Subject:
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Re: Proximity detection?
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Newsgroups:
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lugnet.robotics.spybotics
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Date:
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Thu, 20 Feb 2003 14:08:19 GMT
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Viewed:
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6857 times
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Thanks for the reply, André. I've read that the IR emitters are "low-power".
Does this mean the red LED on Spybot would have a longer range than the IR
emitters if used in proximity detection? Since the LED is recessed, I guess is
would have a narrower beam than the IR. Maybe using both IR and LED...
Is there a way to control the IR emitters directly? Is there a way to read the
IR detectors directly? I'd like to be able to use them as Ralphs Hempel
suggests here: http://news.lugnet.com/robotics/spybotics/?n=148, but where the
"source" is any reflective object.
André Koopman wrote:
Hello Brian,
As far as I know. Spybot reacts on the IR transmissions from the controller
or an another Spybot. But perhaps you can let the Spybot transmit RCX
messages and receive the reflections from a static object via the light
sensor on the back of the Spybot..
Have fun
André Koopman
In lugnet.robotics.spybotics, Brian B. Alano writes:
> I tried, but I've reached the limit of my ability and patience (I'm not sure
> which ran out first).
>
> This much I know: the Spybot can do proximity detection if what it is detecting
> is a well-defined IR-emitting object such as a Spybot controller or another
> Spybot.
>
> This I don't know: can it detect passive objects, such as walls and cats, using
> its IR detectors?
>
> Try as I might, I couldn't find decipherable reference to the IR detectors in
> the spybot .h files. Is there another place I should have looked?
>
> Thanks to Dave Baum, John Hansen, Mark Ferris, and André Koopman for their work
> so far! :)
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Message has 1 Reply:
 | | Re: Proximity detection?
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| (...) Just to report my initial findings using the rear LED and light sensor for proximity detection: Overall results are unsatisfactory. Even under the best circumstances, it could not reliably see the LED reflected against my blue leather sofa. I (...) (22 years ago, 24-Feb-03, to lugnet.robotics.spybotics)
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Message is in Reply To:
| | Proximity detection?
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| I tried, but I've reached the limit of my ability and patience (I'm not sure which ran out first). This much I know: the Spybot can do proximity detection if what it is detecting is a well-defined IR-emitting object such as a Spybot controller or (...) (22 years ago, 17-Feb-03, to lugnet.robotics.spybotics)
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