[Robotgroup] CNN: Space Robot will rise "almost like it's Frankenstein's monster coming alive"
Vern Graner
vern at txis.com
Mon Mar 10 10:09:49 PDT 2008
From CNN.com:
http://www.cnn.com/2008/TECH/space/03/10/space.shuttle.ap/index.html
Comes this article:
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Endeavour crew set to lift off, assemble robot
* Space shuttle crew will take off in early morning hours Tuesday
* Main job will be to assemble Dextre -- a $200 million
"monstrous" robot
* Robot will rise "almost like it's Frankenstein's monster coming alive"
* Dextre will eventually take over astronauts' dangerous outdoor work
CAPE CANAVERAL, Florida (AP) -- Astronauts bound for orbit this week
will dabble in science fiction, assembling a "monstrous" two-armed space
station robot that will rise like Frankenstein from its transport bed.
Putting together Dextre, the robot, will be one of the main jobs for the
seven Endeavour astronauts, who are scheduled to blast off in the wee
hours of Tuesday, less than three weeks after the last shuttle flight.
They're also delivering the first piece of Japan's massive Kibo space
station lab, a float-in closet for storing tools, experiments and spare
parts. For the first time, each of the five major international space
station partners will own a piece of the real estate.
At 16 days, the mission will be NASA's longest space station trip ever
and will include five spacewalks, the most ever performed while a
shuttle is docked there. Three of those spacewalks will feature Dextre,
which is sure to steal the show.
With 11-foot arms, a shoulder span of nearly 8 feet and a height of 12
feet, the Canadian Space Agency's Dextre -- short for dexterous and
pronounced like Dexter -- is more than a little intimidating, at least
for astronaut Garrett Reisman.
"Now I wouldn't go as far to say that we're worried it's going to go run
amok and take over the space station or turn evil or anything because we
all know how it's operated and it doesn't have a lot of its own
intelligence," Reisman told The Associated Press last week.
"But I'll tell you something ... He's enormous and to see him with his
giant arms, it is a little scary. It's a little monstrous, it is."
Dextre will be flying up aboard Endeavour in pieces, and it will be up
to a team of spacewalking astronauts to assemble the 3,400-pound robot
and attach it to the outside of the space station. That job will fall to
Reisman, Michael Foreman and Richard Linnehan.
"I feel kind of like dad on Christmas Eve, you know, opening up this
present and trying to put it together for the son or daughter and going,
'Whoa, what have I gotten myself into here with this 'some assembly
required' part of the space station," Foreman said.
Reisman, who will be moving into the space station, can't wait to see
Dextre rise from its shuttle transport pallet, rotating up "almost like
it's Frankenstein's monster coming alive."
In reality, there's nothing sinister about Dextre. The robot, in fact,
was once in the running to be the Hubble Space Telescope's savior.
Following the 2003 Columbia disaster, NASA canceled the last remaining
Hubble repair mission by shuttle astronauts because of safety concerns,
and considered sending Dextre up to do the job. The shuttle flight was
restored after a change at NASA's helm -- it's scheduled for late summer
-- and Dextre went back to being a space station assistant.
Dextre -- which cost more than $200 million -- was created by the same
Canadian team that built the space shuttle and space station robot arms.
Equipped with a tool holster, Dextre is designed to assist spacewalking
astronauts and, ultimately, to take over some of their dangerous outdoor
work.
Dextre can pivot at the waist, and has seven joints per arm. Its hands,
or grippers, have built-in socket wrenches, cameras and lights. Only one
arm is designed to move at a time to keep the robot stable and avoid a
two-arm collision. The robot has no face or legs, and with its long arms
certainly doesn't look human.
Space station astronauts will be able to control Dextre, as will flight
controllers on the ground. The robot will be attached at times to the
end of the space station arm, and also be able to ride by itself along
the space station arm's railway.
Canadian officials said they're convinced Dextre could have pulled off
the Hubble repair job, and should have no problems replacing old
batteries and other space station parts.
"It's quite surprising what a robot like Dextre can do with its sense of
touch and its precision," said Daniel Rey, a Canadian Space Agency
engineer who heads the project.
Dextre has only three tools, for now, versus the more than 100 tools
available to spacewalking astronauts, Rey said. It will probably take
months to learn how to properly use the robot; its first real job could
come next year.
Linnehan, who worked on Hubble in 2002, wonders just how much Dextre
will be able to do.
Even though it's suited for space station maintenance, astronauts are
faster, Linnehan said. As for Hubble, he said Dextre cannot compare to a
human repairman because it lacks fine motor control, and cannot think
and react to problems that might crop up.
That said, Linnehan acknowledges it's "a cool project" that reminds him
of Japanese animation shows from decades past, namely Gigantor the
space-age robot. NASA officials agree that a big part of Dextre is
learning how robots operate in space, for future exploration.
Dextre, by the way, isn't necessarily a "he."
"I tend to use 'he' because I think Dextre is a masculine name," Rey
said. "But it's a robot. It's tele-operated. It doesn't have artificial
intelligence yet. So I need to be more careful when I say 'he.' "
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--
Vern Graner CNE/CNA/SSE | "If the network is down, then you're
Senior Systems Engineer | obviously incompetent so why are we
Texas Information Services | paying you? Of course, if the network
http://www.txis.com | is up, then we obviously don't need
Austin Office 512 328-8947 | you, so why are we paying you?" İVLG
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