移频轨道电路

移频轨道电路传输电缆串音模型的研究

Study on the Model of Transmitting Cable Crosstalk in Frequency-Shift Track Circuit

移频轨道电路模型建立及应用

Establishment and application of model for frequency-shift track circuit

介绍铁路ZPW&2000A无绝缘移频轨道电路29m电气绝缘节的工作原理、主要频率参数、轨道电路主要设备组成及其工作原理。最后讨论该轨道电路尚未能解决的一些问题。

This paper introduces the principle of the electric joints , main frequency parameter and the arrangement of the ZPW 2000A FSO Track Circuit and discusses some unsettled problems in the ZPW 2000A FSO Track Circuit .

移频轨道电路的现状及其改造方案

Frequency shift track circuit at present and some suggestions for reformation

移频轨道电路测试系统的设计

The design of frequency shift track circuit test system

电气化区段移频轨道电路参数在线测试技术的研究

Research on Frequency Shift Track Circuit Parameters on Line Testing Technology in Electrified Block

本文介绍了移频轨道电路调整状态及分流状态调整电阻的计算方法。

Method of calculating the adjusting resistance of frequency shift track circuit for normal state and shunting state is introduced .

本文详细介绍了如何解决在线测试现代电气化铁路移频轨道电路参数的技术难题。

In this paper , it is introduced how to resolve some technical problems of track circuits parameters on-line tested in electrical railway .

根据移频轨道电路的特点，本文分析了电压、电流在线测量过程中采用的信号采集技术。

According to the characteristics of frequency shift track circuits , this paper has analyzed signal acquisition methods of voltage and current measurement on line .

铁路移频轨道电路的可靠性及其传输控制信号质量的好坏，将直接影响到列车的行车安全以及该区段的通过能力和列车的正点率。

The reliability of the track influences the safe operation of the railway , the flux capacity of the track and the punctual arrival of the train .

目前，在移频轨道电路中产生相位连续信号的方法主要有两种：直接调频法，频率转换法。

To generate the signal with continuous phase , two kind of methods : the direct frequency modulation and the frequency conversion method are used in the frequency-shift track circuit .

对于小于极限长度的移频轨道电路，推荐了调整电阻的选用方案：对道碴电阻的最低值保留裕量，还是对列车分流状态保留裕量。

With respect to track circuit of length other than ultimate ones , method of adjusting resistance selection is explained : either for the allowance of least ballast resistance or for the allowance of train-shunting sensitivity .

站内轨道电路电码化常出现发码时间滞后、码型奇变、侧线岔区无信号、移频轨道电路与交流计数轨道电路结合部易出现掉码等现象。

Code-sending time lags , pattern variations , absence of signals on side tracks or in switch sections and loss of codes in the connecting part between the frequency-shift modulated track circuit and AC counting track circuit often occur .

自动闭塞区间、站内采用移频轨道电路或电码化提供18个低频信息，除满足机车信号显示需要外，还满足列车超速防护装置对地面连续信息的要求。

In automatic blocking sections and within stations , 18 low-frequency messages are provided by the frequency-shift or coded track circuits to satisfy the requirements of the cab signal , as well as the requirements from ATP upon the wayside continuous messages .