I don't see any way for any of these solutions to know whether there was a badge in the room. How do you envisage that part working?
The nurse call system works with IR sensors as well as motion detection. If the system sees motion without the IR picking up a badge, it can trigger a 24v relay that I was planning on using to trigger the Arduino.
I suggest you do more research on current network and security cams. They can send emails with pix when motion is detected, record to DVR units, and more
Like I had stated before, since the motion detection on the current out of the box security cameras can not tie back into the system this is not a feasible option for us. We need the nurse call system to trigger the camera so that we have the record of the movement in the room.