As a tight integration of computing and physical processes,cyber-physical system (CPS) is the integration of cyber and physical worlds.According to the spatial-temporal and non-function properties in CPS,this paper presented a modeling approach based on aspect-oriented spatial-temporal Petri net.It separates core concern and crosscutting concerns from the system,and allows for analyzing crosscutting cores as aspect modules while ensuring the consistency of time and space.By building rules,these aspect modules will be woven into the system again.This approach can improve the reliability and maintainability for formal analysis of different non-function properties at the system design phase.At last,it is showed that the modeling approach is feasible through an example.%信息-物理融合系统(Cyber-Physical System,CPS)作为一系列物理过程和计算过程的紧密集成,体现为物理世界和信息世界的交互与融合.针对CPS的时空及非功能属性,提出一种面向方面的时空Petri网建模方法,在保证时空一致性的前提下,分离系统中的核心关注点和横切关注点,将横切关注点单独作为方面进行分析,并将构建规则方面重新织入系统.该方法在系统设计阶段可以对不同的非功能属性进行形式化分析,提高了系统的可靠性和可维护性.最后通过实例说明了该方法的可行性.
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