Wi-fi and RFID used for tracking

Wireless tracking systems could be used to protect patients in
hospitals and students on campuses, backers of the technology said.

The combination of Radio Frequency Identification (RFID) tags and 
wi-fi allows real-time tracking of objects or people inside a wireless
network.

Angelo Lamme, from Motorola, said tracking students on a campus could
help during a fire or an emergency.

"You would know where your people are at any given moment," he said.

Marcus Birkl, head of wireless at Siemens, said location tracking of
assets or people was one of the biggest incentives for companies,
hospitals and education institutions to roll out wi-fi networks.

Both firms were at The Wireless Event, in London, this week selling
new products in the area of so-called real-time location services.

Siemens is pushing a complete system, developed with Finnish firm
Ekahau, which can track objects or people. 

[...]

Full article at "BBC"
http://news.bbc.co.uk/1/hi/technology/6691139.stm

---