摘要
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。
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 in- sulated joint second. When the carrier frequency of the track circuit signal in the adjacent block sections was the same, the on-board equipment might give the shortened Movement Authority （MA）, even the un- safe MA, which would affect both the availability and the safety of the train control system. So in the en- gineering design, different carrier frequency should be adopted for the track circuit in the adjacent block section. For the section the same carrier frequency already existed, the possible solution is to add the balise group at the interface of the insulated joint with the same carrier frequency.
出处
《中国铁道科学》
EI
CAS
CSCD
北大核心
2011年第1期108-111,共4页
China Railway Science
关键词
列控系统
车载设备
闭塞分区
轨道电路
信号
相同载频
Train control system
On-board equipment
Block section
Track circuit
Signal
Same carrierfrequency
