Friday, September 25, 2009

What is RFID tags

Tag Memory
Tags may be designed and programmed electronically according to the memory capacity required by the consumer. So, the tailored to clientele requirement tag will be capable of transmitting or storing information as requested by its synchronized interrogator. These are the so called memory tag which can do the dual charge of reading and writing information. Together with this for sure is the variable cost as the more functionality, the more costly would be the label.

Actually, memory labels could be formatted as read only, or it can be write one time and read many times, or read and write depending again on its usage, size, and retention capacity as the need requires. Again, as the label becomes more in abilities, its cost would also increase. Nonetheless, the simpler read only label, though it is cheaper, it is also the safest. What is common among these three different labels is the alternative of whether this will be a passive or an active style that would likewise affect its functionality as well as its price.

Tag Classes
Tags are better understood from the following categories: tag components and functions, tag types designs and use, tag memory, tag classes, and tag placement. The commonly called tags are also called transponders which are actually a part of a radio frequency identification system. Functionality as well as designs is the first two features that are technically regarded in configuring an apt device. Next will be the categorization as well as the assignment that the mechanism will be utilized. As soon as the mechanism is engaged in its destined business, an interrogator will put on the air an indication in the form of radio wave which will readily be responded with tag’s identity inclusive of the objects identity where the tag is attached. Having received the identity of the tag as well as the objects means acceptance of information.
Three categories of tags

1. Passive tag is the form deficient in energy and dependent on the cross-examiner called interrogator to find out its identity.
2. Crossbreed tag is a combination of passive and active, having a built-in, low-energy battery.
3. Active tags are built-in with battery enabling it instantaneous communication with interrogators.

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