Subject:
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Interresting LegoVision demo by Lego : tyrannosaure against stegosaure
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Newsgroups:
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lugnet.robotics.vc
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Date:
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Tue, 17 Oct 2000 16:25:42 GMT
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Highlighted:
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(Sorry, the original article is in french, but this Altavista translation may
help you)
see original + picture : http://www.01net.com/rdn?oid=124632&rub=1854
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The tyrannosaure rex reference mark its prey, a peaceful stegosaure which is
dandled heavily between the trees. Without hesitating, the tyrannosaure
springs, covers rather quickly the two meters which separate it from its
target, opens large its mouth and crushes the head of stegosaure. The head
falls, the tyrannosaure is immobilized.
The demonstrator of Lego enters the arena then, moves away tyrannosaure and
rebuilds stegosaure. The demonstration is made : the MindStorms robots, of
Lego, are from now on able to see and act as consequence, thanks to the new
box of extension Vision Command, including/understanding a Logitech camera, an
optical software of recognition and a kit of development.
It misses only the word!
Born from a research programme of MIT in 1989 and launched to France one year
ago hardly, the robots MindStorms de Lego are composed of bricks, gears,
sensors (contact, light and temperature) and of electric motors controlled by
a " brain ", the RCX 1.5. This microcomputer is programmable in NQC, a
very simplified alternative of the language C.
Source code of programs is written and compiled on PC (obligatorily equipped
with Windows 98 if one wants to use the Logitech camera), then transferred
in the report from the RCX by an infra-red connection.
Once the completed assembly and the programming, the RCX 1.5 is not satisfied
to carry out repetitive tasks. It can, for example, to animate a tyrannosaure
when the eye of its embarked camera reference mark a prey or to control a
ballboy of table tennis.
A true community
Advised as from 12 years, these very sophisticated toys target in practice a
rather adult public. First of all because the price of the boxes is relatively
high (the basic box, Robotics Invention System, is marketed to 1 590 francs,
while the Vision Command costs 700 francs) and because it is necessary to
have access to a computer to work out and test the programs, which is not yet
with the range of all the children.
However, these two points do not seem to slow down the development of a true
community of accros of the RCX on Internet. New robots, programs original for
the RCX, tutoriaux, forums, contest... The Web is a complement essential to
the fans of Lego MindStorms. A world limited by only human imagination.
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