针对铁路信号的高可靠性要求,设计了嵌入式站间自动闭塞系统的体系结构、嵌入式闭塞控制器和控制锁.详细设计了具有冗余特性的控制器硬件、比较电路和安全锁.同时,对本控制器构成的自动站间闭塞系统进行Petri网建模及分析.
Because of the high demanding of the reliability in the railway signaling field, the system structure in which the redundant problem is studied is designed, a controller of the embedded automatic block is designed and a safety controlling lock principle is also proposed in this paper. This paper detailed designed the hardware of the property redundancy controller,comparator circuit and safty controlling lock. By the way, the Petri net theory is used to model and analyze the system as used the controller.