Presence and IntComm WG

[Jamey Hicks <>]

Xiaotao Wu wrote:

> > > 3)    We want to locate the user, not a communications device.  So,
> > >    the scanned device needs to be worn or always carried (e.g.,
> > >    a PDA, a cell/wifi phone.)
> > >      
>
> I think in addition to the active location sensing, we can also do some
> passive location sensing as a complementary method. See
>
> http://www.proactivedisplays.org/UbiComp/jsp/index.jsp
>
> We also did a similar experiment by using RFID in ACM MM'04 conference to
> detect and display current microphone holder.
>
> Joe McCarthy also told us that some experiments that showed
> that the Matrics system (http://www.matrics.com/) works better -- longer
> range, more reliable reads -- than the Alien system,
>
>  
Xiaotao,

Do you have data on range vs. accuracy for either the Alien or Matrics 
system?

Thanks,
Jamey