| 摘要: |
| 航天嵌入式软件是航天型号任务成败的关键之一.航天嵌入式软件是一种周期性、多模式的软件.软件的每个模式表示系统处于一定的状态,并进行相应的复杂计算.因此,提出了一种名为SPARDL的形式化建模方法.为了满足型号应用的需求,对这一方法进行了若干改进.为了表达航天器的时序性质,提出了一种基于区间逻辑的性质规范语言.为了支持工业应用,还设计了代码生成方法.这一建模方法已在航天工业领域得到了应用. |
| 关键词: 航天嵌入式软件 形式化建模方法 |
| DOI：10.13328/j.cnki.jos.004784 |
| 分类号: |
| 基金项目:国家自然科学基金(90818024, 91118007); 上海市高可信计算重点实验室开放课题(07dz22304201304) |
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| Formal Modeling Approach for Aerospace Embedded Software |
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GU Bin1, DONG Yun-Wei1, WANG Zheng2
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1.School of Computer Science, Northwestern Polytechnical University, Xi'an 710029, China;2.Beijing Institute of Control Engineering, Beijing 100190, China
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| Abstract: |
| The success of aerospace depends on the correctness of aerospace embedded software. Such embedded software are usually period-driven and can be decomposed into different modes with each mode representing a system state observed from outside. Such software may also involve intensive computing in their modes. Currently, there is lack of domain-specific formal modeling languages for such software in the relevant industry. To address this problem, this article proposes a formal visual modeling approach called SPARDL as a concise and precise way to specify such software. To capture the temporal properties of aerospace embedded software, a property specification language is provided based on interval logic. To support application in industry, code generation methodology is also discussed. This modeling approach is applied in some real-life cases in aerospace industry. |
| Key words: aerospace embedded software formal modeling method |
