Those drivers who depend on GPS navigation, using applications such as Waze or Google Maps, always looked with the eternal problem of circulating through the M-30 tunnels, where they were directly blinded with this type of technologies.
However, for a few weeks, the Madrid City Council, through the company Madrid Calle 30, began to display a new Bluetooth electronic beacon system in the tunnels.
That is, this technology already allows navigation applications, such as those mentioned above, continue to work precisely in the subsoil, thus solving this historical problem in circulation by this key route.
To understand it: these beacons are placed every 20 to 40 meters on the sides of the tunnels, on aluminum supports in the cable trays. Each of them is emitting a Bluetooth signal that browsers can detect and locate.
During the configuration, its exact position is assigned to each beacon, so that the different digital maps can end up interpreting at what point in the tunnel the vehicle is located.
That is, unlike satellite signals, which in tunnels, garages and closed spaces fail to cross concrete structures, with these Bluetooth beacons the thing works differently.
The GPS does not work correctly in these environments because it is based on the trilateration of satellite signals, that is, in calculating the position based on the signal received from at least three different satellites.
So the new system installed by the Madrid City Council It is compatible with our favorite navigation applications and is being integrated progressively.
In this way, driving experience is improved and navigation errors are reduced in one of the most critical traffic points in Madrid.
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Tags: Waze, Google Maps, Apps