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VIO FLİGHT

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  • Jonathan JeffJ Offline
    Jonathan JeffJ Offline
    Jonathan Jeff
    Contributor
    wrote on last edited by
    #1

    There are pauses in the VIO system.When the VIO system is activated, it stops after a certain distance.When I look at the local_position messages the data is not visible.

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

      Can you please share details about your setup? Which hardware and software are you using for instance? Do you have a screen capture from voxl-portal or QGC?

      Jonathan JeffJ 2 Replies Last reply
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      • Jonathan JeffJ Offline
        Jonathan JeffJ Offline
        Jonathan Jeff
        Contributor
        wrote on last edited by
        #3
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        • Chad SweetC Chad Sweet

          Can you please share details about your setup? Which hardware and software are you using for instance? Do you have a screen capture from voxl-portal or QGC?

          Jonathan JeffJ Offline
          Jonathan JeffJ Offline
          Jonathan Jeff
          Contributor
          wrote on last edited by Jonathan Jeff
          #4
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          • Chad SweetC Chad Sweet

            Can you please share details about your setup? Which hardware and software are you using for instance? Do you have a screen capture from voxl-portal or QGC?

            Jonathan JeffJ Offline
            Jonathan JeffJ Offline
            Jonathan Jeff
            Contributor
            wrote on last edited by
            #5
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            • Chad SweetC Offline
              Chad SweetC Offline
              Chad Sweet
              ModalAI Team
              wrote on last edited by
              #6

              Can you please share details about your system? Which products you are using and how they are configured? The link you sent is blocked.

              Jonathan JeffJ 1 Reply Last reply
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              • Chad SweetC Chad Sweet

                Can you please share details about your system? Which products you are using and how they are configured? The link you sent is blocked.

                Jonathan JeffJ Offline
                Jonathan JeffJ Offline
                Jonathan Jeff
                Contributor
                wrote on last edited by
                #7
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                • Chad SweetC Offline
                  Chad SweetC Offline
                  Chad Sweet
                  ModalAI Team
                  wrote on last edited by
                  #8

                  Maybe some others on the team might want to chime in, but some thoughts based on the video:

                  • voxl-portal with VIO overlay is a great debugging tool for this
                  • A field of waving grass is very challenging for a visual tracker
                  • there is a writeup on troubleshooting VIO here that might be helpful
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                  • Chad SweetC Chad Sweet

                    Maybe some others on the team might want to chime in, but some thoughts based on the video:

                    • voxl-portal with VIO overlay is a great debugging tool for this
                    • A field of waving grass is very challenging for a visual tracker
                    • there is a writeup on troubleshooting VIO here that might be helpful
                    Jonathan JeffJ Offline
                    Jonathan JeffJ Offline
                    Jonathan Jeff
                    Contributor
                    wrote on last edited by Jonathan Jeff
                    #9

                    @Chad-Sweet This is the first time I have encountered this problem, I have not encountered it before, I tested it 1-2 times in this way and there was no problem. It is a sudden situation. While passing over GPS, the camera gives correct data, but when we write over GPS stop mavlink, it gives failsafe.

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                    • Cliff WongC Offline
                      Cliff WongC Offline
                      Cliff Wong
                      ModalAI Team
                      wrote on last edited by Cliff Wong
                      #10

                      Jonathan, if you have a log(ulog) that exhibits the pause would be great, as it'll show which module is causing the issue. Since you mention local_position, there could be multiple possibilities, especially if you're fusioning GPS and vio data. Based on one's setup, the local position NED calculation may use other sensors and not just vio.

                      To briefly check if vio is the source of the problem, you can look at Odometry topic (directly coupled to voxl vio). If vio has an issue, you'll see the pause, it goto zero or freeze. If not, it's likely a PX4 tuning issue. Nonetheless the ulog will explain what is happening.

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