Tracking Devices And Geofencing

By Jason A Smail | Technology

Nov 02

Geofencing in its simplest form is the ability to create virtual fences or imaginary boundaries on a map and to be notified when devices with tracked location services move within or outside the boundaries defined by virtual fences. For example, you will receive a notification when your child leaves school. This technology is the output of area services, a system that could be found in tracking devices, watches, smartphones, and computers. If you are wondering what is geofencing you could read more at But to put it simply geofencing is a location-based service that uses GPS (Global Positioning System), RFID (Radio Frequency Identification), Wi-Fi, cellular data, or a combination of the above.

In daily use, the tracking device can take the form of a computer, smartphone, or even watches. It can also be a device specially designed for a fairly wide variety of situations. Other examples of this technology are GPS trackers in pet’s collars, inventory tracking devices in warehouses like RFID tags, and the navigation systems in vehicles like trucks and cars. The location of the tracked device is compared to the virtual geographic boundary which is usually created on a map inside the geofence application. When a tracked device crosses a geofence boundary, it triggers an app-defined event. This event may be to send notifications or perform functions such as turning lights on or off, heating, or cooling in a designated geofenced zone.

So, how geofencing works? Geofencing is used in advanced location-based services to determine when a tracked device is within or has exited a geographic boundary. To perform this function, the geofencing application must be able to access real-time location data sent by the tracked device. In most cases, this information in the form of latitude and longitude coordinates comes from the GPS-enabled device. The coordinates are compared to the boundary defined by the geofence and generate the trigger event to be within or outside the boundary.

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