@inproceedings{MarinkovicGalkaMeissner, author = {Marinkovic, Minja and Galka, Stefan and Meißner, Sebastian}, title = {Digital Twins for Internal Transport Systems: Use Cases, Functions, and System Architecture}, series = {Proceedings of the 56th Hawaii International Conference on System Sciences: January 3-6, 2023, Maui, Hawaii, USA}, booktitle = {Proceedings of the 56th Hawaii International Conference on System Sciences: January 3-6, 2023, Maui, Hawaii, USA}, publisher = {University of Hawaiʻi at Mānoa}, address = {Honolulu, HI}, isbn = {978-0-9981331-6-4}, pages = {1195 -- 1204}, abstract = {Internal transport systems are an essential part of intralogistics in production and distribution facilities. These are characterized by a variety of technologies as well as a multitude of interactions with other processes, such as warehouse, picking, and production processes. Therefore, resource planning and control of these systems is complex, especially for discontinuous conveyors. In this task, users can be supported by Digital Twins for decision-making, as they are suitable for investigating both future system states and possible actions. However, relevant use cases that are generally applicable across sectors as well as a generic system architecture for Digital Twins for resource planning and process control of in-plant transport systems have not yet been sufficiently investigated. In this paper, use cases are presented, relevant functions defined, and, finally, a generic functional and a logical reference architecture described. This is conducted with the design science in information systems research method together with a Systems Engineering approach. The use cases are determined at industrial partners of the research project TwInTraSys, which explores Digital Twins for the planning and control of internal transport systems. They are generalized and, thus, also applicable to other production and distribution facilities in different sectors. Further, the reference architecture can provide a basis for the successful implementation of the Digital Twin.}, language = {en} } @inproceedings{SchmidGalkaMarinkovicetal., author = {Schmid, Florian and Galka, Stefan and Marinkovic, Minja and Meißner, Sebastian}, title = {Simulationsbasierte Untersuchung von Abstraktionsgraden im Kontext Digitaler Zwillinge f{\"u}r innerbetriebliche Transportsysteme}, series = {Tagungsband 20. ASIM-Fachtagung Simulation in Produktion und Logistik, Ilmenau, 13. - 15. September 2023}, booktitle = {Tagungsband 20. ASIM-Fachtagung Simulation in Produktion und Logistik, Ilmenau, 13. - 15. September 2023}, editor = {Bergmann, S{\"o}ren and Feldkamp, Niclas and Souren, Rainer and Straßburger, Steffen}, publisher = {Universit{\"a}tsverlag Ilmenau}, address = {Ilmenau}, isbn = {978-3-86360-276-5}, doi = {10.22032/DBT.57794}, pages = {135 -- 144}, abstract = {Current challenges in the planning and control of internal logistics systems are based on permanent changes in the requirements on the system, e.g., due to fluctuating order numbers or changes in their structure. For the representation and planning of in-house logistics processes, digital twins offer the possibility to verify different operational decisions such as predictive workforce scheduling. In this context, the quality of the results and their in-time presentation plays a decisive role. However, both target criteria are influenced by the detail-level of the digital representation. Based on a case study, this paper investigates the influence of the level of detail on the simulation runtime and result divergence to provide an evaluation for detail levels in the modelling of intralogistic transport systems.}, language = {de} } @inproceedings{GalkaSchmidGrasseretal., author = {Galka, Stefan and Schmid, Florian and Grasser, Dominik and Hohm, Jonathan and Stauber, Stephan and Meißner, Sebastian}, title = {Integration eines SAP-Transportleitsystem in eine Simulationsumgebung zur Unterst{\"u}tzung von Entscheidungen im operativen Betrieb}, series = {Tagungsband 20. ASIM-Fachtagung Simulation in Produktion und Logistik, Ilmenau, 13. - 15. September 2023}, booktitle = {Tagungsband 20. ASIM-Fachtagung Simulation in Produktion und Logistik, Ilmenau, 13. - 15. September 2023}, publisher = {Universit{\"a}tsverlag Ilmenau}, address = {ILmenau}, isbn = {978-3-86360-276-5}, doi = {10.22032/DBT.57813}, pages = {281 -- 291}, abstract = {Digital twins enable the digital representation of physical systems and provide comprehensive modelling and analysis capabilities. An online data exchange between the Digital twin and SAP is feasible, through integration of a transport control systems (SAP) via RESTful API. This interface allows decision making in resource allocation and furthermore the adaptation of the digital model if the real system changes. Despite the associated challenges in terms of data synchronisation, the integration has benefits such as a reduction in modelling effort and an increase in the lifetime of the digital twin. In the context of this work, the design of the interface between the simulation software and a SAP transport control system via RESTful API is described.}, language = {de} }