Document Type : Research Paper

Authors

• k. Alipour ¹
• m. Ghiasvand ²
• B. Tarvirdizadeh ¹

¹ Department of Mechatronics Engineering, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran

² Department of Electrical, Biomedical and Mechatronics Engineering, Islamic Azad University, Qazvin Branch, Qazvin, Iran

Abstract

In this paper, the important formation control problem of nonholonomic wheeled mobile robots is investigated via a leader-follower strategy. To this end, the dynamics model of the considered wheeled mobile robot is derived using Lagrange equations of motion. Then, using ADAMS multi-body simulation software, the obtained dynamics of the wheeled system in MATLAB software is verified. After that, in order to generate and keep the desired formation, a Fuzzy Logic Controller is designed. In this regard, the leader mobile robot is controlled to follow a reference path and the follower robots use the Fuzzy Logic Controller to keep constant relative distance and constant angle with respect to the leader. The efficiency of the suggested dynamics-based formation controller has been proved using several computer simulations under different situations and desired trajectories. Also, the performance of the follower robot in path tracking is checked in the presence of receiving noisy data from the leader robot.

Graphical Abstract

Keywords

• Wheeled mobile robots
• Nonholonomic constraints
• Fuzzy logic controller
• Formation Control

Main Subjects

• Robotics