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    Use lidar for localization instead of Qvio

    Starling & Starling 2
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    • Muqing CaoM
      Muqing Cao
      last edited by

      About using another state estimation source, we would like to replace the onboard qvio with some lidar based odometry for localization and position hold purpose. Say we can get lidar-based position estimate in ROS message, can we disable the onboard VIO and feed our position estimate to the onboard flight controller through MAVROS or something else?
      Please advise!

      Eric KatzfeyE 1 Reply Last reply Reply Quote 0
      • Eric KatzfeyE
        Eric Katzfey ModalAI Team @Muqing Cao
        last edited by

        @Muqing-Cao Yes, definitely. The applications are auto started using systemd services and can be stopped / disabled using standard commands as desired.

        Muqing CaoM 1 Reply Last reply Reply Quote 0
        • Muqing CaoM
          Muqing Cao @Eric Katzfey
          last edited by

          @Eric-Katzfey Thanks for your reply. Can we have more details about the interface we could use to feed position estimate?

          Eric KatzfeyE 1 Reply Last reply Reply Quote 0
          • Eric KatzfeyE
            Eric Katzfey ModalAI Team @Muqing Cao
            last edited by

            @Muqing-Cao Just the standard Mavlink ODOMETRY message is what we have used. Not exactly sure how that translates into ROS land. But it isn't anything ModalAI specific.

            Muqing CaoM 1 Reply Last reply Reply Quote 0
            • Muqing CaoM
              Muqing Cao @Eric Katzfey
              last edited by

              @Eric-Katzfey Thank you. Could you lead me to the part of the code that sends the odometry mavlink msg in voxl sdk? That would be very helpful.

              Eric KatzfeyE 1 Reply Last reply Reply Quote 0
              • Eric KatzfeyE
                Eric Katzfey ModalAI Team @Muqing Cao
                last edited by

                @Muqing-Cao Here you go: https://gitlab.com/voxl-public/voxl-sdk/services/voxl-vision-hub/-/blob/dev/src/vio_manager.c?ref_type=heads#L450

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