QR Code Gets Active for Lost Children
Fujitsu developed a new technology that embeds IDs, IP (Internet Protocol) addresses, IP packets (both IPv4 and IPv6), and a "pulse signal" that can be directly sent out to the Internet into non-digital media including printed QR Codes. The technology for example allows for easily sending out notification messages by attaching QR Codes to things, people, etc.
Using this technology, in a few days, the compay will test a system for notifying parents about their lost children at Shima Spanish Village in Mie Prefecture. QR Codes are attached to children -- if they are lost, someone can use a scanner to read their QR codes. The information encoded in the QR Codes includes the email address of a server machine. When it is scanned, the system automatically send email to the server, then the server notifies their parents using SMS.
via ITMedia < QR Code Blog
also: Fujitsu Press release in Japanese