Drone quadracopters throw and catch inverted pendulum - RC Groups
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Feb 23, 2013, 04:14 AM
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Drone quadracopters throw and catch inverted pendulum

That trick has been accomplished by boffins at ETH Zurich’s Institute for Dynamic Systems and Control, where a “Flying Machine Arena” exists and is used to train flying 'bots.

The Institute and Arena scored plenty of attention back in 2011 with this video of quadracopters juggling, after a fashion.
Quadrocopter Ball Juggling, ETH Zurich (1 min 0 sec)

Now Masters student Dario Brescianini has taught the drone 'quadracopters an even tougher trick: throwing and catching inverted pendulum, essentially a pole with its centre of mass above its pivot point. Because the inverted pendulum used has two weights on its mid-section, its motion is rather more complex than that of a ball. Teaching a quadracopter to toss and catch one is therefore a rather harder problem.
Quadrocopter Pole Acrobatics (2 min 1 sec)

Full story at http://www.theregister.co.uk/2013/02...s_and_catches/
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Feb 23, 2013, 04:39 AM
Head full of foam
There's a really good TED talk on this and it's NOT this one:
Vijay Kumar: Robots that fly ... and cooperate (16 min 47 sec)

That one's OK, but there is another where the guy has 3 quads and they are acting in concert to move a net to throw a ball up in the air right on stage (amongst many other impressive things).

Can anyone find the other one? I'd like to watch it again.
Feb 23, 2013, 04:48 AM
Knowledge prevents flyaways
ecks's Avatar
Raffaello D'Andrea at ZURICH.MINDS -- Feedback Control and the Coming Machine Revolution (23 min 37 sec)
Feb 23, 2013, 05:18 AM
Head full of foam
Ya! That's the one!


Edit: I see it's NOT a TED talk. Explains why I couldn't find it...
Last edited by RuralFPV; Feb 23, 2013 at 05:24 AM.
Feb 23, 2013, 05:31 AM
Head full of foam
His conclusion at the end is interesting (off the multirotor topic).

He talks about machines not only working together but learning from each other... basically "how long until skynet becomes aware" type of thing.

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