基于AADL模型的飞控软件安全性分析方法

2014 International Conference on Computational Intelligence and Communication Networks Pub Date : 2014-11-14 DOI:10.1109/CICN.2014.240

Zhang Tao, Yechun Jiang, Junda Ye, Cheng Jing, Huamin Qu

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引用次数: 6

摘要

提出了一种基于模型的飞控软件安全性分析方法。首先，分别建立了飞控软件的AADL体系结构模型和误差模型;然后将飞控软件的AADL模型转化为扩展马尔可夫链模型。利用扩展马尔可夫链模型，计算软件构件在不同危险等级下的状态概率，从而对软件构件的安全性进行评价。最后，根据AADL误差状态组成关系计算整个飞控软件系统的安全性，避免了马尔可夫链模型的状态爆炸问题。

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An AADL Model-Based Safety Analysis Method for Flight Control Software

This paper proposes a model-based software safety analysis method for flight control software. Firstly, the AADL architecture model and error model of flight control software are constructed separately. Then we convert the AADL model of flight control software into extended Markov chain model. We can evaluate safety of software component by calculate the probability of component state in different hazardous levels with the extended Markov chain model. Finally, safety of entire flight control software system can be calculated according to AADL error states composition relation, which can avoid states explosion problem of Markov chain model.

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2014 International Conference on Computational Intelligence and Communication Networks

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