Bluetooth questions

[Jonathan Laventhol]

Hi --

 > Is there a bluetooth device and software that is able to track my
 > movement (cellphone) within a room in real time, for example if my
 > cellphones bluetooth is switched on and i am walking around a room can
 > the bluetooth device on my computer detect that i am in a different
 > position as i walk around (can it measure the distance of where i am
 > from the computer and can it handle multiple cellphones)

I don't believe you can do this terribly easily with
Bluetooth but perhaps you'd like to look at this
project with similar goals:

http://events.ccc.de/congress/2006/Sputnik

It worked pretty well.  It doesn't use triangulation
of timing like GPS, it works on signal strengths and
so is a bit approximate.

Regards,
Jonathan.
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