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Influence of Network Constraints on Modeling and Analysis of Cyber-Physical Systems
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Author(s): Stephanie Grubmüller (Virtual Vehicle Research Center, Austria), Georg Stettinger (Virtual Vehicle Research Center, Austria), Martin Benedikt (Virtual Vehicle Research Center, Austria)and Daniel Watzenig (Virtual Vehicle Research Center, Austria & Graz University of Technology, Austria)
Copyright: 2018
Pages: 33
Source title:
Solutions for Cyber-Physical Systems Ubiquity
Source Author(s)/Editor(s): Norbert Druml (Independent Researcher, Austria), Andreas Genser (Independent Researcher, Austria), Armin Krieg (Independent Researcher, Austria), Manuel Menghin (Independent Researcher, Austria)and Andrea Hoeller (Independent Researcher, Austria)
DOI: 10.4018/978-1-5225-2845-6.ch003
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Abstract
A cyber-physical system (CPS) is a composition of an embedded computer, a network and a physical process. Usually, the plant, which represents the physical part, is controlled by an embedded system, which consists of computation, communication and control elements, via the global network. This contribution focuses on networked control systems (NCSs) which represents a specific class of CPS. As the problems of CPSs and NCSs are quite similar the goal is to transfer well developed techniques of NCSs to CPSs for analysis purposes. NCSs deal with the analysis of the interaction between the physical system and the cyber system. A main challenge of a control engineer is the development of stable and robust controllers for a NCS. The same goal is present in the design of CPS. To ensure this goal the analysis of such a feedback system has to be performed which is not straight forward and limited by the used modeling approach. This work compares different state-of-the-art modeling approaches for NCSs and stability analysis methods therefore.
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