so the robot/bag knows to stop before running down the user
Yes the sun will be an issue with IR detectors
But my "worry" is that the IR receiver cant see the blinking IR transmitter, but only "sees" the sun!
Gps -> expensive
i meen what is best case 2,5 meters ?
(with a price of 20k$)
In everyday GPS handheld units its about 4-6 meters
A small child could do it