Our Pale Blue Dot bcpp2010

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  • TakeoPursatKampongSpeu

Transcript

  • 1. Let’s Build the First Cambodian Spaceship!!
    Let’s Design the first Cambodian Spaceship!!!
    Barcamp PP 2010
    All photos are © edjez, OurPaleBlueDot project
  • 2. Let’s Design the first Cambodian Spaceship!!!
  • 3. Why?
    Our planet is a small and life on it is fragile
    By seeing the earth from outside, some people begin to appreciate things differently
    Especially children
    (and it’s fun!)
  • 4. From Space…
    There is no ‘them’, just ‘us’
    You can see the place where every human that ever was alive spent his life
    You can appreciate the totality of our natural resources
    We can see the importance of thinking of the planet as a closed system
  • 5. Closed System =
    Finite resources
    Nowhere else to throw trash
    Nowhere else to farm land
    Nowhere else to go conquer
    Nowhere else to get resources from
    No undo
    Just us
    Much of our society’s governance methods, planning capacities and maybe even our religions evolved in ‘open system’ mentality
    We’ve reached the limit of that illusion
  • 6. Perspective
    The atmosphere of earth is thinner than the layer of paint on a football
    All life on earth is in that thin layer
  • 7. The atmosphere and our target
    80 km
    30 km
  • 8. Don’t you need a rocket to go to space?
    - Nah, with something like SpaceShipOne you are OK to touch space and fall back
    So why do space programs use rockets?
    - To develop enough speed for orbit, (to stay in space and not fall back down) you need a LOT of energy (many Kg of fuel per Kg of cargo!) – little planes are not enough
    So…technically we won’t be reaching “Space” but it’s close enough for our goal!
  • 9. Let’s Design the first Cambodian Spaceship!!!
    Let’s get with the program
  • 10. Analyzing a complex project
    Risks
    Architecture
    Process
    Helium Balloon lifting a box with cameras and GPS Trackers
    Build system, test it, launch, go recover it
    Anticipate problems and work around them
  • 11. Architecture
    Lift
    Optics
    Recovery
    Climate Control
    - Memory
    - Firmware
    • Video Cam
    - Memory
    - Batteries
    • APRS Tracker
    - GPS Receiver
    - GPS Antenna
    - Beacon
    - VHF Antenna
    Safety
    • Parachute
    • 20. Radar Reflector
    Every Critical Subsystem must have two primary independent units
  • 21. Schematics
  • 22. Helium balloon – not Hydrogen!
    Parachute
    Small radar reflector
    Laminated recovery note
    Payload
    Antenna
    People
  • 23.
  • 24.
  • 25. Important Parts - Tracking
    APRS Tracker – Byonics MT8000FA
    Primary tracking system
    • Fast (15s)
    • 26. Lat/Long/Alt
    • 27. Reliable range (6W transmission)
    • 28. Many parts (risky electronics)
    • 29. GPS Works above 30km (Lassen iQ)
    • 30. Using ¼ wave Yagi antenna
    SPOT Tracker
    Backup tracking system
    • Slow (10m)
    • 31. Unreliable (<50%)
    • 32. No altitude reports
    • 33. Doesn’t work above 7000mts
    • 34. Doesn’t need GSM signal
    • 35. Rugged, low batt usage
    • 36. 24 hs of tracking from launch
    • 37. Reports to web only, use GeoChat to forward to SMS
  • 38. Chase & Find!
  • 39. Important Parts - Optics
    2nd hand Canon camera
    CHDK on 2nd partition of SD card
    GOPro video camera
    Many batteries
    No case
  • 40. “Ballooning” as a Hobby
    Some have it as a hobby…
    Weather scientists
    Electronics
    DIY – Do It Yourself
    Playing with GPSs
    Maps and imagery
    Radio electronics, radio control, telemetry
    “Extreme Geocaching” (your target falls from 30km!)
    The fun –and tension- of the chase
    You can develop it in your own direction
    We do it to take pictures of the earth
    Green? Risks with batteries & helium shortage biggest concerns. Use LiPolyrechargeables and in the future learn to safely do Hydrogen launches
  • 41. Process
    Plan
    Build
    PreLaunch
    Launch
    Recovery
    Design
    Materials
    Team
    Event
    Schematics
    Licenses
    Risk Analysis
    Assemble
    Test
    Curse
    Assemble again
    Test
    ….
    Prediction
    Permits
    Plan & Schedule
    Batteries
    Memory
    Travel
    Checklists
    Inflate
    Assemble
    Go/No-Go
    Takeoff!
    Chase
    Maps
    Vehicles
    (car boat bike)
    GPSs
    GET NERVOUS
    SEARCH & FIND
  • 42.
  • 43. Risk Analysis
    Risk Model:
    Threat Prob(%) Impact (Hi/med/low) Mitigation
    Use Risks to drive design & testing methods!!
    Risks
    Many industries use “Risk-Driven-Design” to build great products
  • 69. Unique Cambodia Risks & Mitigations
    Safety: Must land away from mined/UXO areas
    Takeo has lowest statistics, << 1% of Cambodia’s accident statistics
    All search people MUST have LM/UXO briefing
    Road Conditions
    Be patient and drive safely
    SSCA and CATS Regulations
    Avoid all class B…D airspace
    Spend little time in class A
    Build extended radar reflector for TACAS
    Wide clearing from any national borders
    Water landing: rice paddy, puddle or lake
    Design a payload that can land in water
    Inflatable boat
    Boots. Change of clothes to get wet?
    Weather changes faster
    Good Luck, launch in morning
  • 70. It’s an Experiment!
    • Many things not in our control
    • 71. We may loose all the equipment
    • 72. Problems may arise at inflation
    • 73. But.. no reason not to try again later
  • Let’s do some work!
  • 74. Need 3 Teams
    Team 1: Design and Build a large and lightweight Radar Reflector
    Team 2: Start assembly of payload encasing
    Team 3: Localize Logistics
  • 75. Radar ReflectorTCAS Onboard Air Collision Avoidance, large mylar, wire and graphite structure
    Goal: Large (>1m2) radar-reflective 3D element
  • 76. Payload Case
    Goal: Present and prepare basic Payload structure
    Easy to assemble and disassemble
    Cameras are ‘stable’ in their position (no wiggle)
    Thermal insulation compartment
    Top ‘layer’ for GPS and SPOT tracker
  • 77. Logistics
    Goal: Khmer language and culture notes
    Goal: Establish Launch and Land sites
    Easy for folks to understand – even cartoons?
    Clear instructions: Leave outside with view of sky, we will pick it up, reward offered
    Safe, reachable spot. Discuss alternatives, propose top 2 with pros and cons
  • 78. Need your Help!
    Logo – what is the logo that we should give it?
    Plan Launch to hit good land site (in Takeo?)
    Need
    Dolly
    - Bedsheets to use as clean surface
  • 79. What about launch?
    Still arranging logistics
    Expect the unexpected
    Everyone is responsible for themselves and their family/friends
    Be ready for many hours in the car!
    edjez@ourpalebluedot.net
  • 80. Thanks!
  • 81. There are people dying of hunger in the world – isn’t space exploration a waste of precious resources?
    Space exploration is almost nothing compared to defense spending, and minor when compared to profit of major potentially unsustainable industries… and smaller than major relief and aid efforts. IMO ROI is positive.
    World Defense Spending
    1100 Billion
    Advertisement Spending
    PEPFAR + GHI
    BP Profit
    420 B
    60B
    Smith/Glaxo/Kline Profit
    60B
    Monsanto Profit
    20B
    18 B
    4B
    Sources
    http://www.globalsecurity.org/military/world/spending.htm
    http://facts.kff.org/chart.aspx?ch=1314
    http://en.wikipedia.org/wiki/NASA_Budget