• 한국BIM학회 논문집
• /
• 제9권4호
• /
• pp.1-9
• /
• 2019

Visualized information platforms through building information modeling (BIM) such as virtual reality (VR) and augmented reality (AR) improves the efficiency of architectural information exchange. Despite that, less effort has been directed to evaluate the effectiveness of different BIM visualization platforms for architectural design review. This study fills these gaps and compares three BIM visualization tools for reviewing diverse architectural review factors and technology acceptance degree. Three main BIM visualization tools, which are desktop-based, virtual reality-based and augmented reality-based, were employed and different architectural review factors and user's technology acceptance degree was measured. As a result, VR and AR environment showed better visual presentation than desktop environment during design review. In terms of the technology acceptance level, VR and AR environments have received higher ratings compared to desktop environments. The detailed findings provide guidelines for participants and researchers involved in design review process to selectively adopt VR and AR system to various architectural design review components.

• 한국BIM학회 논문집
• /
• 제14권2호
• /
• pp.13-24
• /
• 2024

This research suggests a novel visualization approach utilizing Generative AI to render photorealistic architectural alternatives images in the early design phase. Photorealistic rendering intuitively describes alternatives and facilitates clear communication between stakeholders. Nevertheless, the conventional rendering process, utilizing 3D modelling and rendering engines, demands sophisticate model and processing time. In this context, the paper suggests a rendering approach employing the text-to-image method aimed at generating a broader range of intuitive and relevant reference images. Additionally, it employs an Text-to-Image method focused on producing a diverse array of alternatives reflecting architects' styles when visualizing the exteriors of residential buildings from the mass model images. To achieve this, fine-tuning for architects' styles was conducted using the Low-Rank Adaptation (LoRA) method. This approach, supported by fine-tuned models, allows not only single style-applied alternatives, but also the fusion of two or more styles to generate new alternatives. Using the proposed approach, we generated more than 15,000 meaningful images, with each image taking only about 5 seconds to produce. This demonstrates that the Generative AI-based visualization approach significantly reduces the labour and time required in conventional visualization processes, holding significant potential for transforming abstract ideas into tangible images, even in the early stages of design.

• KIEAE Journal
• /
• 제15권5호
• /
• pp.95-105
• /
• 2015

Purpose: This paper presents a framework development for BIM (Building Information Modeling)-based OOPM (Object-Oriented Physical Modeling) for Building Thermal Simulation. The framework facilitates decision-making in the design process by integrating two object-oriented modeling approaches (BIM and OOPM) and efficiently providing object-based thermal simulation results into the BIM environment. Method: The framework consists of a system interface between BIM and OOPM-based building energy modeling (BEM) and the visualization of simulation results for building designers. The interface enables a BIM models to be translated into OOPM-based BEM automatically and the thermal simulation from the created BEM model immediately. The visualization module enables the simulation results to be presented in BIM for building designers to comprehend the relationships between design decisions and the building performances. For the framework implementation, we utilized the Modelica Buildings Library developed by the Lawrence Berkeley National Laboratory as a thermal simulation solver. We also conducted an experiment to validate the framework simulation results and demonstrate our framework. Result: This paper demonstrates a new methodology to integrate BIM and OOPM-based BEM for building thermal simulation, which enables an automatic translation BIM into OOPM-based BEM with high efficiency and accuracy.

• 지질공학
• /
• 제25권3호
• /
• pp.395-401
• /
• 2015

터널 시공 중 획득되는 굴진면 조사와 계측자료 등은 암판정의 기초자료로 터널 안정성 및 경제성과 밀접한 관련이 있다. 하지만 국내에서는 이러한 자료에 대한 체계적 관리가 부족한 실정이며 자료의 효율적 활용 및 관련 전문가의 수도 부족하다. 따라서 자료의 체계적 관리 및 효율적 활용, 한정된 전문가를 효과적으로 활용할 수 있는 방안 마련이 필요한 실정이다. 이에 본 연구에서는 BIM기반 데이터 시각화를 통해 터널 설계 및 시공관련 정보를 온라인 상에서 효율적으로 제공하기 위한 연구를 수행하였으며 그 결과로 통합 3D 터널모델 생성 모듈과 웹뷰어 모듈을 개발하였다. 개발 기술은 국내 ○○터널 설계 및 시공 자료를 통해 구현성능을 검증하였으며 향후 연구방향 및 시스템 개선방안을 도출하였다.

• 한국BIM학회 논문집
• /
• 제12권4호
• /
• pp.1-18
• /
• 2022

New Fabrication Facility (FAB) construction is performed with Building Information Modeling (BIM) based design. The BIM design data keep updated during the FAB construction. To improve fast-track construction management, a Fabrication Facility Augmented Reality (FABAR) was developed. This study introduces a FABAR system development process and shows performance evaluation results of the FABAR prototype system. The FABAR is implemented with three major modules: Augmented Reality (AR) visualization unit (Room-box) to transfer big BIM data to AR data, AR registration and tracking unit to match AR with real scape and to keep AR coordination in real, and AR data management unit to enhance usability. The prototype performance results were as follows: visualization of design BIM data via AR within 24 hours, precise AR registration and tracking registration, and appropriate usability to support FAB construction management at site. The results indicate that the FABAR is applicable for FAB construction management. Especially, the BIM data transformation method using Room-box in this study signifies a new construction management approach using fluctuating BIM design data in the fast track construction condition.

• 한국BIM학회 논문집
• /
• 제4권1호
• /
• pp.8-12
• /
• 2014

This research and project is going on the Korean government. The objective of project is that developing total energy management solution. So, this paper is going to introduce a proposal that energy total operating system development using spatial information visualization and energy monitoring. It could efficiently operate the building energy wirelessly controling cooling/heating, lighting, air-conditioning and geothermal system. The metering data is collected to total database. The data is linked to BAS gateway, which is connected the device by the standard protocol.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2022년도 봄 학술논문 발표대회
• /
• pp.73-74
• /
• 2022

Concrete structures occupy the largest proportion of modern infrastructure, and concrete structures often have cracking problems. Existing concrete crack diagnosis methods have limitations in crack evaluation because they rely on expert visual inspection. Therefore, in this study, we design a deep learning model that detects, visualizes, and outputs cracks on the surface of RC structures based on image data by using a CNN (Convolution Neural Networks) model that can process two- and three-dimensional data such as video and image data. do. An experimental study was conducted on an algorithm to automatically detect concrete cracks and visualize them using a CNN model. For the three deep learning models used for algorithm learning in this study, the concrete crack prediction accuracy satisfies 90%, and in particular, the 'InceptionV3'-based CNN model showed the highest accuracy. In the case of the crack detection visualization model, it showed high crack detection prediction accuracy of more than 95% on average for data with crack width of 0.2 mm or more.

• 한국콘텐츠학회논문지
• /
• 제11권7호
• /
• pp.497-507
• /
• 2011

본 논문은 건축자재들을 컴포넌트와 패턴으로 조립하여 패턴 단위로 건축설계가 효율적으로 이루어질 수 있도록 하는 스틸하우스 설계 인터페이스를 개발한다. 또한 이 기술을 이용하여 건축의 공정에 설계, 분석, 변경정보, 조립 등의 건축설계를 시뮬레이션을 통하여 건축의 손쉬운 변경과 비용을 효과적으로 절감하기 위한 기술을 지원하는 조립 건축설계 시스템 개발을 목적으로 한다. 특히 설계자와 사용자도 패턴을 이용하여 쉽게 건축물을 변경시킬 수 있으며 변경에 따라 필요한 자재들의 패턴 정보와 변경된 건축물의 설계도가 자동 생성된다. 또한 개인의 숙련도나 지식 가시화를 통해 발생할 수 있는 지식검색 역시 구현 목표로 한다.

• 한국콘텐츠학회논문지
• /
• 제10권8호
• /
• pp.66-72
• /
• 2010

본 연구는 건축자재들을 컴포넌트로 구성하고 컴포넌트들을 패턴으로 조립하여 패턴 단위로 건축설계가 효율적으로 이루어질 수 있도록 하는 3D 가상건축 기술을 개발한다. 또한 이 기술을 이용하여 건축의 공정에 설계, 분석, 변경정보, 조립 등의 건축설계를 시뮬레이션을 통하여 건축의 손쉬운 변경과 비용을 효과적으로 절감하기 위한 기술을 지원하는 조립 건축설계 시스템 개발을 목적으로 한다. 특히 설계자와 사용자도 패턴을 이용하여 쉽게 건축물을 변경시킬 수 있으며 변경에 따라 필요한 자재들의 패턴 정보와 변경된 건축물의 설계도가 자동 생성된다. 또한 개인의 숙련도나 지식 가시화를 통해 발생할 수 있는 지식검색 역시 구현 목표로 한다.

• 한국디지털건축인테리어학회논문집
• /
• 제13권3호
• /
• pp.33-40
• /
• 2013

The purpose of this study is to propose an curriculum for architectural studio in university to implement BIM process, through the analysis of the advantages of the BIM tool. The limitation of this study was to analyze the case study of only half year a single university. University education in the design process, the design that can be used in applying BIM content should be universal, university education considering the special working conditions, excessive BIM-based application can be difficult. Therefore, a systematic and reliable design that can be applied to education applies BIM design process is necessary to establish. University education applying BIM design review and design proposal the various 3D visualization can be used effectively to determine. In addition, the planned representation for thinking about and drawing 3D model building, architectural space can be used for visualization, and other subjects in conjunction with structural analysis, environmental analysis, facility layout, etc. can be used.