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  4. Use lidar for localization instead of Qvio

Use lidar for localization instead of Qvio

Scheduled Pinned Locked Moved Starling & Starling 2
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  • Muqing CaoM Offline
    Muqing CaoM Offline
    Muqing Cao
    Contributor
    wrote on last edited by
    #1

    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
    0
    • Muqing CaoM Muqing Cao

      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 Online
      Eric KatzfeyE Online
      Eric Katzfey
      ModalAI Team
      wrote on last edited by
      #2

      @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
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      • Eric KatzfeyE Eric Katzfey

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

        Muqing CaoM Offline
        Muqing CaoM Offline
        Muqing Cao
        Contributor
        wrote on last edited by
        #3

        @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
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        • Muqing CaoM Muqing Cao

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

          Eric KatzfeyE Online
          Eric KatzfeyE Online
          Eric Katzfey
          ModalAI Team
          wrote on last edited by
          #4

          @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
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          • Eric KatzfeyE Eric Katzfey

            @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 Offline
            Muqing CaoM Offline
            Muqing Cao
            Contributor
            wrote on last edited by
            #5

            @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
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            • Muqing CaoM Muqing Cao

              @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 Online
              Eric KatzfeyE Online
              Eric Katzfey
              ModalAI Team
              wrote on last edited by
              #6

              @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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