How automotive GPS navigation system works

Posted By: Vikas Shekhawat | Jun 12 2006

We must be encashing on the benefits of automotive GPS navigation systems installed in our cars, but must never have thought how the whole mapping system works. Craig Ellison, in his wonderful article, gets inside the working of an automotive GPS navigation system. Interestingly, GPS manufacturers have outsourced the mapping and POI (Points of Interest) data collection and maintenance job to two companies, Navteq and Tele Atlas.

gps mapping

Actually, the companies employ vehicles mounted with high-resolution cameras to capture data and images with respect to restricted-speed zones, HOV lanes and highway splits. These images are further stored with special codes or geocodes to be retrieved during navigation.

Check out another related article published in Autoblog to get more deeds on the topic.

Thanks: Joel Arellano, Craig Ellison, John Neff

Technoride :Via: Solnew