| Global Positioning SystemHow does the navigation system find the way? The Global Positioning System ensures that the electronic scout makes the correct route recommendations. In this system, which was originally developed for military purposes, 24 satellites orbit the Earth on exact paths. These satellites continuously transmit signals which are detected by the GPS receivers. The signals from three satellites have to be received to determine the exact position within a range of ten metres. The navigation system converts this information into route recommendations in combination with the memorised road maps. The location of stolen vehicles equipped with a special sensor can now also be determined via the Global Positioning System. |