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SEMINAR ON RFID TECHNOLOGY

SEMINAR ON RFID TECHNOLOGY. CONTENTS. Introduction to RFID (Radio Frequency Identification) Systems Types of RFIDs Advantages of RFID over Barcodes Problems of RFID Systems Applications Future of RFID Conclusion Bibliography. What is Radio Frequency Identification (RFID)?.

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SEMINAR ON RFID TECHNOLOGY

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  1. SEMINAR ON RFID TECHNOLOGY

  2. CONTENTS • Introduction to RFID (Radio Frequency Identification) Systems • Types of RFIDs • Advantages of RFID over Barcodes • Problems of RFID Systems • Applications • Future of RFID • Conclusion • Bibliography

  3. What is Radio Frequency Identification (RFID)? Definition: RFID stands for Radio-Frequency IDentification. The acronym refers to small electronic devices that consist of a small chip and an antenna. The chip typically is capable of carrying 2,000 bytes of data or less. • The RFID device serves the same purpose as a bar code or a magnetic strip on the back of a credit card or ATM card; it provides a unique identifier for that object

  4. How RFID works? A Radio-Frequency IDentification system has three parts: • A scanning antenna • A transceiver with a decoder to interpret the data • A transponder - the RFID tag - that has been programmed with information. The scanning antenna puts out radio-frequency signals in a relatively short range. The RF radiation does two things: • It provides a means of communicating with the transponder (the RFID tag) • It provides the RFID tag with the energy to communicate

  5. RFID tags do not need to contain batteries, and can therefore remain usable for very long periods of time • When an RFID tag passes through the field of the scanning antenna, it detects the activation signal from the antenna. That "wakes up" the RFID chip, and it transmits the information on its microchip to be picked up by the scanning antenna.

  6. Types of RFIDs The RFID tag may be of one of two types: • Active RFID tags : They have their own power. • Passive RFID tags: They do not require batteries, and can be much smaller and have a virtually unlimited life span.

  7. RFID Network

  8. How RFID looks?

  9. Advantages of RFID over Barcodes • Barcode readers require a direct line of sight to the printed barcode; RFID readers do not require a direct line of sight to either active RFID tags or passive RFID tags. • RFID tags can be read at much greater distances; an RFID reader can pull information from a tag at distances up to 300 feet. The range to read a barcode is much less, typically no more than fifteen feet. • RFID tags are typically more rugged, since the electronic components are better protected in a plastic cover. RFID tags can also be implanted within the product itself, guaranteeing greater ruggedness and reusability. • Barcodes have no read/write capability; that is, you cannot add to the information written on a printed barcode. RFID tags, however, can be read/write devices

  10. Applications of RFID . RFID is currently used for a broad array of purposes. Some current uses include: • building access control • toll payment (EZ Pass) • library book tracking • animal identification Animal tracking tags, inserted beneath the skin, can be rice-sized • human identification • The anti-theft hard plastic tags attached to merchandise in stores are also RFID tags. • Transponders are used to track shipping containers, or heavy machinery, trucks, and railroad cars.

  11. Problems of RFID Systems • RFID systems make use of the electromagnetic spectrum, they are relatively easy to jam using energy. • Reader collision occurs when the signals from two or more readers overlap. The tag is unable to respond to simultaneous queries. • An RFID tag cannot tell the difference between one reader and another. RFID scanners are very portable; RFID tags can be read from a distance.

  12. RFID in India • Aerospace: In the aerospace sector too, RFID tags are being increasingly used to maintain and track critical aircraft parts. • RFID tags would be mandatory on containers or pallets of food, clothing and weapons repair parts shipped to DoD depots.

  13. Statistics

  14. Future of RFID • RFID is such an intriguing concept to businesses because it can cut inventory and supply chain costs through its implementation. • The ultimate goal is for RFID to replace barcodes. RFID allows for individual product identification, not for product line identification like barcodes. Stores can also track when items leave the store allowing them to easily replace items when one is purchased. • The store can identify individual foods that are going to spoil, allowing it to locate the items and either put them on sale or dispose of them. Obviously RFID is a great tool for the supply chain and companies wishing to better track their products.

  15. Conclusion RFID is a costly system that offers some great advantages over barcodes. Even though the technology still hasn’t matured, the opportunity for immediate and dramatic improvements in customer service and productivity outweigh the negatives. Improvements in standardization have already occurred, with several additional standards under development. Improvements in tag life expectancy and durability have improved substantially in the past few years.

  16. Bibliography • http://www.rfidc.net/rfidevolution/ • http://www.technovelogy.com • http://www.electronics.howstuffworks.com/rfid • RFID Technology by Roman Espejo

  17. THANK YOU

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