Week 5 Status Updates

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Week 5 Status Updates

• 6/23/08 6/27/08

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Attitude Control SystemUpdate 6-23-08 Day 39
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• Since last Meeting
• Have not met as a group since last status update
• Emailed Vanderlei last night asking for
  resources on coil design and the IDL orbit
  simulation software
• Have received email back from Brian Bingham,
  suggested using PID control

4

• This Afternoon
• Modeling Debug new problem in model
• Coil Optimization Waiting for Vanderlei reply,
  plan to finish ASAP
• Delineate new tasks this week
• Research control methods
• Develop PIC software
• Mechanical Design in Solidworks
• Circuit Design
• Overall integration of Design
• Website updates

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Pert Chart!
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Attitude Control SystemUpdate 6-24-08 Day 38
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• This Morning with Jeff
• CubeSat resources on Stanford site
• Hysteresis rods
• Talk to Rebecca about coil geometry
• Other satellite stories and fun

8

• Model
• Resolved issue with model Turns out it was an
  animation issue, not a computational issue
• Withstood verification
• Even went through Gimble Lock, only caused a
  momentary singularity
• Coil
• Decided on coil design
• Begun Solidworks of first prototype CubeSat

9

• New Tasks
• Task Delineation
• Research control methods Lorraine, Jacob
• Develop PIC software Dan, Lorraine
• Mechanical Design Christina
• Circuit Design Dan, Lorraine
• Overall integration of Design All
• Website updates Christina

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Attitude Control SystemUpdate 6-25-08 Day 37
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• Control Algorithm
• Working on PID algorithm
• Have outline of algorithm, and Simulink code
  that doesnt work yet
• Design Updates
• Mech Design Christina Solidworks-ing since
  yesterday
• Electrical Design Acquired equipment-PIC and
  connector kit
• Other Updates
• Website up to date
• Magnetometer

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Attitude Control SystemUpdate 6-26-08 Day 36
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• Control Algorithm
• Working PID algorithm for aligning with sun
  demonstration
• Correctly aligns to the suns axis however,
  does not stabilize roll
• Further verifies model
• Other Updates
• We have bought a magnetometer!
  http//www.sparkfun.com/commerce/product_info.php?
  products_id244

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• This Afternoon
• PIC stuff
• Mechanical design in Solidworks
• Fix roll problem in control algorithm

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Attitude Control SystemUpdate 6-27-08 Day 35
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• Control Algorithm
• Trying to stabilize roll
• Can measure roll axis via magnetometer, but
  trying to eliminate the roll is problematic
• Other Updates
• Plan to order materials today
• Going though POE labs to learn PIC stuff

17

• Deliverables
• Prototype Demonstration
• Executes all 4 control tasks
• Not test with time/power requirements
• Control Software and manual
• Paper