Problem with G-forces on helicopter...

Discussion in 'MōVI M15' started by Asier. Schwarzlose., Apr 3, 2018.

  1. Asier. Schwarzlose.

    Asier. Schwarzlose. New Member

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    When the helicopter turns to the right or to the left, the ROLL engine in the Mōvi goes to lose the horizon and it takes a long time to return to the correct horizon ... How can I solve it? Somebody has experience with it? I would be glad with your help. Thanks!
     
  2. Graham Futerfas

    Graham Futerfas Well-Known Member

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    Are you handheld inside or fixed mounted to the helicopter?

    What is your Heading Assist set to?
     
  3. Asier. Schwarzlose.

    Asier. Schwarzlose. New Member

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    handheld inside, whats mean "Heading Assist"?
     
  4. Andy Johnson-Laird

    Andy Johnson-Laird Administrator
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    Asier -- that's a tough problem to solve entirely, I'm afraid. As Albert Einstein observed, gravity and acceleration are indistinguishable, so when the helicopter turns, it subjects the MoVI to an acceleration and that "fools" the internal motion unit (IMU) into believing that "gravity" is coming from a different direction so the horizon changes.

    Graham: Suggestions to minimize the acceleration error thus induced?

    Andy

    Forensic Software & sUAV / Drone Analyst : Photographer : Videographer : Pilot (Portland, Oregon, USA): Trees=2, Ground=1, Props=11. :(
    The Ground Is The Limit™
    ---------- Forensic Drone Analyst : Forensic sUAV Analyst : Forensic Unmanned Aircraft Analyst : Forensic Drone Expert
     
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  5. Ozkan Erden

    Ozkan Erden Distributor

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    In the expert menu, you can set the "Heading Assist" to "GPS" which helps to fix the horizon, BUT, the MEMS sensors used on consumer type gimbals, including Movi, susceptible against high speed chasing, and fast turns. You will have horizon issue eventually.

    On high end systems, fiber-optic gyros are used. Freefly released for a fiber optic gyro for Movi XL but they are very very expensive and there is no such a solution for Movi series except the XL.
     
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  6. Asier. Schwarzlose.

    Asier. Schwarzlose. New Member

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    Thanks bro for the GPS Tip!... I'll try
     

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