A Refinement-based Formal Development of Cyber-physical Railway Signalling Systems
A Refinement-based Formal Development of Cyber-physical Railway Signalling Systems
复制标题
基于细化的网络物理铁路信号系统形式化开发
DOI:
10.1145/3524052
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发表时间:
2023
影响因子:
1
通讯作者:
Aït-Ameur Y
中科院分区:
文献类型:
--
作者:
Aït-Ameur Y
For years, formal methods have been successfully applied in the railway domain to formally demonstrate safety of railway systems. Despite that, little has been done in the field of formal methods to address the cyber-physical nature of modern railway signalling systems. In this article, we present an approach for a formal development of cyber-physical railway signalling systems that is based on a refinement-based modelling and proof-based verification. Our approach utilises the Event-B formal specification language together with a hybrid system and communication modelling patterns to developing a generic hybrid railway signalling system model that can be further refined to capture a specific railway signalling system. The main technical contribution of this article is the refinement of the hybrid train Event-B model with other railway signalling sub-systems. The complete model of the cyber-physical railway signalling system was formally proved to ensure a safe rolling stock separation and prevent their derailment. Furthermore, the article demonstrates the advantage of the refinement-based development approach of cyber-physical systems, which enables a problem decomposition and in turn reduction in the verification and modelling effort.
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DOI:
--
发表时间:
2018
期刊:
IEEE International Conference on Software Engineering and Formal Methods
影响因子:
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DOI:
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发表时间:
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期刊:
Theoretical Aspects of Software Engineering
影响因子:
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作者:
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影响因子:
1.3
作者:
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