RFID Pet Door

canolaokahumpkaElectronics - Devices

Nov 2, 2013 (3 years and 7 months ago)

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RFID Pet Door

Andrew Parr

Conner Rocole

Ben Peetz

Eric Sturm

EE 494, Fall 2006

Introduction

To design and build an
automated system to regulate
and monitor a pet’s movement
into and out off a structure with
minimal human intervention.

Requirements


Reliability



Simple User Interface



Safe for the Pet



Scalable

Implementation

1.
Run


Locked


Enter Only


Exit Only


Enter or Exit

2.
Manual

3.
Program

An RFID tag attached to a pet’s 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.

Project Overview

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

Mini
-
Project 1

Microcontroller 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


Mini
-
Project 2

Antenna 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


Mini
-
Project 3

RFID 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


Mini
-
Project 4

RFID 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


Mini
-
Project 5

Microcontroller 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


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

Project Timeline

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

Q & A

?