9 Jun
2025
9 Jun
'25
1:01 p.m.
On Mon, Jun 02, 2025 at 03:14:30PM +0200, Steffen Nurpmeso wrote:
Alexander Schreiber wrote in
<aDxwjRhrUNJ5-Dm-(a)mordor.angband.thangorodrim.de>:
|On Sun, Jun 01, 2025 at 12:00:11AM +0200, Steffen Nurpmeso wrote:
|> There are surely useful tasks for AI, when it is driven with green
|> energy, and after is has been fully understood.
|
|What is currently being sold as "AI" is mostly LLM (Large Language
|Models), which are - to grossly simplify things - massive brute-force
|pattern matching engines.
|
|There are plenty of use cases where a well setup pattern matching engine
|is exactly what you need. My favourite example: SBB (Swiss Railways)
|uses "AI" (an in-house trained pattern matching model) to sift through
|the massive incoming stream of noise recordings from rail mounted
|vibration sensors, to identify (by matching known qualified patterns)
|those caused by damaged train carriage wheels. Additional support
|infrastructure then identifies train, carriage, wheel and notifies
|the owner/operator to fix the wheel - before gets worse and does
|more damage to the rails.
That is possibly a great thing. I can assure everybody that Swiss
freight trains pass by here in the many dozens / hundreds each
day, and they are very well maintained. Most often they are
quieter than even the much light German passenger trains.
Ah, but there is a difference: Swiss (SBB & Co.) passenger trains
are very quiet by design - because they carry passengers (aka
"cargo that can complain"). Swiss cargo trains are slowly getting
there as the rolling stock is replaced, but they were _not_ designed
to be quiet, as cargo tends not to complain.
I say possibly because i could imagine sensors in the
locomotive
should be capable to detect vibration irregularies?
Won't work, because a sensor in the locomotive will have a hard time
recording noise from the end of the train that might be 100+m away.
The setup described about grabs a vibration recording of every wheel
as it passes the rail-mounted sensor and (with the help of other data
sources) the system then can identify the train/carriage/wheel.
Not that
i know. But vibrations is understated given the hammerings. Does
this really need sound recordings? Interesting.
Well, it's vibration recording .. which is what sound is, just at possibly
a different frequency range that what humans hear.
Kind regards,
Alex.
--
"Opportunity is missed by most people because it is dressed in overalls and
looks like work." -- Thomas A. Edison