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Stress-testing Y6 fully autonomous missions

Posted by Chris Anderson on September 11, 2013 at 8:16pm

Ahead of the Iris launch, we've been testing more and more tough missions in fully autonomous modes. Next to our Berkeley offices we've got a small courtyard with high walls that is a combination of dodgy GPS and gusting wind. So naturally enough the Flight Ops team decided to run full autonomous missions with a 3DR Y6 all afternoon to stress test the tuning. I walked out during one of these and caught it on video, above.

This is a fully autonomous takeoff, three waypoints and autolanding. It did this all afternoon and always landed around one meter from launch point. 

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Comments

  • Rob_Lefebvre September 13, 2013 at 8:59am

    I guess that's an interesting question... what the limits of I2C exactly?  I never thought of that before.  I'm actually mounting mine back on the tail boom, and the cable has got to be about 50cm or more.  Doesn't seem to be a problem.

  • Cliff-E September 12, 2013 at 1:26pm

    Y-6 >> Hexas on landing. The wind resistance and stability are just naturally better. Our hexas sometimes drift <+-2m from gusts/ground effects on very low climb_rates (like that in the video, aka descent rate that is).

    Jack, also, the good'ol oil pan allowed moving the compass to anywhere you wanted within I2C limits. I usually have mine 1-2" above the oilpan back then/now and worked great.

    Though, I have to admit, my MTK1.9 (5Hz) is almost dead-on with what the Ublox does.

  • Rob_Lefebvre September 12, 2013 at 8:45am

    Jack, a number of people were putting the APM GPS and Compass on a boom for a long long time.  ;)  

  • Jack Crossfire September 12, 2013 at 2:06am

    ublox-6 is a winner. Hard to believe it took so long for someone to think of putting GPS & compass on a boom, DJI  being the one.

  • Moderator
    Gary Mortimer September 11, 2013 at 11:51pm

    Powerlines as well, nice trailer as I believe you chaps in the new world call them.

  • John Boyer September 11, 2013 at 10:34pm

    So sorry I was yelling over that entire clip...

  • Gary McCray September 11, 2013 at 9:12pm

    Looks really good, I think that flying up from ground and landing back in the center of the courtyard courtyard saved you from the worst of the multipath.

    While you were actually flying around you were probably above multipath.

    My guess is if you set take off and landing near your tall wall it won't behave quite so well.

    And in between high rises, forget about it, multipath is a real monster.

    All that aside, excellent flights and as good as you could hope.

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