民机数字化加载架构研究

Research on Digital Loading Architecture of Civil Aircraft

为解决民机依赖物理媒介的软件加载方式效率低下、加载方式单一、经济成本高等问题,提出了可加载软件部分(Loadable Software Part,LSP)的数字化加载,显著提升了民机的数据交互能力和运行效率。研究了已有的行业标准和规范,结合业界的应用描述了可加载软件从软件供应商到航线可更换单元(Line Replaceable Unit,LRU)的数字化加载过程,设计了LSP数字化加载的总体架构。运用架构权衡分析方法(Architecture Tradeoff Analysis Method,ATAM),从冗余性、经济性和安全性三方面出发,分析了提出的数字化加载架构。

In order to solve the problem of low efficiency,single loading mode and high economic cost in the software loading mode of civil aircraft relying on physical media,the digital loading of Loadable Software Part(LSP)is proposed,which significantly improves the data interaction capability and operation efficiency of civil aircraft.The existing industry standards and specifications are studied,and the overall architecture of the digital loading of the loadable software is designed,after the description of the digital loading process from the software supplier to the Line Replaceable Unit(LRU),combined with the industry applications.Finally,the Architecture Tradeoff Analysis Method(ATAM)is used to analyze the digital loading architecture proposed from the perspective of redundancy,economy and safety attributes.