I was hoping someone could shed some light on a concept I was hoping to implement. I wanted to develop an object tracking system that would keep a camera pointed on a subject that was wearing a beacon.
My concept involves interfacing two Arduinos with Xbee. The 'beacon' Arduino would have an ultrasonic transmitter that would be activated by the 'base' Arduino which would be connected to two ultrasonic receivers spaced a known distance apart that would receive the signal. The location could be determined by knowing the time the Xbee signal was sent to the beacon and the time the ultrasonic signal was received (accounting for the speed of sound etc.). I know there would be a variable lag time for the Xbee signal, would this have much impact tracking?
What do you think? Is this feasible? I was hoping to be able to track up to about 15' if possible. Would this be too far for ultrasonic sensors?
Any input, help or criticism would be greatly appreciated.