Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Fuzzy nodes behavior charts for complex technological objects, their construction and usage principles A.G. BAZHANOV R.A. VASHCHENKO V.Z. MAGERGUT Here is proposed an approach to development of technological values behavior model for semistructured control object in the form of fuzzy nodes behavior charts. It is a directed graph in which the vertices are mapped by fuzzy modes, reflecting the dynamics or static of technological value changing, and arcs are signed by mode changing conditions in the form of Boolean functions, including fuzzy functions. There are shown stages and construction principles of this chart, including examples. Described engineering and development of semistructured control object model, based on set of describing its nodes charts, followed by synthesis of the control algorithm, based on marked Petri nets – operations graphs. Fuzzy approach combines algorithmic approach, which is used to clear class of objects, and expert fuzzy systems, which together makes the most efficient solving of problems, with which engineers are faced. Fuzzy nodes behavior charts represent a way of solving a large range of automation tasks, including consideration the safety of automated control systems directly when creating a model of an object, based on the regulatory and statistical data, obtained from it, as well as expert opinions of specialists. Keywords: semistructured object, fuzzy nodes behavior charts, membership functions, technological conditions, algorithmic model, expert systems. Contacts: E-mail: all_exe@mail.ru Pp. 26-34.