radio-controlled duck decoy
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Radio-Controlled Duck DecoyMay 03-25
April 30th, 2003
Team Members: Faculty Advisors: Jason Freerksen Prof. Robert Weber Kooi-Tjek Lau Prof. Clive Woods Evan Smith Vladimir Stevanovich Client: Kyle Wetjen Senior Design
Presentation Outline
• Terms Used• Acknowledgement• Problem Statement• Operating Environment• Users and Uses• Assumptions and Limitations• End-Product Description• Accomplishments• Approaches
Presentation Outline (continued)
• Project Definitions• Activities• Human and Financial Budget• Evaluation of Project Success• Commercialization• Recommendations for Further Work• Lessons Learned• Project Risks and Concerns• Closing Summary
Terms Used and Defined
• DNR – Department of Natural Resources• RF – Radio Frequency• Tx – Transmitter of radio signal• Rx – Receiver of radio signal• PIC – Programmable Integrated Circuit• PWM – Pulse Width Modulation
Acknowledgement
A & M Waterfowl, Inc.
www.therealdecoy.com
Problem Statement
General Problem Statement:• Users desire complete remote control of decoy• Decoy must look, act, and sound like a real duck
Problem StatementGeneral Solution-Approach Statement:• Motorized duck decoy• RF Tx/Rx system• Speed controller• Steering control system via servo and rudder• Long lasting battery packs• Garage door Tx/Rx system for sound activation• Programmable sound chip• Sound amplification system• Compact audio speaker
Operating Environment
• In water such as ponds and small lakes• Hunters will hunt in all weather conditions• Decoy will likely be dropped or abused
Intended Users and Uses
Intended Users:• DNR personnel• Duck researchers• Duck hunters
Intended Uses:• Studying ducks and their migrating patterns• Hunting ducks for sport• Attracting ducks for any other reason
Assumptions and LimitationsAssumptions:• 2-channel RF Tx/Rx system enough to give life-
like movement to decoy• Noise of motor will be negligible• Batteries will provide sufficient power• The RF Tx/Rx system will have minimal
interference from motor
Assumptions and Limitations (cont.)
Limitations:• Limited experience with wireless technology• Limited time and funding for project• Decoy must be the same size as a real duck
End-Product Description and Deliverables
• Decoy that looks, acts, and moves like a real duck• Easy to control using RF Tx/Rx controllers• Moves forward, reverse, and turns• Battery powered with minimal power
consumption for long operating time• Sound reproduction implemented external to
decoy
Present Accomplishments
• Decoy finished according to specifications• Sound reproduction finished according to
specifications• Project completely finished
Approaches Considered
• Decoy– Standard vs. Motorized
• RF Tx/Rx Controls– Preassembled vs. Design from scratch
• Drive System – Dual motor vs. Motor/Rudder System
Approaches Considered (cont)
• Speed Controller– Design H-Bridge/PIC vs. Speed Controller
• Sound– Pneumatic vs. Electronic
• Power Supply– Rechargeable vs. non-rechargeable
Project Definition Activities
• Decoy that looks, acts, and moves like a real duck
• Easy to control using RF Tx/Rx system• External sound implementation due to
legality issues
Research Activities
• Duck Decoys• RF Tx/Rx systems• Speed Controllers• Power consumption• Batteries
Design Activities
Design Constraints:• Power consumption• Size of duck decoy• Testing and operating conditions• Buoyancy
Design Activities
Implementation Activities
Problems encountered and how they were overcome:• Converting PWM from receiver to supply motor• Reducing interference from the motor• Receiving unusable parts
Suggestions for improved implementation:• Use standard decoy and add motor• Use a more compact and/or efficient Tx/Rx system for
sound reproduction
Testing and Modification Activities
• 2 Channel RF Tx/Rx controller– Both channels working properly
• Duck decoy’s motor and speed controller– Proportional movement, forward and reverse
• Servo and Rudder– Rudder steers in both directions via the servo
• Sound chip, amplification system, and speaker– Plays and amplifies recorded sound
• Fully assembled decoy– Forward and reverse movement along with steering capabilities
Other Significant Project Activities
Significant accomplishments (not covered elsewhere):• Obtained free motorized duck decoy• Researched hearing frequency of waterfowl
Final status of major components of the end product:• Motor Control (100% done)• Steering Control (100% done)• Sound Reproduction (100% done)
Personnel Effort
020406080
100120140160
Evan Smith VladimirStevanovich
Kyle Wetjen Kooi-TjekLau
JasonFreerksen
Hou
rs
Financial BudgetFinancial Requirements
0102030405060
Dec
oy
Mot
or
RF
syst
em
Spe
edco
ntro
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Ser
vo
Rud
der
Gar
age
door
Sou
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ip
Am
plifi
er
Spe
aker
Bat
terie
s
Pos
ter
Labo
r
Items
Cos
t ($)
Original Estimated Cost Final Cost
Evaluation of Project Success
Milestones: • Finalize design (fully met)• Order and receive parts (fully met)• Assemble and test steering system (fully met)• Assemble and test sound system (fully met)• Assemble all functional parts (fully met)• Test and finalize complete product (fully met)
Commercialization
• Estimated cost to produce product:– Single product: $125– Mass production: $50
• Estimated street selling price:– Estimated at: $90-$100
• Potential market for product:– DNR employees– Duck hunters and researchers
Recommendation for Further Work
• Commercialized version of the product– A&M Waterfowl could potentially
commercialize the radio-controlled swimmer duck decoy with only a few additional parts
Lessons Learned
Things that went well:• Ordered and received parts ahead of schedule• Motorized duck decoy donated
Things that did not go well:• Received decoy that was Styrofoam and unusable• Project specifications were illegal
Lessons Learned
Non-Technical Knowledge gained:• Communication is most important part of a team project• Research every aspect thoroughly before coming to any
decisions
Technical Knowledge gained:• Understanding PWM• Wireless communication
Risk and Risk Management
Anticipated Potential Risks:• Parts breaking inside decoy• Duck sinking during testing• Electrical parts getting wet • Improper assembly of parts• Change of project specifications• Ordered parts do not arrive on time• Loss of team member
Risk and Risk Management
Anticipated Risks Encountered to Date:• Project specification was illegal
Unanticipated Risks Encountered to Date:• Received the wrong parts (unusable parts)
Closing Summary
• Problem: There currently is a shortage of remote controllable duck decoys available on the market for hunters and DNR rangers
• Approach Used: Start with a motorized decoy and add remote-control functionality
• Resulting Solution: Low cost, high performance decoy that definitely has a market in hunting retail stores
Questions/Comments?
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