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## Re: Sort of a Stupid Question, but...

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• Actually it doesn t sound that much harder to me that a positive taxi on a vertical plane of movement(at least going up the stairs). Obviously there would have
Message 1 of 8 , Nov 6, 2012
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Actually it doesn't sound that much harder to me that a positive taxi on a vertical plane of movement(at least going up the stairs). Obviously there would have to be a limited DOF on this taxi, where exceeding this DOF makes the robot avoid the object instead(unless it can climb walls, which would be freaking awesome). Going back downstairs would require an invert of the same function. I know it would just kill the lot of us, but these reactions would actually have to occur QUICKLY, within milliseconds in order that the robot doesnt make a turn to avoid an edge while its falling off that edge! And a three motor walker with long enough legs could easily master the stair-climbing arts granted it was equipped with this 2d perception, whereas the problem with other BEAMbots climbing stairs is that they cannot perceive the 2 dimensional plane that is the front or top face of a step because their vision is only 1 dimensional(on top of the fact that most of them simply aren't mechanically adept enough to climb stairs to begin with). Now 3d vision would definitely be a first in BEAM, and would also allow the robot to perceive sloped surfaces and process them in the same manner as steps. Namely, if the top edge of the step/slope falls out of perceiving range by the time the sensor reaches max DOF, the step/slope is considered climbable. Otherwise it is treated as an obstacle. The inverse is true for heading down a step/slope: if the bottom edge of the step/slope falls into perceiving range by the time the sensor reaches max DOF, then it is considered traversable. Basically the same rules apply to climbing both stairs and slopes, only one needs 3d perception, while the other only requires 2d perception.

And if your simply not interested in that, something I simply can't fathom, just use rotating augers(screws) positioned lengthwise the vehichle, maybe with small wheels lining the rim, and this setup, if large enough, very easily rolls up and down the stairs. It's also great as an all-terrain vehichle, FYI.

--- In beam@yahoogroups.com, "Zozzles T. Freep" <zozzles@...> wrote:
>
> On Nov 2, 2012 7:52 AM, "dirrenedo" autisticando@... wrote:
> >
> > In spite of the fact that the father of BEAM robotics has created the
> RoboSapien and the RS Media, I'd have to voice a resounding NO! So what if
> the RoboSapien could conserve energy from one movement to another, that is
> hardly an overall BEAM device by any definition and the rumor at one time
> (and who knows, it might be true even still), the RS Media runs off of
> Linux!!!
>
> Ask the guy who does the clever "robo-dance"' stuff. Sadly, I don't recall
> I don't recall his name or URL, but he was doing some magnificent work
>
> Heck, I threw down the glove of challenge at least five years ago for
> someone to create a BEAM-Bot that could sense stairs and go up and down
> them as well as perform planar translational movement.
> it. Ain't happened yet (unless someone is keeping it secret.)
>
> I'd much prefer shoving a stack of e-Bay Roombas with a stack of Arduinos
> or a bunch of the nearly micro-Arduinos from Solarbotics - at least Roombas
> supposedly ha top-edge of stair detection and if you take the brushes off,
> a huge amount of battery power.
>
> The BEAM Heretic
>
> >
> > I'm really new to BEAM robotics (and robotics in general), so I'm pre
> naive to the various concepts in general.
> >
> > Ever since I became aware of BEAM technology, I have wondered whether or
> not it would be possible to construct a bot that was humanoid in nature.
> Something that would be very similar to an automated doll with emergent
> behaviors, if you will. The basic question is this: is it even possible to
> construct something like this? I know that people have constructed bipedal
> walkers that stand upright, but that is as far as it has ever gotten, to my
> knowledge.
> >
> > Anyways I'm just very curious about building a doll-like bot using BEAM
> technology. Perhaps it isn't impossible, but right now it probably could
> only exist in theory.
> >
> > Guy
> >
> >
>

• Oh, and also, WE HIT 90 POSTS LAST MONTH!!!! That s more than we ve had in one month in 3 years! THREE YEARS! Maybe we can wedge in like a hundred or so this
Message 2 of 8 , Nov 6, 2012
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Oh, and also, WE HIT 90 POSTS LAST MONTH!!!! That's more than we've had in one month in 3 years! THREE YEARS! Maybe we can wedge in like a hundred or so this month? In fact... CHALLENGE!!*

*no spam posts, actual BEAM discussion.
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