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  4. My Sentinel crashed during simple missions with "Failsafe activated, triggering descend"

My Sentinel crashed during simple missions with "Failsafe activated, triggering descend"

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  • Jerry LinJ Offline
    Jerry LinJ Offline
    Jerry Lin
    Contributor
    wrote on last edited by
    #1

    Hi, here is the full messageScreenshot 2024-11-07 at 4.28.28 PM.png.

    Also sometimes the following was encountered: Screenshot 2024-11-07 at 5.13.00 PM.png.

    When I tried few simple missions, not sure why this happened only at certain points or certain directions? Also not sure why both local and global position estimates failed at the same time?

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    • Jerry LinJ Offline
      Jerry LinJ Offline
      Jerry Lin
      Contributor
      wrote on last edited by
      #2

      I suspected probably it is because of the fused local position by vision and searched in parameter. It sounds EKF2_GPS_CTRL is probably relevant. So, I set it to be 0 from 7. After trying that, my outdoor missions were all smooth without any accident.

      I then set it back to 7 and tried flying in position mode. This error happened again and with altitude mode was forced.

      So, anybody here know how to fix the problematic local position estimate? This is an AI drone and it shouldn't perform worse than drones without any vision.

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