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DARPA this Weekend, Anyone? — Parallax Forums

DARPA this Weekend, Anyone?

Comments

  • PublisonPublison Posts: 12,366
    edited 2015-06-05 08:30
    erco wrote: »

    Love to attend, but I am Safety Chair and Starter at the 7th annual Connecticut High School Hovercraft Race this weekend. Not to mention it would take a couple os weeks on my bike, truck's in the shop. :)


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  • ercoerco Posts: 20,256
    edited 2015-06-07 15:34
    Korean bot wins, time to complete 8 tasks, under 45 minutes. USA settles for 2nd & 3rd place.

    http://news.yahoo.com/korean-robot-takes-home-2m-prize-darpa-challenge-122922371.html
  • cruXiblecruXible Posts: 78
    edited 2015-06-08 15:05
    Call me weird, but I feel sympathy for the robots that fall over. I don't really consider the people who put in all that time and money to build them, just the robot!
  • WhitWhit Posts: 4,191
    edited 2015-06-08 18:23
    Man, I wish I had been there!
  • ercoerco Posts: 20,256
    edited 2015-06-08 18:25
    Asimo set the bar pretty high at https://www.youtube.com/watch?v=ASoCJTYgYB0
  • cruXiblecruXible Posts: 78
    edited 2015-06-08 22:41
    erco wrote: »
    Asimo set the bar pretty high at https://www.youtube.com/watch?v=ASoCJTYgYB0

    Oh, man! What on earth happened at 0:57? I was in stitches watching that video!
  • jdoleckijdolecki Posts: 726
    edited 2015-06-09 01:01
    Guess we don't have to worry about the robots taking over yet!
  • mindrobotsmindrobots Posts: 6,506
    edited 2015-06-09 05:31
    jdolecki wrote: »
    Guess we don't have to worry about the robots taking over yet!

    That's certainly what they WANT you to think!!
  • ercoerco Posts: 20,256
    edited 2015-06-09 07:56
    mindrobots wrote: »
    That's certainly what they WANT you to think!!

    Robo-bluffin'?

    That takes AI to a whole new level...
  • mindrobotsmindrobots Posts: 6,506
    edited 2015-06-09 11:30
    What if AI is advanced enough to fail the Turing test ON PURPOSE!!! Kinda scary, huh??

    Time for a Sci-fi novel!!
  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2015-06-09 12:08
    cruXible wrote: »
    Oh, man! What on earth happened at 0:57? I was in stitches watching that video!

    Out of a 40 second video we'll never know!

    Seriously, some of these look like the old "out of gas" problem -- a sudden loss of hydraulics. On one (at :34) the poor thing shakes. Could by hydraulics, I guess, or it started to get unbalanced and it tried to recover.

    Is it just me, or do some of these bots look like their feet are too small for what's on top?
  • ctwardellctwardell Posts: 1,716
    edited 2015-06-09 12:14
    erco wrote: »
    Asimo set the bar pretty high at https://www.youtube.com/watch?v=ASoCJTYgYB0

    Evidently Sarah Conner doesn't need to worry yet...

    C.W.
  • rod1963rod1963 Posts: 752
    edited 2015-06-09 15:15
    Gordon

    Yeah they are too top heavy, carrying weight too high really messes with a person's CG let alone for a robot. Lean too far forward, sideways or rearwards and it's say hello to the ground. Same with moving and stopping to fast.

    Personally I'd go with tracked or wheeled robot for such a contest.
  • xanaduxanadu Posts: 3,347
    edited 2015-06-09 16:52
    I like the humanoid upper body with 4 or more legs and tracked or wheeled feet.

    My robot came crashing down this weekend too. First IoT quadcopter test, connect to AP and ping it while maneuvering. I'll start a thread on this once I add the Propeller.
  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2015-06-09 20:05
    I think these had to be humanoid to fulfill the DARPA mandate.

    Well, you know what they say about robots with small feet: Tiny feet, tiny ... microcontroller.
  • cruXiblecruXible Posts: 78
    edited 2015-06-09 23:31
    Out of a 40 second video we'll never know!

    Seriously, some of these look like the old "out of gas" problem -- a sudden loss of hydraulics. On one (at :34) the poor thing shakes. Could by hydraulics, I guess, or it started to get unbalanced and it tried to recover.

    Is it just me, or do some of these bots look like their feet are too small for what's on top?

    Lol

    I don't know what happened, but the video I saw before was different (most of the same crashes with some extra). I will look for it tomorrow and post it for all to enjoy.
  • TorTor Posts: 2,010
    edited 2015-06-10 00:06
    Hm, why bipedal? Why not go mythological and make a centaur? Stable, with free hands. Start with this one and go from there: https://www.youtube.com/watch?v=M8YjvHYbZ9w

    -Tor
  • cruXiblecruXible Posts: 78
    edited 2015-06-10 14:45
    cruXible wrote: »
    Lol

    I don't know what happened, but the video I saw before was different (most of the same crashes with some extra). I will look for it tomorrow and post it for all to enjoy.

    Okay. Here is the video:

    @:57

    It looks like my child having one of his violent tantrums in which he flops backwards.
  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2015-06-10 14:53
    Hahaha! At :59 pretty clear it's from total loss of power. If we had the actual soundtrack rather than the silly music, we might hear the engine cut out, or something.
  • xanaduxanadu Posts: 3,347
    edited 2015-06-10 16:41
    I wonder if they had to hit a kill switch for some reason.
  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2015-06-10 17:18
    Apparently there is no sound of any of the robots in action. Might be a security thing, but it's impossible to hear why the robots are failing.

    Here's one where the failure is not power-related, but programming. Zoom to 3:00:05, and watch for a few seconds. The robot obviously sees the valve to turn it, but I'm guessing half of its programmers were working in inches, and the other half in centimeters. The poor bot almost a foot away, tries to turn the knob, and falls over because it was expecting some resistance.
  • TorTor Posts: 2,010
    edited 2015-06-11 00:25
    Yeah I noticed that one too, I was a bit surprised because I thought surly a robot must have some kind of feedback in its sensory system? But it looks like the position of the knob was calculated, then it was calculated where the arm should go (and that part may be where the imperial team vs. the metric team clashed..), and then the arm was moved to the calculated position, with no feedback. Humans use feedback from their own senses whenever possible, including vision.

    -Tor
  • ercoerco Posts: 20,256
    edited 2015-06-11 06:41
    ... and falls over because it was expecting some resistance.

    Note to the all-new programming team for DARPA 2016: Expecting resistance is futile.
  • mindrobotsmindrobots Posts: 6,506
    edited 2015-06-11 06:59
    erco wrote: »
    Note to the all-new programming team for DARPA 2016: Expecting resistance is futile.

    At least it wasn't expecting the Spanish Inquisition.......

    :D
  • ercoerco Posts: 20,256
    edited 2015-06-12 10:25
    (Motivational speaker and) DARPA program manager Dr. Gill Pratt said “these things are incredibly dumb. They’re mostly just puppets.”


    http://www.roboticstrends.com/article/why_so_many_robots_struggled_with_the_darpa_challenge
  • GordonMcCombGordonMcComb Posts: 3,366
    edited 2015-06-12 13:39
    erco wrote: »
    (Motivational speaker and) DARPA program manager Dr. Gill Pratt said “these things are incredibly dumb. They’re mostly just puppets.”

    True dat, but with hydraulics these dumb machines can rip your arms out of their sockets.

    Good thing they have laser scanner vision. They can differentiate between us and the UPC code on a box of Corn Chex.
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