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zamojski / TowerCollector

The OpenCellID and MLS contributor's app.
Mozilla Public License 2.0
217 stars 27 forks source link

Bts inside rapid transit (metro, subway, underground) #54

Open 532910 opened 5 years ago

532910 commented 5 years ago

Hello.

This is a common crosspost for opencellid, radiocells and mozilla location.

The rapid transit (metro,subway, tube) in my city has a very good GSM, WCDMA and LTE coverage. On the stations and inside tunnels. We have 4 different real (not virtual) operators so there a lot of stations. And there are no GPS or any other GNSS coverage, of couse.

So I can’t fill the database with TowerCollector Radiobeacon or Mozilla Stumbler.

But it will be very-very coll to see on the map where you are during the trip. Moreover, I’m dreaming about the app that will notify me when should I exit (the station before).

I’m ready to fill the database manually: to visit all stations, make records, and publish them associating according to each station.

There is also wifi in each train (wagon), but I see no reason to put it into database as it’s moving.

532910 commented 5 years ago

all refs: https://community.opencellid.org/t/bts-inside-rapid-transit-metro-subway-underground/307 https://groups.google.com/forum/#!topic/mozilla.dev.geolocation/L4Fsv2NEo8E https://github.com/mozilla/MozStumbler/issues/1854 https://github.com/openbmap/radiocells-scanner-android/issues/230 https://github.com/zamojski/TowerCollector/issues/54

zamojski commented 5 years ago

Related issue: https://github.com/zamojski/TowerCollector/issues/33

Lee-Carre commented 2 years ago

@532910

I’m dreaming about the app that will notify me when should I exit (the station before).

brycenesbitt commented 2 years ago

The feature would have to work by manually specifying a LOCATION outside of GPS coverage, and letting the Tower Collector app collect the matching local tower and WiFi signatures.

However watch out: years ago I worked on a project in a metro for radio, and it was one big cell with what amounted to a mile long antenna. You'd have to verify that the metro uses distinct eNB or other radio signatures that uniquely identify the stations.

The coarse location services can DEFINITELY benefit from knowing what station you're at when underground.