CanSat 2008: Michigan Tech Final Presentation

1,232 views
1,116 views

Published on

Final presentation by Michigan Tech at CanSat 2008

http://www.astronautical.org/2008/06/15/cansat-2008-michigan-tech-university/

Published in: Technology, Business
1 Comment
0 Likes
Statistics
Notes
  • Be the first to like this

No Downloads
Views
Total views
1,232
On SlideShare
0
From Embeds
0
Number of Embeds
11
Actions
Shares
0
Downloads
33
Comments
1
Likes
0
Embeds 0
No embeds

No notes for slide

CanSat 2008: Michigan Tech Final Presentation

  1. 1. Michigan Technological University Aerospace Enterprise CanSat Project
  2. 2. Team <ul><li>Joe Thompson – Team Leader, Electronics </li></ul><ul><li>Sean Ritter – Electronics </li></ul><ul><li>Nick Telenko-Structure, Top Deck </li></ul><ul><li>Jeff Hanson-Structure, Top Deck </li></ul><ul><li>Robert Emperley-Structure, Bottom Deck </li></ul><ul><li>Nathan Beauchamp-Structure, Bottom Deck </li></ul><ul><li>Daniel Vanderhoof-Ground Station </li></ul>
  3. 3. Design Overview <ul><li>Constructed from UHMW polyurethane and aluminum components </li></ul><ul><li>Detachable parachute for controlled descent </li></ul><ul><li>Onboard GPS for position tracking </li></ul><ul><li>(4) uprighting legs </li></ul><ul><li>(4) onboard cameras for panoramic picture (not incl. final) </li></ul>
  4. 5. <ul><li>Top Deck Design </li></ul><ul><li>Dia: 2.6 in, Deck thickness: 0.25 in, Material: ABS plastic </li></ul><ul><li>Main parachute lines are attached to a parachute nut in the center of the top deck. </li></ul><ul><li>Steering lines are attached spools that are driven by the motors. </li></ul><ul><li>Motors attached to worm gears, which rotate the spools, make the CanSat controllable. </li></ul><ul><li>Parachute motors are mounted on the underside of the top deck. </li></ul><ul><li>Motor mounts are made of Lexan </li></ul>
  5. 6. Bottom view of top deck; motors, motor mounts, and worm gears Top view of top deck; spool, gears, parachute nut
  6. 7. <ul><li>Bottom Deck Design </li></ul><ul><li>Dia: 2.6 in, Deck Thickness: approx. 1.25 in at outside edge, approx. 2.0 in at center. </li></ul><ul><li>Motor mounted in the center of the deck turns the center shaft which lowers the uprights, making the CanSat upright itself. </li></ul><ul><li>When not lowered, uprights will tuck under the top deck and fit within our 2.6 in dia. </li></ul><ul><li>Linkages are long enough that the uprights will lay flat when completely lowered. </li></ul>
  7. 8. Drawings/Photos
  8. 9. <ul><li>Holes for wire and antenna routing </li></ul><ul><li>All unused MCU pins brought out to header providing modularity </li></ul><ul><li>Surface-mount components allow for high density layout </li></ul>
  9. 10. Power <ul><li>Polymer Lithium/Ion Battery—3.7 volt, 1100 mAh x 2 </li></ul><ul><li>Specially Designed Lower Deck Compartment </li></ul><ul><li>Consistent Electronic Voltage of 3.3 Volts controlled by low-dropout regulator </li></ul>
  10. 11. Communication <ul><li>Aerocomm AC4490 Transceiver </li></ul><ul><li>4 mile LOS range </li></ul><ul><li>902-928MHz frequency range </li></ul><ul><li>21 gram weight </li></ul><ul><li>115.2 kb/s data transmission rate </li></ul>
  11. 12. Flight Software <ul><li>Language: MPLAB C30 </li></ul><ul><li>Microchip IDE used to write and develop code </li></ul><ul><li>In-circuit debugging / programming </li></ul><ul><li>Fully integrated software design suite </li></ul><ul><li>Simulation capabilities </li></ul>
  12. 14. Station Integration <ul><li>Laptop computer running MATLAB </li></ul><ul><li>USB radio interface </li></ul><ul><li>Data-logging interface, no GUI was created for this year </li></ul>
  13. 15. Cost Summary Structure Ground Station UHMW Plastic $40.00 Laptop $150.00 Aluminum Uprights $5.00 Radio Set $125.00 Fasteners $10.00 Battery Charger $25.00 Motors $60.00 Electronics Services Polymer Lithium Ion Batteries - 860mAh $8.95 Pcb Manufacturing $170.00 JST Vertical Connector $0.95 Solder Stencil $35.00 Jumper Wire - JST Black Red $0.95 MPLAB Compatible ICD2 with USB $119.95 USB Cable A to B - 6 Foot $3.95 Polarized Header for Breadboard and ICSP $1.25 CAP CERAMIC 4.7UF 6.3V X5R 0603 $0.19 IC MOTOR DRVR STEPPER DUAL $1.11 Total To Date: $1,038.04 CAP .1UF 16V CERAMIC X7R 0603 $0.04 Hardware Cost: $473.04 IC LDO REG 1A 3.3V SOT223-3 $1.73 CAP CERAMIC 10UF 6.3V X5R 0603 $0.36 IC DSPIC MCU/DSP 64K 64TQFP $10.08 SENSOR 30-120KPA SPI $20.30 CONN 20POS 2MM HEADER DUAL GOLD $1.48 CONN 20POS 2MM SOCKET VERT PC MT $2.02 CABLE ASSEM 2MM 20POS F-F 2&quot; $9.62 CAP 1UF 6.3V CERAMIC X5R 0603 $0.07 CAP .47UF 6.3V CERAMIC X5R 0603 $0.05 Radio $75.00 GPS $100.00
  14. 16. Preparation & Launch
  15. 17. Flight Data
  16. 18. Flight Data *wunderground.com history for APRSWXNET (PWS) 14 June 2008
  17. 19. Flight Data
  18. 20. Flight Data
  19. 21. Lessons Learned <ul><li>Parafoil Recovery </li></ul><ul><ul><li>Extended descent time </li></ul></ul><ul><ul><li>Improved Trajectory Control </li></ul></ul>
  20. 22. Lessons Learned (cont.) <ul><li>Antenna extension </li></ul><ul><ul><li>Raise from ground level for LOS </li></ul></ul><ul><ul><li>Quick portability – 10m+ extension cord </li></ul></ul><ul><li>Pre-launch push-button operation demo </li></ul><ul><ul><li>Ability to diagnose problems early </li></ul></ul>
  21. 23. Questions?

×