ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 32, (2) 165 - 172 (1988)


ŘÍDÍCÍ SYSTÉMY V TECHNOLOGII SKLA

Část I. Systémový přístup a systémové aplikace

CONTROL SYSTEMS IN THE TECHNOLO GY OF GLASS

PART I. SYSTEM APPROACH AND SYSTEM APPLICATIONS


 
Kasa Stanislav 1
 
1 Vysoká škola chemicko-technologická, katedra technologie silikátů, Suchbátarova 5, 166 28 Praha 6
1 Department of Silicate Technology, Institute of Chemical Technology, 166 28 Prague 6

Článek seznamuje čtenáře se systémovými přístupy a systémovými aplikacemi v technologických procesech, které je nezbytné respektovat při zavádění automatizovaných řídících systémů do technologických procesů, a to jak v obecné poloze, tak i z pohledu jejich využití v technologii skla. V závěru je popsána tvorba modelu technologických procesů, které slouží jako podklady pro sestavování řídících algoritmů.

Complex modernization of manufacturing technologies, above all glassmaking ones, also includes introduction of control systems. Construction of such systems requires new approaches which haye the following basic aspects: systems of centrallized data collection and processing, control according to models, and computer control systems which include the two former degrees of the higher forms used in the control of industrial processes. Part I. is concerned with the so-called system approach which differs qualitatively from the earlier procedures in that it requires study and harmonization of bonds between the individual parts of the technological process. These are then considered in the complex manner including the inner as well as outer relationships. Part 2 presents description of system applications in technologi< al processes, II. based on system approaches to the solving of technological problems. An account is given of procedures chosen in the case of technological processes with highly complex structures, such as arise in the technology of glass. The technological process as a whole is divided into partial processes which act as subsystems in the control system; then follows the procedure of creating the control systems, divided into five consequent stages. The concluding part pays attention to models of technological processes which are regarded as real systems, i.e. a source of both measurable and unmeasurable data. Two methods for the creation of models of technological processes are demonstrated, namely the mathematico-physical analysis (MPA) and the experimental identification (EI).


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