You will no longer be seen on the wrong side of the street in Google Maps – Google is fixing one of the most common GPS problems.
According to Google, one of the big problems of current geolocation systems is your performance in the calculation On which side of the street or in which building are we?, something that is even more emphasized when we’re in Cities or very dense urban areas.
But with a little ingenuity and support from that 5G technologyGoogle could Solve these problems in one way on its Pixel 5 and Pixel 4a (5G).
3D mapping of buildings to improve GPS accuracy in cities
In its official blog for developers, Google explains What was the ambitious plan? for which the company wanted to end this Precision problem of geolocation systems.
This solution is already integrated into the software of the Pixel 5 and 4a (5G) with the Android update from December
To do that, google has to first identified the origin of this problem, that’s the fact that GPS systems are designed so that Signals come through the line of sight of satellitesand in the cities signs said come through reflections since buildings block them.
“The GPS chip assumes the signal is in sight, so it introduces an error in calculating the excess path length that the signals have traveled.”
Hence the solution consists of Create three-dimensional models of buildings in some of the world’s largest cities. In this way, if we are using the GPS of our mobile phone, while going through the activity detection API built into Android, the system will recognize that we are pedestrians and if we are in one of the following areas more than 3,850 cities supported through this system the device downloads the 3D models of the buildings –Weighing approx. 20 MB– which contain the Algorithms for eliminating GPS inaccuracies.
Most current Android phones already have the Version 1 of this 3D mapping systemthat is theoretically capable of Reduce this problem by 50%. With the Version 2.0Google claims that inaccuracies have been reduced by 75%.
Although this improvement is initially exclusive to the Google Pixel phones with 5GGoogle is aiming to bring this feature All phones with a version equal to or greater than Android 8 in 2021.