 |
Robot Helicopters Learn By Watching Experts
Robot helicopters learn to fly by watching expert radio control pilots. Stanford computer scientists Andrew Ng, Peter Abbeel and Adam Coates have developed an artificial intelligence system that teaches itself to fly radio-controlled (RC) helicopters.
(Autonomous robot helicopters learn by watching expert pilots)
On a recent morning in an empty field at the edge of campus, Abbeel and Coates sent up one of their helicopters to demonstrate autonomous flight. The aircraft, brightly painted Stanford red, is an off-the-shelf radio control helicopter, with instrumentation added by the researchers.For five minutes, the chopper, on its own, ran through a dizzying series of stunts beyond the capabilities of a full-scale piloted helicopter and other autonomous remote control helicopters. The artificial-intelligence helicopter performed a smorgasbord of difficult maneuvers: traveling flips, rolls, loops with pirouettes, stall-turns with pirouettes, a knife-edge, an Immelmann, a slapper, an inverted tail slide and a hurricane, described as a "fast backward funnel."
The pièce de résistance may have been the "tic toc," in which the helicopter, while pointed straight up, hovers with a side-to-side motion as if it were the pendulum of an upside down clock.
Helicopters are notoriously difficult to fly with computers; helicopters are described as "unstable systems that require constant input". The Stanford computer scientists started by recording airshow routines by the best of radio remote control pilots. The position, direction, orientation, velocity, acceleration and spin of the helicopter in several dimensions was recorded. Then, each routine was repeated; the learning algorithms were able to discern the ideal trajectory that the human pilot was seeking.
Later, the autonomous robot helicopter was able fly on its own. The current package, which separates the computer from the RC helicopter, could be an all-in-one package on a full-size helicopter.
From Stanford's "autonomous" helicopters teach themselves to fly via The Raw Feed.
Scroll down for more stories in the same category. (Story submitted 8/31/2008)
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 (Back On) ( 0 )
Related News Stories - (" Artificial Intelligence ")
'Hello, Computer!' Google Now Highlighted at IO13
'Hello, computer!'- Gene Roddenberry, 1986.
Universal Translator: Google Translate Has 51 Offline Language Packs
He immediately turned the small shining disc of the Language Rectifier on his instrument till the pointer rested on 'French.'- Hugo Gernsback, 1911.
AI 'Doctor' System Better Than Human
'But they got him into the autodoc anyway.'- Larry Niven, 1970.
Read My Lips - Computer Interprets Human Emotion
Soon, the emotion chip.
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
MIT Robot Cheetah Video Shows Gait Transition
'The legs are long, curled way up to deliver power, like a cheetah's.'
TrackingPoint Smart Rifle
Not your typical 'smart bullet' approach.
'Hello, Computer!' Google Now Highlighted at IO13
'Hello, computer!'
Sky City's 220 Stories Are Go
'It rested among green parklands and... stood in total isolation, a glittering block of whites and flashing windows dotted with colors.'
CARMAT Bioprosthetic Total Human Heart Replacement
'George Walt's corporate existence proved the workability of wholly mechanical organs...'
Personal Sniffer Robots
'...The ticking combinations of the olfactory system of the hound.'
Physical Exam? We've Got Apps
See the future of handheld, personal medical devices.
The Interplanetary Internet, Vint Cerf Speaking
'This was the center of Interplanetary Communications.'
Drosophila Robotica, The Mechanical Fly
'... the Scarab [flying robot] buzzed into the great workroom as any intruding insect might...'
Robo-Raven Flapping Wing Robot Bird
'When he had first built them, they had been crude indeed, flying mechanisms with little more than a reflex-response unit.'
Japan's Nursing Home Robot Plan
Let's make the Roujin Z-0001 Robotic Bed!
Samsung Smart TVs With Gesture Control
'He waved his hand and the circuit switched abruptly.'
Swiss HCPVT Giant Photovoltaic 'Flower'
'...leaning against one of the slender stalks of a sunshade-photocell collector.'
Mini-Livers Made By 3D Printer
Organleggers may experience an employment downturn.
Smartphone Sensor System Tracks Gunfire
'Sound trackers on the roof could zero in on weapons action...'
Bacteria Now Make Biofuel Like Oil
'They have ... germs that eat pretty near anything, and produce oil as a waste product.'
