Sorry if this is a real newbie question, but I need some help figuring out how to use IR sensors.
I need to be able to track the location of a moving object from above. I'm told this can be done using an infra-red beam attached to the moving object, which would be picked up by a sensor mounted overhead. My problem is that I don't know how to generate an IR beam, nor what kind of sensor would read it.
I've done this in the past with a colour video camera above and the moving object wearing a coloured light. But this time, the ambient light levels will be too bright, so I think IR might be the way to go.
Thanks for your help.