• Title/Summary/Keyword: Space Construction Model

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A Conceptual Framework of an Agent-Based Space-Use Prediction Simulation System

  • Cha, Seung Hyun;Kim, Tae Wan
    • Journal of Construction Engineering and Project Management
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    • v.5 no.4
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    • pp.12-15
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    • 2015
  • Size of building has a direct relationship with building cost, energy use and space maintenance cost. Therefore, minimizing building size during a project development is of paramount importance against such wastes. However, incautious reduction of building size may result in crowded space, and therefore harms the functionality despite the fact that building is supposed to satisfactorily support users' activity. A well-balanced design solution is, therefore, needed at an optimum level that minimizes building size in tandem with providing sufficient space to maintain functionality. For such design, architects and engineers need to be informed accurate and reliable space-use information. We present in this paper a conceptual framework of an agent-based space-use prediction simulation system that provides individual level space-use information over time in a building in consideration of project specific user information and activity schedules, space preference, ad beavioural rules. The information will accordingly assist architects and engineers to optimize space of the building as appropriate.

A Study on the Alternative Method of Video Characteristics Using Captioning in Text-Video Retrieval Model (텍스트-비디오 검색 모델에서의 캡션을 활용한 비디오 특성 대체 방안 연구)

  • Dong-hun, Lee;Chan, Hur;Hyeyoung, Park;Sang-hyo, Park
    • IEMEK Journal of Embedded Systems and Applications
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    • v.17 no.6
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    • pp.347-353
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    • 2022
  • In this paper, we propose a method that performs a text-video retrieval model by replacing video properties using captions. In general, the exisiting embedding-based models consist of both joint embedding space construction and the CNN-based video encoding process, which requires a lot of computation in the training as well as the inference process. To overcome this problem, we introduce a video-captioning module to replace the visual property of video with captions generated by the video-captioning module. To be specific, we adopt the caption generator that converts candidate videos into captions in the inference process, thereby enabling direct comparison between the text given as a query and candidate videos without joint embedding space. Through the experiment, the proposed model successfully reduces the amount of computation and inference time by skipping the visual processing process and joint embedding space construction on two benchmark dataset, MSR-VTT and VATEX.

A Study on the Requirement Information Management Model and Process Linked to Space Planning in the Early Design Stage

  • Jae Ho, Cho;Sang Woo, Kim;Bo Sik, Son;Jae Youl, Chun
    • International conference on construction engineering and project management
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    • 2013.01a
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    • pp.566-569
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    • 2013
  • The purpose of this research is to develop the technology to meet the requirements of the design content, and to build a 'Requirement Information Management Model' for the design project. The model that should be used in the early design stage will undergo the following process: First, basic requirements would be defined by extracting the design content in the form of a reusable library of space units. At the next stage, requirement information should be modified after considering unique characteristics for the project and conflict problems between function and performance.

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A Study on 4D CAD and GIS Integrated System for Process Risk Management Model (4D CAD와 GIS의 통합시스템을 통한 프로젝트 단계별 리스크관리 모델에 관한 연구)

  • Jeon, Seung-Ho;Yun, Seok-Heon;Paek, Joon-Hong
    • Journal of the Korea Institute of Building Construction
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    • v.7 no.3
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    • pp.91-98
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    • 2007
  • Recently a construction industry introduces information that brings about many advantages in the early planning phase, design phase and construction phase. Especially it replaces 2D, 3D systems(usually using explanation of drawing information) ai 4D CAD(offering a sort of 4D-having relation of construction schedule and 3D drawing information). Nevertheless a 4D has these benefits, it has limits which are not only usually using 3D modeling but also limit of making full use of practical affairs because of a lack of connecting varietals of progress of work. To solve these uppermost limits, this research is presenting unified systems to use in risk management which are efficient management of space and non-space information, space analysis, making full use of data base, introducing GIS system of easy interaction.

Establishment of Plan to lighten CAD Model for Strengthening Usability of Nuclear Power Plant 3D Model (원전 3D 모델 사용성 강화를 위한 CAD 모델 경량화 방안 정립)

  • Kim, Jong-Myeong;Kim, Woo-Joong
    • Proceedings of the Korean Institute of Building Construction Conference
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    • 2019.05a
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    • pp.248-249
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    • 2019
  • In the nuclear industry, in order to keep pace with the 4th industrial revolution era, they are trying to improve the construction and maintenance ability by utilizing the technologies such as digital twin and VR/AR from the construction stage. However, the nuclear 3D CAD model, which is used as the base in the latest technology, is heavy due to a large number of facilities per unit space compared to other industrial companies, and it is difficult to directly incorporate the latest technology into the results of CAD programs for design purposes. In this study, in order to improve usability, we tried to lighten the 3D model. First, we analyze the existing nuclear power plant 3D model and draw out the problems and features. Secondly, we derived the factors to consider when we make the 3D CAD models lightweight.

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Behaviour of Space Truss Erected by Post-tensioning (포스트텐션에 의해 시공된 공간 트러스의 거동)

  • 김진우
    • Proceedings of the Korea Committee for Ocean Resources and Engineering Conference
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    • 2000.10a
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    • pp.204-209
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    • 2000
  • This paper suggests that post-tensioned and dome-shaped space truss formed by post-tersionong is easy to fabricate in construction process. In particular, a laboratory model is used to show how a flat space truss system can be transformed into a dome-shaped space truss by means of post-tensioning. There are some diserpancy in vertical displacement of the dxperiment and theoretical analysis for space truss. Nonlinear analysis is used to predict the final shape shape of the space truss, the experiments tndicates that this construction method can offer economy over traditional methods. In addition, the analysis indicates that when all the sxisting mechanisms are controlled, the nonlinear finite element method is more reliable way to predict the shape of the dome-shaped space truss than the linear analysis.

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A Study on the Cost Estimating Method based on Spatial Unit Focused on Improving Limitation Caused by Lack of Spatial Information of the Cost Based on Work Type (공간단위 공사비 산정방법에 관한 연구 - 공종별 공사비의 공간정보 부재로 인한 한계점 개선을 중심으로 -)

  • Lee, Ki-Sang
    • Korean Journal of Construction Engineering and Management
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    • v.12 no.3
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    • pp.131-139
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    • 2011
  • In this Study, the Cost of Public Facility Construction in the VE Cost Model, and the Progress of the Construction Site Management, and Cost due to the Lack of Cpatial Information in Dispute Cost Work Type Recognize the limits of Historical Information, and to Overcome the Perception of Cost and Space Systems Unit In the Process of Transition that Began Seeking Ways to Improve Through this Study, Different Parts of the Proposed Area of Construction Work Unit System, the Core of Calculating Hourly and Detailed Engineering Information and Cost Information Generated Extension to Configure the Construction Unit in Every Space, Every Work Unit System, All Materials That Make Up Work Unit System, Unit Labor Costs, And All of the Configuration Items Enables Precise And Multidimensional Understanding is That.

Construction of Korean Space Weather Prediction Center: Storm Prediction Model

  • Kim, R.S.;Cho, K.S.;Moon, Y.J.;Yi, Yu;Choi, S.H.;Baek, J.H.;Park, Y.D.
    • Bulletin of the Korean Space Science Society
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    • 2008.10a
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    • pp.33.2-33.2
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    • 2008
  • Korea Astronomy and Space Science Institute (KASI) is developing an empirical model for Korean Space Weather Prediction Center (KSWPC). This model predicts the geomagnetic storm strength (Dst minimum) by using only CME parameters, such as the source location (L), speed (V), earthward direction (D), and magnetic field orientation of an overlaying potential field at CME source region. To derive an empirical formula, we considered that (1) the direction parameter has best correlation with the storm strength (2) west $15^{\circ}$ offset from the central meridian gives best correlation between the source location and the storm strength (3) consideration of two groups of CMEs according to their magnetic field orientation (southward or northward) provide better forecast. In this talk, we introduce current status of the empirical storm prediction model development.

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A Study on the LOD(Level of Detail) Model for Applications based on Indoor Space Data (실내공간 데이터 기반의 응용 서비스를 위한 세밀도 모델에 관한 연구)

  • Kang, Hye-Young;Lee, Jiyeong
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.32 no.2
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    • pp.143-151
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    • 2014
  • As the interest in indoor space increases, the demands for various services based on indoor space is increasing. With the demands, to construct spatial information for indoor space is also required, but there is not defined the LOD(Level of Detail) for indoor spatial data. Therefore, in this paper we classified data for indoor space data construction, and then we defined the accuracy and detail about the level of detail to provide suitable application services according to the type and representation method of each data. Most previous researches are focus on the geometrical representation, but in this paper we define a indoor LOD model based on type and representation method of data. In addition, we present applicable services with proposed LOD model and suggest a guideline for construction and application of indoor space.

A Study on Construction of 3D Virtual Space from Digital Map (전자지도를 이용한 3차원 가상공간 구축에 관한 연구)

  • Sung, Won-Suk
    • Journal of the Korean Society of Safety
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    • v.24 no.6
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    • pp.1-6
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    • 2009
  • This study describes a construction procedure of 3D virtual space using the NGIS data and its application to simulation. 3D space topography is modeled by using DEM consisted with triangular regular network. The elevations of nodal points of DEM are calculated through the interpolation with contour line and elevation points from the NGIS. Also, data for 2D roads and their environments, such as trees, lamps, and traffic signals, were extracted from the NGIS and projected on the DEM surfaces to get 3D virtual space. To give a reality to 3D virtual space and accelerate its graphic speed, data were converted into the directX format. It is believed that the virtual space constructed in this work can be applicable to the ubiqutous because DEM data can be converted to the AutoCAD format and ASCII code.