Title: An approach for mastering data-induced conflicts in the digital twin context

Authors: Georg Alexander Staudter; Tuğrul Öztürk; Daniel Michael Martin; Jakob Hartig; Dirk Alexander Molitor; Florian Hoppe; Reiner Anderl; Peter Groche; Peter F. Pelz; Matthias Weigold

Addresses: Department of Mechanical Engineering, Institute of Computer Integrated Design, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute of Production Management, Technology and Machine Tools, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute for Production Engineering and Forming Machines, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Chair of Fluid Systems, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute for Production Engineering and Forming Machines, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute for Production Engineering and Forming Machines, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute of Computer Integrated Design, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute for Production Engineering and Forming Machines, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Chair of Fluid Systems, Technische Universität Darmstadt, 64287 Darmstadt, Germany ' Department of Mechanical Engineering, Institute of Production Management, Technology and Machine Tools, Technische Universität Darmstadt, 64287 Darmstadt, Germany

Abstract: Decision-making highly relies on the accuracy and veracity of data. Therefore, redundant data acquisition and fusion has established but lack the ability to handle conflicting data correctly. Especially digital twins, which complement physical products with mathematical models, and contribute to redundancy. Uncertainty propagates through the digital twin and provides the opportunity to check data for conflicts, to identify affected subsystems and to infer a possible cause. This work presents an approach that combines a digital twin with the ability of uncertainty propagation, conflict detection, processing and visualisation techniques for mastering data-induced conflicts. The capability of this method to identify and isolate faults was examined on a technical system with a multitude of sensors.

Keywords: data-induced conflicts; digital twin; uncertainty propagation; error detection; soft-sensor.

DOI: 10.1504/IJPLM.2021.115698

International Journal of Product Lifecycle Management, 2021 Vol.13 No.1, pp.25 - 47

Received: 01 Aug 2020
Accepted: 07 Jan 2021
Published online: 17 Jun 2021 *

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