"inverse" RFId

Clayton H Lewis Clayton.Lewis at Colorado.EDU
Thu Apr 30 16:54:56 UTC 2009

having belatedly looked at the page on in-museum services, I want to  
promote the "inverse" RFId  approach that's mentioned within the RFId  
section...  the idea being that visitors, not stuff in the museum,  
get tagged

seems as if this has powerful advantages with respect to all of the  
alternatives besides image recognition

in particular, visitors don't have to be assumed to bring any device,  
to get some benefit (eg a map of their visit for access later)

if the visitor does have a device, it only has to have web access to  
deliver useful stuff, if one arranges a match up of visitor's device  
to visitor's tag (a possible scenario: on the way into the museum,  
wearing your rfid tag, you pass through an entry big enough only for  
you... on your phone you go to a website that knows which tag is in  
the entry at that moment, and your phone thereby picks up what your  
tag is... thereafter the website content is targeted to you based on  
the location of your tag)

seems to me all of the alternatives, including image recognition,  
make considerably heavier tech demands on what visitors have to have

Clayton Lewis
Professor of Computer Science
Scientist in Residence, Coleman Institute for Cognitive Disabilities
University of Colorado

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