RFID: When You Don't Even Know It's There by Andy Reed
RFID (Radio Frequency ID) enables wireless data capture and transaction processing. Our last column discussed proximity applications, used primarily for access control. This time, we'll take a look at what are broadly defined as vicinity, or long-range applications, used for product tracking,... A central computer can control access, not just to locked doors but to other items or products in a home: computers, a liquor cabinet, dangerous tools (power saws, etc.), or even a gun cabinet. ... The central computer processor tracks all loans and returns, giving the library real-time knowledge...