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 ")

X2-VelociRoACH Cooperates To Launch Tiny Drones
Little robots cooperating can do big tasks. Eventually.

An 'Ethical Black Box' For Robots?
Explored by science fiction authors.

Kino Project Roaming Personal Fashion Robots
'Most of the crew have the tiny imp ride on their shoulder...' - Robert Forward, 1985.

First Crewless Ship? Umm
Autonomous Spaceport Drone Ship

 

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

Will A Steel Umbrella Stop Russia?
'Everyone was aware that the damned platform was wandering around in its own orbit...'

EVE Artificial Womb For Lambs (For Now)
'In the crimson darkness, stewing warm on their cushion of peritoneum and gorged with blood-surrogate and hormones...'

TIKAD Armed Drone Ready To Fight
'Each a television eye and a sonic stunner...'

Bees Royal Jelly Helps Wounds Heal Faster
'An alien drug... used by an insect race.'

NASA Wants To Make Oxygen On Mars
'They plop down on the Red and if the dust is deep enough ... they burrow in...'

Hackers Insert Malware Into DNA
'They tied the memory to the bloodline and that was their record!'

X2-VelociRoACH Cooperates To Launch Tiny Drones
Little robots cooperating can do big tasks. Eventually.

'Do Not Pay' Chatbots To Replace Law Firm Associates?
'I want my lawyer program.'

MULTI Model Of Star Trek Turbolift
Cool prototype video!

A Look Into The Future Of Spacecraft!
Ever wonder how you look when you enter a new part of a spacecraft?

An 'Ethical Black Box' For Robots?
Explored by science fiction authors.

Dadbot Digital Immortality
'A hardwired ROM cassette replicating a dead man's skills...'

Should We Permit Computers To Create Their Own Language?
'Talk Between Robots radio...'

Breakthrough Starshot Sprites Yearn For Alpha Centauri
'Whoever launched it fired a laser cannon...'

Kino Project Roaming Personal Fashion Robots
'Most of the crew have the tiny imp ride on their shoulder...'

Astronaut Exercise Video, Predicted By SF Writers
'Joe got out the gravity-simulator harnesses.'

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.