GPS (Global Positioning System) is a system to tell the location coordinates (X, Y, Z) by speed and time The receiver uses messages received from satellites to determine the satellite positions and time sent. The GPS concept is based on time and the known position of specialized satellites. The working principle of From GPS satellites orbiting around the Earth signal back to the receiver of the surrounding world. Such as telephone, mobile and car.


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https://th.wikipedia.org/wiki/ระบบกำหนดตำแหน่งบนโลก
http://wut007.blogspot.com/2012/07/gps.html

The benefits of installing GPS

  • GPS tracking anddetermines the exact location of a person, a vehicle
  • Fleet Management Services
  • can works in all weather
  • Find directions to any location
  • Calculate the speed of the vehicles
  • Check the status of equipment and machinery. Such as opening / closing a car door
  • Strategic logistics management
  • Sports such as in practice to measure speed, distance, calories burned, calories