Robotic Artificial Intelligence Toy (R.A.T.)

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Robotic Artificial Intelligence Toy (R.A.T.)

• Presented byShane R. Bright, Erik R. Brown,
• Wing-Seng Kuan, Micheal T. Singleton
• April 24, 2001

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Project Objectives
The main objective of the R.A.T. is to entertain
a pet for an extended period of time without
causing injury to the pet, humans, or the
surfaces and objects in the area where the toy
might be used.
Secondary Objectives Healthy Exercise for
Pet Durability Customer Satisfaction
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Contributions
Shane Bright Web page development, final design
report, sonar and servo interfacing, motor
controller designErik Brown Web page
development, technical writing, GUIDE control
program, motor controller designWing-Seng
Kuan Robotic/Circuitry design, motor controller
design, voltage doublerMicheal T.
Singleton Chassis design, motor design, voltage
doubler, final integration and assembly
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Specifications
Dimensions (max) 5.5 x 2.5 x 2.75Weight
(max) 9.1 oz.Materials plastic, rubberPower
Requirement 4 AAA batteries, 9 V
batteryFeatures obstacle avoidance and memory
in a small, fast packagePerformance
Specs Speed 10 ft/s Sight reacts to objects
within three feet of sensor Battery
Life standard life of alkaline
batteries Surfaces smooth floors Cost of
prototype 300.00Cost (production) 29.99
Operation costs price of batteries
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Design Considerations
1. GUIDE program is easily modified 2. Safety of
R.A.T. in presence of humans and pets 3. Easy to
manufacture 4. Ethical questionwill the R.A.T.
replace other pets? 5. The R.A.T. should be
reasonably priced for the pet owner. 6. Will
the R.A.T. affect the relationships between
people and pets?
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Timeline
1/10/01 First meeting, established boundaries,
outline for the semester
1/22/01 Adopted OOPic as microcontroller for
project, first chassis design failure
2/14/01 MiniZ Race Car chassis adopted as RAT
body
2/27/01 Critical Design Review
3/24/01 OOPic and sonar interfaced, sonar
program implemented, chassis assembled
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Timeline
4/07/01 OOPic interfaced with servo, GUIDE
v1.0 was coded implementing
servo, motors, and sonar.
4/21/01 OOPic program GUIDE v1.1 implemented,
correcting flaws in guidance system
4/22/01 Motor Controller for chassis completed,
initial tests show voltage to be too low
to power motors
4/23/01 Chassis modifications are made to
mount sonar and OOPic devices. Motor
Controller prototyping and Voltage
Doubler failed in implementation.
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Design Requirements

• The R.A.T. must
• Avoid becoming trapped by obstacles or the pet.
• Move in a way that interests the pet.
• Be durable enough to endure the contact that
  might occur with obstacles and/or the pet.
• Avoid displeasing sounds and visual features.
• Meet minimum requirements for battery life,
  safety, and functional lifetime.