Development of single-chip fuzzy controller based on FFSI in binary

Length and concise structure of fuzzy logic reasoning program and its real-time reasoning characteristic have their effect on the performance of a digital single-chip fuzzy controller. The control effect of a digital fuzzy controller based on looking up fuzzy control responding table is only relative to the table and not relative to the fuzzy control rules in the practical control process. Aiming at above problem and having combined fuzzy log-ic reasoning with digital operational characteristics of a single-chip microcomputer, functioning-fuzzy-subset inference (FFSI) in binary, in which triangle membership functions of error and error-in-change are all represented in binary and singleton membership functions of control variable is binary too, has been introduced. The circuit principle plans of a single-chip fuzzy controller have been introduced for development of its hardware, and the primary program structure, fuzzy logic reasoning subroutine, serial communication subroutine with PC and reliability de