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  4. QVIO after breakdowns returns bad

QVIO after breakdowns returns bad

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  • G Offline
    G Offline
    Gdanan
    wrote on last edited by
    #1

    After a few tests with the QVIO, I saw numerous times that when it breaks (quality is equal -1), after the hard reset, the QVIO velocity output is incorrect and diverges very quickly, and then resets the QVIO for a couple of times.
    I see this behavior more frequently when I fly outdoors above 15 meters, even in slight maneuvers.
    Am I missing something? according to the spec the QVIO should be working up to 122 [m] above the ground.

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    • Chad SweetC Offline
      Chad SweetC Offline
      Chad Sweet
      ModalAI Team
      wrote on last edited by
      #2

      Have you reviewed the troubleshooting VIO document? https://docs.modalai.com/flying-with-vio/#troubleshooting-vio

      Where do you see a spec for 122m? We would not expect it to work that high

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      • G Offline
        G Offline
        Gdanan
        wrote on last edited by
        #3

        Yes, I have reviewed it. I observed through voxl-inspect-vibration that there is a significant amount of noise in the IMU (indicated by the red color). As a solution, I replaced the dampers, which helped to some extent. However, these phenomena still occur. Most of the IMU values are indicated in yellow color. Could this be the possible cause?

        I noticed this information in the seeker drone spec, so I understand that you were referring to flying with GPS. In that case, what is the maximum height at which the QVIO can fly and still maintain stability?

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