Robert Fleming Vishak Ganesh Vu Tang Viet Nguyen Kevin Clark Automatic Pet Feeder Robert Fleming Vishak Ganesh Vu Tang Viet Nguyen Kevin Clark

Modified automatic pet feeder Wireless beacon on a pet collar http://www.terrificpets.com/pet_supplies/dog/bowls-feeders/auto-feeders/14429.asp http://www.dobiedetectives.com/dogtraproducts.html

Project Overview Product regulates feeding amount for pets Animal controls its feeding cycle Food is kept fresh Modification is from an existing design Product Components

Background Similar products on market Improved existing design

Design Approach

Design Approach

Interconnects ID From To Description C1 Transmitter Antenna, Pin 24 of U1 Receiver Antenna, Pin 28 of U3 418 MHz Radio Signal C2 Valid Transmission, Pin 11 of U3 Input, Pin 3 of U4 Detection of Collar Beacon C3 Pin 5 of U4 Pin 2 of U6 Control Signal @ 3V C4 Relay Electric Motor Closed Circuit Driving AC Motor Inside Pet Feeder

Tradeoffs and Design Considerations Specifications Planned Achieved   Battery Small cell battery 3V Coin Cell, 300-400mAh typical Transmitter Current Draw (On) TBD ~1mA Unique Identifier 16 or 32 bit 10 digit binary Effective Range 3-6 feet 3-6 feet, adjustable Feed Rate .5 oz/20 seconds Motor Power 6 Watt Battery Life 6 Months 100 Hours per Cell Food Capacity 5 Lbs Transmitter Ping Time < 2 minutes ~10 seconds Transmitter Weight < 6 ounces Feeder Mechanism Powered Auger feeder Timer Minute Accuracy Original Timer Abandoned Communication TBD EM Spectrum 418 Mhz Radio

Alternatives RFID IR Cypress Antenna Radio Modem

TXE/RXD 418-KH2

Marketing & Cost Analysis Existing timer based products have limited features: Ergo AutoPetFeeder (right) – ($108) Le Bistro Feeder (left) – ($80) Additional and beneficial features exist with our product http://www.thepetstoreonline.com/ergo-automatic-pet-cat-dog-feeder-waterer.html http://www.petsmart.com/product/index.jsp?productId=2751238

Prototype Costs Item Qty Cost Total Dog Feeder 1 $100 Microcontroller $15 Relay $2 Batteries 10 $0.5 $5 Transmitter $10 Receiver $16 Power Supply Misc Parts  20% $32   $190

Production Costs Development Costs $62,149 Based on: 1,500,000 units Parts Cost 50 Assembly Labor 6 Testing Labor 3 Production Costs 144 Profit 21 12.40% Selling Price $165 Total Revenue $247,500,000 Total Profit $30,781,601

Future Work Battery Life Auger speed Packaging

More than 140 million dogs and cats in the United States- every one of them eats!