There is therefore provided, in accordance with a preferred embodiment of
the present invention, a robotic system for systematically moving about
an area to be covered. The system includes at least one boundary marker
(48) located along the outer edge of the area to be covered, a robot (40)
with a navigation system (41) navigates the robot (40) in generally
straight, parallel lines from an initial location and turns the robot
(40) when the robot (40) encounters one of the boundary markers (48),
thereby to systematically move about the are to be covered. The sensor
unit (43) senses proximity to one of the at least one boundary marker
(48).
