有源应答器下行链路信息传输研究

Study on Down-link Data Transmission of Active Balise

针对应答器系统中有源应答器不能进行双向传输的问题,对有源应答器系统进行修改,实现信息的顺利传输。首先通过建立各个接口的下行通道实现各自的信息传输,进而实现整个系统下行链路传输,并通过对"A"接口建模仿真验证该方法的有效性。具有下行链路信息传输功能的有源应答器系统保留了原有应答器的功能,避免了技术上的大幅度修改,而且能够实现信息的双向传输,也可以代替部分轨道电路的功能。当列车控制系统降级,C1和C2系统仍然能够通过有源应答器进行双向信息传输,保证列车的安全运行,同时为实现双向应答器的产品化提供理论基础。

In view of the failure of the active balise in two-way transmission in the balise system, the active balise is improved to assure the successful data transmission. The down channels of each interface are firstly built to conduct two-way transmission of each interface, and the two-way transmission of the entire system is then fulfilled. The effectiveness of this method is proved by the modeling and simulation of ＂ A＂ interface. The improved active balise system reserves the original functions to avoid much technical revision, and furthermore to fulfill two-way transmission of data and replace some of the functions of the track circuit. As a result, C1 and C2 can still fulfill two-way transmission via the active balise to ensure normal train operation in case of the degradation of the Train Control System, and theoretical basis is provided for the productization of the two-way balise.