RFID Pet Door

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RFID Pet Door
EE 494, Fall 2006

• Andrew Parr
• Conner Rocole
• Ben Peetz
• Eric Sturm

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Introduction
To design and build an automated system to
regulate and monitor a pets movement into and
out off a structure with minimal human
intervention.
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Requirements

• Reliability
• Simple User Interface
• Safe for the Pet
• Scalable

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Implementation
An RFID tag attached to a pets collar will be
read by a scanner when the pet is in the
proximity of the door. If the scanned pet has
been programmed by the user to have access to the
door, the Pet Door will then unlock. This will
allow the pet to open the door and pass through
it. Once the door returns to a rest position, the
door will be locked until another approved pet is
scanned. The system will operate in three basic
modes.

• Run
• Locked
• Enter Only
• Exit Only
• Enter or Exit
• Manual
• Program

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Project Overview
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Project Components

• Microcontroller Atmel AVR
• Antenna 134kHz
• RFID Reader Atmel Reader IC
• Door/Lock - Solenoid
• User Interface LCD, 4 buttons
• Power Section Wall and Battery
• Board Layout Professional PCB

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Mini-Project 1Microcontroller Functionality

• Demonstration Requirements The microcontroller
  should recognize the input from a press button
  switch and illuminate an LED when the button is
  pressed.
• Tasks to be performed Develop the C code
  necessary to initialize the microcontroller to
  accept inputs and respond accordingly to them.
• Necessary Equipment Atmel Atmega16
  microcontroller, Evaluation board, LED, Press
  button switch.
• Approximated Time Table 2 weeks
• Team Members Andrew, Conner

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Mini-Project 2Antenna Construction

• Demonstration Requirements The antenna should
  transmit a signal at 134 KHz that is viewable on
  a spectrum analyzer.
• Tasks to be performed Construct a 47H antenna
  with a Q factor less than 20.
• Necessary Equipment Copper wire, Tape,
  Spiroband, Screened antenna lead.
• Approximated Time Table 2 weeks
• Team Members Eric, Ben

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Mini-Project 3RFID Reader Functionality

• Requirements The RFID unit should generate an
  output signal that is viewable on an oscilloscope
  when a tag is read.
• Tasks to be performed Become familiar with RFID
  reader so that it can recognize and RFID tag.
• Necessary Equipment RFID reader, bread board,
  antenna, RFID tags
• Approximated Time Table 3 weeks
• Team Members Eric, Ben

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Mini-Project 4RFID Unit / Micro Communication

• Requirements The microcontroller should
  illuminate an LED when the RFID reader scans a
  valid tag.
• Tasks to be performed Develop an interface
  between the RFID reader and the microcontroller.
  
• Necessary Equipment RFID reader, RFID tags,
  microcontroller, and evaluation board.
• Approximated Time Table 3 weeks
• Team Members Everyone

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Mini-Project 5Microcontroller User Interface

• Demonstration Requirements The microcontroller
  should output a visual display to the user on a
  LCD screen.
• Tasks to be performed Develop code to enable
  microcontroller to display characters on a LCD
  screen.
• Necessary Equipment Microcontroller, Evaluation
  board, LCD screen.
• Approximated Time Table 2 weeks
• Team Members Andrew, Conner

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Expenses
ATMEL STK500 Development Board 108.00 TI 2000
Micro RFID Reader 134.2K 64.00 TI RFID Card
Transponder 15.06 Atmel ATmega16
Microcontrollers 13.12 Philips IC RFID HITAG
Reader 5.50
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Project Timeline
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Current Status

• Mini-Projects 1 and 2 are complete
• Mini-Project 3 is in progress
• Mini-Projects 4 and 5 are scheduled to begin in
  1-2 weeks

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Q A

• ?