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In a place like Ginza or Shinjuku it can be really frustrating to navigate using GPS when you exit a station and your location is off by 20m and your compass is
by johnwalkr 3y ago
In a place like Ginza or Shinjuku it can be really frustrating to navigate using GPS when you exit a station and your location is off by 20m and your compass is also wrong by 90 degrees (I guess because of all the steel buildings). I haven't read up on it in a while but I think local augmentation for GPS, including indoors in malls, etc will eventually arrive once we figure out how to provide it as a public service instead of a bunch of companies competing to make a proprietary services that serve location-based ads.
- myself248 3y agoIsn't that essentially what we landed on with Wigle and the various wifi location engines?
- astrange 3y agoGPS doesn't work in dense cities without specific corrections because it reflects off the buildings, which means you don't know how long a signal took to get to you. QZSS helps but the receiver still has to be designed for this specific situation.