Sensor-driven indoor localization with android #bcs2

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Stephan Linzner

Barcamp Stuttgart 2 presentation about indoor localization methologies with sensor equipped mobile devices.

Bildung Technologie Business

The city is indoors…but location matters! #bcs2: Sensor-driven indoor positioning

Motivation ,[object Object],[object Object]

However there is no appropriate solution for confined spaces yet.

But 20 million sensor powered handsets were sold in 2008.

And heavy passive RF-infrastructure in urban areas #bcs2: Sensor-driven indoor positioning

Todays device sensors ,[object Object],[object Object]

Gyroscope ,[object Object],[object Object],Quelle: market.android.com #bcs2: Sensor-driven indoor positioning

Positioning System Quelle: IEEE Communications Magazine Feb 2002, Indoor Geolocation Science and Technology #bcs2: Sensor-driven indoor positioning

Marker Based Positioning ,[object Object]

Benefits ,[object Object],[object Object],[object Object],#bcs2: Sensor-driven indoor positioning

Fingerprint Positioning ,[object Object],[object Object]

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Sensor-driven indoor localization with android #bcs2

1. @onlythoughtwork @drewenut

2. The city is indoors…but location matters! #bcs2: Sensor-driven indoor positioning

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

9. ‏ GSM

10. Bluetooth

11. GPS

12.

13. Electric Compass

14.

15. Positioning System Quelle: IEEE Communications Magazine Feb 2002, Indoor Geolocation Science and Technology #bcs2: Sensor-driven indoor positioning

16.

17. Scene analysis

18. Patterns on floors, walls…

19.

20.

21. GSM

22. Bluetooth

23.

24. Estimate user position by matching a RF sample with the radio map #bcs2: Sensor-driven indoor positioning

25.

26. Passive (no infrastructure) ‏

27. Long term fading

28.

29. Training phase Quelle: IEEE Communications Magazine Feb 2002, Indoor Geolocation Science and Technology #bcs2: Sensor-driven indoor positioning

30.

31.

32. Environmental infrastructure

33. CPU-intensive

34. Specialized hardware

35. Positioning on server #bcs2: Sensor-driven indoor positioning

36. Multi-Path-Propagation #bcs2: Sensor-driven indoor positioning

37.

38. Gyroscope

39.

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.

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.

48. Connected cell

49. Neighboring cell

50. BCHH channel #bcs2: Sensor-driven indoor positioning

51.

52. Enviroment landmarks #bcs2: Sensor-driven indoor positioning

53. Positioning via Bluetooth (2) #bcs2: Sensor-driven indoor positioning

54.