Digital Twin Monitoring for Cyber-Physical Access Control

Brian Greaves, Marijke Coetzee, Wai Sze Leung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


Cyber-physical systems are defined by the integration of physical space entities and cyberspace information processing systems. Physical access control is generally perimeter-based, where assets can be vulnerable to a malicious entity once they have entered the perimeter of the space. Therefore, the relative distances between subjects and objects are needed to enforce cyber-physical access control within the perimeter of the physical space. The interplay between a physical entity and its virtual representation can be modelled using the concept of a digital twin. A digital twin enables the virtual monitoring of a physical entity to ensure better access control decision-making. This research presents a prototype indoor positioning and tracking system that can uniquely identify and track people and equipment in physical 3D space to create and maintain digital twins in real-time. The integration of 2D image processing and 3D depth-sensing technologies results in a system that can monitor a physical space where entities come into proximity to one another. Furthermore, the system can be used to prevent transgressions between physical entities within a relative distance of a few centimetres by tracking entities using human digital twin technology and reporting their relative proximity to an access control system for real-time enforcement.

Original languageEnglish
Title of host publicationEmerging Information Security and Applications - 2nd International Symposium, EISA 2021, Revised Selected Papers
EditorsWeizhi Meng, Sokratis K. Katsikas
PublisherSpringer Science and Business Media Deutschland GmbH
Number of pages15
ISBN (Print)9783030939557
Publication statusPublished - 2022
Event2nd International Symposium on Emerging Information Security and Applications, EISA 2021 - Virtual, Online
Duration: 12 Nov 202113 Nov 2021

Publication series

NameCommunications in Computer and Information Science
Volume1403 CCIS
ISSN (Print)1865-0929
ISSN (Electronic)1865-0937


Conference2nd International Symposium on Emerging Information Security and Applications, EISA 2021
CityVirtual, Online


  • 3D depth sensing
  • Access control
  • Cyber-physical systems
  • Human digital twins
  • Stereovision

ASJC Scopus subject areas

  • General Computer Science
  • General Mathematics


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