Transcript UNC_KenWalter_JPL - Colorado Space Grant Consortium

DemoSat IV
MARVIN
Ken Walter
Zach Armstrong
Casey Kuhns
University of
Northern Colorado
August 10, 2006
MobileAutonomusRoboticVehicleIN
“box”
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Mission Statement & Goals:
To provide a mobile platform for performing scientific research
on uninhabited terrain.
To create a deployment system that can reliably deliver a rover to
a landing site.
To have a reliable rover from which data can be collected.
To create a modular rover and “box” that can be adjusted to fit a
given experiment.
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DESIGN
Payload
- Two connected semi-independent payload boxes
Command Payload
Rover Payload
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Command Payload
Criteria for Opening
– Timer elapsed 3 hours.
– Accelerometer measures 1 G for 10 seconds.
– Temperature measured at or above designated
surface temperature for 10 seconds.
– Sonar detects accepted distance for 10 seconds.
– If values not acceptable, program resets.
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Rover Payload
-
Simple triangular shape
Spring steel and fishing line used with
resistor opener
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MARVIN2
- Lexan frame cut with
water jet
- Sonar Navigation and
video tracking
- 4 independent motorized
wheels
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Rover Design
- Autodesk Inventor 8
Precise mass
calculation
Center of
mass
determination
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Mass and Monetary Budgets
Mass
Rover
552g
Payload Box 1055g
Total
1607g
Monetary
$800
$100
$900
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RESULTS
- The first payload provided us with a reliable opening
system.
- The first payload showed how important having
ground clearance is.
- The second payload provided us with a modular
system.
- The second payload showed us the actual forces
experienced in flight.
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BENEFITS TO NASA
- Modular design
- Simplified deployment system
- Low cost
- Rover deploys from a “box”
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LESSONS LEARNED
- Working together
- Process of design and development
- Importance of testing
- Focused goals and design
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DemoSat IV
Questions?
University of
Northern Colorado