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铁路信号的基本作用之一就是保证列车、车列的运行安全。而这种安全的实现又总是把“系统故障时让列车停止”作为第一条件,形成了绝对保证安全的指导思想。在信号设备发生故障时,绝对禁止向危险侧动作。在现有的铁路信号联锁设备中,故障-安全的实现是以具有非对称错误特性,且故
One of the basic functions of railway signals is to ensure the safe operation of trains and trains. And the realization of this kind of safety always regards the “stop of train when the system breaks down” as the first condition, forming the guiding principle of absolute guarantee of safety. In the event of signal equipment failure, it is absolutely forbidden to act on the dangerous side. In the existing railway signal interlocking equipment, fault-safety is based on the characteristics of asymmetric error, and therefore