How the Nintento Wii’s motion plus technology has opened the door to a wave of low cost high-tech people tracking services

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  • 1. Indoor navigation using motion sensors? Ian Sheret 3rd December 2009
  • 2. Inertial sensors
  • 3. Inertial sensors Accelerometer senses: • Acceleration • Gravity
  • 4. Inertial sensors Gyro senses: • Rate of rotation
  • 5. Inertial sensors Data fusion to get: • Orientation • Motion tracking?
  • 6. Navigation
  • 7. Navigation
  • 8. Navigation
  • 9. Navigation Inertial navigation processing
  • 10. Navigation Inertial navigation processing
  • 11. Navigation Navigation processing Information about: • Motion • Environment
  • 12. Motion information
  • 13. Motion information Pedometer
  • 14. Motion information Pedometer Foot mounted sensor
  • 15. Environment information
  • 16. Great! Except... • Absolute fix? • Power consumption? • Map matching reliability? • Accuracy? • Value?
  • 17. Ways forward Niche Mainstream applications applications
  • 18. Ways forward... Niche Mainstream applications applications
  • 19. Power management:
  • 20. Power management: Minimum sensors to maintain solution Logging, process on demand?
  • 21. Accuracy:
  • 22. Accuracy: Step Foot counting mounted
  • 23. Accuracy: Step Hybrid Foot counting approaches mounted
  • 24. Gyros and smartphones
  • 25. Opportunities • Where battery doesn’t matter • Highly constrained environments • Crowd-sourcing