Subject:
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Re: DISTRIBUTED/PARALLEL CLUSTER for legOS through n*RCX
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Newsgroups:
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lugnet.robotics.rcx.legos
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Date:
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Fri, 17 Jan 2003 15:18:59 GMT
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Viewed:
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3333 times
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Nick,
What you propose it's another way, and of course, should work, but we
might have to create another software layer over the current operating
system of the RCX (of course, legOS), and we would loose 1 sensor per RCX.
What I was trying to explain is, as you might know, legOS, provides support
for infrared IP networking (using the IR channel that the RCX has infront of
it) (as far as I know, I've not used until now, because I just have one RCX,
although, a friend of mine, will lend me his RCX, for this project). So,
because the communication between IR is not reliable (because of the air,
that provokes lose of packages, and depends on the distance, and position of
each RCX), what I proposed was to use an fibre optic network to connect all
the RCXs (using this IR port), and avoid the problem of distances and the
air. So we might distribute the load (and sensor processing tasks) through
the network. Now, originally the RCX was designed for a master/slave
communication, where the PC is the master, or another RCX is the master. So
that's what we would have to apply here, one RCX should arbitrate the
communication, and decides who talks and who don't. Just like an I2C (inter
integrated circuit) networking model.
Any comments, please let me know.
Best Regards,
CarlosLuis Rendon M.
"Nick Tarleton" <nickptar@mindspring.com> wrote in message
news:H8u29s.59p@lugnet.com...
> CarlosLuis Rendón M. wrote:
>
> > Yes Kekoa it's a bottle neck, as I wrote on the original message, the • main
> > idea is to distribute the load, with the MINIMUM amount of network
> > traffic. I think that all the RCX should be connected through fibre
> > optics, in order to implement the comunication. I think that the idea of
> > Mark, is suitable, to implement a master/slave model.
> An interesting idea. Presumably a light sensor alone would suffice, as it
> could be switched between active/passive mode to turn the LED on/off. You
> couldn't get high bandwidth, but there wouldn't be interference. Also, • this
> would take multiple sensor inputs.
>
> --
> "I love deadlines. I especially love the whooshing sound they make as
> they go by."
> Nick Tarleton - nickptar@mindspring.com - PGP Key ID: 0x6B9A9D44
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