RFID (Radio Frequency Identification) is a network of microchip transponders Karim Benzema Jersey , readers, and system software that makes possible the regular exchange of data.
Each RFID transponder, or a tag, is implanted with an integrated circuit (IC) and an antenna. The IC is encrypted with a unique electronic product code (EPC) that is equivalent to an electronic lineage, setting it apart the tagged item from any others in the world. When a tag comes into the range of an RFID reader Toni Kroos Jersey , proprietary information is passed on through an antenna to a reader that consecutively supplies data to a central computer for processing.
RFID technology was firstly developed for armed forces during World War II, and it has spread out into trade, medical, education, automotive Cristiano Ronaldo Jersey , defense, snack food, and travel industries. It has been expressed as "wireless bar coding," but actually, even basic RFID beats bar coding capabilities by far. RFID scanning can be done from larger distances than those in bar code scanning. RFID eliminates the need for line-of-sight reading that bar coding depends on Sergio Ramos Jersey , and RFID systems can provide a range of up to 90 feet. The Intermec Technologies Corporation, a designer and producer of RFID systems, has signed a contract with the government recently. European RFID systems are still more constrained than those in the U.S.
RFID systems are self-powered and they do not have any human involvement. They can scan several items at a time and furnish fingerprint-specific information about each. RFID systems are generally differentiated by storage and retrieval capabilities (read-only or read-write and passive or active power sources) and by frequency- LF (low frequency), HF (high-frequency), or UHF (ultra-high frequency).
Read-only tags are limited to recovery of stored data Real Madrid Jersey , such as product lot number or an item description. Read-only systems can efficiently streamline basic production and supply chain operations. Read-write labels are designed with both read and write capabilities. In a passive system, an RFID reader produces an energy field that triggers activation and gives power to a tag.
A passive system is not so powerful and somewhat less dependable than an active system. An active system has batteries implanted in tags to power transmission of data between tag and reader. Active systems are more refined than passive systems and offer longer read ranges. They have other features such as temperature sensing and a longer operating life.
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