A New Way to Represent Graphically Fuzzy Logic Equations: Fuzzy Ladder

Abstract Different graphical representation methods are used to expressed logic Boolean equations. A well known method, inspired from electrical schematics, is the ladder diagrams method. It is the most widely used language for programmable controllers. We propose to extend the notion of ladder to the theory of fuzzy sets and more especially to fuzzy logic equations. Thus we introduce the fuzzy ladder diagrams method that provide an attractive way to represent graphically fuzzy logic equations. Examples of application of fuzzy ladder to fuzzy diagnosis and fuzzy multidimensional membership function are presented.