The invention discloses a safety guiding device applied to a rail transit system and the rail transit signal system. The safety guiding device comprises a self-checking circuit, a processor and a safety circuit. The processor is used for detecting internal modules of the processor, detecting each interface circuit by using the self-checking circuit, judging whether output of the processor is safe according to a detection result, and outputting a dynamic pulse signal if the output of the processor is safe; if not, stopping outputting the dynamic pulse signal; wherein the processor does not output a dynamic pulse signal when the time sequence of the software of the processor is abnormal; the safety circuit is used for converting the dynamic pulse signal into a direct current signal for supplying power to the output interface circuit when the dynamic pulse signal is received, so as to ensure the output of the processor; and when the dynamic pulse signal is not received, the direct current signal is stopped from being provided for the output interface circuit to cut off the output of the processor, so that the system safety is effectively ensured.
本发明公开了一种应用于轨道交通系统的安全导向装置及轨道交通信号系统,包括自检电路、处理器及安全电路。处理器用于对自身内部模块进行检测及利用自检电路对各接口电路进行检测,并根据检测结果判断自身输出是否安全,若是,则输出动态脉冲信号;若否,则停止输出动态脉冲信号;其中,处理器在自身软件时序异常时不输出动态脉冲信号;安全电路用于在接收到动态脉冲信号时,将动态脉冲信号转换为供输出接口电路供电使用的直流信号,以保证处理器的输出;在未接收到动态脉冲信号时,停止为输出接口电路提供直流信号,以切断处理器的输出,有效保证系统安全。
Safety guiding device applied to rail transit system and rail transit signal system
应用于轨道交通系统的安全导向装置及轨道交通信号系统
2021-05-14
Patent
Electronic Resource
Chinese
NTIS | 1981
|Transportation Research Record | 2011
|