This document presents an overview of radio frequency identification (RFID) systems. It outlines the key components of an RFID system including tags, readers, and a computer system. It describes how RFID works and provides examples of applications such as inventory management, library tracking, and human/animal tracking. The document also discusses some disadvantages of RFID including interference from metals and potential issues from repeated tag interrogation. It concludes that RFID technology is expanding into new areas and capabilities.

1. RADIO FREQUENCY IDENTIFICATION
Presented By:Mustahid Ali
ECE
4th Year

2. PRESENTATION OUTLINE
To Educate and Inform You
1. About RFID system.
2. Key Components.
3. How does RFID works?
4. Applications.
5. Disadvantages.
6. Future aspects.
7. Conclusion.

3. BRIEF HISTORY
•Invented and used from (Early 1940’s).
•Commercial Operation begun from 1960’s.
•In 1970s developers, inventors, companies,
academic institution and government sectors had
actively worked on RFID .

4. WHAT IS RFID SYSTEM ?
RFID (Radio Frequency Identifier) data collection
system using RF waves for Identifying, Tracking .

5. KEY COMPONENTS
•
TAGS
•
READER
• COMPUTER

6. 1. TAGS

7. 2. READER
•A compact and light weight
hand held device.
•Comfortable to use.
•High storage capacity.
•Multi Functional (such as
sorting, searching, and
reading).

8. 3.COMPUTER & SOFTWARE INFRASTRUCTURE
•Provide
reader
connectivity to other
systems on the network.
•Translate
data
and
transmit to its other
application.

9. HOW DOES RFID WORKS ?

10. APPLICATIONS

11. HUMAN TRACKING
ANIMAL TRACKING

12. IN LIBRARY

13. INVENTORY MANEGMENT

14. DISADVANGES
• Does not penetrate or transmit around metals(iron ,steel).
•Large antennas compared to higher frequencies.
•Reader collision occurs when the signals from two or
more readers overlap. The tag is unable to respond to
simultaneous queries.
•Active RFID tags can be repeatedly interrogated to
wear the battery down, disrupting the system.

15. FUTURE ASPECT
Some vendors have been combining RFID
tags with sensors of different kinds. This
would allow the tag to report not simply the
same information over and over, but
identifying information along with current
data picked up by the sensor.

16. CONCLUSION
RFID technology is taking off in different areas. Due to its
customizable feature and continuing improvement the
communities are beginning to get involved in its
development. It is easy to envision that, the RFID tags
contents will increase in power, prices are expected to
decline and tag will dramatically improve its efficiency,
security and accuracy.

17. RFID IS A SUPPORTING TECHNOLOGY……………….
NOT A COMPETING !!!!!!!!
THANK YOU…………