Making control decisions in fuzzy systems invariant to a change of external conditions

Abstract

Two classes of fuzzy situational control models are considered: ‘situation - action’ and ‘situation - control strategy - action’. Possible object states are described by a standard situations set. A hierarchical structure of ‘situation - control strategy - action’ models is suggested. The upper level of the hierarchy sets up the intended standard situation in every current situation. On other hierarchy levels a control strategy is defined and it is worked out to transfer the control object to the target standard situation. A situation transition graph construction method is suggested.