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Transcript of Indoor Localization
Bluetooth Low Energy
Our choice : Estimote
How iBeacons work
Region monitoring using UUID
Can wake up app
How iBeacons work?
Implement iOS app
Use BLE 4.0 technology
Use smartphone sensors
Plot user's path in a room
Apply various promotions zones with only 3 beacons
Implement web interface to manage advertising zones
Develop multiplatform app
Set the signal transmission power
Water absorbs the Bluetooth signal
Computation of point's coordinates
Beacons distance estimation
M7 iPhone 5S processor? Open source ?
Computation of acceleration rate
New step detection ? min then max threshold
Determine step distance -> 0.5 m
Get the angle from
the north (compass)
Approximate error of 0 to 20 degrees
Computation of the average position until .....
... a step is detected
Estimate the new position
Correct the position with trilateration moving average (if available)
Beacons hardware availability
Precision (vs iPhone)
Not precise enough
If user is out of range ? (only 70m^2)
10 % accuracy
30 % accuracy
precision, margin of error
Live demo ?
Bluetooth logo : beacons
Big grey dot : trilateration positions
Small red dot : last position
Small dot : previous positions
Red flash : new step