Subject:
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Re: Anyone there?
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Newsgroups:
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lugnet.robotics.tele
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Date:
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Mon, 14 Jan 2002 16:43:06 GMT
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Viewed:
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3896 times
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In lugnet.robotics.tele, John Barnes writes:
> Isn't the IR system that the RCX already uses wireless?
> Or do you mean radio as opposed to IR?
> If you mean radio, what aspect of RCX communications do you wish to
> transport via radio - data that usually goes via IR? - some form of
> information derived from the I/O ports?
We mean radio, and we want to have a system that is invisible to the lego
software (ideally), so that everything that the IR can do, we can do with
much extended range. In addition, we want to have wireless digital video and
maybe audio as well ( for higher bandwidth media). It would be excellent if
we could get drivers that would allow these to be fed into Robolab 2.5...
> What wants to be on the other end of the connection? - another RCX? - the PC?
> - some kind of hand held device?
I would say yes to all. We would like it if we could extend the LegOS
networking by having the comms devices able to distinguish between different
packets and addresses. Ideally comms with a PC/handheld as well as comms
between robots.
> Does the comunication need to be two way or one way? If one, then in what
> direction?
Two way. There are currently three approaches that we are considering, all
of which involve some radio tech hooked into a slave processor, which then
passes on packets through IR to the RCX:
1) Serial RF Modem hooked up to a TINI processor with software collisions
(but needs a hardware IR extension), but no vision.
2) Handspring visors with TDK Bluetooth and the Springboard Camera (built in
IR link), but bluetooth is not easy to program.
3) Compac iPac with IEEE 802.11b wireless ethernet cards (11mbps!!) and a
serial/usb quickcam (built in IR but very heavy and power hungry!)
> Sorry about all the questions, but I have already investigated most of
> possibilities. I just wanted to know which one you're interested in.
> JB
No, thanks for the questions. We would appreciate advice on avoidable pitfalls!
Mike
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Message is in Reply To:
 | | Re: Anyone there?
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| (...) Isn't the IR system that the RCX already uses wireless? Or do you mean radio as opposed to IR? If you mean radio, what aspect of RCX communications do you wish to transport via radio - data that usually goes via IR? - some form of information (...) (23 years ago, 11-Jan-02, to lugnet.robotics.tele)
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