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 | 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 ( 3 )

Related News Stories - (" Robotics ")

Tesla Will Have Metal Gear Snake Autocoupler, Musk Confirms
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine, in spite of its metallic glitter.' - HG Wells, 1898.

I Love Ceiling-Mounted Robots
'Immediately an enormous apparatus fell on to her out of the ceiling...' - EM Forster, 1911.

Salto Jumping Robot Now Sticks Landing!
'Lucky touched the leap knob and the hopper's leg retracted.' - Isaac Asimov, 1954.

It's Time For Robots With Soft, Sensitive Skin
Sure, solid metal skin robots looked great once - like in science fiction movies of the 1920's.

 

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

Tesla Will Have Metal Gear Snake Autocoupler, Musk Confirms
'Its motion was so swift, complex, and perfect that at first I did not see it as a machine, in spite of its metallic glitter.'

Starlink Satellites Leading Edge On-Orbit Debris Mitigation
Propulsion-assisted orbital decay, brought to you by SpaceX.

Healight Ultraviolet Endotracheal Device Has Covid-19 Treatment Potential
'He applied the tip of the instrument to the interior of the wound...'

Parents Use AI To See One Last Message From Their Deceased Son
'...what's to keep me from showing face, Man?'

Satoshi Tomizu Creates Pocket Universes And Worldcraft Bubbles In Glass
'The Worldcraft bubble glittered, catching the light...'

Space Hero Inc. Offers Trip To ISS As Reality Show Prize
'This is Elmer Schmitz, presenting to you the finalists in our Aviation Quiz Program...'

I Love Ceiling-Mounted Robots
'Immediately an enormous apparatus fell on to her out of the ceiling...'

Armano Remote Control Excavator
'The bulldozer moved through the... mine... '

OK, NASA 3D Printer Of Food Not Yet Star Trek Food Synthesizer
Maybe not, but we're seeing definite progress.

Kelly Clarkson Show Like Black Mirror '15 Million Merits'
'These people are pieces of software called avatars.'

Salto Jumping Robot Now Sticks Landing!
'Lucky touched the leap knob and the hopper's leg retracted.'

Gyroscopic Median-Straddling Mass Transit Vehicles
'It was among these leviathans that the little gyrocar was daring to thrust its puny self...'

Bigrating Laser Beam-Riding Light Sail Is Self-Correcting
'That sail will be twenty thousand miles at the wide part.'

ISS Astronauts Test Estee Lauder 'Advanced Night Repair' Skin Serum
'Out in the New Moon, just ask for what you want...'

LG Wing Twisting Smartphone Might Be Fun
'A polycarbon screen unfurled...'

Mushroom Coffin Returns You To Nature, Naturally
'She touched the leaf. She was wanted.'

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.