The foundation of automaticblock and cab signal is track circuit.
自动闭塞和机车信号的基础是轨道电路。
2
The paper gives solutions to the problems with lighting circuit of permissive aspect of blocksignal of existing automaticblock section according to relevant specifications.
通过对现有自动闭塞区间通过信号机容许信号点灯电路存在问题的分析,根据相关规范,提出解决办法。
3
The article analyses the frequency security & stability of signal generator circuit of dispatching equipment of automaticblock with frequency shift, and an optimum design scheme is concluded.