Virtual reality based time and motion study with support for real walking
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Date
2016
Publication Type
Conference Paper
ETH Bibliography
yes
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Abstract
Manual operations in mass production are important cost drivers. Thus, tools like the MTM (Methods-time Measurement) – a time and motion study method – were introduced, which are nowadays established in industry for evaluation and improvement of production facilities. In this method, cardboard engineering is used to build simplified physical mock-ups of machines or production lines, in which the manual working process can be simulated. However, new strategies like e.g. decentralized production require the worker to walk, which is not well incorporated in the MTM and times are only estimated from the walking distance.
Since many workplaces, machines or production lines already exist as digital models, it is obvious to perform the MTM completely virtually. However, this comes at the cost of a complex handling and strongly reduced realism because a desktop-based MTM application does not allow natural navigation – like walking – within the full-sized models like the cardboard setups do.
This paper introduces a virtual reality-based MTM that also allows for real walking in virtual factories without using a treadmill or other walking devices. With a subtle redirection of the user during walking, these virtual factories can even be larger than the available physical space. Hence, a realistic measuring of walking times and distances can be done instead of an estimation. Since the MTM can be completely performed within a virtual environment, it gives a new realism to the method compared to the cardboard procedure. The paper closes with an outlook on future work and extensions of this novel virtual MTM.
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Publication status
published
External links
Book title
Factories of the Future in the digital environment - Proceedings of the 49th CIRP Conference on Manufacturing Systems
Journal / series
Volume
57
Pages / Article No.
303 - 308
Publisher
Elsevier
Event
49th CIRP Conference on Manufacturing Systems (CIRP-CMS 2016)
Edition / version
Methods
Software
Geographic location
Date collected
Date created
Subject
HUMAN-COMPUTER INTERACTION, HCI; FORTBEWEGUNG (ANATOMIE UND PHYSIOLOGIE); VIRTUELLE WELTEN + VIRTUELLE REALITÄT + CYBERSPACE (COMPUTERSIMULATION); HUMAN-COMPUTER INTERACTION, HCI; LOCOMOTION (ANATOMY AND PHYSIOLOGY); VIRTUAL ENVIRONMENTS + VIRTUAL REALITY + CYBERSPACE (COMPUTER SIMULATION); Time and motion study; Methods-time measurement; Virtual reality; Predetermined motion time system; Human walking; Real walking in virtual environments; Virtual training; Assembly design; Production engineering; Production planning
Organisational unit
03641 - Wegener, Konrad (emeritus) / Wegener, Konrad (emeritus)
08844 - Kunz, Andreas (Tit.-Prof.) / Kunz, Andreas (Tit.-Prof.)