Velocity planning for a mobile robot to track a moving target - a potential field approach

Authors:
L. Huang
Affiliations:
Institute of Technology and Engineering, Massey University, P. O. Box 756, Wellington, New Zealand
Venue:
Robotics and Autonomous Systems
Year:
2009

Citing 4
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Abstract

Potential field method has been widely used for mobile robot path planning, but mostly in a static environment where the target and the obstacles are stationary. The path planning result is normally the direction of the robot motion. In this paper, the potential field method is applied for both path and speed planning, or the velocity planning, for a mobile robot in a dynamic environment where the target and the obstacles are moving. The robot's planned velocity is determined by relative velocities as well as relative positions among robot, obstacles and targets. The implementation factors such as maximum linear and angular speed of the robot are also considered. The proposed approach guarantees that the robot tracks the moving target while avoiding moving obstacles. Simulation studies are provided to verify the effectiveness of the proposed approach.