Development of fuzzy-logic processing objects for industrial control applications

Object-oriented programming is introduced as a new approach for implementing software to solve fuzzy logic control problems. The object-oriented approach does a better job in supporting rapid prototyping. It allows users to gradually refine a subset of objects and operations. In the initial program testing phase, C++ fuzzy objects were used to generate a control decision table and control motor speed. The authors experienced no difficulty in modifying the C++ object functions into pure C functions for gaining portability and execution speed, which made this approach more attractive than a pure procedure-oriented approach. The object-oriented approach using C++ appears to be the appropriate technology for an FLC (fuzzy logic controller)-based DC motor speed control application. It enables a more flexible programming environment and reduces the efforts for fuzzy-object development and maintenance