Geo-fencing: geographical-fencing based energy-aware proactive framework for mobile devices

摘要: Location-based services (LBSs) are often based on an area or place as opposed to accurate determination of the precise location. However, current mobile software frameworks geared towards using specific hardware devices (e.g., GPS 3G WiFi interfaces) for localization possible that device, at cost a significant energy drain. Further, location information is not returned promptly enough. To address this problem, we design framework devices, called Geo-fencing. The proposed observation users move from one another and then stay while. These places can be, example, airports, shopping centers, home, offices so on. Geo-fencing defines such geographic areas bounded by polygons. It assumes people simply fence inside fences coordinated with available communication chips sensors their usage accuracy provided. essential goal determine when check in out effiecient fashion appropriate LBS be triggered. Windows smartphones used prototype Validations conducted resulting traces outdoor indoor activities several months. results show provides effective use LBSs saving devices.