based on research themes, trends in the digital architecture field were analyzed, providing insights into future research directions for the digital acquisition, management, sharing, and experiential aspects of Korean architectural heritage. In conclusion, it is deemed necessary to reference and supplement the methodologies, including algorithms, workflows, and approaches developed in each study, to effectively apply methodologies suitable for the characteristics of Korean architectural heritage and its data.

• 한국산학기술학회논문지
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• 제12권9호
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• pp.4210-4215
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• 2011

최근 세계적으로 크게 발전되고 있는 비정형 건축은 디지털 기술에 크게 의존하고 있으며, 이를 실현하기 위한 디지털 기술 또한 빠른 속도로 발전하여 왔다. 본 연구에서는 디지털기술이 적용된 비정형 건축 작품들이 출현하기 시작한 1990년대부터 현재까지의 건축 사례들과 적용된 디지털 기술의 시대적 특징을 살펴보고 디지털 기술의 현 주소와 나아갈 방향을 제시하였다.