[oopic] Re: New range finder needed

--- In oopic@yahoogroups.com, Shaggy <charrington@...> wrote:
>
>
> I have been working under the assumption that the SRF08 ultrasonic
range
> sensor was somewhat reliable at distances over 1 meter as a binary
pair.
> After testing two pairs extensively, the readings bounce around so
badly
> that depth perception cannot be calculated using them, though some
rough
> distances are possible after averaging for several repetitions. The
sensors
> seem pretty accurate at ranges under about 50cm, but not so much
beyond
> that.
>
> Therefore, I am looking at my options. One option is to switch to a
camera
> (like the CMUCam) and do a whole bunch of visual processing. The
other
> option is a far more accurate range finder such as a laser, perhaps
on a
> panning servo. However, after a brief search of the net, it appears
that a
> suitable laser would be over $1000. Are there any other options out
there?
> --
> View this message in context: http://www.nabble.com/New-range-
finder-needed-tp15923461p15923461.html
> Sent from the OOPic mailing list archive at Nabble.com.
>

Anything you want to do with vision will need to be off board. So
look into roborealm because it is an elegant (and free) vision
package that can handle images from USB or RF (via a hardware
attachment). There are functions for floor finding (looking for the
intersection with a wall) as well as MANY other functions.

It is a terrific package.

Richard

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