Subject:
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Re: GPS Reality?
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 11 Apr 2005 12:30:07 GMT
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Viewed:
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1300 times
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I think by setting many mini Darpa challenges, we can set the larger
hobbyist community on it, and somebody is bound to come up with some
crazy yet neat solution we havent yet. As I see it - even if nobody
actually hit the goals, by awarding the teams who get closest on an
annual or bi-annual competition, you can normally count on the
competition getting fiercer each year, and you have the technology
evolving.
Orion
--
http://orionrobots.co.uk - Build Robots
On Apr 11, 2005 5:02 AM, Steve Baker <lego-robotics@crynwr.com> wrote:
> John Barnes wrote:
>
> > I am just hoping that sooner or later there's going to be a breakthrough, but I
> > cannot imagine what kind of technology it might involve. RF and ultrasonic
> > solutions are plagued by multipath problems and light suffers obscuration.
> > Electrostatic and magnetic fields are only good for a few feet unless large
> > energies are used.
<snip>
> I think it's all about using MULTIPLE techniques - and having fallback
> strategies when one or more of them fails. This isn't a particularly
> neat or easy solution - but it's within our technological grasp.
<snip>
> But everything depends on the environment. What I just described would
> be great for a robot vacuum cleaner - but would be hopeless for a robot
> that cleaned out your air conditioning ducts. However, in that case, you
> could put bar codes every foot or two along the duct and have the robot
> read that code to know where it is whenever it happens to pass one of them.
> Between accurate position fixes, it would again have to use speed and direction
> estimates.
>
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Message is in Reply To:
 | | Re: GPS Reality?
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| (...) Humans and most animals have evolved to solve this navigation problem. The result isn't 100% perfect (as anyone who ever got lost walking in the woods will tell you). They use their eyes and a continually updatable mental map. That's the ideal (...) (20 years ago, 11-Apr-05, to lugnet.robotics)
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