The concept of digital twins, initially developed in manufacturing, has found applications various industries. However, its adoption the construction field is still nascent, with a limited understanding benefits and implications. Existing examples twin implementation mainly provide general frameworks or possibilities for performance. To effectively harness potential twins construction, establishing connectivity predictability data exchange between physical virtual realms crucial. This...

A preliminary feasibility study evaluates various aspects of a project, such as environmental assessment, field study, technological validity, and economic feasibility. Among them, is the most important factor to use in selecting road route Korea. proper considers all costs incurred life cycle including construction costs, land acquisition collateral expenses, operation maintenance costs. However, only are traditionally considered assessment financial viability national projects. In...

This study introduces the BIM (building information modeling)-GIS (geographic system) conceptual mapping (B2GM) standard ISO N19166 and proposes a mechanism. In addition, major issues concerning BIM-GIS integration, considerations that it requires, are discussed. The B2GM is currently being standardized by spatial-information international standardization organization TC211. Previous studies on integration seem to focus of different types model schemas implementation service interfaces....

Augmented reality (AR) systems are becoming next-generation technologies to intelligently visualize the real world in 3D. This research proposes a sensor fusion based pipeline inspection and retrofitting for AR system, which can be used processes industrial plants. The proposed methodology utilizes prebuilt 3D point cloud data of environment, real-time Light Detection Ranging (LiDAR) scan image sequence from camera. First, we estimate current pose sensors platform by matching LiDAR augmented...

Shared and open offices have grown in demand value recent years. In these offices, no principal agent is available for space management because seats are not designated to specific users, posing difficulties lighting temperature control, facility management. This problem can be resolved by collecting data on the conditions of indoor office spaces using Internet Things (IoT) devices, providing managers spatial However, user privacy must undermined during collection. Therefore, this study...

최근 건물정보를 다루는 BIM(Building Information Modeling)과 공간정보를 GIS(Geographic System) 간의 연계 또는 통합을 시도하는 다양한 연구가 이루어지고 있다. 특히, BIM의 표준 데이터모델인 IFC(Industry Foundation Classes)와 GIS CityGML 변환에 대한 시도되었지만, 두 데이터의 특성과 사용목적이 많이 달라서 그 연구결과를 활용하기에는 아직 미미한 실정이다. 이에 본 연구에서는 BIM과 GIS의 상호연계의 가능성을 파악하기 위하여 IFC와 CityGML의 LOD(Level of Detail)별 객체 특성을 분석하였으며, 이러한 분석 내용을 바탕으로 빌딩 관점에서 매핑을 수행함으로써 연관성을 분석하였다. 연관성 결과를 기반으로 좀 더 효율적인 연계방안을 제시하였다. Recently, various researches have been attempted to link or integrate BIM...

The number of scan-to-BIM projects that convert scanned data into Building Information Modeling (BIM) for facility management applications in the Mechanical, Electrical and Plumbing (MEP) fields has been increasing. This conversion features an application purpose-oriented process, so Scan-to-BIM work parameters to be applied vary each project. Inevitably, a modeler manually adjusts BIM modeling according purpose, repeats process until desired result is achieved. repetitive manual adverse...

Accurate earthwork quantity estimation is essential for effective project planning and cost management in the Architecture, Engineering, Construction (AEC) industry. Traditional methods takeoff are often time-consuming susceptible to human error, particularly when working with unstructured datasets such as CAD drawings. This study introduces Earthwork Network Architecture (ENA), a novel deep learning framework that incorporates Large Language Models (LLMs), Multi-Layer Perceptron (MLP), Long...

본 연구는 BIM과 GIS간 상호운용성을 위해 외부 BIM 참조 모델을 제안한다. 이를 상호운용성과 관련된 연구 현황과 유즈케이스들을 조사하였다. 그리고 이러한 상호운용성 지원을 위한 CityGML 모델 확장을 IFC와 CityGML의 구조를 분석하였다. 이런 결과를 바탕으로 IFC로부터 CityGML로 맵핑하는 규칙을 정의한 메타 데이터를 포함한 제안하였다. The purpose of the present study is to suggest extern reference model for interoperability between and GIS. After we surveyed research progress usecases related do this, analyzed architecture neutral such as IFC, identify differences these expand model. By using this result, proposed external...

Pavement markings play a critical role in reducing crashes and improving safety on public roads. As road pavements age, maintenance work for purposes becomes critical. However, inspecting all pavement at the right time is very challenging due to lack of available human resources. This study was conducted develop an automated condition analysis framework using machine learning technology. The proposed consists three modules: data processing module, marking detection visibility module....

This study proposes a Building Information Modeling (BIM)-based Human Machine Interface (HMI) framework for intuitive space-based energy management. The BIM-based HMI supports building managers with method of linking data between BIM and Energy Management System (BEMS), which are heterogeneous systems, provides real-time monitoring. also BEMS systematic development. Towards this end, the was defined after deriving considerations requirements necessary control point through questionnaire...

This paper introduces a novel approach for mapping process description with Scan data to Building Information Modeling (BIM) in 3D Geographic System (GIS). The methodology focuses on automatically generating building mass and facade information the GIS platform using Point Cloud Data (PCD) of Airborne Laser Scanning (ALS). Advanced scanning techniques capture detailed geometry from physical site generate high-resolution point clouds, which are processed create models integration. critical...

IFC-CityGML LOD Mapping Automation Based on Multi-Processing Tae Wook Kang, Chang Hee Hong Pages 1-8 (2015 Proceedings of the 32nd ISARC, Oulu, Finland, ISBN 978-951-758-597-2, ISSN 2413-5844) Abstract: Over last few years, to increase competitiveness domestic construction industries, governments US, UK, Japan, and other developed countries have introduced Building Information Modeling (BIM) as part their support policy; a result, BIM information is increasing rapidly. In this regard, need...

최근 실내공간정보 기반의 시설물 운영관리에 대한 관심이 고조되면서 BIM과 GIS를 연계한 유지관리에 다양한 연구가 진행되고 있다. 특히 대용량 데이터에 형상정보의 가시화 처리는 중요한 이슈로, 유지관리 시스템 운영에 요소이다. 따라서 본 연구는 GIS 기반 BIM 모델의 효과적 구현을 위하여 IFC 스키마 시나리오를 통한 공간인덱싱 알고리즘을 설계하고, OcTree 기법을 적용하여 일부 구현하였다. 구현된 결과를 샘플데이터에 테스트한 후 최종적으로 데이터의 가시화를 위한 제안한다. Recently, with the increasing interest in facility management based on indoor spatial information, various studies have been attempted to manage conversion between and GIS. Visualization of geometry data for a large-scale...

The aim of this study was to suggest the System Architecture for Effective Architectural MEP Pipe Reverse Design(PRD) based on Point Cloud and derive consideration. To do this, requirement use-cases related pipe reverse design work were defined architecture automation proposed. identify a consideration finding issues, prototype developed using evaluated.

Ion channels in carcinoma and their roles cell proliferation are drawing attention. Intracellular Ca(2+) ([Ca(2+)]i)-dependent signaling affects the fate of cancer cells. Here we investigate role Ca(2+)-activated K(+) channel (SK4) head neck squamous cells (HNSCCs) different lines; SNU-1076, OSC-19 HN5. Treatment with 1 µM ionomycin induced death all three lines. Whole-cell patch clamp study suggested common expressions Cl(-) (Ano-1) nonselective cation (CAN). 1-EBIO, an activator SK4,...