Undergraduate Category: Engineering And Technology Degree Level ...

Report 7 Downloads 125 Views
Undergraduate   Category:  Engineering  And  Technology   Degree  Level:  Bachelor’s  of  Science  (ME)     Abstract  ID#:  282

 

G OOD C OLLAR

Steven Corliss, Eric Corti, Jesse Mitchell, Joe Pellicano Keith Sproat, Andrew Gouldstone, Ph.D.

G OAcknowledgments   AL

  A BFinal   S T RP Arototype CT

To develop a remote, on-board, non-invasive device that rapidly triggers positive reinforcement to facilitate canine training activities for trainers of all skill sets.

This project describes the creation of an on-board (attachable), remote, treat-dispensing apparatus, intended to help amateur and professional dog trainers teach behaviors through positive reinforcement methods. This device integrates multiple mechanical and electrical sub-assemblies in a compact housing that easily fits on a dog collar. It weighs less than half of a pound and measures approximately three inches in diameter. The mechanical and electrical design of the product functioned as intended in both lab testing and trials with live animals. The device was tested on two trained house dogs, and a treat was successfully released approximately 82% of the time. Dogs responded positively during training, appearing to associate the treats released from the device as a reward for their correct behavior.

I NTRODUCTION / B ACKGROUND

Desired Functionality

•  •  •  • 

Introduces stimulus On-board Remote Modular

S P E C I F I C AT I O N S

Down to 2.5” OD 18 treats, 2 rings

• 

3.5” disk diameter

Hinge & snap-lock lid

• 

Training Techniques

• 

An NU student with PTSD was training his own service dog and desired a cheaper alternative than professional services. He asked a senior capstone group to create a remote device capable of positively reinforcing desired behaviors during training, as opposed to shock collars which punish undesired behaviors.

§  Karma Dog Training. “The Four Principles of Operant Conditioning.” §  Mary R. Burch, Ph.D. and Jon S. Bailey, Ph.D. “The Basic Principles of Behavior” in How Dogs Learn. §  Whitehead, Sarah, Bradley Viner, Beverley Cuddy, and Karen Sullivan. Dog The Complete Guide §  Email conversations with field experts (Leah Schwartz, Brian Hare, Virginia Dare, John Bailey) Bridget Smyser, Ph. D. Kevin McCue Virginia Dare & Leah Schwartz Avi Kurlantzick Rich Ranky Nick Johnson & John Golden QD Vision, Inc. Maddy, Bailey & the Cassola family

Durable: “Dog-proof” Lightweight: Less than 2 lbs Consistency: One treat every time

Linear Tester

REV  03  

o  Proof of flicker mechanism function o  Allowed for optimization of treat cavity depth o  Testing of various torsion springs

REV  05  

REV  02  

REFERENCES & ACKNOWLEDGEMENTS

Wireless: Remote activation

3.0” OD Laser-cut silicone membrane Slotted, filleted underside

●  Operant conditioning ○  Positive reinforcement ●  Same techniques, different applications

REV  01  

§  §  §  §  §  §  §  § 

•  • 

3 concentric rings •  30 counterbored holes • 

Rapid: 1-2 second delivery

C OObserva(ons   NCLUSIONS

M Prototype   E T H O D : TIimeline T E R A T   I O N •  • 

Efficacy: Adds value to training

REV  04  

Alpha Prototype o  Strictly mechanical operation o  Observe rotational ejection o  Verify spring force required

Beta Prototype

• 

Adjusted cavity diameter and depth

• 

Two more flanges

• 

Designed for mechanism testing

• 

40% of original thickness

o  External implementation of electrical components o  Testing of Arduino code

Observations •  Comfortable •  Acclimation time •  Sound association

F UConclusions   T U R E C O N S I D E R AT I O N S

R EFinal   S U LTPSrototype : F I N A  L P R O T O T Y P E Electrical Components •  •  •  •  •  •  • 

RF Transmitter / Receiver Solid State Relay Voltage Regulator Feedback Switches ATtiny85 DC Motor Batteries

Conclusions •  Success ✓   •  Viable Training Tool

Mechanical Components

Final Assembly

v Improvements

o  Decrease size o  Battery compartment o  Ergonomic for dog o  Modularity (different dogs)

Treat Disk Rotation o  DC Motor drives worm and worm wheel o  Spins shaft and rotates disk

Outer Housing o  Recesses for electrical components o  Bosses for securing flicker platform & motor o  Protection for worm drive

Flicker Platform o  Flicker pivots o  Recesses for feedback switches o  Enclosures for coin cell batteries

Added Capabilities o  Charging port o  Deliberate sound o  Durable-consumable model

•  Design for Manufacturing o  Simplify part designs

•  Plastic parts – injection molded •  Aluminum – CNC machined •  Silicone – laser cut