Models of control, monitoring and diagnostics subsystem elements interconnection of automation control systems data transmission networks

The purpose of the work: improving the operational and technical characteristics of data transmission networks (DTN) of automated control systems (ACS) based on the structural-parametric approach to the construction and implementation of the subsystem of control, monitoring and diagnostics (CMD) of technological and communication equipment. Materials and methods. A structural-parametric approach to the construction of the CMD subsystem is proposed, which will improve the quantitative and qualitative indicators of the DTN functioning in the structure of distributed ACS. The structural component implies the choice of architecture and topology (connection point, levels and algorithms for information exchange, sizes of controlled zones (clusters), etc.) of the superimposed network that ensures the interaction of control, communication and terminal devices. The parametric component determines the analysis and configuration of the parameters of the elements and the protocols of interaction between them, which will ensure the specified performance indicators of the DTN as part of the ACS. Mathematical models for determining the time parameters of the CMD subsystem functioning depending on their characteristics (scale, topology, performance, traffic, etc.) are proposed. Software models that can be used as a tool for solving problems of synthesis and analysis of the CMD subsystem of the DTN ACS are developed and studied. Results. Mathematical models are obtained that allow selecting the architecture and parameters of the CMD subsystem for the specified characteristics of the DTN ACS. Software models are created that implement the proposed structural-parametric approach, taking into account the requirements and initial data. Information on testing the developed models is provided. Conclusion. The obtained results can be used to improve the operational and technical characteristics of the DTN ACS due to the justified choice of the CMD subsystem structure for different options of interaction technologies and network protocols.

Authors: A. V. Gavrilov, V. I. Freyman

Direction: Informatics, Computer Technologies And Control

Keywords: automated control system, data transmission network, control, monitoring and diagnostics subsystem, protocol, topology, polling, event, period, model

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