Providing Databases for Different Indoor Positioning Technologies: Pros and Cons of Magnetic Field and Wi-Fi Based Positioning

Figure 7

Three screenshots of the Android application used to capture the data. (a) shows the path (green) in which the data capture is going to be done and the “Start recording” button. ((b) and (c)) The current segment where the user is walking is highlighted in blue; the user has to press the button when she/he arrives to the 1st intersection (b) or the final destination (c).

(a)

(b)

(c)