Mobile Hybrid Positioning - eLBeS 2010

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Mobile Hybrid Positioning - eLBeS 2010

  1. 1. Mobile Positioning eLBeS 27 April 2010 Rikard Windh Co-founder Combain Mobile AB
  2. 2. Mobile Positioning Opportunity: Creates a new paradigm of services (Navigation, Nearby Search, Location Based Social Networks and more) Picture: http://farm3.static.flickr.com/2162/2400891654_541e53b93a.jpg
  3. 3. Mobile Positioning Challenge: Always have a good position - indoor and outdoor - without draining your battery! Picture: http://farm3.static.flickr.com/2162/2400891654_541e53b93a.jpg
  4. 4. 7 Positioning Methods
  5. 5. 1. GPS Picture: http://soundofscience.files.wordpress.com/2009/03/gps_satellite_nasa_art-iif.jpg • Good outdoor accuracy (15 m) Text Text • Limited/none indoor coverage • Drains your battery
  6. 6. 2. • Learning clients / War Driving • Good coverage in urban areas (50 m) • Requires WiFi enabled mobile • Requires a WiFi database • Databases: SkyHook - 100M, WiGLE - 20M Picture: http://www.skyhookwireless.com/howitworks/coverage.php
  7. 7. 3. Cell-id • Always available - no extra power • Indoor and outdoor coverage (1000 m) • Requires a Cell-id database and a cell-id API in the mobile • Databases: Location-API - 6M, OpenCellID - 0.6M Picture: http://upload.wikimedia.org/wikipedia/commons/a/ae/Telstra_GSM_and_NextG_tower.jpg
  8. 8. 4. Network positioning • Picture: http://www.ericsson.com/solutions/positioning_methods/lbs.shtml Works on all mobiles • Indoor and outdoor coverage (100m - 1000m) • Requires access/agreement with operators/aggregators
  9. 9. 5. Spatial Triggers • Location triggers stored in the network • Triggers fired when: 1 - entering an area, 2 - leaving an area, 3 - close to another mobile • No need to continuously pull the location. Wait for the trigger to be fired instead. • But: Limited/not supported by operators today. Picture: http://www.ericsson.com/solutions/positioning_methods/lbs.shtml
  10. 10. 6. NFC • Accuracy - 10 cm! • Requires the user to actively wave or hold the mobile device close to the tag • Requires pre-installed tags and NFC enabled phones Picture: http://noknok.tv/wp-content/uploads/2009/04/nokia-6216-lassic-near-field-communication-nfc-device-1.jpg
  11. 11. Tag: Google Maps, Slakthuset, Malmö 7. 2D Barcodes • Accuracy: 10 cm - 50 cm • Requires a camera phone, a barcode app, and the user to take a photo.
  12. 12. Compare the 7 Positioning Methods
  13. 13. Accuracy vs Battery Life Accuracy (meters) Battery life (days) GPS GPS WiFi WiFi Cell-id Cell-id Network Network 0 250 500 750 1,000 0 3.75 7.50 11.25 15.00
  14. 14. Coverage vs Phone Availibility Coverage Availibility GPS Outdoor-Rural Medium WiFi Out/Indoor-Urban Medium Cell-id Out/Indoor High Network Out/Indoor Operator dependant NFC Tagged area Low 2D Barcodes Tagged area High
  15. 15. Which one to choose? ? Picture:http://chroniclingthecuse.files.wordpress.com/2009/03/question_mark_naught101_011.jpg
  16. 16. Hybrid Positioning (4/7) GPS + WiFi + Cell-id + Network Good accuracy in Urban & Rural areas, both Indoor & Outdoor Long battery lifetime High number of supported phones http://www.psdgraphics.com/wp-content/uploads/2009/09/check-and-cross-icons.jpg
  17. 17. Hybrid Positioning (6/7) Accuracy: 10 cm - 1 km Combine positioning methods to have both good indoor and outdoor coverage, plus longer batter life time!
  18. 18. White paper • Purpose: To give you a kick-start in your LBS project • Released today. • Pick a hardcopy or send me an email rikard@combain.com
  19. 19. Thank you! rikard@combain.com www.twitter.com/mrwindh
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