The SensorsLab at CTI ( Sotiris Nikoletseas U. of Patras and CTI ( 2 nd ProSense Technical Workshop, Santorini, Greece, September 2008

CTI at a glance Established in 1985 –headquarters in Patras, Greece Non-profit organisation, supervised by the Greek Ministry of National Education. Closely affiliated to the Computer Engineering and Informatics Department of the University of Patras –integrated environment for scientific research and for the design and development of products and solutions –financially and administratively independent research institution, following private sector regulations 250 people (170 scientists)

CTI’s objectives –To conduct basic and applied research in hardware and software technology, networks –To design and develop products and services –To support all forms of education and training –To develop technology and to transfer know-how –To provide consulting, planning and administration services, in matters dealing with the Information Society.

CTI’s “applied” activities –Educational Technology –Networking Technology –e-Government –Stock Market Applications –Telematics Center –Further Education and Training –e-Learning –Security

Research Unit 1 “Foundations of Computer Science, Relevant Technologies and Applications” –Parallel, Distributed, Mobile and Wireless Computing –Algorithmic Issues of Communication Networks and the Internet –Cryptography and Security –Algorithmic Game Theory & the Economics of the Internet and the Web –Algorithms Design, Analysis & Engineering (Approximation, Online, Distributed, Parallel) –Probabilistic and Combinatorial Techniques –Complexity (Computational, Social, Complex Systems)

The SensorsLab activities Design, evaluation and implementation of efficient algorithms Development of experimental sensor networks, Software development (application development environments, simulators, middleware) Development of demos and applications.

Personnel 2 profs 3 post-docs 4 PhDs 5 PhD Students several visitors many undergraduate students

Implemented Algorithms -Data propagation, -Energy optimization, -Power-saving schemes, -Obstacle avoidance, -Tracking of moving entities, -Mobility management.

Implemented Systems simDust: a C++ lightweight, high level simulator (emphasis on very large sizes) WebDust: a general and flexible application development environment ShareSense: a p2p overlay for multiple, heterogeneous sensor networks TRAILS: an ns-2 extension focusing on mobility and high network dynamics

Current Equipment 20 Mica2 nodes 19 TelosB nodes (with humidity, temperature and light sensors embedded) 12 MTS310 sensor boards (light, temp, mic, 2-axis accelerometer, magnetometer) 2 MTS420 (humidity, barometric pressure, temp, light, 2-axis accelerometer, GPS) 2 MTS400 (without GPS) 3 MIB520 USB programming boards 3 MIB600 Ethernet programming boards 2 Stargate Netbridges

Recent additions 45 Sun SPOTs (15 gateways, 30 sensor nodes) - 32-bit CPU, 180MHz, 512KB RAM, 4MB Flash - 3-axis accelerometer, temperature, light - Java Squawk (fully Java ME capable) 60 iSense nodes - 32-bit CPU, 16 MHz, 96KB RAM, 128KB Flash - accelerometer, magnetometer, temperature light, camera, - IR, vehicle detection - C++ 1-wire sensors

Cooperations -U. of Geneva -U. of Barcelona -U. of Rome -U. of Paderborn, - U. of Braunschweig and Luebeck - U. of Southern California -University of Ottawa -Berkeley

Relevant Conferences ALGOSENSORS: Algorithmic Aspects of Wireless Sensor Networks ( DCOSS: IEEE International Conference on Distributed Computing in Sensor Networks (

14 The ProSense interconnection test-bed T4.2 Research infrastructure implementation in Skopje (TL: FEEIT) – 8 mm’s T4.3 Research infrastructure implementation in Belgrade (TL: ETF) -8 mm’s T4.4 Interconnection of sensor networks via an overlay network (TL: CTI) – 2 mm’s

15 The Annex description of T4.4 “The goal of this task is to interconnect deployed sensor networks from T4.2 and T4.3 in the WBC centres with the existing sensor networks in the labs of other partners. Furthermore, the overlay network will be enhanced with a web based remote access that will allow access and query of the WBC WSNs from one single place”

16 How to proceed The WebDust system can be used as the interconnection overlay, since: -it fits the Annex requirements -it is easy to use -has been deployed and tested in the near past. A decision should be taken early enough

17 Our Sensor Network Remote Management Environment (WebDust) “The Design of an Environment for Monitoring and Controlling Remote Sensor Networks” in the International Journal of Distributed Sensor Networks (IJDSN), "50 Ways to Build your Application: A Survey of Middleware and Systems for Wireless Sensor Networks", in 12th IEEE Conference on Emerging Technologies and Factory Automation, 2007.

How far to go in the integration implement what we have to and not more awareness/exchange of knowhow/visits minimum: -some common software platform (like WebDust) at the 3 test-beds (Skopje, Belgrade, Patras) -a web interconnection of them prepare for a deeper integration within a future STREP project