Information Technology

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Radio Frequency identification Tags



Today, solutions based on RFID are becoming increasingly common in various areas of business and life, and the prospects of their use are increasing. According to analysts, the RFID technology has the potential to become one of the most popular and mass technology in the world. Radio Frequency identification Tags is defined as a technical system, which offers the most convenient way to read data without having to touch the data or directly to see, because they are transmitted via radio frequency identification. Such systems can be used in and on various objects, such as goods, animals and even humans. An RFID system is mainly composed of a transponder and a reader, the transponder on a single chip contains important data that it transmits to stimulus from the outside, namely, by the reading device. The trade and logistics companies hope to gain a comprehensive introduction of this system in significant cost savings and greater efficiency. The problem that is see privacy advocates the following: Through RFID systems, the consumer speak for transparent customer is because data on their purchasing behaviour can be stored in theory and processes. The problem is exacerbated by the fact that consumers will notice it does not even have, because the RFID systems as inconspicuous. The technology of RFID systems is still in its possibilities. Neither the proponents nor the opponents can say at the moment, as the technology and other factors will develop in the coming years.


The transponder is composed of the elements "transmit" and "response" together. The transponder can provide one-bit information or receive by means of storage complex data. It can be read and, in certain embodiments, also described. Transponders are often referred to as (RFID) tags.

The simplest variant already in force in the 60's to prevent theft in stores (EAS) developed 1-bit transponder. The coil of the tag, which serves as an antenna, and a capacitor are tuned to the resonance frequency of the receiving device. Outside of the response of the reader, the transponder acts completely passive, is it but in an alternating electromagnetic field of the detector, this removed by induction energy. This energy loss will be registered by the reading device as a 1-bit information, that is, it is reported in this case, only that there is a non-forgiving chip located in the reception area. Defusing the tags is done by the cashier when paying for item. To this end, the capacitor is destroyed by strong magnetization, the resonant circuit is detuned and irrevocably releases when it crosses the gates of no more alarm (IEEE, 2005).

Only through the realization of a transponder with electronic data storage opened up new areas of application. The basic design has remained basically very simple: a microchip as memory serves (and also replaces the capacitor of the 1-bit transponder) and a coupling element are the essential ingredients. By memory now can view information about the tagged object is transmitted via ...
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