BY:- TAMANNA CHAUDHARY B.TECH, CS, 3RD YEAR RCVGIT , GZB.

•Definition of Definition of RFIDRFID• System DescriptionSystem Description•Operation Operation •ApplicationsApplications•BenefitsBenefits•Limitations/IssuesLimitations/Issues•RFIDRFID as a ‘Disruptive Technology as a ‘Disruptive Technology•ConclusionConclusion

Topics CoveredTopics Covered

Radio Frequency IdentificationRadio Frequency Identification (RFID) (RFID)

Technology used to track and identify a person Technology used to track and identify a person or object by or object by means of means of radio transmissionradio transmission

Type of data transmitted can vary - information on Type of data transmitted can vary - information on object, its location, delivery times, weight, object, its location, delivery times, weight, destination, etc.destination, etc.

Significantly simplify and make robust, the Significantly simplify and make robust, the tracking of parts or part carrierstracking of parts or part carriers

DefinitionDefinition

Two main components to a basic RFID system:

RFID Tag (transponder)

RFID Reader (Interrogator)

System DescriptionSystem 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.

System DescriptionSystem Description

Two classes of RFID Tags, Passive and Active, based on the means in which they receive power:Passive -Power source is provided by the RFID Reader’s generated field -Smaller size tags, must be within close range of reader (~ 2m)

Active -Have an internal power source-Larger, more expensive, shorter life-Longer reading ranges, more memory

System DescriptionSystem Description

RFID Reader (Interrogator)

– Retrieves information from the RFID Tag

– Detects/Activates tag, reads and writes data to tag

May consist of a signal processor, operating system, antenna, virtual memory, and transmitter/receiver unit

–Active or Passive

System DescriptionSystem Description

RFID Reader (Interrogator)

– May be stationary, positioned at strategic points

– May be integrated into handheld unit

– Some of today’s readers can simultaneously read 100-2000 tags per second

System DescriptionSystem Description

HOW RFID WORKSHOW RFID WORKS

RFID System Components

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.

ApplicationApplicationss

Current Applications (cont’d)

Animal tracking: Cattle and other livestock; endangered species;

Athletics: Golf ball identification and tracking; Major track and field events – in marathon runners’ shoes to obtain official start & finish times and to verify track travelled

Global Positioning System (GPS): Accurate location and identity of specific objects using satellites

ApplicationsApplications

Newer and Future Applications

Airport Security/Baggage: Track and identify passengers and airline luggage

Medical: Restricting access; tracking patients and guests with authorized wristbands; tracking babies (to reduce risk of abduction); tracking of medicine and equipment;

Postal Services: Tracking of mail/packages

ApplicationsApplications

BenefitsBenefits

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.

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.

Limitations/IssuesLimitations/Issues

Interference into RFID – two typesMetal Interference – metal packaging may

block/corrupt the signal; some tags have trouble being read when attached to metal objects.

Frequency Interference – may cause problems if the reader is attempting to identify a particular tag surrounded by a number of other tags operating at same frequency; limits specific data that can be extracted.

Interference from RFID into other systems

General observation is that potential for interference into other systems is low and can be mitigated through engineering techniques (e.g. limiting power and duty cycle)

Limitations/IssuesLimitations/Issues

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

RFID as a ‘Disruptive Technology’RFID as a ‘Disruptive Technology’

CONCLUSIONCONCLUSION

It is an another It is an another TECH REVOLUTIONTECH REVOLUTION whichwhich

will change our lives completelywill change our lives completely . .

And it will be used And it will be used 2424hourshoursXX77days days ,,likelike emailsemails..

References

www.new technology.comwww.engineering.comwww.rfidjournal.comwww.frontlinetoday.com

Thank YouThank You