Abstract

Digital networked control systems are of growing importance in safety-critical systems and perform indispensable function in most complex systems today. Networked degradation such as transmission delay cause such systems to fail to satisfy performance requirements, and eventually affect the overall reliability.Therefore, it is very important to obtain a reliability evaluation model of the entire network system based on the performance of transmission links.However,the existing networked control system performance reliability evaluation models often regard the transmission links as independent, ignoring the relevance of data transmission between links.From the perspective of link correlation, this paper proposes a new method of fusing data-driven and compound Archimedes Copula function modeling to analyze the reliability of networked control system performance. Finally, a networked control system example is provided to illustrate the effectiveness of the model and method.

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