It probably based on signal dissipation to calculate distance to AP.
A B
x
C
You have stations A, B, C with known locations and client x which moves. If you can measure signals from each base station, you could calculate distance to it. Now you have distances A-x, B-x, C-x and it's a matter of simple math to determine location of x relative to A, B and C. That would probably work just fine in space, but with trees and buildings and cars reflecting and weakening the signal it won't be very precise at all.
Do you mean Wi-Fi AP In theory, yes. You would need several APs in range to compare signals. Considering average AP range is about 50 meters, usefulness of that is questionable in my opinion. Cell networks are more useful for that and I believe it's actually implemented.
Signal point with the coordinate
Bartek
Thanks for reply,....
then do you know how to calculate the coordinate
Lee Hambley
You won't find such information freely available, it's proprietary and most likely patented. For example:
http://www.daconi.net/wifi-pos/wifi-pos.html
A B
x
C
You have stations A, B, C with known locations and client x which moves. If you can measure signals from each base station, you could calculate distance to it. Now you have distances A-x, B-x, C-x and it's a matter of simple math to determine location of x relative to A, B and C. That would probably work just fine in space, but with trees and buildings and cars reflecting and weakening the signal it won't be very precise at all.
ConteZero
Do you mean Wi-Fi AP In theory, yes. You would need several APs in range to compare signals. Considering average AP range is about 50 meters, usefulness of that is questionable in my opinion. Cell networks are more useful for that and I believe it's actually implemented.