THE ROLE OF A FUZZY PID ON A MECHATRONICS CONTROL SYSTEM OF AN INDUSTRIAL ROBOT

The purpose is to integrate the fuzzy controller with the traditional PID (Proportion Integral Deferential) controller and apply it to the mechatronics control of industrial robots. Here, the fuzzy controller and the traditional PID controller are innovatively combined based on the working principle of fuzzy controller and traditional PID control. Consequently, the fuzzy PID controller is introduced, and the calculation process is analysed. Then, the mechatronics control system is proposed for the industrial robot and simulated through an industrial transport robot. The results show that the industrial transport robot has a fast response to the grasping operation, but the speed fluctuation is large. The system has an overshoot and a small steady-state error, but the error conforms to the standardized design established by Mamdani. When the robot moves forward and backward, it will move around the set value and stop moving until the system reaches stability. The fluctuation of the system response is small. The speed change value in 10 seconds is between [-0.02,0.01], and there is no significant oscillation. Meanwhile, the response time of the system is short during operation. This shows that the mechatronics control system of industrial robots based on fuzzy PID has strong stability, controlling the transport robot to respond timely and perform stably. © 2021, Cefin Publishing House. All rights reserved.