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DemoSat III Launch Readiness Review - July 29, 2005

DemoSat III Launch Readiness Review - July 29, 2005. Presented by: David Gooding Erik Andersen Anna Vigil Matt Elsner Al Crawley. Weight Specification 1.85 kilograms (allowed 350g extra) Box must open independently upon landing Burn through the fishing line that holds the box closed

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DemoSat III Launch Readiness Review - July 29, 2005

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  1. DemoSat IIILaunch Readiness Review - July 29, 2005 Presented by: David Gooding Erik Andersen Anna Vigil Matt Elsner Al Crawley

  2. Weight Specification 1.85 kilograms (allowed 350g extra) Box must open independently upon landing Burn through the fishing line that holds the box closed Springs open / turn box upright Rover must maneuver independently Detach itself from box Move forward out of box at least 2ft, and drive around for at least 10 minutes. Sense object, stop, take picture, reverse and turn, then move forward around object Mission: RoverSat

  3. Box land on one of three designated sides. Be the first team to have box open and rover travel out of box independently. Rover navigate through terrain while taking pictures of various objects. Rover maneuver around objects correctly. Rover travel around for at least 10min taking at least 15 pictures. Mission Goals

  4. Micro Controllers PIC 1 PIC 2 Motor Left Motor Right Motor Left Motor Right Motor Enable To Burn Relay IR Sensor WakeUp From PIC 1 Ground Ground +5V +5V Bumper Switches Turn on Servo Camera Power From PIC 2 Camera Trigger Wake Up PIC 2 Servo Box Switches To PIC 1 Motors

  5. PIC 1 Running During Flight PIC 2 in Sleep Mode During Flight Initialize Pins Switches Pressed Turn Camera On Servo Sweep 10 Min Elapsed? No Yes No Object Sensed? Open Box Yes Wake Up PIC 2 Send Signal to Motors to Stop Run Motor Program Take Picture No Object Hit? Delay Yes Interrupt Program: Stop/Reverse

  6. Before - After

  7. Circuit Board

  8. 3D Model

  9. 3D Model Side View

  10. Mass Budget

  11. Item Cost Digital Camera (3 @ $ 80.00) $ 240.00 Servo / IR Sensor $ 60.00 Twin Motor Gear Box $ 60.00 Pulleys + Belt $ 20.00 Foam Board $ 25.00 Battery Pack $ 21.00 Copper Board $ 7.00 Switches (4 @ $ 5.00) $ 20.00 PIC (4 @ $ 3.85) $ 15.40 Relays (3 @ $ 2.35) $ 7.05 Total $ 473.00 Expenses

  12. Pressure test Foam did not expand but compressed under vacuum Cold test In Ice chest with dry ice for 1 ½ hours Driving on various surfaces Box opening test Many trials of tying box closed Drag test (picture) Drop Test Straight fall, tumble fall, etc Full Function test Testing

  13. Drop Tests

  14. Full Function Test

  15. Pictures of Mesa

  16. Questions???

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