摘要随着社会zhuyi经济的发展和科学技术的进步，在当今铁路系统中，轨道电路 的完备程度对列车能否安全运行尤为重要。为了保证列车能够正常载客运行，日 常的检测和维护是铁路领域必不可少的一道程序。然而，现如今以维修人员依据 现实判断为主、人工智能技术的故障检测方法为辅的日常维护仍存在缺陷，例如 神经网络和遗传算法难以完全科学解释检测成果。因此，如何在有限的时间和条 件下帮助维修人员准确检测轨道电路故障，是信号系统的安全可靠运行的关键所 在。 69956

本文会给出一个采用粒子群优化算法检测故障的轨道电路分析。利用粒子群 算法来对轨道电路的故障进行分析。提出了一种改进二进制粒子群算法，并将其 用于轨道电路故障定位中。改进后的算法较好地改善了传统粒子群算法易于局部 收敛的缺点，对轨道电路故障分别进行了仿真计算，验证了该算法在轨道电路故 障检测中的可行性，并且验证了算法具有计算速度快、收敛性和容错性高的特点。 “故障-安全”原则，即是当器件、部件或系统发生故障时，能不产生危险侧输 出，更直接地说就是指铁路系统要求铁路器件、部件或系统在发生障碍、错误、 失灵的情况下，能够在安全侧输出或不能再危险侧输出，从而确保行车安全。基 于故障-安全的轨道电路才能够保障行车安全，才不会有产出危险侧输出的情况 发生。 

该论文有图 11 幅，表 4 个，参考文献 16 篇。 

毕业论文关键词:轨道电路  故障—安全 粒子群优化算法 

Study on Track Circuit Based on Fail Safe

Abstract

With the progress of socialist economic development and science and technology， in today's railway system， the degree of completeness of the track circuit is especially

important for safe operation of the train can. In order to ensure normal passenger trains run daily inspection and maintenance of railway areas is essential to the process. However， now with maintenance personnel according to the realities of judgement，

fault detection methods for artificial intelligence technology as a supplement of the daily maintenance is still flawed， such as neural networks and genetic algorithms are difficult to complete scientific explanation of test results. Therefore， in the limited time and conditions helps maintenance staff detected the track circuit failures， are the key to safe and reliable operation for the system. "Fail safe" principle， that equipment failure， can automatically guide security， specifically referring to railway   traffic

requirements of railway signaling equipment in disorder， error， failure of the case， should have led to mitigate or even avoid the loss of function in order to ensure road Safety.

" Fail safe " principle， that is， when the device， component or system failure，

cannot produce dangerous side output， more bluntly refers to the railway system requires railway devices， components or systems in the event of obstacles， mistakes， failures ， the output can no longer dangerous side or the output side in security， to ensure traffic safety. Fault - safe track circuit to be able to guarantee traffic safety， we

will not have dangerous side output of outputs occurred. This article will give a track fault detection circuit analysis PSO adoption.

Key word:Track circuit    Fail safe    Particle Swarm optimization

目 录

摘 要  I 

Abstract . II