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?