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    I
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    Topics created by iparra

    • I

      Using april tags for relocalization during offboard "trajectory" mode

      AprilTag Relocalization
      • • • iparra
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      ModeratorM

      @iparra have you read through the documentation on how to configure the tags? https://docs.modalai.com/voxl-tag-detector/#voxl-configure-tag-detector

    • I

      ESCs calibration after propellers replacement

      ESCs
      • • • iparra
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      Alex KushleyevA

      @iparra ,

      There is no need to re-calibrate the ESC parameters if you replace the damaged motor and / or propeller with the identical parts. The ESC parameters are tuned to a motor/propeller type, not a specific motor / propeller unit. You can replace only the damaged components.

      If the flight feels more wobbly after you replaced the damaged propeller with new one, it is possible the remaining propellers are also damaged or bent, which is causing more vibration.

      Alex

    • I

      Starling loosing stability when switching from position mode to trajectory mode

      Starling & Starling 2
      • • • iparra
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      I

      When we start voxl-tag-detector service with "en_tag_fixed_frame": true any change to offboard mode makes the drone loose the position, heavily drifting sideways. Isn't the px4 control referenced only to local frame? If so tag relocalization shouldn't affect the hold position. Is there any other configuration we are missing?

    • I

      How to load a vxblx file into voxl-mapper

      Ask your questions right here!
      • • • iparra
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      I

      @Moderator Hi, do you know where can I get a description of the tsdf file format that the voxl-mapper uses?

    • I

      Starling planning using waypoints

      Ask your questions right here!
      • • • iparra
      6
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      I

      @Jetson-Nano Unfortunately it is not yet fully working, as I said I managed to create plans with waypoints and to fly those plans we are currently launching the plans on a waypoint to waypoint basis so, no full trajectory without stopping (we don't have to click on the waypoints but the drone stops to plan the next strecht). We have done so because we don't trust the VIO to be able to mantain a correct pose for the long trajectory through the waypoints and we "stop" at the waypoints (where we placed april tags) to relocate and replan with a corrected position after a flight between waypoints.

      If you trust VIO to follow your planned trajectory it is possible. We have modified the planTo function from mapper to localize the closest waypoint to the clicked target and we launch global_planner_->createPlan(current_start, final_target, waypoints_); iteratively from way point to waypoint without clearing the waypoints_ vector until it reaches the last waypoint and then plan to the actual target. This creates a long trajectory that should be followed when you press follow button. As I said we have never tried to follow the long trajectory, but as far as I understand the drone should follow it given that qvio maintains a good enough pose.

      Right now we are experiencing stability issues when switching from position mode to trajectory mode. If we manage to solve that I can run a test with the long trajectory and get back to you.

    • I

      Sentinel ESC blue leds don't remain solid or flash

      Starling & Starling 2
      • • • iparra
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      I

      @Eric-Katzfey We loaded the default parameters with QGC and everything is back to normal.

      Thank you for your help!