Robot With Broken Leg Learns To Walk Again

Antoine Cully and fellow researchers at the Sorbonne University in Paris say they’ve developed a technique that allows a damaged robot to learn how to walk again in just a few seconds.

(Robots recover from damage by trial and error)

This robot has 18 motors to power its six legs. Consequently, its gait depends on 36 different parameters that describe things like the amplitude of the movement of each motor, the phase shifts between them, the duty cycle for each joint and so on.

The hexapod also has an on-board computer and a depth camera to estimate its walking speed. Its goal is to walk as fast as possible.

Before the robot is released into the wild, Cully and co calculate a behavioural repertoire of some 13,000 different gaits. However, they do not evaluate them; so the robot does not know how good each one is when a certain kind of damage occurs. Instead, the robot does this after it has become damaged.

So when the leg finally becomes damaged, the robot chooses a gait from the subset that minimises contact with the ground for that leg. It then measures how quickly it can walk using this gait.

It then uses this information to choose another gait, measures the resulting walking speed and feeds this information back into the model. After just a handful of tests, it can then select the best gait.

I think I saw this very idea demonstrated in a science fiction film thirty years ago. In the 1984 movie The Terminator, the Terminator robot's leg is damaged. Is the Terminator helpless? No, of course it determines a workable gait, and continues its inexorable pursuit of Sarah Connor, as seen in the following clip:

American roboticists have also worked on this problem. See Starfish Robot Shows Robotic Introspection And Self-Modeling which features one of my favorite robots, a robotic starfish, which can also determine a new gait for itself if it has a broken leg.

Via Medium.

Scroll down for more stories in the same category. (Story submitted 7/26/2014)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | | 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 ( 3 )

Related News Stories - (" Robotics ")

Scaly Yet Soft Robotic Snake
Love those robotic sneks.

Tiny Rubbery Robot To Take 'Fantastic Voyage'
I think that I will wait for other volunteers for this one.

Disney Vyloo Robots With Personality
'Let's build robots with Genuine People Personalities...' - Douglas Adams, 1979.

Self-Healing Skin For Robots
If you can't self-heal, you're not much good to us.



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

Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme.

Manned Maneuvering Unit From 1984
'The glittering little rocket bolted to the black iron behind him.'

Astronaut Gets Younger In Space
'So what we're looking for now is not an antibiotic - an anti-life drug - but an anti-agathic, an anti-death drug...'

Blockchain Used To Verify Election Results
'Any adult could punch into the phone his or her code, followed by a yes or no.'

IJOP Integrated Joint Operations Platform China's Minority Report?
'All day long the idiots babbled, imprisoned in their special high-backed chairs...'

HushMe Bluetooth Device Reinvents The Hush-A-Phone
'Talking into a hush-a-phone which he had plugged into the telephone jack...'

Ultrathin Brain Needle Developed At MIT
Putting drugs into a selected cubic millimeter within the living brain.

Tesla Semi Truck Now At Work
Why wait? Tesla Semi now hard at work.

Illustris: The Next Generation Of Universe Simulation
'This digital device was ... A machine able literally to contain the Universe Itself...'

Scaly Yet Soft Robotic Snake
Love those robotic sneks.

Cool Tinsley Lunar Unicycle Update
Great update of a timeless classic.

NASA's 'Armstrong' Soft Wearable Upper Extremity Garment
'Exact same articulation as your shoulder joint, and it holds your muscles out of the way...'

Kuri Robot Roams Your Home, Taking Pictures
'Small devices with cameras and sound equipment which could move freely...'

Tiny Rubbery Robot To Take 'Fantastic Voyage'
I think that I will wait for other volunteers for this one.

Svalbard Seed Vault (aka Doomsday Vault) Gets Upgrades
'But they existed in the Life Bank, as did virtually every plant and animal that existed on Old Earth.'

Disney Vyloo Robots With Personality
'Let's build robots with Genuine People Personalities...'

More SF in the News Stories

More Beyond Technovelgy science news stories

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

Copyright© Technovelgy LLC; all rights reserved.