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Reliable Networked Sensing Systems
Past Projects and Future Research Agenda
Jan Beutel, ETH Zurich
Past Research Projects
2000 – 2007 BTnode ProjectCollaborators: F. Mattern, K. Römer (all ETH Zurich) and R. Schmid (Art of Technology, Zurich)
2001 – 2005 NCCR MICS – Communicating Embedded SystemsCollaborators: F. Mattern and R. Wattenhofer (all ETH Zurich) and A. Schiper (EPF Lausanne)
2000 – 2004 Miniaturized Wearable Computing: Technology and Applications Collaborators: G. Tröster, B. Schiele and L. van Gool (all ETH Zurich)
2001 NetsimCollaborators: E. Wandeler and A. Zollinger (all ETH Zurich)
1999 PicoRadioCollaborators: B. Brodersen, J. Rabaey and P. Wright (all UC Berkeley)
1998 – 1999 WinCE EngineCollaborators: T. Bösch (ETH Zurich) and A. Thiel (u-blox AG, Zurich)
1998 GPS-E1 Evaluation KitCollaborators: A. Thiel and J.P. Wyss (all u-blox AG, Zurich)
1997 – 1998 Palm Pilot KioskCollaborators: T. Bösch (ETH Zurich)
1997 Build Your WorldCollaborators: B. Plattner, M. Kreuzer (all ETH Zurich) and M. Manegold (Imagimation, Zug)
1995 – 1998 ThixoStructCollaborators: A. Wahlen (ETH Zurich) and Aluminum Martigny (Martigny, CH)
Current and Future Research Projects
2008 – 2012 nano-tera.ch – OpenSense, WaWa-NodeFunction: co-investigator, under review
2009 – 2012 NCCR MICS PermaSense-III, Observability by DesignFunction: principal investigator
2008 – 2010 The Swiss ExperimentFunction: principal investigatorFunding: CCES, SNSF, Microsoft Research; 570’000 CHF for the individual project (3 years)
2006 – 2008 Safety Critical Sensor Networks for Building ApplicationsFunction: principal investigatorFunding: CTI and Siemens Building Technologies, Zug, Switzerland; 699’000 CHF (3 years)
2005 – 2009 NCCR MICS PermaSense-II/EMSRFunction: principal investigatorFunding: SNSF, Federal Office for the Environment (FOEN); 580’000 CHF (3 years)
Sensor Network Platform KitFunction: principal investigatorFunding: 670’000 CHF (3 years)
Deployment of Sensor NetworksFunction: co-investigatorFunding: 900’000 CHF (4 years)
Serious Building GamesFunction: co-investigatorFunding: joint funding with “Deployment of Sensor Networks”
Finances and Technical Staff
• Participated in the acquisition of 3.419 MCHF third party funding– 1/3 principal investigator, 2/3 co-investigator with Lothar Thiele
• Current technical staff (2FTE + HA)– Mustafa Yücel, Roman Lim – software engineer, Platform Kit – since
10/2006– Josua Hunziker – student helper, PermaSense project – since 08/2008
• Past technical staff– Tobias Rein – project engineer, Platform Kit – 05/2007 to 08/2007– Vinodh Venkatesan – student helper, DSN – 10/2006 to 07/2007– Kevin Martin – software engineer, BTnode and DSN – 08/2005 to
01/2007– Martin Hinz – software engineer, BTnode platform – 08/2003 to 09/2004
Supervision and Research Staff
• Supervision of 44 students in various master and term theses
• PhD student collaborators– M. Keller – Complex Sensing and Actuation – since 10/2008
– F. Ferrari – Time Triggered Architectures – since 09/2008
– M. Wöhrle – Wireless Sensor Network Testing – since 01/2007
– M. Guo – Time Triggered Architectures – 11/2006 to 10/2008
– A. Meier – Low-power MAC Protocols – since 11/2005on leave at the National University of Singapore from 11/2007 to 04/2008
– C. Moser – Regenerative Energy Supplies – since 10/2004
Teaching
• Design and implementation of the BTnode tutorial for graduate lab accompanying lectures in Embedded Systems and Wireless Sensor Networks– Additional transfer to conference tutorials (INSS, EWSN, ASCI)
• Design and implementation of the MOSES tutorial for a graduate course in Discrete Event Systems
• Lectures in Embedded Systems, Computer Engineering, Hardware- Software Codesign, Ad-hoc and Sensor Networks, Discrete Event Systems, Advanced Computer Architecture
• Frequent invited speaker/lecturer at seminars, summer schools, workshops
Past Achievements – Systems
• System concept and implementation of the Deployment-Support Network– Fundamentally new testbed concepts– Used in-house as well as by industrial partner for actual product
development
• The BTnode Platform for fast-prototyping sensor and ad-hoc network applications– Commercialized, worldwide dissemination, in use for teaching– >1000 units sold to customers from +17 countries– Commercial replicas resulting from open source policy
• Pioneered work in Positioning Algorithms for Low-power Wireless Networks– Still an unsolved problem– Nurturing whole sessions/conferences on the topic
Past Achievements – Dissemination
Publicly Available Hard- and Software Developments– The PermaSense Deployment– Continuous Integration for Wireless Sensor Networks– Sensor Network Platform Kit– The Sensor Network Museumtm
– Deployment-Support Network– The BTnode Platform and BTnut– TinyOS-2.x-contrib– Build Your World – educational CDROM
worldwide dissemination
0102030405060
BTnode rev3 sales 2004-2007BTnodes
USB Adapter
Publications and Professional Activities
– Book chapter and theses – 5– Peer reviewed journals – 4– Conference and workshop proceedings – 26– Other – 17
• Frequent reviewer and regular member of OC/TPC of the most prominent conferences in the field– SenSys, IPSN/SPOTS, EWSN, DCOSS, EMNETS, INSS, SIGCOMM, DATE, …
• Excellent contacts to the leading researchers in the field, academic and industrial, European, Asian and US
• Regular media presence with research results
ETH Annual Report Features BTnodes
Research Accomplishments – The Bottom Line
• Maybe not the most impressive publication list but predominantly at the premiere conferences.
• An impressive worldwide network of people, contacts and consultancies.
• A systems research agenda based on collaboration across disciplines and institutional borders.
• Successful set of end-to-end systems implementations allowing sound reality checking.
• Initiated and now leading a new research focus on wireless embedded systems research at ETHZ including solid funding.
FUTURE AGENDA
Trends in Information and Communication
New Applications andSystem Paradigms
Large-scaleDistributed Systems
CentralizedSystems
NetworkedSystems
Internet
Beyond the proof-of-concept of 1st Generation Wireless Sensor Network Research
• More an “art” than a coordinated effort yielding predictable results
• First generation research provided the proof-of-concept– Performance is poor– Causes are not fully understood– We are often lacking the
necessary (scientific) rigor
[Phil
Levis
, Sta
nfo
rd]
Reliable Wireless Networked Systems?
• The ability of a system or component to perform its required or designated functions under stated conditions for a specified period of time.
• Key issues: complexity – resources – power – interaction
• More so: The way we go about solving the problems encountered
• Non-iterative design process for networked systems– Predictable results– Reduction/capping of efforts required– Increasing the quality of the design, e.g. “correct-by-construction”
• Full end-to-end validation of all processes– Today cumbersome and error prone – if at all possible
A Vision of Future WSN Design Methodology...
• (Live) back annotation into the design space– „Closed loop“ system design– Including live data from simulation, testbeds, deployments
• Allowing to refine and validate architectural decisions, models, algorithms and implementations...
APP
COMMSENS OS
Continuous
Integration
Testbed
Infrastructure
Physical Characterization
Design Flow
A Facetted Yet Focused Systems Research Agenda
• System architecture, software and models– TinyOS, BTnodes, BTnut– Low-power protocols– Design-space exploration, formal metrics,
real-time
• Test and validation methodology– DSN testbed, deployment tools– Multi-context tracing– Unit testing, formal models
• Sensor network deployments– Design methodology, platform kit– Smart Buildings, PermaSense
Architecture
Testing
Applications
My Research Should…
• Be of value to and used by researchers and practitioners alike.
• Meaningful results at the forefront of technology.
• Enable sustainable solutions with impact and longevity.
• Empower architects and designers with the right principles, abstractions and tools for achieving a specified functionality in deterministic time.
• My work so far is stepping stones in this direction. We are starting to see the actual sweet spots. But there is more mileage ahead.
Embedding My Work In Sweden
• Existing interactions– SICS (Thiemo Voigt, Adam Dunkels)– UU (Per Gunningberg, Christian Rohner, Bengt Jonsson, Wang Yi)
• Many interesting partners in Engineering Sciences and Information Technology – further application partners in other departments
• WISENET VINN excellence center– Topics of interest: Node integration & energy, networking, wireless
protocols, application projects– Interdisciplinary focus with integration of devices (MEMS, packaging),
sensors and batteries is an asset to my own work/network
• My contributions– 7+ years experience from involvement in NCCR MICS – Active international network
Educational Goals
• Fundamentals & theory– Solid foundation in embedded & real-time systems, system
architecture, design automation, algorithm design, signal processing, wireless and mobile systems
• Hands-on experience– Labs, group projects (e.g. Lego Mindstorms based 1st year students)– Integration of students into real-life research efforts
• Active discourse on current (hot) and emerging topics– Cross-disciplinary reading seminars on recent (local) work– Knowledge of peers– Fostering interaction and dialogue with experts from academia and
industry– Scientific writing, presentation, researching and reviewing skills