Bluetooth questions

[phathwa senene]

Hello, my name is Phathwa and i live in South Africa

I hope that you could answer these questions for me.

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)

Thank you for reading
Regards

Phathwa Senene