Re: RFID tracking and gumstix

Hi Jon,

There was a locating system used in Mr. Gates home.  More or less card 
readers in door jams, pretty low tech.

How about an antenna array to triangulate a low power blue tooth device? 
The more sensitive the antenna array the smaller the transmitter.  Have the 
collar periodically wakeup and transmit.  The battery life would be 
dependent on total transmission time.  I think on the collar side it might 
be best implemented with a low power micro and Bluetooth interface. An Atmel 
of TI micro would fit the bill.

Using a Gumstix on the collar side is a bit overkill, and from what I've 
seen of the PXA255 startup code, I don't see any of the low power features 
enabled.
Perhaps use a Gumstix for each antenna location, and have these 
intercommunicate.  They would be responsible for controlling PTZ cameras, 
and database logging.

How big of an area are you working with?

Regards,
Joel Winarske
Systems Architect
Independent Electronics, Inc. 




-------------------------------------------------------
This SF.Net email is sponsored by the 'Do More With Dual!' webinar happening
July 14 at 8am PDT/11am EDT. We invite you to explore the latest in dual
core and dual graphics technology at this free one hour event hosted by HP, 
AMD, and NVIDIA.  To register visit http://www.hp.com/go/dualwebinar