Human Localization in the Home by Using Floor-Mounted Acceleration Sensors

Indoor location based services have become attractive given the rapid advances in information communication technologies (ICTs), especially sophisticated cyber physical system (CPS) technologies, as the global positioning system (GPS) fails within buildings/homes. Therefore, this paper proposes an indoor human location recognition method that uses the vibration signals captured by floor-mounted acceleration sensors. This method eliminates the carrying of devices while protecting personal dignity. Experiments that use 3 acceleration sensors placed on a wooden floor show that the location of a person can be recognized within 2 m from a sensor module with more than 70 % accuracy. An enhanced version offers accuracy of more than 85 %. These results verify the feasibility of the proposed system.