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jeudi 12 juillet 2012

Status - Work left to do (quite a lot !)

We're getting there..

Here's what's left to do :


  • Get the DGAC authorization (we're getting in touch with local associations)
  • Check that the GPS is able to retrieve position at 30km altitude
  • Setup downlink communication from payload to ground 
    • to receive GPS position on the ground (mavlink protocol) using either zigbee or the video link
    • to send video on the ground - OK, i've got the transmitter but I need two antenna trackers and helicoidal antenas for a very directive antenna beam.
  • Setup a uplink communication from ground to payload (mavlink protocol to send commands to control camera orientation)
    • The best is to use ardupilot for that, and to plug a transmitter receiver such as zigbee
  • Finalize the tilt roll stabilization (three options)
    • use the stabilization from the ardupilot board but it seems that it is rather planned for use inside an aircraft (the stabilization isn't very responsive)
    • Find a firmware that let me use the ardupilot as an IMU (I haven't found any at this point)
    • Buy an IMU device (ardupilot or not) but in this case, I won't be able to control the orientation of the camera
    • Make it all from RC equipment and use a heli gyro for stabilization (but that means I have to study the way it works..)
  • Setup the pan rotation (waiting for order at servocity to arrive, received low temp grease from Molykote)