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How would the phone know the wifi signal is coming from your right?
by drewzero1 5y ago
How would the phone know the wifi signal is coming from your right?
- gpm 5y agoBecause we also know about the car going in the other direction, and you came closer to it. Hypothetically. Or if gps errors are correlated between phones.
- im3w1l 5y agoGood point. Ok what about this then: Check the relative strength of cars travelling opposite way compared to same way.
- drewzero1 5y agoI suppose if there are enough cars, and if you have access to the wifi and location data for enough of the phones, it might be possible to determine someone's relative location by triangulating the signal strength from multiple vantage points. So my phone by itself doesn't know the direction of the signal, but two or more other phones could combine our location data with relative wifi signal strength and potentially get a better idea of where the signal is coming from. (I had forgotten that we were talking about an entity that potentially knows the data from all the devices, not just one endpoint.)