RFID Pet DoorRFID Pet Door

Andrew ParrAndrew ParrConner RocoleConner Rocole

Ben PeetzBen PeetzEric SturmEric Sturm

EE 494, Fall 2006EE 494, Fall 2006

IntroductionIntroduction

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.

RequirementsRequirements ReliabilityReliability

Simple User InterfaceSimple User Interface

Safe for the PetSafe for the Pet

ScalableScalable

ImplementationImplementation

1.1. RunRun

• Locked

• Enter Only

• Exit Only

• Enter or Exit

2.2. ManualManual

3.3. ProgramProgram

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 OverviewProject Overview

Project Components Project Components

Microcontroller – Atmel AVRMicrocontroller – Atmel AVR Antenna – 134kHzAntenna – 134kHz RFID Reader – Atmel Reader ICRFID Reader – Atmel Reader IC Door/Lock - SolenoidDoor/Lock - Solenoid User Interface – LCD, 4 buttonsUser Interface – LCD, 4 buttons Power Section – Wall and BatteryPower Section – Wall and Battery Board Layout – Professional PCBBoard Layout – Professional PCB

Mini-Project 1Mini-Project 1Microcontroller FunctionalityMicrocontroller Functionality

Demonstration RequirementsDemonstration Requirements: : The The microcontroller should recognize the input from a microcontroller should recognize the input from a press button switch and illuminate an LED when press button switch and illuminate an LED when the button is pressed. the button is pressed.

Tasks to be performedTasks to be performed: : Develop the C code Develop the C code necessary to initialize the microcontroller to necessary to initialize the microcontroller to accept inputs and respond accordingly to them.accept inputs and respond accordingly to them.

Necessary EquipmentNecessary Equipment:: Atmel Atmega16 Atmel Atmega16 microcontroller, Evaluation board, LED, Press microcontroller, Evaluation board, LED, Press button switch.button switch.

Approximated Time TableApproximated Time Table:: 2 weeks 2 weeks Team MembersTeam Members:: Andrew, Conner Andrew, Conner

Mini-Project 2Mini-Project 2Antenna ConstructionAntenna Construction

Demonstration RequirementsDemonstration Requirements:: The The antenna should transmit a signal at 134 antenna should transmit a signal at 134 KHz that is viewable on a spectrum KHz that is viewable on a spectrum analyzer. analyzer.

Tasks to be performedTasks to be performed:: Construct a Construct a 47H antenna with a Q factor less than 20. 47H antenna with a Q factor less than 20.

Necessary EquipmentNecessary Equipment:: Copper wire, Copper wire, Tape, Spiroband, Screened antenna lead.Tape, Spiroband, Screened antenna lead.

Approximated Time TableApproximated Time Table:: 2 weeks 2 weeks Team MembersTeam Members:: Eric, Ben Eric, Ben

Mini-Project 3Mini-Project 3RFID Reader FunctionalityRFID Reader Functionality

RequirementsRequirements:: The RFID unit should The RFID unit should generate an output signal that is viewable generate an output signal that is viewable on an oscilloscope when a tag is read. on an oscilloscope when a tag is read.

Tasks to be performedTasks to be performed:: Become Become familiar with RFID reader so that it can familiar with RFID reader so that it can recognize and RFID tag. recognize and RFID tag.

Necessary EquipmentNecessary Equipment : : RFID reader, RFID reader, bread board, antenna, RFID tagsbread board, antenna, RFID tags

Approximated Time TableApproximated Time Table: : 3 weeks 3 weeks Team MembersTeam Members:: Eric, Ben Eric, Ben

Mini-Project 4Mini-Project 4RFID Unit / Micro CommunicationRFID Unit / Micro Communication

RequirementsRequirements: The microcontroller : The microcontroller should illuminate an LED when the RFID should illuminate an LED when the RFID reader scans a valid tag. reader scans a valid tag.

Tasks to be performedTasks to be performed:: Develop an Develop an interface between the RFID reader and the interface between the RFID reader and the microcontroller. microcontroller.

Necessary EquipmentNecessary Equipment:: RFID reader, RFID reader, RFID tags, microcontroller, and evaluation RFID tags, microcontroller, and evaluation board.board.

Approximated Time TableApproximated Time Table:: 3 weeks 3 weeks Team MembersTeam Members:: Everyone Everyone

Mini-Project 5Mini-Project 5Microcontroller User InterfaceMicrocontroller User Interface

Demonstration RequirementsDemonstration Requirements:: The The microcontroller should output a visual microcontroller should output a visual display to the user on a LCD screen. display to the user on a LCD screen.

Tasks to be performedTasks to be performed:: Develop code Develop code to enable microcontroller to display to enable microcontroller to display characters on a LCD screen. characters on a LCD screen.

Necessary EquipmentNecessary Equipment:: Microcontroller, Microcontroller, Evaluation board, LCD screen.Evaluation board, LCD screen.

Approximated Time TableApproximated Time Table:: 2 weeks 2 weeks Team MembersTeam Members:: Andrew, Conner Andrew, Conner

ExpensesExpenses

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 TimelineProject Timeline

Current StatusCurrent Status Mini-Projects 1 and 2 are completeMini-Projects 1 and 2 are complete

Mini-Project 3 is in progressMini-Project 3 is in progress

Mini-Projects 4 and 5 are scheduled Mini-Projects 4 and 5 are scheduled to begin in 1-2 weeksto begin in 1-2 weeks

Q & AQ & A

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