Subject:
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Re: Vision on the Handy Board?
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 10 Mar 1999 09:04:49 GMT
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Original-From:
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Stefano Falconetti <falconetti@[nospam]sigma.it>
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Viewed:
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13954 times
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Excuse me what is it a CAN controller ?
Stefano
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> From: Thomas Hauri <har@zhwin.ch>
> To: Bill Denzel <wdenzel@polymail.cpunix.calpoly.edu>
> Cc: Handyboard@Media. Mit. Edu <handyboard@media.mit.edu>
> Subject: Re: Vision on the Handy Board?
> Date: 10 March 1999 09:29
>
> Hi Bill
>
> we are using a NewtonLabs cognachrome system on one of our model cars.
> The car is equiped with a Handyboard, a cognachrom system, a camera, and • a
> couple of RS232 to CAN converters.
> Our Handyboard has a CAN controller attached to it for faster • communication.
> The problem we are having now is that the Handyboard seems to be too slow • to
> handle the data from the cognachrome system although it's only being • transmitted
> at 9.6kbps.
> This model car then tries to follow a certain object trained to the • system. But
> as mentioned above the control algorithm or system seems to be kind of • slow.
> We are right now working on the algorithems to make the system faster.
> The cognachrome system is some nice piece of equipment. It just needs a • serial
> port on the Handyboard that has a speed of a minimum of 9.6k.
>
> Attaching a camera directly to the handyboard (using some sort of • framegrabber)
> would ask too much of the 6811 I think althoough I have never tried it. • Maybe
> some basic object recognition might work depending on the resolution of • the
> picture. Maybe some 20x20 or similar picture could be analyzed within a • useful
> of time. But I think IC code is much too slow for that kind of business. • Some
> compiled C or assembler might do the job.
>
> Mybe someone else knows more.........Let me know.
>
> cu Tom
>
> Bill Denzel wrote:
>
> > Has anyone tried to connect some sort of a camera to the HB? Would I • be
> > asking too much of the 6811 processor to do some simple pattern • recognition?
> > I was just curious to what extent I could push my board to. Thanks for • any
> > info!
> >
> > Bill Denzel
> >
> > Senior Mechatronics Student
> > California Polytechnic State University
> > San Luis Obispo
>
> --
> Thomas Hauri
> ZHW Zuercher Hochschule Winterthur
> University of applied sciences
> Technikumstr.9 /PF
> CH-8401 Winterthur
> Switzerland
>
> Phone : +41 52 267 74 79
> Fax : +41 52 268 74 79
> Mail : har@zhwin.ch
> HP : http://www.zhwin.ch
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