Method and system for robot localization and confinement of workspace

The invention claims a system and method, which uses the diode is a specific space. The system comprises: A portable short-circuit a signal used, the portable short-circuit a signal path is mainly composed of a transmission shaft, signalThe movable robot, a mechanism for making, an avoids the short-circuit a signal detection to the back short-circuit signal immediately. The preferred embodiment, the short-circuit a signal by the frequency transmission of infrared, and robot comprising a omnidirectional signal detector. An detecting to the signal; the robot rotates to avoid algorithm selected by a barrier in the direction, till a longer detecting to the back short-circuit signal.