Hide and Seek

Abstract

GPS lets you determine the position of an object down to single-centimeter accuracy as long as the object is outside. Inside buildings satellite navigation does not work well through doors and walls. Measuring the signal strength of Wifi bacons with known location may give a hint about own position. The signature of the signal is too complicate for an analytic approach. Based on public available demo data machine learning interpret the fingerprint of the signals. With sufficient accuracy it locates a room within a floor of a building.