Self-reconfiguration of real-time communication in cyber-physical systems |
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| Institution: | 1. Professorship for Adaptronics and Lightweight Design in Production, Technische Universität Chemnitz, 09107 Chemnitz, Germany;2. Professorship Micromanufacturing Technology, Technische Universität Chemnitz, 09107 Chemnitz, Germany;3. Fraunhofer Institute for Machine Tools and Forming Technology IWU, Reichenhainer Str. 88, 09126 Chemnitz, Germany;1. Friedrich Wilhelm Bessel Institut Forschungsgesellschaft m. b. H., Bremen 28359, Germany;2. Faserinstitut Bremen e.V., Bremen 28359, Germany;3. University of Bremen (FB4), Bremen 28359, Germany;4. Institut für Mikrosensoren, -aktoren und systeme (IMSAS), Bremen 28359, Germany;1. Aix Marseille Univ, CRET-LOG, Aix-en-Provence,France;2. The University of Melbourne, Department of Management & Marketing, Victoria, Australia;1. SUPSI, Institute of Systems and Technologies for Sustainable Production, Galleria 2, Manno 6928, Switzerland;2. CNR, Institute of Cognitive Science and Technologies, Via S. Martino della Battaglia 44, Rome 00185, Italy |
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| Abstract: | Today, in domains like automation and robotics systems consist of various sensors and computation nodes. Due to the temporal dependency in quality of measured data, such Cyber-Physical Systems (CPS) commonly have real-time requirements on communication. In addition, these systems shall become more flexible and scalable, e.g., by adding new components to the CPS. This would be most suitable if a CPS could react to the presence of a new component and reconfigure itself to run afterward with the new component integrated to the CPS. This capability is covered by the term Plug-and-Produce. In this paper, we propose a concept to enable Plug-and-Produce within a CPS whose network uses different communication media, e.g., Ethernet and CAN. To enable real-time communication provided by different communication protocols, their different synchronization mechanisms have to be combined to get a common time base within the entire system. For this purpose, we consider Ethernet as well as CAN-based real-time communication protocols and their synchronization mechanisms. The proposed concept for self-reconfiguration aims to be integrated into our three layered software architecture that is presented as well. |
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| Keywords: | Cyber physical systems Distributed embedded systems Dynamic reconfiguration Plug-and-Produce Real-time communication Real-time systems |
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