Computer Science ›› 2014, Vol. 41 ›› Issue (4): 145-149.

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Integrated Reliability Modeling and Analysis of Hardware/Software of ERCS System Based on Copulas

GUO Rong-zuo   

  • Online:2018-11-14 Published:2018-11-14

Abstract: The reliability of a system employs an increasing important issue in modern day electronic,manufacturing and industrial systems,and most of the control systems are the core part of Embedded Real-time Control System(ERCS),and the system reliability is especially important.At first,formalization of the hardware/software of ERCS was defined.Then,reliability modeling was given for software modules which can not be subdivided and for IP hardcore.The reliabi-lity modeling of hardware/software of ERCS was also provided by applying Copula function.The integrated reliability modeling of software and hardware of ERCS was also established by applying Copula function.The reliability of specific system hardware/software was calculated by using the model.The results show that the reliability model established with Copula function takes account of the correlation between software modules,IP hardcore and hardware/software,therefore the integrated reliability of hardware/software of ERCS is improved compared with the independent hardware and software.

Key words: Copula function,Reliability,Modelling and analysis,Embedded real-time control system,Hardware/software

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