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Alfred William Gallagher MBE (17 May 1911 – 8 August 1990) was a New Zealand inventor, manufacturing engineer and businessman. He is notable for popularising the electric fence . Early life
In a virtual electric fence system, each animal has a collar with a GPS unit which is set to produce first an audible warning and then a shock as the animal approaches a programmable boundary. Pet fences to control domestic dogs have been used since 1973, and the first system for livestock control was developed by Peck's Invisible Fence Co, now ...
An early application of the electric fence was developed in 1936/1937 by New Zealand inventor William "Bill" Gallagher Snr. Built from a car's ignition coil and a meccano set, Gallagher used the device to keep his horse from scratching itself against his car. Gallagher later started a company to improve and market his invention.
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).
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]
Miami Dolphins wide receiver Grant DuBose (88) is carted off the field after being injured during the second half of an NFL football game against the Houston Texans, Sunday, Dec. 15, 2024, in Houston.