This paper presents a navigation system for mobile robot working on unknown environments. The proposed method is based on approximated cell decomposition. Only the initial and final position and orientation are required a priori. However other information initially known about the environment may also be provided. The remaining data used to develop the path plan are obtained by the robot using an ultrasound sonar. Details about the real time implementation of the method and about the robot are also presented. Simulated and experimental results validate the approach.
Autonomous navigation; decomposition methods; obstacle detection; mobile robots
