Talks & Seminars
Title: CPS with Mixed Time- and Event-Triggered Communication
Prof. Samarjit Chakraborty, TU Munich
Date & Time: October 5, 2016 11:00
Venue: SIC 305, 03rd Floor, C Block, Department of Computer Science and Engineering, Kanwal Rekhi (KReSIT) Building
Many embedded control systems have distributed implementations, in which sensor values and control signals have to be communicated over shared communication buses. The participants sharing the bus along with the bus protocol being used determine the delay suffered by the control signals, which in turn affect stability and control performance. Two broad classes of communication protocols exist, which are based on either the time-triggered or the event-triggered paradigms. While the former results in more deterministic communication and is hence easier to use when guarantees on stability and control performance are required, the latter has several advantages like better bus utilization and easier extensibility. This has also resulted in hybrid protocols that combine the event- and time-triggered paradigms. However, there has been little work on how to exploit such hybrid protocols when designing control algorithms, in order to utilize the benefits of both the communication paradigms. In this talk we will discuss this problem and propose some promising research directions that involve the co-design of control strategies and communication protocols.
Speaker Profile:
Samarjit Chakraborty received his PhD in electrical and computer engineering from ETH Zurich in 2003. He is a professor of electrical engineering at TU Munich in Germany, where he holds the chair for Real-Time Computer Systems. From 2011 to 2016, he also led a research program on embedded systems for electric vehicles at the TUM CREATE Centre for Electromobility in Singapore, where he also served as a scientific advisor. Prior to taking up his current position at TU Munich in 2008, he was an assistant professor of computer science at the National University of Singapore from 2003 to 2008. His research interests include distributed embedded systems, hardware/software codesign, embedded control systems, and sensor network-based information processing for healthcare, smart buildings and electromobility. He was the general chair of Embedded Systems Week (ESWeek) 2011, and the program chair of EMSOFT 2009 and SIES 2012, and regularly serves on the TPCs of various conferences on real-time and embedded dystems. During 2013 to 2014, he also served on the Executive Committee of DAC, where he started a new track on Automotive Systems and Software along with Anthony Cooprider from the Ford Motor Company. He is on the editorial boards of the IEEE Transactions of Computers, ACM Transactions on Cyber-Physical Systems, the Leibnitz Transactions on Embedded Systems, Fesign Automation for Embedded Systems and the EURASIP Journal on Embedded Systems. For his PhD thesis, he received the ETH Medal and the European Design and Automation Association's Outstanding Doctoral Dissertation Award in 2004. In addition, he has received Best Paper Awards in ASP-DAC 2011 and EUC 2010, a Best Demo Award in Mobisys 2013, and several Best Paper Award nominations at RTSS, EMSOFT, CODES+ISSS, DAC, and ECRTS.
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