Mapping a Room with an IR Array

The basic premise of my project is to use an array of IR sensors placed at various points in a room to detect people. There's no need for exact precise locations, just a general location of "objects."

The data would then be used from the various IR sensor locations and then interpolated in Processing to close the loops and create a closed vector object:

Can anyone point to some links to setting up the IR arrays? Also are some sensors better suited than others? I will need a distance of about 20-30 feet depth per sensor (The room will be about 30 feet x 30 feet).

Cheers!

  • Jim

A good quality thermal imaging camera can detect individual people from above, but be prepared to spend several thousand dollars for one.

IR arrays containing just a few elements won't work over distances, as suggested by your diagram, because each element returns the average temperature of its entire field of view.