Performance evaluation of sensor-fused energy-efficient geofencing for smartphones

Geofencing technology enables various location-based applications by detecting entrance to a predefined region and utilizes the event as a trigger to automatic communication or control of smart devices. In this paper, we implement the proposed geofencing system on Android based smartphone and evaluate performance through field trials. The system is composed of movement detection, variable interval positioning, and positioning method switching. We implement both of a system based on the proposed method, and a system based on Android Geofence function. Evaluation results show that the proposed algorithm reduces number of position fix by 79% compared to Android Geofence function, while maintaining entrance detection delay within acceptable range of 3 minutes.