【摘要】 AADL可以描述机载设备系统的时序需求、任务状态等关键性能特性,已应用于航空、电子自动化、机器人控制等实时系统。提出基于AADL的机载设备系统可靠性建模方法,为该系统模型结构的设计和验证提供了理论依据。采用EMA子语言对AADL描述的机载设备系统进行可靠性建模,给出可靠性模型中的错误模型、错误传播和状态映射规则等子句属性的用法。最后通过一个基于AADL的机载设备可靠性建模实例,验证了所提建模方法的有效性。更多还原

【Abstract】 The AADL(Architecture Analysis and Design Language) can describe important performance-critical aspects for airborne equipments such as timing requirements,mission states.The language has been applied to performance-critical real-time system such as avionics,automotive electronics,or robotics systems.A reliability modeling method of airborne equipments based on AADL is proposed in this paper and it provides theoretical basis for designing and validating the system model of airborne equipments.Firstly,the AADL and EMA(Error Model Annex) are adopted to model the reliability of airborne equipments.Then the usages of annex subclause properties for error model,error propagation,state mapping rule.Finally,An example for reliability model of airborne equipments based on AADL is described to validate the efficiency of the modeling method.更多还原