• Title/Summary/Keyword: 건물정보 모델링

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A Study on Utilizing BIM Level of Architectural Design Information for School Facilities (BIM을 활용한 학교시설 설계정보단계 설정에 관한 연구)

  • Kim, Myoung-Keun;Koh, In-Lyong;Kim, Hyung-Un
    • Journal of The Korean Digital Architecture Interior Association
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    • v.12 no.4
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    • pp.13-20
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    • 2012
  • The recent advances in digital technology allow the use of BIM for integratively managing various information pertaining to an architectural structure. This can be the suitable tool for effectively utilizing the various requests of both the users and the administrators from the planning phase. In particular, planning and constructing a school facility can be challenging because it is an important learning facility where the students are required follow a set schedule. Accommodating to the various needs and requests of the users and the other related parties in the progress can be very difficult. Therefore, in order to use the BIM with the basis of data to manage the lifetime of the school facility, it is necessary to develop the specialized BIM process customized to the school facilities. Using this as the base, the BIM process specifically for school facilities should be phased in, applied, and expanded. The objective of this study is to define the scope of application and to plan for the efficient utilization of the BIM process specialized for school facilities, when conducting the project from planning phase to design development phase through the series of processes. Unlike the presently used enhancement of the visible minute details of the models, the methods to enhance the quality of information contained inside the model will be proposed. Also, the user will participate in the school facility construction. The realistic BIM application is aimed through the research for the processes for building models that will be utilized for construction and management.

Analysis of Cold Air Flow Characteristics according to Urban Spatial Types to Construct a Wind Road - Focused on Urban Area of Changwon - (바람길 조성을 위한 도시공간유형별 찬공기 유동 특성 분석 - 창원시 도시지역을 중심으로 -)

  • LEE, Su-Ah;SONG, Bong-Geun;PARK, Kyung-Hun
    • Journal of the Korean Association of Geographic Information Studies
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    • v.25 no.2
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    • pp.30-47
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    • 2022
  • This study analyzed the characteristics of cold air flow according to spatial types in urban areas of Changwon-si, Gyeongsangnam-do. The spatial types were classified by cluster analysis considering the land use map, building information, and topographic characteristics produced on the Changwon biotope map. The amount of cold air and wind speed were derived by KLAM_21 modeling. As a result, spatial types were classified into a total of 14 types considering the density and height of buildings, land use types, and topographic characteristics. Cold air flow was found to generate cold air in the valley of the forest area outside urban area, move through roads and open spaces, and accumulate in the low-lying national industrial complex, and then spread cold air throughout the urban areas. There was a lot of cold air flow in the tall building area, and the cold air accumulation was less in the slope and ridge areas. The results of this study were able to understand the characteristics of cold air flow according to building density, land use type, and topography, which will be usefully used as basic data for urban wind road construction to mitigate climate and improve air quality in urban areas.

Strategy and Technology for Digital Transformation of Design and Construction of RC Structures (철근콘크리트골조 설계와 현장관리 디지털전환 전략과 기술개발)

  • Chee Kyeong Kim
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.36 no.4
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    • pp.265-272
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    • 2023
  • This paper presents a conceptual strategy and technologies for the digital transformation of design and construction of reinforced concrete (RC) structures. The development of an automated detail design strategy for RC structures is described. Integrated digital platform based on 5D BIM concept is proposed for the replacement of the current technology environment-based 2D CAD. Generally, the detail design development is labor-intensive and iterative. Effective automation of relevant aspects can dramatically improve productivity and accuracy. The proposed solutions for the automated BIM modeling based on the rebar and formwork detail design automation achieves the productivity and accuracy sufficient for site application. The platform integrates and manages the information flow between each solution or application and provides it to all participants of the project. Finally, it is expected that the proposed strategy and technologies can be further enhanced to achieve the productivity and accuracy needed for widespread site application and digital transformation.

An Approach to the BIM-enabled Assessment of Building Circulation using Quantitative Data and its Weight (동선관련 정성적 요구사항 평가를 위한 가중치를 적용한 BIM기반 정량데이터 활용방안에 관한 연구)

  • Shin, Jaeyoung;Lee, Jin-Kook
    • Journal of Digital Contents Society
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    • v.16 no.2
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    • pp.335-343
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    • 2015
  • This paper describes a quantitative approach to the BIM-enabled assessment of building circulation by using quantitative data and applying its weight. Assessment of building circulation plays an important role before construction stage because of related requirements regulated by design guide, building codes, etc. and design decision making as well. In this paper, Qualitative issue is mainly dealt with that are usually excluded from rule checking objects due to their implicit definition such as 'comfortable circulation'. A weighting framework is suggested using weighted data of circulation properties such as 1) metric distance, 2) number of passing spaces, 3) number of turning spaces, 4) window area of passing space, etc.

Building Fire Monitoring and Escape Navigation System Based on AR and IoT Technologies (AR과 IoT 기술을 기반으로 한 건물 화재 모니터링 및 탈출 내비게이션 시스템)

  • Wentao Wang;Seung-Yong Lee;Sanghun Park;Seung-Hyun Yoon
    • Journal of the Korea Computer Graphics Society
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    • v.30 no.3
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    • pp.159-169
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    • 2024
  • This paper proposes a new real-time fire monitoring and evacuation navigation system by integrating Augmented Reality (AR) technology with Internet of Things (IoT) technology. The proposed system collects temperature data through IoT temperature measurement devices installed in buildings and automatically transmits it to a MySQL cloud database via an IoT platform, enabling real-time and accurate data monitoring. Subsequently, the real-time IoT data is visualized on a 3D building model generated through Building Information Modeling (BIM), and the model is represented in the real world using AR technology, allowing intuitive identification of the fire origin. Furthermore, by utilizing Vuforia engine's Device Tracking and Area Targets features, the system tracks the user's real-time location and employs an enhanced A* algorithm to find the optimal evacuation route among multiple exits. The paper evaluates the proposed system's practicality and demonstrates its effectiveness in rapid and safe evacuation through user experiments based on various virtual fire scenarios.

The Acquisition of Urban Information by using the Aerial polyhedral Oblique Imagery (항공 다면 경사 영상을 이용한 도시 정보 취득)

  • Kim, Won-Dae;Song, Young-Sun
    • Proceedings of the Korean Society of Surveying, Geodesy, Photogrammetry, and Cartography Conference
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    • 2010.04a
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    • pp.295-299
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    • 2010
  • The vertical photographs of the existing production role of aerial photogrammetry was sufficient for the purpose. The current variety of purposes, such as image maps are used. However, a 3-D stereoscopic mapping, three-dimensional modeling and obtaining the side information of objects are difficult with limitations. In this study, aerial polyhedral oblique imagery are used for obtaining the a vertical and the side information of buildings at the same time to get used to the urban information. The results of this study, various urban information was available, the existing vertical photos can overcome the limitations of the techniques.

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Developing Stereo-vision based Drone for 3D Model Reconstruction of Collapsed Structures in Disaster Sites (재난지역의 붕괴지형 3차원 형상 모델링을 위한 스테레오 비전 카메라 기반 드론 개발)

  • Kim, Changyoon;Lee, Woosik
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.6
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    • pp.33-38
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    • 2016
  • Understanding of current features of collapsed buildings, terrain, and other infrastructures is a critical issue for disaster site managers. On the other hand, a comprehensive site investigation of current location of survivors buried under the remains of a building is a difficult task for disaster managers due to the difficulties in acquiring the various information on the disaster sites. To overcome these circumstances, such as large disaster sites and limited capability of rescue workers, this study makes use of a drone (unmanned aerial vehicle) to effectively obtain current image data from large disaster areas. The framework of 3D model reconstruction of disaster sites using aerial imagery acquired by drones was also presented. The proposed methodology is expected to assist fire fighters and workers on disaster sites in making a rapid and accurate identification of the survivors under collapsed buildings.

Indoor Location Estimation and Navigation of Mobile Robots Based on Wireless Sensor Network and Fuzzy Modeling (무선 센서 네트워크와 퍼지모델을 이용한 이동로봇의 실내 위치인식과 주행)

  • Kim, Hyun-Jong;Kang, Guen-Taek;Lee, Won-Chang
    • Journal of the Korean Institute of Intelligent Systems
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    • v.18 no.2
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    • pp.163-168
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    • 2008
  • Navigation system based on indoor location estimation is one of the core technologies in mobile robot systems. Wireless sensor network has great potential in the indoor location estimation due to its characteristics such as low power consumption, low cost, and simplicity. In this paper we present an algorithm to estimate the indoor location of mobile robot based on wireless sensor network and fuzzy modeling. ZigBee-based sensor network usually uses RSSI(Received Signal Strength Indication) values to measure the distance between two sensor nodes, which are affected by signal distortion, reflection, channel fading, and path loss. Therefore we need a proper correction method to obtain accurate distance information with RSSI. We develop the fuzzy distance models based on RSSI values and an efficient algorithm to estimate the robot location which applies to the navigation algorithm incorporating the time-varying data of environmental conditions which are received from the wireless sensor network.

An Analysis of 3D Mesh Accuracy and Completeness of Combination of Drone and Smartphone Images for Building 3D Modeling (건물3D모델링을 위한 드론과 스마트폰영상 조합의 3D메쉬 정확도 및 완성도 분석)

  • Han, Seung-Hee;Yoo, Sang-Hyeon
    • Journal of Cadastre & Land InformatiX
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    • v.52 no.1
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    • pp.69-80
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    • 2022
  • Drone photogrammetry generally acquires images vertically or obliquely from above, so when photographing for the purpose of three-dimensional modeling, image matching for the ground of a building and spatial accuracy of point cloud data are poor, resulting in poor 3D mesh completeness. Therefore, to overcome this, this study analyzed the spatial accuracy of each drone image by acquiring smartphone images from the ground, and evaluated the accuracy improvement and completeness of 3D mesh when the smartphone image is not combined with the drone image. As a result of the study, the horizontal (x,y) accuracy of drone photogrammetry was about 1/200,000, similar to that of traditional photogrammetry. In addition, it was analyzed that the accuracy according to the photographing method was more affected by the photographing angle of the object than the increase in the number of photos. In the case of the smartphone image combination, the accuracy was not significantly affected, but the completeness of the 3D mesh was able to obtain a 3D mesh of about LoD3 that satisfies the digital twin city standard. Therefore, it is judged that it can be sufficiently used to build a 3D model for digital twin city by combining drone images and smartphones or DSLR images taken on the ground.

A Study on the Prediction of Residual Probability of Fine Dust in Complex Urban Area (복잡한 도심에서의 유입된 미세먼지 잔류 가능성 예보 연구)

  • Park, Sung Ju;Seo, You Jin;Kim, Dong Wook;Choi, Hyun Jeong
    • Journal of the Korean earth science society
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    • v.41 no.2
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    • pp.111-128
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    • 2020
  • This study presents a possibility of intensification of fine dust mass concentration due to the complex urban structure using data mining technique and clustering analysis. The data mining technique showed no significant correlation between fine dust concentration and regional-use public urban data over Seoul. However, clustering analysis based on nationwide-use public data showed that building heights (floors) have a strong correlation particularly with PM10. The modeling analyses using the single canopy model and the micro-atmospheric modeling program (ENVI-Met. 4) conducted that the controlled atmospheric convection in urban area leaded to the congested flow pattern depending on the building along the distribution and height. The complex structure of urban building controls convective activity resulted in stagnation condition and fine dust increase near the surface. Consequently, the residual effect through the changes in the thermal environment caused by the shape and structure of the urban buildings must be considered in the fine dust distribution. It is notable that the atmospheric congestion may be misidentified as an important implications for providing information about the residual probability of fine dust mass concentration in the complex urban area.