Remote Inspection DeviceASME 2013 Design Competition
Design Team
Jacob WirtzMechatronic
Karl NixMechanical
Kevin GidleyMechatronic
Travis WilliamsMechanical
Faculty Advisor - Dr. Chuen Hsu
Need and Goal
� Need:
� Unmanned inspection device to minimize exposure to radiation after meltdown.
� Goal:
� Develop a prototype to compete in the ASME design challenge.
� Prompted by recent nuclear catastrophe in Fukushima, Japan
Competition Requirements
� Perform tasks
� Navigate around obstacles
within boundaries of
course
� Pick up and drop off
sensors
� Push a button
� Read a gauge
“Must Do” Requirements
� Wireless control
� Battery powered controller
� Device runs on rechargeable batteries
� Device operated via camera system
� Master shut-off button
� Small turning radius
Specifications and Target Values
� Light Weight
� Inexpensive
� Small footprint
� Long Battery life
� Fast Acceleration
� High Agility
� Fast Simulated Course completion Time
� <10kg
� <$1000
� <50cm X 50cm
� Complete course twice with out recharging
� Travel 5 m in < 5 seconds
� Turn radius <10cm
� Complete all tasks in <180 seconds
Communication Block Diagram
Device Description
FABRICATION
Hinged sheet metal lid to hide internals
To reduce cost, all parts manufactured by team.
Scott Brogden a big help in machine shop
Material Selection and Analysis
Baseplate
� Aluminum Honeycomb
Lid and Housing
� Steel sheet metal
Bumper
� ABS plastic
Arm mount
� Aluminum angle stock
Factor of Safety: 3• Ample durability for critical part• Small size makes cost a non-factor in decision
Device in Action
Testing
� Qualitative testing is complete
� In the process of completing quantitative
Engineering Labor, $83,882.90
Raw Materials, $65.39
Purchased Parts, $759.18
Competition and Travel Expenses,
$514.62
Outside Manufacturing,
$120.00 In House
Manufacturing, $300.00
Other, $1,759.19
Budget
Donations
� Donated items:
� Laptop
� Xbox 360 Controller
� Arduino
� Raw Materials
� Labor
Financial Donations $646.39
Donated Parts$365.00
Sponsor Donations$1,000.00
Transportation $354.55
Unique Problems
� Wide angle cameras discontinued
� Altered design to have both cameras facing forward
� Design course did not match description
� Gage lettering measured less than specified minimum of 2cm
� “Flat and level”
Design Solution Merits
� Low Cost
� Stayed within $1000 budget
� Readily available components
� Arduino, cameras, claw, controller, motor drivers, motors, router, voltage regulators, wheels
� Easily expandable control system
� Arduino Mega for additional motor/servo control
� Ethernet Switch for additional cameras
� Ease of use
� Xbox controller – ergonomic and intuitive
Suggestions for the Future
� Increase off-road capability
� Simple solution: Larger ball castors
� Complex solution: Four wheel drive with softer tires
� Upgrade cameras
� Servo pan and tilt
� Zoom or wide angle lens
� Add another camera
� Operate via internet
Acknowledgements
� Scott Brogden
� Design for manufacturability assistance
� Fabrication assistance
� Dave Gislon
� Fabrication assistance
� Dr. Hsu
� General help and support as our advisor
Questions?