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Most electric fences are used for agricultural fencing and other forms of non-human animal control, although they are also used to protect high-security areas such as military installations or prisons, where potentially-lethal voltages may be used. Virtual electric fences for livestock using GPS technology have also been developed.
Nofence is a Norwegian company that makes GPS collars for farm animals (cattle, sheep, and goats) that discourage them from crossing virtual fences. [1] [2] Oscar Hovde Berntsen has been working on the idea of virtual fencing, as an alternative to fixed electric fencing, since the 1990s. [3] Nofence was incorporated in 2011. [3]
A cattle grid on a country road in the Yorkshire Dales Cattle grid on a railway line in northeastern New Mexico Cattle grid in Galong, Australia. A cattle grid – also known as a stock grid in Australia; cattle guard, or cattle grate in American English; vehicle pass, or stock gap in the Southeastern United States; [1] Texas gate in western Canada and the northwestern United States; [2] and a ...
Teach your dog boundaries and set up virtual fences anywhere, regardless of mobile or GPS signals, to allow your dog more freedom while keeping them safe and sound. Halo also provides a 21-day ...
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These virtual fences can be used to track the physical location of the device active in the particular region or the fence area. The location of the person using the device is taken as geocoding data and can be used further for advertising purposes. It is possible to monitor several geofences at once (multiple active geofences).
In Jaén, Andalusia, 4.5 kilometers of virtual fences were installed along a main road in 2022 and in Granada, both physical and virtual fences are being installed on a 20-kilometer stretch.
They can be made from a wide variety of materials, depending on terrain, location and animals to be confined. Most agricultural fencing averages about 4 feet (1.2 m) high, and in some places, the height and construction of fences designed to hold livestock is mandated by law. A fencerow is the strip of land by a fence that is left uncultivated.