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Radio Frequency Identification (RFID)


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Definition

Radio Frequency Identification (RFID)
Technology used to track and identify a person or object by means of radio transmission
Type of data transmitted can vary - information on object, its location, delivery times, weight, destination, etc.
Significantly simplify and make robust, the tracking of parts or part carriers

System Description

RFID Tag (Transponder)


Consists of a microchip and an antenna
Attached to an object to be tracked (vary in size)
Stores information about the object (ID number, kilobytes, dynamic info maintained)
Read only or read/write
Contact-less, Non-line of sight
Read Range: few inches to hundreds of ft.

Applications

Current Applications


Transportation: Toll collection, cargo management, equipment ID, auto-payment etc.
Security: Employee ID tags for office, hotels; nursing homes & hospitals; car keys; video stores and libraries; casino chips/keys; etc.
Manufacturing: Tracking goods through manufacturing process- Automobile, Computer Hardware, etc.

Benefits

An RFID system is the noncontact, non-line-of-sight nature of the technology.
It enhance Efficiency ,traceability of production.
Hundred of tags can be readed in seconds.
They can be combined with sensors.
It not only saves time but also provides real time information & data access to anybody.

Limitations/Issues

The major disadvantage of RFID technology is its high cost .
Any body can access information about anything.
It is possible to compromise an RFID system by wrapping the protected material in two to three layers of ordinary household foil to block the radio signal.

RFID as a ‘Disruptive Technology’

Disruptive technologies


Disrupt the old way of doing things, changing the industry in such a way that previous competitive and business rules do not apply (could, for example render current supply chain ‘bar code’ models obsolete)
Not only create new industries, but eventually change the world; can greatly expand the role of integrators
Bring to market a fundamentally different value proposition than what has been previously available (e.g. bar codes), based on a different set of product/service attributes

CONCLUSION

It is an another TECH REVOLUTION which
will change our lives completely .
And it will be used 24hoursX7days ,like emails.