🚀 go-pugleaf

I'm wanting ideas for a device that can determine the location of
a group of objects, and their distances apart, by non-invasive means.

Something akin to a metal detector, that can tell you where the coins
are, and how far apart they are, although it won't be working with coins.

NOTE: the objects are not ferrous, or metallic, so a magnetic device is
probably out of the question.

Something based on video might work, but there are parallax effects to be
considered when the unit is operated at an angle.

The objects will all be on a flat plane, and the measuring unit should be
able to measure from any angle and still be accurate, which suggests some
kind of radio or other similar device.


Any ideas greatly appreciated. Thanks.


Geoff Thomas.