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Wearable Computers in Education: The Lab of Tomorrow Project

Wearable Computers in Education: The Lab of Tomorrow Project. Theodoros N. Arvanitis, RT, DPhil, CEng, MIEE, MIEEE, FSIM Senior Lecturer in Distributed and Complex Adaptive Systems Distributed & Complex Systems Lab Human Interface Technologies & Educational Technology Research Groups

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Wearable Computers in Education: The Lab of Tomorrow Project

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  1. Wearable Computers in Education: The Lab of Tomorrow Project Theodoros N. Arvanitis, RT, DPhil, CEng, MIEE, MIEEE, FSIM Senior Lecturer in Distributed and Complex Adaptive Systems Distributed & Complex Systems Lab Human Interface Technologies & Educational Technology Research Groups Department of Electronic, Electrical and Computer Engineering, School of Engineering, The University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  2. Wearable Computing in Education: The Challenge • Bridging the gap between pedagogy and front-end technology • Introducing innovation in learning and computational tools • The Lab of Tomorrow project is a European project primarily concerned with capturing sensor data from the local environment, for transmission to some control computer or computers. This is then be used for analysis during science school classes (e.g. high-school physics) • Introducing the concept of wearable computational and on-body sensing devices • Combining the use of “toys” for activity-based learning • An elaborate system of distributed computation, embedded-sensing devices, positioning calculation, and data analysis. • www.laboftomorrow.org IST-2000-25076 International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  3. Lab of Tomorrow: The Vision To contribute towards the connection of science with everyday life activities International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  4. Lab of Tomorrow: The partnership • ICCS/NTUA (Greece) – Co-ordinator • University of Birmingham (UK) - SensVest • National Technical University of Athens (Greece) - Axion Ball and LPS • ANCO (Greece) - Radio Network and SensBelt • University of Dortmund (Germany) - Pedagogical Framework • COREP (Italy) – Interface software • Ellinogermaniki Agogi (Greece) – Coordination of implementation and dissemination • 5 European Schools • Ellinogermaniki Agogi (Greece) • Pininfarina School (Italy) • Helene Lange School (Germany) • Phoenix Gymnasium (Germany) International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  5. Wearable Computing: Our Perspective • A new form of an embedded-computing: • Computing paradigm in contrast to the desktop model • Integrating computers into our everyday activities • Wearable (a definition): • Portable while operational • On-body, embedded in clothes, hands-free • Sensing the environment • Supporting activity in a ubiquitous manner • Always-on (…depending on energy capacity)  International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  6. Wearable Computing: Distributed Embedded Systems Baber, et al., IBM Systems Journal, Vol 38, No 4, 1999 International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  7. Activity-Based Computing • In the past 5 years we have questioned whether the contemporary approach to the design of computer applications can be sustained for future technologies. • Norman proposes that future computers will offer restricted function sets (activity-related), and that people will select the function set most appropriate to their defined requirements. • LoT: Activity-based, user-centred approach in design International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  8. Prototype Wearer Evaluation Technical Evaluation Usability Evaluation Refinement Design process Pedagogical requirement and technology constraints International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  9. SensVest Design Objectives • Develop a wearable system that will measure aspects of real world human performance that can be used to form the basis of a physics lesson • Specifically, measure aspects of energy expenditure and movement • What would be interesting to measure? International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  10. Types of Activity Measures • Heart rate • Commonly used measure of assessing energy expenditure. • linear relationship between oxygen uptake and heart rate at moderate to high intensities of exercise (Astrand & Rodahl, 1986). • Temperature • >75% of the energy utilised during physical work is converted into heat (Astrand & Rodahl, 1986). • Core body temperature increases linearly with oxygen uptake in exercise with the arms and the legs (Nielsen, 1938). • Accelerometry • Can measure the accelerations of body segments (e.g. arms and legs individually). • Can also be used to give a measure of energy expenditure. International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  11. Ergonomics • Be easily mounted in a shirt • Safe to wear • Cause minimal disruption to movement • Simple to set-up • Reliable and produce consistent output • Comfortable International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  12. Fitting Technology to the Body • Heart rate measured with pulse meter (microphone, pressure) • Temperature sensor • Accelerometers (body, arm, leg) • Processor • Display • Radio module International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  13. SensVest evolution 1 2 3 International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  14. Electronics • LCD display • Select sensors & sampling frequency • Shows heart rate and temperature • Calibrate accelerometers • Embedded-system • Mitsubishi M16C microprocessor • 5V power supply – rechargeable • Battery life >16hours • RS232 serial comms • Sensors International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  15. Trials International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  16. Abseiling • Body acceleration recorded when abseiling • Accelerometer trace used to tell a story of physical activity International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  17. Abseiling International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  18. SensBelt • ANCO • Smaller • Wireless • Belt International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  19. Wearability International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  20. Usability • Comfort rating • Failure Modes Effects & Criticality Analysis • Standard engineering approach to define potential for failure • Adapted to human error • Novel application to usability evaluation International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  21. Social Acceptance: Current Issues • Will the use of wearable computers become a symbol of elitism or will they become accepted as part of the daily routine? • Is the integration of computer equipment into the body more acceptable than a wearable computer module? International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  22. Conclusions • Wearable technology used to study human performance and physical laws • Integrated within the curriculum of test school sites • Development approach bridged the gap between technology and pedagogy • Socially accepted: Teachers and students adopted the final design and created new scenarios of use • Further dissemination was encouraged International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

  23. Thank you International Symposium on Advanced Technologies in Education, 13-14 November 2004, Athens,Greece

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