公开(公告)号：JPH07141183A

公开(公告)日：1995-06-02

申请号：JP12539794

申请日：1994-06-07

Applicant: SGS THOMSON MICROELECTRONICS ,  CONS RIC MICROELETTRONICA

Inventor： BIAJIYO RUTSUSO ,  RINARUDO PORUTSUTSUI ,  KURAUDEIO RUTSUTSUI

IPC: G06F9/44 ,  G05B13/02 ,  G06F1/035 ,  G06N7/02 ,  G06N7/04

Abstract: PURPOSE: To minimize the size of a storage part and to perform an operation at a high calculation speed and at the excellent degree of a resolution by limiting the storage of a belonging relation function corresponding to a point where the value of the degree of the belonging relation of a function is not zero (not null) in a discussion area. CONSTITUTION: Signals from a system 9 to be controlled are converted to fuzzy logic information by a conversion device 2 and then sent to the storage part 5A and the specified storage of only a part of the information is executed there. The size of the storage part 5A is decided in response to the number of the non-zero values of the belonging relation function f (m) at the prescribed point (m) of the discussion area U provided with the maximum number of a non-null value and is far more compact than the size of the storage part obtained by a conventional method. The information stored in the storage part 5A is sent to a buffer part 8 and the restoration of the fuzzy logic information to be used in a calculation part 6 for an appropriate inference operation is implemented there. Thus, while minimizing a required storage capacity for a hardware, the operation is performed at the high calculation speed and at the high degree of the resolution.