1. opensensor - information material version 1.0Aalborg University, Mobile Device Group opensensor Part 1 opensensor motivation Frank H.P. Fitzek Anders Grauballe Gian Paolo Perrucci Ben Kroeger Aalborg University Stephan Rein Technical University of Berlin

2. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin overview Wireless Sensor Networks

3. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wireless sensor networks Wireless sensor networks (WSN) are currently an interesting research area The term sensor describes a battery driven small electronic system with wireless communication capabilities and the sensoric part (e.g. temperature, light, and many others) WSN consists out of many, sometime even thousands of sensors

4. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wireless sensor networks Field of application for WSN –Military (main source) –Intelligent households –Environmental scenarios –In-Car communication –Gaming –Health Care

5. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wireless sensor networks Research areas for WSN –Routing –Protocol design –Communication architectures –Energy efficient operations –Security –Information storage

6. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wireless sensor networks Pure WSNHierarchical WSN S S S S S S S S S S S S S S S S S S S S S S S S S S S S C C C C S S S S Sensor Cluster Head

7. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wireless sensor networks Literature for WSN Protocols and Architectures for Wireless Sensor Networks Holger Karl, Andreas Willig ISBN: 978-0-470-09510-2 Hardcover 526 pages April 2005

8. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wsn and mobile phones One problem o WSN is the interface to users No display due to battery constraints and sometimes it just do not make sense to have displays. Information is gathered by multiple sensors so which sensor to look at Therefore, the optimal sink of information is the mobile phone for most WSN applications

9. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wsn and mobile phones The convergence of mobile phones and wireless sensor networks has already started Integrated sensoric parts in mobile phones (accelerator, temperature, light, etc) External sensors connected to mobile phones

10. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin gateway approach

11. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin gateway approach Python implementation Some screenshots ACTION = {DISPLAY, SPEECH, SMS, MMS, ALARM} BODY = {any} KEYVALUE = {any} SMS Hello World! +123

12. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin example Sensor placement at car Park situation Communication architecture

13. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wsn and mobile phones External sensors –Jogging equipment for iPod from Nike –External sensor placed in the shoe –Step counter conveys information to the iPod

14. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin wsn and mobile phones Integrated sensors –E.g. jogging equipment from Nokia –Accelerator can be used for other applications as well such as gaming –Limited number of sensors

15. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin integrated sensors New applications for integrated sensors in mobile phones –Derive overall traffic flow for a whole city by partial measurements of some phones (e.g. N95 with GPS) –Weather information by retrieval of temperature of some phones.

16. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin motivation opensensor Integrated sensors are available with some phones already  no problem External sensors are available too but not optimized for the communication with the mobile phone and way to expensive. Use open community to develop and improve the idea of opensensor.

17. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin motivation opensensor The main motivation to build the opensensor is to have a wireless sensor board with the following characteristica: –Low cost and easy to build/extend –Get the basic understanding of DSPs and their programming –Build solid teaching material –Not just WSN but convergence with mobile phones

18. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin motivation opensensor Furthermore the opensensor should be available for all researcher around the world –Hardware: The plans to build the opensensor are freely available –Software: Basic functionality is offered already and maintain in the future –Teaching: All slides are available, so that it should be easy to integrated it into existing lectures or to build course from scratch

19. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin contact Frank H.P. Fitzek Anders Grauballe Gian Paolo Perrucci Ben Kroeger Aalborg University Stephan Rein Technical University of Berlin opensensor@es.aau.dk http://mobiledevices.kom.aau.dk/opensensor/

20. opensensor - information materialAalborg University, Mobile Device Group Fitzek/Rein/Grauballe/Perrucci/KroegerAalborg University and Technical University of Berlin publication F.H.P. Fitzek and F. Reichert. Mobile Phone Programming and its Application to Wireless Networking. 2007. Springer.