Indoor positioning systems (IPS) locate people or objects inside a building using radio signals, geomagnetic fields, inertial sensor data, barometric pressure, camera data or other sensory information collected by a smartphone device or tablet.
Beacon, Analytics, Location, Sensors
http://indooratlas-ltd.bintray.com/mvn-publicindooratlas-android-sdkcom.indooratlas.androidhttps://github.com/IndoorAtlas/android-sdk-examples https://www.youtube.com/watch?v=onm3sqQ4LMo
com.indooratlas.android.sdk
ipsws\.indooratlas\.com