摘要：信号在生活中必不可少,在公路,铁路等方面的应用更是举足轻重。在铁路和公路上如果没有信号就无法运行。铁路上火车在运行，如果没有一套信号制度，就没有办法保证列车安全运行。自有铁路以来，人们就约定以物体的外表特征，如形状、位置、颜色、灯光以及状态的显示数目等作为向乘务人员和行车有关人员传达运行条件和命令的信号[1]。对于信号灯的控制是有多种方式的,可以使用继电器控制,也可以使用PLC的控制。80903

对于继电器控制和PLC控制都是可行的，PLC相对体积小，能耗低，同时配线特别的少，而继电器是一种无触电，无火花的接通和断开被控电路的方式。现在中国的大部分铁路都是使用继电器控制。本文主要结合实际需要，结合轨道交通学院实验室实际情况，论述铁路信号灯的种类及在铁路信号系统中的作用，论述铁路信号灯常用的各类继电器电路。设计一个实验操作台，要求该操作台能完成上述的全部使用电路的实验连接并能实现各种信号灯的信号显示，及能相应显示信号灯的状态。画出全部实验电路三图，操作台结构图，列出操作台上元器件配置表，并说明该操作台的使用。

毕业论文关键词：继电器；信号灯；实验台：集成块

Design of signal lamp control circuit

Abstract:the signal is essential in life, in highway, railway and other aspects of application is more important。 On railways and highways, they cannot operate without signals。 Trains on the railway are running。 If there is no signal system, there will be no way to ensure the safe operation of trains。 Private railway since people have agreed to the appearance of objects, such as shape, position, color, lighting and the display of the state number as a message signal condition and commands to the relevant personnel and vehicle crew。 There are many ways to control a light signal。 You can use relay control or PLC control。

For relay control and PLC control is feasible, PLC relatively small size, low energy consumption, while wiring is particularly small, and the relay is a "no electric shock", "no spark" to connect and disconnect the controlled circuit。 Most of the railways in China are now controlled by relays。 In this paper, combined with the actual needs, combined with the actual situation of the laboratory of Rail Transportation College, this paper discussed the types of railway signal lights and in railway signal system, discusses the various types of commonly used railway signal lamp relay circuit。 The design of an experimental operating platform requires that the operating platform can complete the experiment connection of all the above-mentioned circuits, and can realize the signal display of various signal lights and display the status of the signal lamp accordingly。 Draw all the test circuit, operation table structure, operation table list component configuration table, and illustrate the use of the operating table。

KeyWords：Relay；Signal lamp；The experimental station；Integrated block

目录

1绪论 1

1。1 研究背景 1

1。2 国内外研究现状与水平 1

1。3 铁路信号的发展趋势 1

1。4 实验台的特点 2

2继电器的介绍 3

2。1 继电器的基本原理 3

2。2 继电器的作用 4

2。3 继电器的重要参数 4

2。4 各类继电器的实验电路