Subject:
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Re: Mindstorms Automatic Train Control Questions
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Newsgroups:
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lugnet.trains, lugnet.robotics
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Date:
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Sun, 28 Oct 2001 18:22:43 GMT
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Viewed:
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173 times
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David Niemann wrote:
>
> Hello,
> I am building a Lego subway line and I want to try to automate it. I am new to
> Mindstorms and I do not know how to get started. I saw there are now several
> starter sets, and three versions of the RIS. What I want to do is run 3-4 two
> car trains simultaneously on my two track layout, having them automatically
> speed up, slow down, and stop at each station for a few seconds. I might also
> try having a switch track at the end of the line change direction each time a
> train enters and leaves that station (so the train can cross to the other track
> at the terminal station). Does this all sound possible? If so, which set would
> be the best for me to start with? Will I need a seperate RCX for each train?
> Also, I seem to remember reading something about the RIS version 1 having an AC
> adapter and the RIS 1.5 and RIS 2 needing batteries. I think it said the RIS 1
> could control a train stationarily, but the RIS 1.5 or 2 would need to be
> onboard the train. Is this true?
>
> Thanks in advance for any help you can give me.
>
> David
I do train automation all the time. Reed Switches work well. You CAN use
one RCX for every 3 stations. That includes slowing down the train and
stopping it.
I live near a Skytrain and the entire system works off of computer
controlled trains that run on elevated tracks.
Isolate each section of track near a station. With the sensor beyond the
outer most part where the train comes in first. (So you can detect
another train coming and get the first one out of there)
The most I've done was 3 trains and 3 stations (one RCX) but it worked
very well.
See Larry's post on how to end the stations and track. It's a good plan.
Dean
--
Dean Husby
LUGNET Member #320
TFM's LEGO Workshop - http://www.akasa.bc.ca/tfm
The Vancouver LEGO Club - http://www.akasa.bc.ca/vlc/
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