MATLAB Interfacing: Real-time Implementation of a Fuzzy Logic Controller

In this work, the design and evaluation of a fuzzy logic control of liquid flow process is analyzed experimentally using MATLAB package. MATLAB is a widely used software environment for research and teaching applications on control and automation. The interface is a collection of hardware and software modules used to flexibly connect a plant, process or instrument (etc.) to a digital computer. The experimental performance of proposed fuzzy logic control is carried out on existing computer control of flow process. The program of Real-time data acquisition and control has been developed using modules called, “To Instrument” and “Query Instrument” of MATLAB for experimental work. Thus, The present implementation of intelligent fuzzy logic control on real-time basis is a pioneering work at laboratory scale. It is considered to be a great contribution in area of advanced process control systems. The simulation and experimental results clearly shows that the Intelligent Fuzzy Logic Controller gives a better control without overshoots of liquid flow rate in comparison with conventional PID controller.