The software will check for software updates to Web Updater first and will install them automatically if it finds any.Then it will search for map and feature updates, and finally, it will install those updates on the Garmin GPS unit.Its mobile navigation app detects significant portions of GPS traces that do not conform to the existing map, as determined by state-of-the-art Viterbi map matching.When there is sufficient evidence collected, map inference algorithms can automatically update the map.After Garmin rebooted its model line and Tom Tom released new models, we did a fresh round of testing.
We tested the most promising GPS units across 1,000 brutal miles of rural, suburban, and urban orienteering and the Garmin Nüvi 2539LMT is our new pick for best car GPS.
According to the company, each Tele Atlas map updated – of which there is at least one per quarter – includes “thousands of miles of new roads and Points of Interest”.
It also takes into account changes and corrections made through Tom Tom’s Map Share service, where users can notify the company of any incorrect mapping they have come across.
The Crowd Atlas server aggregates exceptional traces from users with the navigation app as well as from other, large-scale data sources.
From these it automatically generates high quality map updates, which can be propagated to its navigation app and other interested applications.