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hey guys imagine a disaster situation

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that's so dangerous we can't send people

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in to fix the problem so what do you do

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about that well this is Robo simian and

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that's exactly what he's designed to do

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we're gonna talk all about that on this

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alright guys are here with Brett Kennedy

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he's leading the charge here on the Robo

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simian project hey Brett could you just

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tell us a little bit about Robo simian

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what were you guys trying to accomplish

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with the robot Robo see means actually a

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line of limbed robots that we've done

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here at JPL but specifically it was

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designed and built for the DARPA

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Robotics Challenge it's disaster

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response not life-saving so the exemplar

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that DARPA uses the Fukushima nuclear

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reactors after the earthquake and the

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tsunami there was a lot of damage to the

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reactor and they really needed to be

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able to get inside and do a few things

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that would made everything better and it

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could be as simple as flipping a switch

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or turning a valve so JPL is kind of

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known for making Rovers and you know

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everyone knows that Rovers have wheels

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and we kind of climb over rocks

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why did your team decide to go with

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limbs instead of wheels you know if you

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can get away with wheels wheels are

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great they're the most efficient way of

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getting around but once you get into the

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terrain that's too rough then we need to

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switch over to a different method so how

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does the robot know where it is and

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where it's going so if it can it's gonna

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use perception systems it's cameras in

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the lidar to actually build this 3d map

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and it sends that information back to

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the operator the operator then decides

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where it should go but even if it

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doesn't have good data about what its

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environment looks like it's also got

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four sensors and it's wrists and ankles

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so it can actually feel the terrain as

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it's walking as well so we have the

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capability of basically moving around by

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Braille so what exactly can it do given

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the fact that it's sort of human scale

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we can have the robot do a lot of things

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that a human can do actually as long as

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you're not too concerned about it moving

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fast what kinds of hands or end

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effectors can you put at the end of

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these limbs we went through a couple

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sets of hands and this is where we've

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ended up today it's not for dexterous

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manipulation of things but they can do

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most things you need which is to grab on

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to objects be able to pull them with a

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lot of force and also manipulate certain

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things and in particular human tools so

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look at this arm it looks pretty

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advanced actually this limb is actually

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very similar to yours and other ways

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particularly in the number of joints it

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has so even though it doesn't look like

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it it's actually about as dexterous as

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your own arm you've got seven joints I'm

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assuming seven independent motors you

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tell us a little bit about these motors

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what torque capability they have how

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fast they can go and every one of these

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joints they have exactly the same

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drivetrain this contains the electronics

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that run it the brake the motor itself

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the drivetrain which is a harmonic

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gearing in this case what's your gear

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ratio that you're getting out of that

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harmonic drive 162 one it's a pretty

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tight package really high gear ratio

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yeah I have this one little thing we can

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actually get as much torque as an f-150

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truck so I'm imagining Robo simian kind

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of crawling its way through building and

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then over difficult terrain and that's

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all happening here on the earth is it

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even possible to send us a space well

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the exact technology that goes into that

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would be different than what we haven't

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Rovers I mean today the basic robotics

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problem is the same and so yes

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absolutely we think that send these to

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the cliffs of Mars to the outside of

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asteroids a comment

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things of that nature all right we're

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all wishing the best for the Robo simian