相邻闭塞分区轨道电路信号相同载频问题的研究

研究相邻闭塞分区轨道电路信号相同载频对列控系统车载设备的影响。车载设备根据列车的当前速度和所接收的地面信息计算列车最高允许速度,并以应答器组位置校正为主、绝缘节位置校正为辅进行列车位置校正。当相邻闭塞分区轨道电路信号载频相同时,车载设备可能给出缩短的行车许可,甚至非安全的行车许可,影响列控系统的可用性和安全性。因此,在工程设计中,相邻闭塞分区轨道电路信号应采用不同的载频;对于已经存在的相同载频区段,可采取在载频相同的绝缘节分界处增加应答器组的解决方案。

Study on the Problem of the Track Circuit Signal with the Same Carrier Frequency in the Adjacent Block Sections

The influence of the track circuits with the same carrier frequency in two adjacent block sections on the on-board equipment of train control system was studied.According to the current train speed and the received ground information,the maximum allowable speed of the train was calculated by the on-board equipment.At the same time,the train position was adjusted by adjusting the balise group first and the insulated joint second.When the carrier frequency of the track circuit signal in the adjacent block sec...