Knowing The History of GPS
The term GPS is certainly’ve often we hear, especially when talking about directions or know the position of the car. Let us match again more detail what exactly is GPS and how it works.
Global Positioning System (GPS) is a system for determining a position on the earth’s surface with the help of satellite signals synchronization. This system uses 24 satellites that transmit microwave signals to Earth. This signal is received by a receiver on the surface, and used to determine the position, speed, direction, and time. System similar to GPS such as the Russian GLONASS, Galileo European Union, IRNSS India.
This system was developed by the U.S. Department of Defense, the full name is NAVSTAR GPS (common mistake is that the NAVSTAR is an acronym, this is wrong, NAVSTAR is the name given by John Walsh, a key policy makers in the GPS program).  this set of satellites maintained by the 50th Space Wing United States Air Force. System maintenance cost is approximately U.S. $ 750 million per year,  including the replacement of old satellites, and research and development.
GPS Tracker or often referred to as GPS Tracking is a technology AVL (Automated Vehicle Locater) that allows users to track the position of a vehicle, or fleet car in the state of Real-Time. GPS Tracking technology utilizes a combination of GSM and GPS to determine the coordinates of an object, and then translate it in the form of digital maps.