Abstract: Cyber Physical Systems (CPS) are technological systems where physical and cyber components are tightly integrated. Most CPS are actually networked, via the Internet, or the cloud, or via special logical or physical networks. Examples include modern and future factories, Industrie 4.0 systems, modern enterprises, heterogeneous wireless networks, sensor networks, social networks over the Internet, Industrial Internet systems. In Networked CPS (Net-CPS) new fundamental challenges emerge due to network semantics and characteristics. We describe new fundamental results on Net-CPS focusing on two fronts: (a) on the interface between cyber and physical components and their joint design and performance; (b) on the implications of the networked interfaces and the collaborative aspects of these systems and their design and performance. Our results focus on foundational aspects of modeling, architecture and performance of Net-CPS and include multi-layer multigraph models, constrained coalitional games, new concepts of value of information, event-driven inference and decision-making, formal safety analysis and verification combining metric temporal logic and reachability analysis. We next focus on one of the three multigraphs in our model, the communication multigraph, and demonstrate that the emerging technologies of Software Defined Wireless Networks (SDN) and Network Function Virtualization (NFV) are key enablers of Net-CPS, and in particular smart Net-CPS, due to the dynamic resource and function allocations they allow. We discuss the relationship of these new technologies to Internet of Things (IoT) and 5G technologies. We next demonstrate that our results lead to network virtualization as a key novel principle for consistent automation and high performance smart control of Net-CPS, leading to a novel Software Defined Architecture for Net-CPS. We describe applications of our results to smart manufacturing and distributed manufacturing supply chains. We close with promising future research directions.
Biodata: Diploma in Electrical and Mechanical Engineering from the National Technical University of Athens, Greece, 1970; M.S., Ph.D. in Applied Mathematics from Harvard University 1971, 1973. Since 1973, faculty member in the Electrical and Computer Engineering Department, and in the Applied Mathematics, Statistics and Scientific Computation Program, at the University of Maryland College Park. Founding Director of the Institute for Systems Research (ISR), 1985 to 1991. Since 1991, Founding Director of the Maryland Center for Hybrid Networks (HYNET). Since 2013, Guest Professor at the Royal Institute of Technology (KTH), Sweden. IEEE Life Fellow, SIAM Fellow, AAAS Fellow, NAI Fellow, IFAC Fellow, and a Foreign Member of the Royal Swedish Academy of Engineering Sciences (IVA). Received the 1980 George Axelby Prize from the IEEE Control Systems Society, the 2006 Leonard Abraham Prize from the IEEE Communications Society, the 2014 Tage Erlander Guest Professorship from the Swedish Research Council, and a three year (2014-2017) Senior Hans Fischer Fellowship from the Institute for Advanced Study of the Technical University of Munich, Germany. In 2016 he was inducted in the A. J. Clark School of Engineering Innovation Hall of Fame of the University of Maryland, and received the 2017 IEEE Simon Ramo Medal, and the 2017 AACC Richard E. Bellman Control Heritage Award.
Professor Baras' research interests include systems and control, optimization, communication networks, signal processing and understanding, applied mathematics, robotics, computing systems and networks, network security and trust, and model-based systems engineering.
Abstract: Evaluations of the energy consumption in industrial robot stations have recently shown that it is possible to obtain energy reduction up to 30% and peak power reduction up to 60%. This is based on a new efficient optimization procedure for hybrid systems and Petri Nets. Constraint Programming is used to reduce the discrete search space, and no physical models are included in the energy minimization. The procedure only assumes that desired sampled paths for a number of interacting moving devices are given. Furthermore, some interesting conflicts between energy reduction and robust scheduling are highlighted. It is also shown how the optimization procedure can be implemented in a flexible online and event-based information architecture called the Tweeting Factory. Simple messages (tweets) from all kinds of equipment are combined into high-level knowledge, and it is demonstrated how this information architecture can be used to support the energy optimization of robot stations.
Biodata: Bengt Lennartson is a Professor of the Chair of Automation since 1999 at Chalmers University of Technology, Gothenburg, Sweden. He is Head of the Division of Systems and Control at the Department of Signals and Systems, and he is IEEE Fellow for his contributions to hybrid and discrete event systems for automation and sustainable production. He has been Associate Editor for Automatica and IEEE Transaction on Automation Science and Engineering, General Chair of CASE 2015, and WODES 2008. He is (co)author of 270+ peer reviewed international papers, and currently, much intention is focused on sustainable production, including energy minimization of robot cells. Collaboration with industry involves Volvo, GM, Daimler, Kuka, and TetraPak.
Abstract: The introduction of wireless field devices into the process industry presents new technical challenges when these devices are used in closed loop control. This presentation will address how the traditional PID positional and velocity algorithms may be restructured as PIDPlus to use the slow, non-periodic measurement updates of a wireless transmitter. A combination of event triggered and periodic execution is used to address control of faster processes such as liquid and gas flow using wireless transmitters and wireless valves. Examples are used to demonstrate how this capability has been incorporated into commercial control systems. Information will be provided on the control performance achieved in field applications using wireless transmitters and/or wireless throttling valves. Future areas of event driven control in the process industry, in particular MPC control using wireless measurements, will be outlined as well.
Biodata: Mark was lead architect for DeltaV from its inception through 2005. In 2006, he took a very active role in the design and standardization of WirelessHART. Has been involved in several standards activities including the recently published ISA101. He currently leads the applied research group where he is pursuing his interests in control, analytics, wireless, operator interfaces, and mobile platforms. He holds over 125 patents and has coauthored four books on wireless, control, and systems. He is an ISA Fellow and a member of the Automation Hall of Fame. He received his bachelors from the University of Waterloo in Canada.