Why bother with RFID tags, or badges? Simply register with your cell phone.
We can then scan your Wi-Fi and Blue-Tooth signals when you approach the mic.
-- Christian Huitema
'Simply'
What is this simple technology of which you speak? I find that the best we
can do with electronic systems is about 99% and that takes a huge amount of
effort. I have a whole drawerful of bluetooth headsets and thats where they
will stay because none of them works well enough to be useful.
I am fairly sure Christian was being ironic.
:-)
I was. On the other hand, there are systems out there that will, for example,
track customers as they move in a shop. They do that by listening to the
Bluetooth radios. They definitely do not requests the customers to install an
application or pair their devices. An extract form a research paper on the
subject
(http://www.gim-international.com/issues/articles/id1443-Bluetooth_Tracking.html)
asserts that "Bluetooth tracking on the basis of MAC addresses does not
violate privacy law. In fact, it simply makes use of a general Bluetooth
function: scanning for nearby devices. Everyone is free to use this function,
for instance when turning on a mobile phone in a public place." So it must be
just fine.
-- Christian Huitema