GPS TOMTOM

In 2004 the first TOMTOM browser came as hardware. Right now there are 109 navigable countries.

To make this program uses existing street, city maps, orthophotos and satellite images.The maps are redrawn schematically in digital format. This is the first layer. Another layer becomes more above: the names of streets, signs (including information on maximum speed, senses movement of the streets, speed radars, direction boards, etc), the numbers of the streets and points of interest, relief and finally monuments and unique elements.
And to make this work you have to move to the place you are mapping with "Mobile Mapping"

This is a van carrying a diferential GPS, camera 360º, a laser scanner, a 3D gyroscope, an odometer and a computer to record all data should complement the map is used. 
The laser scanner generates a three-dimensional image points of the enviroment by passing the van.
Also is the information transmitted GPS navigators position themselves.


When maps are released to users all participate with their data.Then you can know where it has gone that browser, which took effect or how fast passed. All these data are displayed with a web tool called " Cartopía".
 

This tool checks the layout of the streets and roads according to the map. If there are errors, we proceed to correct them. It also checks wether the directions of movement are correct, if there are roundabouts, even if there are new streets that are not on the map and thanks to a GPS pased by and left the trail.