Study of Activity Tracking through Bluetooth Low Energy-Based Network

Figure 22

Probability map over 1 m² area of beacon positioning w.r.t true position 4 with estimation approaches: (a) nearest scanning device, (b) hyperbolic, (c) weighted hyperbolic, (d) circular, and (e) proposed algorithm. Darker red indicates higher probability whereas lighter color indicates lower probability. True locations of the test point are marked by a green dot.

(a)

(b)

(c)

(d)

(e)