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Senior Design Project Proposal Jeff Gilbert Eric Stammen Kristina Lloyd Brian Dellabetta Outline Background How RFID works Different Types Uses Problem Statement Our Proposed Solution RFID Reader Electronic Door Lock Microcontroller Web Site Conclusion How does RFID work?

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senior design project proposal

Senior Design Project Proposal

Jeff Gilbert

Eric Stammen

Kristina Lloyd

Brian Dellabetta

outline
Outline
  • Background
    • How RFID works
      • Different Types
    • Uses
  • Problem Statement
  • Our Proposed Solution
    • RFID Reader
    • Electronic Door Lock
    • Microcontroller
    • Web Site
  • Conclusion
how does rfid work
How does RFID work?
  • Tags are powered by the Radio Signal itself

Image Source: http://en.wikipedia.org/wiki/Image:RFID_backscatter.png

how does rfid work4
How does RFID work?

Different Types

  • Passive
    • Entire operation is powered by radio signal
      • Ex: Seaman’s Center Access Cards
  • Semi-Passive
    • Battery only powers microchip, NOT broadcast
      • Ex: Sensors used to track shipments of goods
  • Active
    • Battery powers microchip AND broadcast
      • Ex: Electronic Toll Collection Systems (I-PASS)
how does rfid work5
How does RFID work?

Uses

  • Electronic Toll Collection (Active)
  • Loss Prevention (Passive)
problem statement
Problem Statement

We are looking to create an expandable access control system with a web interface to allow us to control access for multiple users based on the time of day.

rfid reader tags
RFID Reader/Tags
  • Manufactured by Parallax, Inc.
  • Can act as reader or transmitter
    • We are using read mode only
  • RS-232 Protocol
  • Passive Tags
electronic door lock
Electronic Door Lock
  • Fail Safe/Fail Secure (remains locked during blackouts)
  • 12/24VDC
  • Driven by a 12v relay connected to our microprocessor
  • 2,500 lb Forcing Strength
  • Continuous Duty Operation
microcontroller
Microcontroller
  • Microchip PIC 18F452
  • Onboard Hardware USART
  • Rapid Development
  • Powerful
website
Website
  • Server running Windows Server 2003
  • ASP.NET 2.0
  • MSSQL Server Database Backend
  • Connected to Access Controller via RS-232
  • Dynamic DNS Client
  • Located in close physical proximity to door being controlled
possible enhancements
Possible Enhancements
  • Ability to control access based on time of day
  • Integrate Security Camera footage onto website
  • “Guest Access” where access is granted a set number of times only