Fuzzy Motion Planning of Mobile Robots in Unknown Environments

Authors:
Tsong-Li Lee;Chia-Ju Wu
Affiliations:
Department of Automation Engineering, Nan Kai College, Nantou 542, Taiwan, R.O.C;Department of Electrical Engineering, National Yunlin University of Science and Technology, Touliu, Yunlin 640, Taiwan, R.O.C./ e-mail: wucj@pine.yuntech.edu.tw
Venue:
Journal of Intelligent and Robotic Systems
Year:
2003

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Abstract

A fuzzy algorithm is proposed to navigate a mobile robot from a given initial configuration to a desired final configuration in an unknown environment filled with obstacles. The mobile robot is equipped with an electronic compass and two optical encoders for dead-reckoning, and two ultrasonic modules for self-localization and environment recognition. From the readings of sensors at every sampling instant, the proposed fuzzy algorithm will determine the priorities of thirteen possible heading directions. Then the robot is driven to an intermediate configuration along the heading direction that has the highest priority. The navigation procedure will be iterated until a collision-free path between the initial and the final configurations is found. To show the feasibility of the proposed method, in addition to computer simulation, experimental results will be also given.