In our Universe, there are around
27 artificial satellites. They rotate twice around the globe at the speed of 12,000
miles. Their acceleration is set in such an order that at a time, four of these
satellites are visible in the sky. On the Earth, the purpose of tracking devices is to locate these four satellites, figure out the distance between
them and use the fetched information to transmit information about the movement
of the object in which they are fitted.
Way too back in the history, the
U.S. military used location tracking technology in their military operations. But
now, this marvelous technology is available for use for everybody. People use
it for tracking their spouses, kids, autos, mobile phones and elderly members
of their family. The interesting factor is to see that how this wonderful
technology works. Let’s have a quick overview on that!
Well, it works of a basic
mathematical principle known as 3D Trilateration.
In it, a transponder is fitted in the object whose movement is to be tracked.
This receiver transmits the signals to the satellites. The celestial objects grasp
these signals and reflect them back. Same way, the tracker fetches the signal. In
totality, numerous signals are transmitted back and forth and later on, it is
calculated that how quickly the device under surveillance is moving on the
ground.
The fetched information is monitored
in two ways – either it is tracker at the same time by a distant computer
device or the information is stored in a built-in memory chip and is evaluated
later on.
