Research on redundant structure of cloud-based interlocking systems
In order to ensure the operational safety of interlocking systems within cloud platforms, this paper presented a redundant structure for cloud-based interlocking systems based on virtual machine fault tolerance technology, through analyzing the redundant structure of the existing computer-based inte...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Drive for Locomotives
2023-11-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2023.06.018 |
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| Summary: | In order to ensure the operational safety of interlocking systems within cloud platforms, this paper presented a redundant structure for cloud-based interlocking systems based on virtual machine fault tolerance technology, through analyzing the redundant structure of the existing computer-based interlocking systems and considering the characteristics of cloud platforms. Firstly, the characteristics and advantages of the redundant structure of cloud-based interlocking systems were elaborated. Subsequently, this paper analyzed the working mode and server failure factors, and established a server fault tree model and dynamic fault tree model to evaluate the probability of failure on danger (PFD) and probability of failure to safety (PFS). Finally, the reliability of the redundant structure of cloud-based interlocking systems was assessed by simulation analysis using the dynamic fault tree model. The results indicate that cloud platforms are more suitable for deploying interlocking systems in multiple redundant structures such as <italic>M</italic>oo<italic>N</italic> structures. This research on the redundant structure for cloud-based interlocking holds certain reference significance for the development of cloud-based interlocking systems. |
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| ISSN: | 1000-128X |