What is geofencing?
Geofencing is a technology that defines a virtual boundary around a real geographic area. This establishes a radius of interest that can trigger an action in a geo-activated phone or other portable electronic device.
Geofencing enables the generation of automatic alarms based on the defined coordinates of a geographic area. A simple example could be an email or text message that is automatically triggered and sent to a user's cell phone when that user's child comes home from school. In this example, the geofence would be a geographic virtual boundary that surrounds the house. When the child's mobile phone enters this area, an email is automatically sent to the child's parents through a geofence enabled app on the phone.
Triggers don't have to happen due to physical presence. It would be possible to set up a geofence area around a neighborhood and send alerts about garbage days based on a schedule entered into a geofence enabled app by the local government or debt collection company.