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Legged Locomotion Meets Skateboarding

umich-curly.github.io

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Re: Legged Locomotion Meets Skateboarding

#31

Post by cship2 »

spunker540 wrote: post #17

Pretty cool! At first I wasn’t that impressed because it’s mostly just pushing to get some speed then “passively” riding down some ramps and steps. Then I realized that riding down steps is not a passive activity — most humans will fail their first time and need to learn to maintain balance while the board bounces over rough terrain. I think most inanimate objects would fall off a skateboard when pushed down steps, s…

Maybe it's this part of the abstract?

>Our approach incorporates a beta policy distribution and a multi-critic architecture to model contact-guided motions, exemplified by a challenging quadrupedal robot skateboard task

I'm not an expert on this but maybe someone here can explain it a bit about a beta policy distribution and a multi-critic architecture and how come that is good to model contact-guided motions?

Re: Legged Locomotion Meets Skateboarding

#32

Post by LeonB »

I watched the teaser video and was disappointed to see that — despite half a century of precedent — these so called experts failed to include, and focus on, some really gnarly stacks, nosedives and face plants.

Re: Legged Locomotion Meets Skateboarding

#34

Post by kh_hk »

MoonGhost wrote: post #24
spunker540 wrote: post #17

Pretty cool! At first I wasn’t that impressed because it’s mostly just pushing to get some speed then “passively” riding down some ramps and steps. Then I realized that riding down steps is not a passive activity — most humans will fail their first time and need to learn to maintain balance while the board bounces over rough terrain. I think most inanimate objects would fall off a skateboard when pushed down steps, s…

> most humans will fail their first time it's easier on 4 legs

And lower center of gravity

Re: Legged Locomotion Meets Skateboarding

#35

Post by metalman »

salynchnew wrote: post #6
munificent wrote: post #5

I really want to have something insightful to say, or perhaps something predictably pessimistic about robotics and AI. But I just can't get over how cute the little fucker is. Little robodog skateboarding around living his best life.

This is the kind of twee, midwestern robotics research that we all need today.

sure,fine,true, but it makes me twitchy, and I start trying to think up socialy acceptable ways to pass off walking around with a pump gun as just a thing

Re: Legged Locomotion Meets Skateboarding

#36

Post by sramam »

I know very little in this field, but does this mean they the LED color is serving as debug/log messages for the training process? It sure seems so to my naive reading, and seems so clever.

    We use different LED lights to indicate transitions between dynamic modes
    in the automata. Similar to segmentation techniques in computer vision, 
    the learned hybrid modes can help us analyze motion patterns more 
    systematically, improve interpretability in decision-making, and refine
    control strategies for enhanced adaptability.

Re: Legged Locomotion Meets Skateboarding

#39

Post by ASalazarMX »

olddog2 wrote: post #28

This is the unitree go1 robot dog which sells for $2700. Wasnt sure whether these were shipping/in the wild but obviously they have been for at least a few months!

Imagine your pet robot suddenly appropriating your kid's skateboard after its last update
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