Subject:
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Re: A Generic Idea
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Newsgroups:
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lugnet.robotics
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Date:
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Mon, 6 Jan 2003 22:17:47 GMT
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Original-From:
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Steve Baker <sjbaker1@!StopSpammers!airmail.net>
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Viewed:
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763 times
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Andrew J. Huang wrote:
> Regarding PDAs and cell phones: even those with
> cameras do not have the CPU power to do image
> analysis.
My aging Agenda PDA does integer work at about the speed of
a 100MHz Pentium. Floating point performance is terrifyingly
slow though.
Since the Agenda is a couple of years old now, I'd expect
PDA's to be two or three times faster by now - so we're
probably looking at comparable INTEGER performance to a
266MHz Pentium.
> They are only really capable of storing
> the data after the hardware-based compression
> algorithms have reduced the pixels to a manageable
> lump. The analysis needed to detect motion or
> recognize objects is way beyond their
> capabilities. PDAs have roughly the CPU power of
> a 1990s PC - think back to 1990 and recall what
> kind of graphical manipulation you could do
> then - it wasn't much and it entirely consumed
> your CPU while it took 30s to think about it.
I don't think it's that bad - providing you either
find a PDA with hardware floating point - or implement
your image processing in integer math..
---------------------------- Steve Baker -------------------------
HomeEmail: <sjbaker1@airmail.net> WorkEmail: <sjbaker@link.com>
HomePage : http://www.sjbaker.org
Projects : http://plib.sf.net http://tuxaqfh.sf.net
http://tuxkart.sf.net http://prettypoly.sf.net
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Message has 3 Replies:
 | | Re: A Generic Idea
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| Yes, I think the point isn't whether or not the robot has enough oomph to recognize faces or things like that :D The point is that you can do a *lotta* fun stuff with a camera or mike in a robot, if ONLY you could give the RCX a link to something (...) (21 years ago, 7-Jan-03, to lugnet.robotics)
| | | Re: A Generic Idea
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| To get a PDA to interface to RCX is easy, i am right in thinking that TV remote is the same freqency etc as RCX? If so go to pdawin.com and get TVRemote (URL) i use version 3.1 which can learn commands, and we can display this on the PC and control (...) (21 years ago, 7-Jan-03, to lugnet.robotics)
| | | Re: A Generic Idea
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| (...) Yes - I can control the RCX from my SONY Television remote (which is a programmable one) by 'teaching' it key commands from the Lego Remote - so if your PDA can act like a learning remote - it can drive the RCX and Scout bricks. (...) Yep - (...) (21 years ago, 7-Jan-03, to lugnet.robotics)
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Message is in Reply To:
| | RE: A Generic Idea
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| Steve Baker summarized neatly: The big design issue is whether to have the brain near or far. If far, you need more communications bandwidth, but you can have a mongo brain. If near, you can minimize your investment in communications overhead, but (...) (21 years ago, 6-Jan-03, to lugnet.robotics)
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