Sensor-driven indoor localization with android #bcs2
- 2. The city is indoors…but location matters! #bcs2: Sensor-driven indoor positioning
- 3. Motivation Location is the important information in Context Aware Computing. Augmented reality
- 4. Internet of things Today, location for outdoor environments is provided by the Global Positioning System (GPS).
- 5. However there is no appropriate solution for confined spaces yet.
- 6. But 20 million sensor powered handsets were sold in 2008.
- 7. And heavy passive RF-infrastructure in urban areas #bcs2: Sensor-driven indoor positioning
- 8. Todays device sensors RF Frequency Wireless LAN
- 9. GSM
- 10. Bluetooth
- 11. GPS
- 12. (RFID) Inertial Sensing Accelerometer
- 13. Electric Compass
- 14. Gyroscope Optical Camera (QR Codes) Quelle: market.android.com #bcs2: Sensor-driven indoor positioning
- 15. Positioning System Quelle: IEEE Communications Magazine Feb 2002, Indoor Geolocation Science and Technology #bcs2: Sensor-driven indoor positioning
- 16. Marker Based Positioning QR Codes
- 17. Scene analysis
- 18. Patterns on floors, walls…
- 19. Benefits High accuracy Drawbacks Static #bcs2: Sensor-driven indoor positioning
- 20. Fingerprint Positioning Collect all environmental RF information one can get: WLAN
- 21. GSM
- 22. Bluetooth
- 23. Orientation via electric compass Create a radio map for a set of marker points
- 24. Estimate user position by matching a RF sample with the radio map #bcs2: Sensor-driven indoor positioning
- 25. Fingerprint Positioning (2) Benefits Robust
- 27. Long term fading
- 28. Positioning on site Drawbacks Lower accuracy
- 29. Training phase Quelle: IEEE Communications Magazine Feb 2002, Indoor Geolocation Science and Technology #bcs2: Sensor-driven indoor positioning
- 30. Triangulation via TOA Benefits High accuracy
- 31. No training required Drawbacks Multipath fading
- 33. CPU-intensive
- 35. Positioning on server #bcs2: Sensor-driven indoor positioning
- 36. Multi-Path-Propagation #bcs2: Sensor-driven indoor positioning
- 37. Inertial Positioning Uses inertial sensors Accelerometer
- 38. Gyroscope
- 39. Compass (Magnetic field) Dead reckoning (DR) Process of estimating one's current position based upon a previously determined position
- 40. Estimate position by speeds over elapsed time #bcs2: Sensor-driven indoor positioning
- 41. Inertial Navigation Set (IRBM S3) Quelle: wikipedia #bcs2: Sensor-driven indoor positioning
- 42. 6-axis Electronic Compass (G1) Quelle: http://www.phonewreck.com/wiki/index.php?title=Image:T-mobile_g1_main_pcb_2.jpg #bcs2: Sensor-driven indoor positioning Asahi Kasei Microsystems (AKM) AK8976A
- 43. Positioning via WLAN TOA based triangulation
- 44. Received signal strength (RSS) measuring
- 45. RSS values decrease with distance
- 46. Create a radio map with recording fingerprints for a set of locations #bcs2: Sensor-driven indoor positioning
- 47. Positioning via GSM RSS measuring
- 48. Connected cell
- 49. Neighboring cell
- 50. BCHH channel #bcs2: Sensor-driven indoor positioning
- 51. Positioning via Bluetooth RSS measurering
- 52. Enviroment landmarks #bcs2: Sensor-driven indoor positioning
- 53. Positioning via Bluetooth (2) #bcs2: Sensor-driven indoor positioning
- 54. Smart Space Framework Sensor Fusion WLAN
- 55. Bluetooth
- 56. GSM
- 57. Inertial sensors
- 58. QR-Codes
- 61. Open Source #bcs2: Sensor-driven indoor positioning
- 62. Finite State Machine #bcs2: Sensor-driven indoor positioning
- 63. Use Cases Shopping center Product search
- 64. CBR (Consumer Based Routing)
- 65. IBR (Interest Based Routing) Museums Family quiz, navitainment Fairs i.e. CEBIT Car park, airport, subway, concert hall, sewerages
- 66. Emergency evacuation and guidance service Fire, earthquake, terror attacks Context Aware Applications Call Routing
- 67. Light
- 68. Energy Saving #bcs2: Sensor-driven indoor positioning