铁路四显示自动闭塞--论文.doc

摘 要 我国铁路采用站间区间、所间区间或闭塞分区为列车运行的空间间隔。通过相邻车站、线路所、闭塞分区的设备或人为控制,使列车与列车互相保持一定间隔,以保证列车安全运行的行车方法,称为行车闭塞法铁路信号是组织行车运行,保证行车安全,提高运输效率,传递信息,改善行车人员劳动条件的关键技术。 本课题从四显示自动闭塞的运行原理方面来进行研究，主要要求了列车可以在绿灯显示的通过信号机通行；列车按规定速度越过黄显示的 HYPERLINK /item/%E9%80%9A%E8%BF%87%E4%BF%A1%E5%8F%B7%E6%9C%BA\t /_blank 通过信号机后必须减速；列车通过绿黄灯显示的通过信号机必须警惕；列车必须保证能在显示红灯的 HYPERLINK /item/%E4%BF%A1%E5%8F%B7%E6%9C%BA/6409752 \t /_blank 信号机前停车。而在越过黄绿灯后准备在红灯前停车。结合故障有车、安全情况下，跟随着小车所在位置的变化各区段通过信号机颜色发生变化。这样可以解决线路上以不同速度运行的列车的行车要求。 本设计提出一种基于51单片机系统的四显示自动闭塞系统。通过51单片机实时监测各区间的安全状况，并根据是否有故障点，以及故障点的位置，通过单片机运算处理，输出控制四显示自动闭塞LED指示灯的亮灭情况。 关键词：铁路安全，单片机，四显示，LED；自动闭塞 ABSTRACT Railway stations in our country adopt the interval between stations, the interval or the block area, which is the space interval of train running. Through the adjacent station, line, block device or manual control, to train and train each other to maintain a certain interval, in order to ensure the safe operation of the train driving method, called the traffic block method of railway signal is running, ensure traffic safety, improve transport efficiency, transmission of information, the key technology to improve the working conditions of driving personnel the. This paper from the four aspects of the automatic block display operation principle to carry on the research, the main requirements of the train can be displayed by traffic signal lights; the train crossed the Yellow display according to the specified speed through signal after the train must slow down; through the green and yellow lights showed through signal must be vigilant; train must ensure that can display parking the red light signal. And after crossing the traffic light, prepare to stop at the red light. Combined with the fault, there is a car, safety conditions, followed by the location of the car changes, each section changes through the signal color. This can solve the train running at different speeds on the line. A four display automati