Intelligent fuzzy interface technique for the control of an autonomous mobile robot

Author(s):  
D R Parhi ◽  
M K Singh

In this article, research has been carried out on the control technique of an autonomous mobile robot to navigate in a real-world environment, avoiding structured and unstructured obstacles, especially in a crowded and unpredictably changing environment. Here a successful way of structuring the navigation task, dealing with the issues of individual robot behaviours, is discussed. Action coordination of the behaviours has been addressed using fuzzy logic in the present research. The inputs to the proposed fuzzy-control scheme consist of a heading angle between a robot and a specified target, and the distances between the robot and the obstacles to the left, front, and right of its locations, being acquired by an array of sensors. The proposed intelligent controller for mobile robot navigation algorithm employing fuzzy theory has been applied in a complex environment. The results are verified in simulation and experimental modes, which are in good agreement.

Author(s):  
Wei Li ◽  
Kezhong He

Abstract This paper presents a new method for sensor-based mobile robot navigation in unknown environments using fuzzy logic. The inputs to the fuzzy control scheme consist of a heading angle between the robot and a specified target and distances between the robot and obstacles to the left, front, and right locations. The outputs from the control scheme are commands for the speed control unit of two rear wheels of a mobile robot. Distances between the robot and obstacles are acquired by an array of ultrasonic sensors. Current coordinates of the robot are measured by a wheel ancoder system. The velocities of the driving wheels are controlled by a motor drive unit. The main idea of the proposed method is quantitatively to formulate reactive behaviors and efficiently to coordinate their conflicts and competitions by fuzzy sets and fuzzy rules. Simulation results show that the proposed method can be efficiently applied to robot navigation in complex and uncertain environments based on sensors.


2016 ◽  
Vol 19 (1) ◽  
pp. 19-23 ◽  
Author(s):  
Vladimír Cviklovič ◽  
Martin Olejár ◽  
Dušan Hrubý ◽  
Zuzana Palková ◽  
Ondrej Lukáč ◽  
...  

The issue of navigation methods is being continuously developed globally. The aim of this article is to test the fuzzy control algorithm for track finding in mobile robotics. The concept of an autonomous mobile robot EN20 has been designed to test its behaviour. The odometry navigation method was used. The benefits of fuzzy control are in the evidence of mobile robot’s behaviour. These benefits are obtained when more physical variables on the base of more input variables are controlled at the same time. In our case, there are two input variables - heading angle and distance, and two output variables - the angular velocity of the left and right wheel. The autonomous mobile robot is moving with human logic.


Robotics ◽  
2010 ◽  
Author(s):  
H. Wicaksono ◽  
K. Anam ◽  
P. Hastono ◽  
I.A. Sulistijono ◽  
S. Kuswadi

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