无线机车信号地面控制设备及双机热备的可靠性分析

介绍了无线机车信号地面控制设备的结构和工作原理,为了保证其正常运行,采用双机热备方式。对单控制机的失效率进行划分,根据各部分失效率对系统的影响,利用马尔可夫模型分析系统可靠性。结果表明,双机热备很大程度上提高了系统的可靠性,达到了可靠性指标。

The basic structure and working principle of radio-based cab signal wayside control system were described. In order to ensure its reliability, the system adopted dual controller architecture. The failures of individual controller are categorized and the reliability was analyzed by using Markov model in terms of the effects of the failure of each part on the whole system. The analysis results showed that dual controller architecture substantially improved the reliability of the system up to the specification of reliability.