Geofence
A Geofence is a virtual perimeter on a geographic area using a location-based service, so that when the geofencing device enters or exits the area, a notification is generated. The notification can contain information about the location of the device and this information might be sent to a mobile telephone or an email account. Geofencing is used with child location services to notify parents when a child leaves a designated area. Other common applications include the sending of an alert if a vehicle is stolen.
