Hi,
As part of a bigger project, I’m investigating the different technologies available to detect metal remotely.
Let’s say there is a big wall, 50x50m and made of wood. On that wall, there are many small pieces of metal, let’s say 20x20cm each, their locations on the wall is random.
The electronic equipment is located 50 meters away from the wall and its purpose is to detect the “exact” coordinates of the pieces of metal on the wall (coordinates relative to the electronic equipment).
The pieces of metal (in red on the diagram) are visible (not hidden, nor buried) but there may be fog or lack of light so “photography + image processing” can’t be used.
From your knowledge/experience, what other approach could be used to solve that problem. What sort of equipment can do that? I know nothing to that field so I’m after some good pointers to get started .
Those components would be integrated in a bigger system so they should provide some sort of interface that can be accessed by other components driving it (to be somehow controllable programmatically from software or HDL kind of stuff).
Last comment is that we can’t mark the metal objects in any way before the experiment, no access at all, we just know they are there and are the only thing made of metal on the wall.
Thanks in advance!