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针对国内城市轨道交通信号系统缺乏成熟的、量化的可靠性指标体系的现状,在参考国际相关标准的基础上,明确将基本可靠性和任务可靠性作为我国信号系统可靠性要求的指标参数,并阐述两种参数的建模与测定,为进一步制定既满足用户需求又能在技术上达到的可靠性指标值及其可操作的验证方法奠定基础。
In view of the lack of a mature and quantitative reliability index system for domestic urban rail transit signal system, based on the reference to relevant international standards, the basic reliability and mission reliability are explicitly taken as the index parameters for the reliability requirements of the signaling system in our country. This paper elaborates the modeling and determination of the two parameters, which lays the foundation for the further development of the reliability index values and operational verification methods that meet the needs of users and are technically achievable.