Robert Fleming Vishak Ganesh Vu Tang Viet Nguyen Kevin Clark
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Transcript of Robert Fleming Vishak Ganesh Vu Tang Viet Nguyen Kevin Clark
Automatic Pet Feeder
Robert FlemingVishak Ganesh
Vu TangViet NguyenKevin Clark
Modified automatic pet feeder
Wireless beacon on a pet collar
http://www.terrificpets.com/pet_supplies/dog/bowls-feeders/auto-feeders/14429.asphttp://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
ID From To DescriptionC1 Transmitter Antenna, Pin 24 of U1 Receiver Antenna, Pin 28 of U3 418 MHz Radio SignalC2 Valid Transmission, Pin 11 of U3 Input, Pin 3 of U4 Detection of Collar BeaconC3 Pin 5 of U4 Pin 2 of U6 Control Signal @ 3VC4 Relay Electric Motor Closed Circuit Driving AC Motor Inside Pet Feeder
Interconnects
Tradeoffs and Design ConsiderationsSpecifications Planned Achieved Battery Small cell battery 3V Coin Cell, 300-400mAh typicalTransmitter Current Draw (On) TBD ~1mAUnique Identifier 16 or 32 bit 10 digit binaryEffective Range 3-6 feet 3-6 feet, adjustableFeed Rate .5 oz/20 secondsMotor Power 6 WattBattery Life 6 Months 100 Hours per CellFood Capacity TBD 5 LbsTransmitter Ping Time < 2 minutes ~10 secondsTransmitter Weight < 6 ounces TBDFeeder Mechanism TBD Powered Auger feederTimer Minute Accuracy Original Timer AbandonedCommunication TBD EM Spectrum 418 Mhz Radio
AlternativesRFID
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)
http://www.thepetstoreonline.com/ergo-automatic-pet-cat-dog-feeder-waterer.htmlhttp://www.petsmart.com/product/index.jsp?productId=2751238
• Additional and beneficial features exist with our product
Prototype CostsItem Qty Cost Total
Dog Feeder 1 $100 $100Microcontroller 1 $15 $15
Relay 1 $2 $2 Batteries 10 $0.5 $5
Transmitter 1 $10 $10 Receiver 1 $16 $16
Power Supply 1 $10 $10
Misc Parts 20% $32 Total $190
Production CostsDevelopment Costs $62,149
Based on: 1,500,000units
Parts Cost 50Assembly Labor 6Testing Labor 3Production Costs 144Profit 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!