摘要:随着信息物理融合系统CPS （cyber physical system）研究的深入，CPS的安全性问题越来越受到人们的广泛关注，如何验证CPS时空不一致的安全性问题已经成为研究热点.针对该问题，提出了面向CPS时空性质验证的混成AADL（architecture analysis & design language）建模与模型转换方法.首先，扩展AADL行为附件的时空描述能力，提出了混成AADL（hybrid architecture analysis & design language），用于建模CPS的时空性质；其次，在进程代数中引入微分方程以及位置描述，提出了HP-TCSP，能够验证CPS的时空性质；再次，通过模型转换，将混成AADL转换为HP-TCSP，从而可以将混成AADL描述的CPS模型在HP-TCSP中进行时空一致性验证；最后，通过一个飞机避撞系统实例，验证该方法的有效性.



Abstract:With the in-depth research of CPS (cyber physical system), the security problems of CPS are gradually attracted extensive attention. How to verify the security of space and time inconsistency of CPS has become a research hot spot. A hybrid AADL (architecture analysis & design language) modeling and model transformation method for CPS is proposed to solve this problem. Firstly, the time and space description capability of AADL behavior annex is extended, and Hybrid AADL (hybrid architecture analysis & design language) is proposed. Secondly, the differential equation and the position description are introduced into the process algebra. Thirdly, the hybrid AADL is transformed into HP-TCSP. Finally, the effectiveness of the proposed method is verified by an example of aircraft anti-collision system.



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