基于软件算法的电子化高压脉冲轨道电路接收器的研究与实现  

Research and Implementation of High-voltage Impulse Track Circuit Receiver Based on Software Algorithms

作　　者：任建新[1] 于训全 何文娟 REN Jianxin;YU Xunquan;HE Wenjuan(Hunan Vocational College of Railway Technologies,Zhuzhou Hunan 412000,China;CASCO Signal Ltd,Xi'an Shanxi 710016,China)

机构地区：[1]湖南铁路科技职业技术学院,湖南株洲412000 [2]卡斯柯信号有限公司,陕西西安710016

出　　处：《中央民族大学学报（自然科学版）》2020年第3期53-60,共8页Journal of Minzu University of China(Natural Sciences Edition)

基　　金：国家863科技计划资助项目(2013AA050401);国家科技型中小企业创新基金项目(11C26216203816)。

摘　　要：本文旨在利用软件算法改良高压脉冲轨道电路接收器,优化接收器系统结构。具体实现过程是:在轨道电路送、受电端之间新增一个传感器,用以采集送端发出的高压脉冲信号,并将该脉冲信号直接转发至受电端进行数字化处理,作为确定轨道电路状态的依据;受电端同时正常接收来自钢轨上的高压脉冲信号,先设置巴氏滤波器滤除该信号中的50Hz牵引电流的干扰成分,接着分别交由两套基于不同软件算法的系统处理后比较输出,两路输出结果与经由传感器的信号处理结果比较,从而确定轨道电路的运行状态,本文设计了两套分别基于FFT和Mallat的算法并进行了仿真实验。结果表明,系统处理速度及精确度明显提高,系统的实时性和可靠性显著改善;轨道电路分路灵敏度显著提高,完全符合"故障导向安全"原则;自动化程度相对于现有设备更高,维修更为便捷,有较广阔的应用前景。The paper aims at designing the track receiver by analyzing software algorithms,and optimizing the structure of the original receiver. It adds a sensor between transmitting terminal and receiving terminal,which receives the pulse signal from transmitting terminal and sends the signal to receiving terminal for disposing. Meanwhile,the receiving terminal takes over the high-voltage impulse signal from track circuit,whose 50 Hz traction current will be filtered by Butterworth Low-Pass filter,and then output after comparing by two sets of CPUs. Consequently,the key point of this paper is to design two sets of CPU for receiving terminal,which adopt two types of software algorithms namely FFT and the algorithm of Mallat respectively. It shows that the system has reached the qualities of high speed and accuracy,and obviously improved instantaneity and reliability. It is also shown that the scheme,which is more feasible,has a higher degree of automation and easier-to maintain than the original equipment in practical use. Hence,it is bound to own a very bright application prospect.

关 键 词：高压脉冲轨道电路 接收器 FFT算法 MALLAT算法 

分 类 号：U284.232[交通运输工程—交通信息工程及控制]