Further to this and Michael's comment, by automating and centrally
coordinating the trains you could potentially save a lot of power overall
a,d also things like peak demand. Knowing what is optimum acceleration to
meet timetable demands, as well as avoiding red lights can save a lot. Even
by staggering acceleration periods across the network could reduce peak
demand and hence restrict demand for infrastructure. (Same goes for
regenerative braking).
The antithesis of this is the http://en.wikipedia.org/wiki/TV_pickup phenomenon
noted in the UK when the punters put on the kettle for a cuppa all at the
same during sporting matches and such.
Regards, Martin
martinvisse...@gmail.com
On 20 October 2012 12:42, James Linder wrote:
>
> On 20/10/2012, at 9:00 AM, slug-requ...@slug.org.au wrote:
>
> >> Its primary goal is safety though, not efficiency.
> >>
> >> I want to add a linux angle, but can't think of one.
> >>
> >>
> > The powers-that-be-here don't even want you to know what can
> > actually be achieved with Linux.
> >
> > In Tokyo they have a crazy robot train (crazy for a sydney person) that
> > runs into town and back. Anyway, you can sit where the driver would
> > normally be.
> >
> > It's fully automated, and therefore, without doubt consumes less power
> > than having a human being driving the train. I say this because an
> > industrial pc having about 5w energy consumption.
> >
> > No metal is needed for the drivers compartment, or aircon, so there's
> > definitely an energy saving there.
> >
> > The trains use a Linux RTOS like QNX. Which is very popular over there.
> >
> > The Japanese systems are very safe. They look at it the other way
> > around in that when there are deaths, it's caused by human error. Not
> > the machines. I tend to agree with their perspective.
> >
> > The issue is about Jobs. The Japanese don't mind having 10x Linux
> > Engineers in preference to 10x Train Drivers.
> >
> > In Sydney, sadly, they seemingly would prefer to have 10x train drivers
> and
> > less Linux Engineers than have the balance the other way around.
> >
> > The assertion is that Linux Engineers are dangerous and train-drivers
> > and people that ride bicycles are not. We have to accept our backwards
> > looking leaders. That's just how it is.
>
> It is linux and it is interesting ...
>
> Earthquake's generate seismic waves, the fast ones are detected and STOP
> the trains before damage to infrastructure occurs and the train is hurlled
> to it's doom. Cute!
>
> James--
> SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/
> Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
>
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