枢纽车站应答器报文坡度信息描述方式探讨

Discussion on the Description Method of Gradient Information in Balise Telegram at Hub Stations

高铁线路沿途地形复杂,尤其是线路交汇处,出站口外方线路的坡道条件呈现多样化。因应答器报文只能预告其所在线路的坡度信息,列车在线路所或枢纽车站跨线运行时,出站口外方坡度的变化,可能导致列车动态监控曲线发生突变,从而对旅客乘坐的舒适度造成影响。对地面应答器坡度信息的处理方案进行深入探讨,通过优化报文中的坡度信息描述方式,对于具备多区间口运行条件的场景,取报文数据范围内不同线路坡度中的最大下坡道,按最不利坡度拼接后作为线路坡度信息存入应答器,避免因坡度相差过大对跨线列车运行产生不利影响。对线路所及枢纽车站等关键场景下的坡度信息描述方式,可供后续工程实践参考。

In the area of complex terrain along the high speed railway line,especially at line interchanges,the slope conditions of the line outside the exit are diversified.The balise telegram can only predict the gradient information of the track where it is located,when the train runs across tracks at a block post or hub station,the change of gradient information outside the exit may cause a sudden change in the train dynamic monitoring curve,thereby adversely affecting the comfort of passengers.The processing scheme of gradient information of ground balise telegram is discussed in depth.By optimizing the gradient information description in the balise telegram,for scenarios with multi-section port operating conditions,the maximum downward slope of different gradients within the range of balise telegram is taken,and the most unfavorable gradient is stored as track gradient information in the balise,so as to avoid adverse effects of gradient differences on cross-track EMU operation. The description method of gradient information in key scenarios such as block post and hub stations can provide useful references for subsequent engineering practices.