.
search  homepage  organisation  know how  online forum  Links  registration   login functions main page change main data administrate contact logout  about GBT  FAQ & help tool  goals  conditions  email   lexicon/glossary     search :       0 entries  A B C D E F G H I J K L M N O P Q R S T U V W X Y Z   RFID   Radio frequency identification (RFID) is a system for tagging and identifying mobile objects such as store merchandise, postal packages and sometimes living organisms (like pets). RFID uses low-powered radio transmitters to read data stored in a transponder (tag) at distances ranging from one inch to 100 feet. RFID tags are used to track assets, manage inventory and authorize payments, and they increasingly serve as electronic keys for everything from autos to secure facilities. RFID works using small (sometimes smaller than a fingernail) pieces of hardware called RFID chips. These chips feature an antenna to transmit and receive radio signals. So-called passive RFID chips do not have a power source, but active RFID chips do. RFID chips may be attached to objects, or in the case of some passive RFID systems, injected into objects.