Geofence meaning

A geographic zone that is defined for tracking purposes. When a tracking device in a vehicle or a person with a smartphone tracking app enters or leaves a geofence, the device sends a signal via email or texting to a recipient. Geofences can be permanently assigned; for example, a neighborhood geofence enables a thermostat to raise or lower the temperature when people leave home and come back. A temporary geofence might be assigned to ensure teenagers do not stray from a venue such as after being dropped off at a concert.
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A virtual perimeter around a geographic area. Geofences are typically enforced by monitoring the positions of trackable (e.g. GPS-equipped) devices inside or outside the fenced-in area, and determining if they cross the fence.
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Origin of geofence

  • geo- +‎ fence

    From Wiktionary