Mail Archives: djgpp/2002/05/24/03:46:11
Hi, all!
I thought not many people prefer to deal with plain DOS today but I'm
wrong, I see here many good fellows! We use DOS for our system on
MicroPC. Why DOS, not Linux, QNX, VxWorks, others? Because it has very
little image (~100 kb), very fast reboot in 1,5 seconds, allows direct
access to external devices, it is included in MicroPC set (free :-)),
it may be installed in several minutes by non-tech man following by
simple instruction.
As for my last project, we measure geometric parameters of wheels of
train carriages (freight cars) at railroad in real-time while a train
is going at 50 mph up. We can detect now very small defects of wheels
like "trimmed" places (it happens often when a train stops in
emergency case) and "rolled" places on wheel ledge, and so on. It
helps to transport by the railroad safely. I hope all people really
understand what main SAFETY on the railroad (Amtrak...).
We have several computers linked by Ethernet, each reads ADC data from
laser sensors (about 2 Mb raw data in 1 second at 100000 Hz), store
data for specified time period and then transfer it to the main
computer which processes data to find defects, in general by
treiangulation methods. It is very simple task (of course, to program
it, not to process data!) and DJGPP+WATTCP is very good solution in my
opinion.
Thank you very much for your advices! It gives me hope. :-) I will
check my computer's settings and environment.
Alex
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