1. Location Tracking for Indoor Environments Student ID ： Q56971025 Reporter ：王滋農 Reporter ：王滋農

2. Problem definition (1/2)  GPS for outdoor environment  accelerometer for decreasing the error of GPS AAMPL: Accelerometer Augmented Mobile Phone Localization

3. Problem definition (2/2)  Location tracking Outdoor environment Indoor environment → GPS → ?

4. Current Solution  Indoor environment Using beacons -- triangulationUsing beacons -- triangulation Infrastructural Beacons Mobile Users (x, y, z) d1 d2d3 (x1, y1, z1) (x2, y2, z2) (x3, y3, z3) (x4, y4, z4) (x5, y5, z5)

5. My idea  One Gyro and two accelerometer sensors (no beacon) (no beacon) Gyro on the chest : angles Accelerometer on the foot : distance Accelerometer on the pocket : sitting Gate Starting point 1:200 walkingstanding sitting