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Old 03-13-2008, 01:22 PM   #1 (permalink)
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New Robot: Just point and robot will grab it for you

Will robots use THIS robot to do their evil deeds?
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http://www.thestar.com/Business/article/345250

Just point and robot will grab it for you

El-E robot, unveiled yesterday, could help patients cope with degenerative disease
Mar 13, 2008 04:30 AM

ATLANTA–The El-E robot looks like something you'd see in a Hollywood sci-fi flick: It's got two lenses spaced together just like eyes and a slender 1.7-metre-tall body. It blurts out wacky catchphrases when it accomplishes its goals.

But unlike android movie stars, the El-E isn't designed to behave like a human. Rather, its focus is interacting with us. It simply grabs stuff you point at with a laser.

"The entire world becomes a point and click interface. Objects become buttons. And if you point at one, the robot comes to grab it," said Charlie Kemp, the director of Georgia Tech's Center for Healthcare Robotics and the robot's designer. "It creates a clickable world.''

The robot, which was unveiled yesterday at an Amsterdam conference, will be tested this summer in a real-world setting involving patients with a degenerative disease. Its creators – from Georgia Tech and Emory universities – won't disclose the robot's cost, but there's hope it could be cheaper than service animals such as dogs.

To command the El-E, the user points a laser at something for a few seconds. The robot responds with a beep and then zeros in on the target. Once there, it lifts a mechanical arm and grabs the object. It begins the return trip when the laser is pointed at the user's feet, and it looks for a human face before handing over what it grabbed.

Kemp said engineers are often too focused on making robots behave like people, ignoring other ways they can interact.

"How can you make robots that are actually useful? That was bugging me," he said. "And it's a hard question to answer – that's why I'm happy with this. We made technical contributions as well as something that actually helps users.''

The robot successfully fetches its target objects off the floor 90 per cent of the time, researchers said.

This summer's test will involve patients with ALS, or Lou Gehrig's Disease, which shuts down nerve cells responsible for movement.

"It will give these folks at least a level of independence,'' said Dr. Jonathan Glass, director of the Emory ALS Center and a part of the team developing the robot. "You don't have to feed it, and you can train it to do anything you want.''

Other scientists have taken notice.

"It's very impressive work," said Oliver Brock, an assistant computer science professor at the University of Massachusetts Amherst. "It's a serious and successful attempt to build a robot that can actually coexist with humans and successfully perform a task.''

El-E works by using dozens of sensors, lasers and cameras that help it find its target item and judge the grip needed to retrieve it. A mechanical crane that can grab items from the floor or shelves dominates its slender body. It rolls around on three wheels, and it's all powered by a lone Mac mini personal computer, which sits in its base.

Researchers hope the laser-directed robot could some day open doors, switch light panels and guide patients, but it still has a way to go.

The robot's arm can only carry objects up to 544 grams, and it has yet to be tested with sick patients.

Associated Press
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