Definition of RFID

RFID stands for Radio Frequency Identification the history of RFID is really when in 1945 Russian government used it as a spy tool kit but this story is not as reliable.

RFID is basically an identification system that uses a electrical transponder to store data that can be used to easily spot the item to where the transponder is located, these type of transponders will actively respond to the data about the object. RFID has gaining popularity in this year and a number of industries started to use this RFID technology.

Overview of RFID

RFID is a flexible technology for all kinds remote operation. It has various benefits and far superior than other identification technologies. RFID can work under different platforms and different types of complex environment, it offers a sharper clarity and quality of data integrity and this technology is very hard to copy because of its higher level of security.

This technology is facing lot of challenges from identifying a unique item or person, for ex creating a people tracking system, which requires lot of hardware and software devices.

How RFID works

RFID is attached with various objects, the radio waves communicate those items where RFID is incorporated. The tool can give information about the item, namely what is the item, temperature of that item its travel capacity through a particular area. It is possible to connect RFID to anything such as a tag or label.

Here is a working example

You need a scanning antenna, a decoder to receive and interpret the items information, transponder - the RFID tag needed. A scanning Antenna - This transmits the radio frequency signals in a shorter distance with the help of RF radiation it communicates with the transponder and it also provide RFIT tag with the energy to connect in case of passive RFID tags.

Types of RFID tags

RFID tags are of two types Active and Passive. Practically speaking Passive Tags lack in energy supply compared to Active RFID tags, Active tags are fully charged with power source. Passive RFID is the one where it is mostly used in industries mainly because of the cost factor. Active RFID tags depend upon batter but Passive doesn’t depend upon anything.