摘要
平视显示系统作为影响飞机飞行安全的关键系统,其失效可导致可控飞行撞地(Controlled Flight into Terrain)的灾难性事故,而传统的以部件故障独立为前提的安全性评估方法难以满足综合化航电系统的高度耦合、资源共享特性,无法得到全面有效的安全性分析,给民机安全性带来了隐患。采用Safety Case理论构建平视显示系统的安全性评估模型,建立安全性目标与安全性证明材料间的追溯关系,能够实现对平视显示系统的安全性评估。结果表明,基于Safety Case理论的民机平视显示系统安全性评估模型能够详细阐述系统安全目标被安全证据满足的过程。
Head-Up Display （HUD） is a critical system that impact aircraft flight safety. If it is invalidated, it will lead to the catastrophic accident of controlled flight into terrain. The traditional safety assessment based on independent component failure cannot be adaptive to the feature of the integrated modular avionics system, which is highly coupling and is hardware resource sharing. And thus it is difficult to achieve a comprehensive and effective safety analysis. By using Safety Case theory, we built up a safety assessment model of HUD and established traceability between safety goals and safety solutions, to achieve assessing the safety of HUD. The results showed that： the safety analysis model of civil aircraft HUD system based on Safety Case can elaborate that system safety objectives are met by safety evidences.
出处
《电光与控制》
北大核心
2016年第12期56-60,共5页
Electronics Optics & Control
基金
"九七三"计划(2014CB744902)
国家自然科学基金委员会-中国民航局民航联合研究基金(U1533105)
天津市自然科学基金联合资助项目(15JCQNJC42800)
中央高校基本科研业务费项目(3122015C028)
