Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission

As indoor space becomes more important in our daily life, the demand to build digital twins for indoor spaces is increasing accordingly. The properties of indoor spaces, however, differ from those of outdoor spaces, and we need to apply different approaches to build indoor digital twins. In our work...

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Main Authors: Youngin Lee, Min Hyeok Choi, Yong-Soo Song, Jun-Gi Lee, Jin Young Park, Ki-Joune Li
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:ISPRS International Journal of Geo-Information
Subjects:
Online Access:https://www.mdpi.com/2220-9964/13/12/460
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author Youngin Lee
Min Hyeok Choi
Yong-Soo Song
Jun-Gi Lee
Jin Young Park
Ki-Joune Li
author_facet Youngin Lee
Min Hyeok Choi
Yong-Soo Song
Jun-Gi Lee
Jin Young Park
Ki-Joune Li
author_sort Youngin Lee
collection DOAJ
description As indoor space becomes more important in our daily life, the demand to build digital twins for indoor spaces is increasing accordingly. The properties of indoor spaces, however, differ from those of outdoor spaces, and we need to apply different approaches to build indoor digital twins. In our work, we propose a framework for building an indoor digital twin with a use case for hospitals in general and large hospitals in particular, which may be considered as one of the most complicated types of digital twin. One of our goals is to establish a framework for building indoor digital twins based on standards and our framework starts from OGC IndoorGML, which is a standard for indoor data models and encoding schemes for indoor spatial data. In this paper, each step of the framework is presented for the construction of an indoor hospital digital twin focusing on a use case of epidemic analysis of COVID-19 transmission in a hospital. The use case study covers the entire life cycle of the indoor spatial application from requirement analysis, data modeling, and building indoor spatial data to the development of a COVID-19 transmission analysis. Our work represents a use case for indoor digital twins based on the OGC IndoorGML standard and eventually may serve as a framework and reference for building indoor digital twins. As our work is mainly focused on the construction of hospital digital twins, the study on COVID-19 infection model itself is limited in this paper. Improvement of the infection models and validations will be the next step of our work. As HVAC (heat, ventilation, and air conditioning) was not fully considered in our use case, we also expect that it is possible to strengthen our use case by including HVAC for the analysis of airflow dynamics.
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spelling doaj-art-a4213c811ddf4c2db41ea507c127d4fe2025-08-20T02:53:43ZengMDPI AGISPRS International Journal of Geo-Information2220-99642024-12-01131246010.3390/ijgi13120460Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 TransmissionYoungin Lee0Min Hyeok Choi1Yong-Soo Song2Jun-Gi Lee3Jin Young Park4Ki-Joune Li5Pusan National University Yangsan Hospital, Yangsan 50612, Republic of KoreaDepartment of Preventive and Occupational and Environmental Medicine, Schools of Medicine, Pusan National University, Yangsan 50612, Republic of KoreaPusan National University Yangsan Hospital, Yangsan 50612, Republic of KoreaLee Urban Environment Research Institute, Busan 46241, Republic of KoreaYongin Severance Hospital, Yongin 16995, Republic of KoreaGraduate School of Data Science, Pusan National University, Busan 46241, Republic of KoreaAs indoor space becomes more important in our daily life, the demand to build digital twins for indoor spaces is increasing accordingly. The properties of indoor spaces, however, differ from those of outdoor spaces, and we need to apply different approaches to build indoor digital twins. In our work, we propose a framework for building an indoor digital twin with a use case for hospitals in general and large hospitals in particular, which may be considered as one of the most complicated types of digital twin. One of our goals is to establish a framework for building indoor digital twins based on standards and our framework starts from OGC IndoorGML, which is a standard for indoor data models and encoding schemes for indoor spatial data. In this paper, each step of the framework is presented for the construction of an indoor hospital digital twin focusing on a use case of epidemic analysis of COVID-19 transmission in a hospital. The use case study covers the entire life cycle of the indoor spatial application from requirement analysis, data modeling, and building indoor spatial data to the development of a COVID-19 transmission analysis. Our work represents a use case for indoor digital twins based on the OGC IndoorGML standard and eventually may serve as a framework and reference for building indoor digital twins. As our work is mainly focused on the construction of hospital digital twins, the study on COVID-19 infection model itself is limited in this paper. Improvement of the infection models and validations will be the next step of our work. As HVAC (heat, ventilation, and air conditioning) was not fully considered in our use case, we also expect that it is possible to strengthen our use case by including HVAC for the analysis of airflow dynamics.https://www.mdpi.com/2220-9964/13/12/460indoor digital twinhospital digital twinsOGC IndoorGMLuse case of IndoorGMLCOVID-19 indoor transmission
spellingShingle Youngin Lee
Min Hyeok Choi
Yong-Soo Song
Jun-Gi Lee
Jin Young Park
Ki-Joune Li
Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission
ISPRS International Journal of Geo-Information
indoor digital twin
hospital digital twins
OGC IndoorGML
use case of IndoorGML
COVID-19 indoor transmission
title Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission
title_full Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission
title_fullStr Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission
title_full_unstemmed Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission
title_short Building an Indoor Digital Twin—A Use-Case for a Hospital Digital Twin to Analyze COVID-19 Transmission
title_sort building an indoor digital twin a use case for a hospital digital twin to analyze covid 19 transmission
topic indoor digital twin
hospital digital twins
OGC IndoorGML
use case of IndoorGML
COVID-19 indoor transmission
url https://www.mdpi.com/2220-9964/13/12/460
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