Analysis and electronic implementation of a fuzzy system for the control of a liquid tank

Author

Rojas, I. ; Anguita, M. ; Pomares, H. ; Prieto, A.

Author_Institution

Dept. de Electron. y Tecnologia de Computadores, Granada Univ., Spain

Volume

3

fYear

1997

fDate

1-5 Jul 1997

Firstpage

1541

Abstract

This paper presents a comparative study between a fuzzy system and a PI conventional controller for the real control of a liquid tank. The final fuzzy system is electronically implemented in a low-cost multifunction microcontroller, the PIC16C71. For nonlinear problems, fuzzy systems are useful tools: as shown in this paper, the performance of the fuzzy controller is superior to that of conventional methods. There are various means of implementing the transfer characteristic of a controller. As is discussed in this paper, the division of the output surface into different planes is the optimum solution, as this requires the least amount of memory (420 lines in PIC assembler language). The final structure of the autonomous system is very compact

Keywords

control system analysis; control system synthesis; fuzzy control; fuzzy systems; level control; microcontrollers; transfer functions; two-term control; PI conventional controller; PIC16C71 microcontroller; electronic implementation; fuzzy controller; fuzzy system; liquid tank; low-cost multifunction microcontroller; transfer characteristic; Control system synthesis; Control systems; Fuzzy control; Fuzzy logic; Fuzzy systems; Hardware; Mathematical model; Microcontrollers; Pi control; Proportional control;

fLanguage

English

Publisher

ieee

Conference_Titel

Fuzzy Systems, 1997., Proceedings of the Sixth IEEE International Conference on

Conference_Location

Barcelona

Print_ISBN

0-7803-3796-4

Type

conf

DOI

10.1109/FUZZY.1997.619771

Filename

619771