Pet GPS tracking devices are designed to monitor the movement of dogs and cats. The improved accuracy and smallness of GPS receivers allows these devices to function as pet trackers. This has become a popular application. They all depend on the GPS or global positioning system.
The GPS is owned by the US government and operated by its Air Force. It provides positioning, navigation and timing services to military and civilian users free of charge. The system consists of three components - satellites orbiting earth, control bases in various countries and, finally, millions of individual GPS receivers.
Hundreds of satellites, owned and operated by many different organizations, are in orbit above earth. Only a limited number of these satellites form the GPS. That system was originally established with 24, and now has at least 32, satellites. Each satellite is strategically positioned in space above earth and moves in a set orbit. Radio signals transmitted by GPS satellites together blanket the earth within latitudes seventy degrees either side of the equator.
Each GPS satellite transmits the precise time plus its exact position. Using signals received from three or more satellites, a GPS receiver can triangulate its location with great precision. The system now permits civilian users to pinpoint their location with great accuracy involving errors of mere tens of meters. The signals allow the GPS pet tracker to calculate its position in terms of longitude and latitude coordinates and its altitude. That calculations is based entirely on the time it takes for the signals to travel from the GPS satellites to the GPS receiver. Clearly, the measurement of time is vital to the whole system. Signal acquisition time can be affected by specific topographical conditions surrounding a device such as heavily wooded areas or deep gorges.
The signals received by a GPS receiver allow it to calculate its own latitude, longitude and altitude. That estimate is based solely on the amount of time, measured in nanoseconds, it took for the radio signals to travel from the satellites to the device. For this reason, the measurement of time is critical to the system.
The GPS pet tracking unit on the pet collar has an extra antenna that receives a signal from the home base station and, in turn, sends a signal back to the base station. That signal is set to define a virtual fence as a circumference around the base station, say, 100 to 400 feet.
In pet lost mode, the light and GPS receiver in the collar are both activated. And the GSM modem send its location to the home base station.
For specialist users, such as geodetic mapping and construction engineers, a variety of GPS augmentation systems and techniques are available to enhance overall system performance over and above that possible using the basic service provided by the system. That higher overall performance includes better signal availability, accuracy and integrity.
Pet GPS tracking units, particularly those for dogs, are built to withstand rugged conditions. Most models can withstand immersion in water for up to 30 minutes to a one meter depth.
Now you never have to worry about losing your pet again when you get the pet GPS collar today! The Pet GPS will allow you to track your pet from any location using the simple system you can learn about now!
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