基于DO-178C的无关代码和非激活代码适航研究
Research on DO-178C Based Airworthiness Technology for Extraneous Code and Deactivated Code
李燕琳 1郑雪峰 1潘路平 2钟旭旭 1曾析 3胡胤杰3
作者信息
- 1. 中国民用航空适航审定中心 成都机载设备审定分中心,四川 成都 610000
- 2. 中电科航空电子有限公司,四川 成都 611000
- 3. 中国民用航空适航审定中心 成都机载设备审定分中心,四川 成都 610000;商飞软件有限公司,四川 成都 614000
- 折叠
摘要
目前我国民用机载设备自研取证项目数量剧增,其承载的功能也正往高关键等级发展.驻留于其中的机载软件,往往因使用了开源代码、库函数、底层驱动等非自研软件模块,在满足DO-178C标准规定的结构覆盖要求时,因代码类型判定不准确,出现适航方案迎审不通过的问题.通过解析DO-178C标准中的理论核心要点,提出了一种代码类型判定流程.总结国内外成功适航经验,对不同项目应用了本判定流程,结合适航关注点给出了实践建议,望给后续项目提供参考和便利.
Abstract
At present,the quantity of certification projects for self-developed civil airborne equipment in our country has seen a significant increase,with a focus on advancing the function criticality towards high levels.The software involved in these projects often incorporates non-self-developed software modules such as open-source code,library functions,and low-level drivers.Consequently,when attempting to meet the structural coverage requirements defined in DO-178C,inaccuracies in code type determination have led to issues with airworthiness certification.Firstly,by elucidating the theoretical core points of the DO-178C,a code type determination process was proposed.Then,successful domestic and international airworthiness experiences were summarized,the determination process was applied to different projects,and practical recommendations were provided taking into account airworthiness concerns,aiming to offer reference and convenience for subsequent projects.
关键词
DO-178C/结构覆盖/无关代码/死代码/非激活代码Key words
DO-178C/structural coverage/extraneous code/dead code/deactivated code引用本文复制引用
基金项目
四川省重大科技专项(2021ZDZX0006)
出版年
2024
NETL
NSTL
万方数据