Download as PDF, PPTX
![RFID in action
[Roussos06]](https://image.slidesharecdn.com/sei-2012-rfid-121012093718-phpapp02/85/An-introduction-to-RFID-6-320.jpg)
![Near-field RFID
• LF (Low Frequency): [30 .. 300] kHz
• HF (High Frequency): [3 ..30] MHz
• Inductive coupling
• Load modulation](https://image.slidesharecdn.com/sei-2012-rfid-121012093718-phpapp02/85/An-introduction-to-RFID-8-320.jpg)
![Far-field RFID
• UHF(Ultra-High Frequency): [300..3 000] MHz
• MW (Microwaves): [2,5 .. 5,8] GHz
• Wave coupling
• Backscatter](https://image.slidesharecdn.com/sei-2012-rfid-121012093718-phpapp02/85/An-introduction-to-RFID-10-320.jpg)
![Tag components
Credits: Rafsec OY, [Sarma01]](https://image.slidesharecdn.com/sei-2012-rfid-121012093718-phpapp02/85/An-introduction-to-RFID-12-320.jpg)
![Threats
[Garfinkel05]](https://image.slidesharecdn.com/sei-2012-rfid-121012093718-phpapp02/85/An-introduction-to-RFID-30-320.jpg)
![Subscribe, Configure, Notify, Publish
[Floerkemeier07a]](https://image.slidesharecdn.com/sei-2012-rfid-121012093718-phpapp02/85/An-introduction-to-RFID-49-320.jpg)
Uploaded byMiguel Pardal
An introduction to RFID
This document provides an introduction to RFID technology for computer science engineers. It outlines RFID tags, antennas, and readers. It describes the different types of RFID systems based on frequency and operating range. Applications in various industries are discussed. It also touches on challenges of RFID middleware for integrating readers, security threats, and concludes that RFID allows physical objects and locations to generate automatic data as part of the Internet of Things.
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An introduction to RFID
- 1. An introduction toRFID (for computer science engineers) Miguel.Pardal@IST .utl.pt June 21st 2010
- 2. Outline •RFID Technology • Business Applications – Software and standards • Challenges • @IST
- 3. Outline •RFID Technology • Business Applications – Software and standards • Challenges • @IST
- 4.
- 5. RFID antennas andreaders
- 6. RFID in action [Roussos06]
- 7. Radio • ISM radiobands – Frequencies differ in world regions • Europe, Americas, and Asia • LF/HF RFID or UHF RFID? – Operating principles are different – Near-field far-field boundary • Lambda / 2 PI
- 8. Near-field RFID • LF(Low Frequency): [30 .. 300] kHz • HF (High Frequency): [3 ..30] MHz • Inductive coupling • Load modulation
- 9.
- 10. Far-field RFID • UHF(Ultra-HighFrequency): [300..3 000] MHz • MW (Microwaves): [2,5 .. 5,8] GHz • Wave coupling • Backscatter
- 11.
- 12. Tag components Credits: Rafsec OY, [Sarma01]
- 13. Manufacturing trade-off • Cost •Range Pick 2 • Functionality
- 14. Tag categories • Passiveor battery-less – Use only power provided by the RFID reader’s signal – Smaller, more flexible – $ 0.20 • Semi-passive or battery-assisted – Use a battery to boost response signal – $5 • Active or battery-powered – Have additional processing capabilities and autonomy because they have more power e.g. sensors – Longer range – $ 30
- 15. Outline •RFID Technology • Business Applications – Software and standards • Challenges • @IST
- 16. Business applications • Track& Trace – Monitor physical goods and keep history • Industries: – Warehousing – Maintenance – Pharmaceuticals – Medical Devices – Agriculture – Food – Retailing – Defense Credits: Sybase.pt
- 17.
- 18.
- 19.
- 22. Outline •RFID Technology • Business Applications – Software and standards • Challenges • @IST
- 23. RFID middleware iseasy… • All readers • Read all tags • At all times Credits: Carlos Perdigão, IST
- 24. NOT RFID middleware is easy… • All readers cannot • Read all tags • At all times Credits: Carlos Perdigão, IST
- 25. Simulation Credits: Carlos Perdigão, IST
- 26. Experimental setup Credits: Nuno Correia, IST & Link Consulting
- 27. Field trials Credits: Schuitema supermarkets, RFID Journal
- 28. Cloud deployment + Reliable network
- 29. NOT RFID security is easy… • All readers should not • Read all tags • At all times Credits: Metro Group, RFID Journal
- 30. Threats [Garfinkel05]
- 31. Security • Privacy – Misbehaving readers, well-behaving tags • Authentication – Well-behaving readers, misbehaving tags • Infrastructure security – Network – Servers • ONS, EPCIS
- 32. Conclusions • RFID isa set of technologies – No “one-size-fit-all” tag and reader • All readers cannot and read all tags at all times – RFID middleware challenges • All readers should not read all tags at all times – RFID security challenges • RFID allows things and places in the physical world to automatically generate data – An Internet of Things
- 33. Outline •RFID Technology • Business Applications – Software and standards • Challenges • @IST
- 34. Completed • Nuno Rodrigues – RFID Logistics integration with Navision ERP • Guilherme Pereira – Open-source RFID track and trace
- 35. Completed • Ricardo Carapeto – Segurança de bagagens inteligentes • Pedro Ferreira – Interface EPCIS para BizTalk • Carlos Perdigão – Rede federada de rastreio de bens
- 36. Ongoing • Miguel Pardal – Scalable and secure Discovery services
- 37. Ongoing • Nuno Correia – RFID Toys - Sistema de controlo de armazém robótico – Fosstrak/Java, Arduino
- 38. Proposals • C-Apps: RFIDCapture Applications framework – Componentes (ex. OSGi) – Conveyors, gates, portals, … – C-App “store” • Cloud of Things – Virtualization of RFID software – Fosstrak / Java / Cloud provider – Virtual machine provisioning Credits: trendsupdates.com
- 39.
- 41.
- 42. Other RF technologies Howstuff works PWKits
- 44. Range Credits: C. Floerkemeier, MIT
- 45.
- 46.
- 47. Legal ownership ≠Physical possesion
- 48. Why? Credits: Christian Floerkemeier, MIT
- 49. Subscribe, Configure, Notify,Publish [Floerkemeier07a]
- 50. Internet of Things@ IST