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Indoor Altitude Estimate Divergence

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starling
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  • G Offline
    G Offline
    griffin
    Contributor
    wrote on last edited by
    #1

    Hey All,

    Testing indoors I've had several instances of altitude estimate divergence requiring reversion to manual control and an emergency landing on a starling 2 max.

    altitude_plot_divergence.png
    throttle_plot_divergence.png

    It seems that the error begins when I activate the offboard mode with the default figure 8 loaded.
    My assumption is that as the drone yaws it loses some of the VIO points and is uncertain about its altitude causing a rapid climb in offboard and position modes.

    What would the best way be to correct this issue?

    • I could try to add visual markers (i.e. april tags) to the warehouse walls to provide more references?
    • Does the starling 2 max use both forward and downward facing cameras for VIO? I thought I saw a post about this feature being enabled in the nightly builds but am unsure.
    • Should I expect these issues to improve inherently by moving into a more visually active space (inside an unoccupied office area)? I am hesitant to fly in more confined areas without being confident in the aircraft estimate and position holding reliability.

    Kind regards,
    Griffin

    G 1 Reply Last reply
    0
    • G griffin

      Hey All,

      Testing indoors I've had several instances of altitude estimate divergence requiring reversion to manual control and an emergency landing on a starling 2 max.

      altitude_plot_divergence.png
      throttle_plot_divergence.png

      It seems that the error begins when I activate the offboard mode with the default figure 8 loaded.
      My assumption is that as the drone yaws it loses some of the VIO points and is uncertain about its altitude causing a rapid climb in offboard and position modes.

      What would the best way be to correct this issue?

      • I could try to add visual markers (i.e. april tags) to the warehouse walls to provide more references?
      • Does the starling 2 max use both forward and downward facing cameras for VIO? I thought I saw a post about this feature being enabled in the nightly builds but am unsure.
      • Should I expect these issues to improve inherently by moving into a more visually active space (inside an unoccupied office area)? I am hesitant to fly in more confined areas without being confident in the aircraft estimate and position holding reliability.

      Kind regards,
      Griffin

      G Offline
      G Offline
      griffin
      Contributor
      wrote on last edited by
      #2

      @admin @Moderator Any suggestions on how to prevent this altitude divergence? This happens somewhat regularly and requires reversion to manual control.

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