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RFID is a radio frequency identification. It is a wireless identification system consisting of tags with unique identity and the readers. The reader reads the tags within its range and identifies them..
it is radiofrequency identity card it has a small resonant circuit which is excited by the identifier machine which excites the circuit to find its radiofrequency component and to find the person corresponding to it....
well it stands for radio frequency identification, here radio freq. is used to identify, locate n track assets, animals n objects, the whole RFID sys. contains 3 major components (Tag, antenna n reader)
yeah all the above describes the system well and for an addition there are two types of it: first is passive which need no power on tag (only on reader) and takes its power from the recieved signal , and second is active which needs an onboard power suplly at the tag and this makes tags transmission more powerfull and tag can do more processing like grabbing room temperature using attached sensors and sending it along with the tag ID.
RFID is a radio frequency identification. It is a wireless identification system consisting of tags with unique identity and the readers. The reader reads the tags within its range and identifies them..
der is a tradeoff between range and cost..
normal read range varies with d frequency on which u r operating
with increase in frequency d penetration power decreases but higher data rates can be achieved
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