Starfish Robot Shows Robotic Introspection And Self-Modeling

A new four-legged robot can automatically synthesize a predictive model of its own topology (where and how its body parts are connected), and then successfully move around. It can also use this "proprioceptive" sense to determine if a component has been damaged, and then model new movements that take the damage into account.


(Starfish robot and friends [L->R, Zykov, Bongard, Lipson])

In their article, Josh Bongard, Victor Zykov, and Hod Lipson describe their experiment:

We demonstrate, both computationally and experimentally, how a legged robot automatically synthesizes a predictive model of its own topology (where and how its body parts are connected) through limited yet self-directed interaction with its environment, and then uses this model to synthesize successful new locomotive behavior before and after damage. The legged robot learned how to move forward based on only 16 brief self-directed interactions with its environment. These interactions were unrelated to the task of locomotion, driven only by the objective of disambiguating competing internal models. These findings may help develop more robust robotics, as well as shed light on the relation between curiosity and cognition in animals and humans...


(Starfish robot introspects, modeling itself)

If the robot is damaged, it can sense the problem and attempt to compensate. The robot has tilt and angle sensors in all of its joints; readings from these sensors are used by the robot to create a self-image. If sensors indicate that a part is missing or damaged, it changes its image of itself and moves on.


(Starfish robot top view)

As for sf references, everybody remembers the HAL-9000 unit that ran the spaceship in 2001: A Space Odyssey. HAL was also able to sense problems in the ship and then get one if its servants (the human astronauts) to install new components, if necessary.

Despite their achievement, the researchers remain modest in the face of nature. "We never officially named it, but we usually refer to it as the Starfish robot, even though a real starfish has five rather than four legs," said lead researcher Josh Bongard, now at the University of Vermont. "Also, a real starfish is much better than our robot at recovering from injury, because it can actually regrow its legs."

Update 24-Nov-2006: See a remarkable Starfish robot video.

Take look as some earlier work by Lipson and Zykov et al in this article - Self-Replicating Modular Robots. More materials here, including a video, as well as here.| Thanks to an anonymous reader who suggested this article.

Scroll down for more stories in the same category. (Story submitted 11/17/2006)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 4 )

Related News Stories - (" Robotics ")

Flying Dragon Robot Transforms In Mid-Air
Terrific prototype video.

MXene Hydrogel Skin For Robots Flexes And Senses
'The plastex swam and whirled like boiling toothpaste...' - JG Ballard, 1962.

Drywall Robot Looking For Sheetrock
Sheetrockers have sure changed since my day. Speaking as someone who as done this, I welcome robots.

Robots Help People Get Dressed, As Predicted In 1931
Yes, people of the future, robots will dress you.

 

Google
  Web TechNovelgy.com   

Technovelgy (that's tech-novel-gee!) is devoted to the creative science inventions and ideas of sf authors. Look for the Invention Category that interests you, the Glossary, the Invention Timeline, or see what's New.

 

 

 

 

 

Current News

Spicy Tomatoes Created With Genetic Engineering
How about mashed potatoes and brown gravy?

Driverless Hotel Rooms Predicted In 1828
'Did you never see a moving house before?'

Yandex Self-Driving Taxi Is Very Smooth
'The big car was slowing down, its computer brain sensing an exit ahead.'

Shrimp Actually Made Of Algae Is A New Wave Food
Bring in that crop algae.

Cosplay Style Wings Could Work On Moon
'They're lovely! - titanalloy struts as light and strong as bird-bones...'

Tesla Model 3 Has Outside Speaker Grille
Robert Heinlein does it again.

Arizona Luddites Attack Self-Driving Vehicles
'Trucks don't drive by themselves...' Or do they?

Organaut! Russians 3D Print Living Tissue In Space
'For a while your colonists will have to come up [to orbit] to the Hospital...'

WINE Spacecraft To Extract Water From Asteroids
'Yes, strangely enough there was still sufficient water beneath the surface of Vesta.'

Japanese Swordsmiths Take On Asteroids
'... a tiny, rocket-powered projectile, drove towards the mysterious bulk.'

Saturn's Rings To Vanish, Let's Mine Them While We Can
'...the valuable shards of what had once been satellites.'

Humans Could Take Up A LOT Less Space
We'd have a lot more room for gardening...

Implosion Fabrication Shrinks 3D Objects To Nanoscale
'Carter had watched miniaturization a hundred times...'

GMO Houseplant Cleans Your Air
Removes compounds too small to be captured by a HEPA filter.

Nova Meat Can 3D Print Your Dinner
Printing out chicken nuggets.

MIT Scientists Create 'Peek-a-Boo Prober' From Jetsons
Well, George, it's the latest thing.

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.