Evolutionary Robotics To Design Better Robots

Robots that are able to change their body forms while learning to walk developed into more robust robots, according to University of Vermont roboticist Josh Bongard.

Bongard created simulated robots and physical robots that changed their body forms while learning to walk. The evolving robots learned to walk more rapidly than those with fixed forms.


('Body change... actually helps us design better robots')

“But we don’t know how to program robots very well,” Bongard says, because robots are complex systems. In some ways, they are too much like people for people to easily understand them.

“They have lots of moving parts. And their brains, like our brains, have lots of distributed materials: there’s neurons and there’s sensors and motors and they’re all turning on and off in parallel,” Bongard says, “and the emergent behavior from the complex system which is a robot, is some useful task like clearing up a construction site or laying pavement for a new road.” Or at least that’s the goal.

Using a sophisticated computer simulation, Bongard unleashed a series of synthetic beasts that move about in a 3-dimensional space. “It looks like a modern video game,” he says. Each creature -- or, rather, generations of the creatures -- then run a software routine, called a genetic algorithm, that experiments with various motions until it develops a slither, shuffle, or walking gait -- based on its body plan -- that can get it to the light source without tipping over.

“The snake and reptilian robots are, in essence, training wheels,” says Bongard, “they allow evolution to find motion patterns quicker, because those kinds of robots can’t fall over. So evolution only has to solve the movement problem, but not the balance problem, initially. Then gradually over time it’s able to tackle the balance problem after already solving the movement problem.”


('Lego robot built as proof of concept)

Science fiction writers seem quite cautious about the idea of robots that evolve on their own. In his 1953 short story Second Variety, claws that come up from underground seem to demonstrate machine evolution:

The new varieties of claws. We're completely at their mercy, aren't we? By now they've probably gotten into the UN lines, too. It makes me wonder if we're not seeing the beginning of a new species. The new species. Evolution. The race to come after man."

More recently, Rudy Rucker described boppers, self-reproducing robots that changed their shapes at will:

In the shaft's great, vertical tunnel, bright beings darted through the hot light; odd-shaped living machines that glowed with all the colors of the rainbow. These were the boppers; self-reproducing robots who obeyed no man. Some looked humanoid, some looked like spiders, some looked like snakes, some looked like bats. All were covered with flickercladding, a microwired imipolex compound that could absorb and emit light.

If you're interested in robots that are able to deal with changes in their shape, read about the starfish robots created at Cornell university; these robots walk after conceptualizing their own structure.

From University of Vermont press release.

Scroll down for more stories in the same category. (Story submitted 1/20/2011)

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 ( 0 )

Related News Stories - (" Robotics ")

Button-Pushing Robots Have Taken Our Jobs, Thankfully
'The ten forked ends of each arm commenced a rattling pressing of the buttons.'- Schachner and Zagat, 1931.

Small Molecule Walker Takes First Steps
'The bits were in motion.'-- Philip K. Dick, 1955.

New 'Smart-Skin' Senses Pressure, Humidity, Heat
'You can even sense with your fingertips...'- Martin Caidin, 1972.

Flying Robot Waiters From Infinium Robotics
'It was a smooth ovoid floating a few inches from the floor...'- H. Beam Piper, 1962.

 

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

Smart Window Tints, Powers Itself
'The polawindow, which he tuned to clear transmission.'

A Basic Income TED Talk
'They de-emphasized what lack of work would do to Mr. Everyman'

What Can Magic Leap Expect From New 'Chief Futurist' Neal Stephenson?
'The goggles throw a light, smoky haze across his eyes...'

Should SETI Talk To Molecular Cloud Barnard 68?
'I myself am building basic chemicals at about 10,000,000,000 times the rate at which building is occurring on the whole ... surface of your planet.'

LikeAGlove Smart Garment Knows Your Size
'The tailor set moving a mechanism...'

EXACTO Bullets Change Course In Mid-Air
'This little weapon ejects a rather ingenious missile...'

Button-Pushing Robots Have Taken Our Jobs, Thankfully
'The ten forked ends of each arm commenced a rattling pressing of the buttons.'

Puls 'Smart Watch' Replaces Your Cell Phone
Even before Dick Tracy, there were Ideas about this.

Small Molecule Walker Takes First Steps
'The bits were in motion.'

US Navy Laser Ready For Use
Fifty years from cartoon to reality.

Fast Lightweight Autonomy Indoor Drones For DARPA
'the Scarab buzzed into the great workroom... and sought the security of a shadowed corner.'

Ninebot One Self-Balancing Wheel
'It had been a long time since the Chief Engineer had ridden one of these silly-looking little vehicles...'

FuturICT Knowledge Accelerator And Psychohistory
'The reactions of human conglomerates to fixed social and economic stimuli...'

Stellar Navigation Based On Network Analysis
'We are a traveling people. We need a travel station here.'

New 'Smart-Skin' Senses Pressure, Humidity, Heat
'You can even sense with your fingertips...'

Mimo Baby Monitor
'In every diaper there is a fine copper wire.'

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.