Rung 12 reads a code, which means somebody has to stick a code on every machine.
A plant with ten thousand assets is not going to get ten thousand new stickers — but
every one of those machines already carries a unique, high-contrast, text-covered plate
bolted to it by the manufacturer. That is an image target. Nothing has to be added to
the plant; the marker was already there.
Checking…
1 · Which asset is this plate on?
2 · The plate
Photograph the real plate, or use the generated one below to try the whole thing without
leaving the desk. Display it on another screen or print it, then point the phone at it.
A good target is flat, well lit, and busy — text and edges are what it matches on.
A clean plate with three words on it tracks badly; a scuffed one covered in stamped data
tracks well.
3 · Compile it into a target
Compiling runs entirely in this browser and the result never leaves this phone.
It took 5.4 s for this plate on a laptop; a phone is several times slower, so give it
up to a minute and do not close the page.
Targets on this phone
What happens when it is found
The asset's record appears on the plate — tag, service, location, criticality.
If that asset has a data feed, its last shift is summarised from the record itself.
If it has none, it says so.
Log an observation opens rung 12 with the tag already resolved, so what you saw is
attached to the machine you were standing in front of.