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1、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
2、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ABSTRACTRailwaystationsinourcountryadopttheintervalbetweenstations,theintervalortheblockar
3、ea,whichisthespaceintervaloftrainrunning.Throughtheadjacentstation,line,blockdeviceormanualcontrol,totrainandtraineachothertomaintainacertaininterval,inordertoensurethesafeoperationofthetraindrivingmethod,calledthetrafficblockmethodofrailwaysignalisrunning,ensuretrafficsafe
4、ty,improvetransportefficiency,transmissionofinformation,thekeytechnologytoimprovetheworkingconditionsofdrivingpersonnelthe.Thispaperfromthefouraspectsoftheautomaticblockdisplayoperationprincipletocarryontheresearch,themainrequirementsofthetraincanbedisplayedbytrafficsignall
5、ights;thetraincrossedtheYellowdisplayaccordingtothespecifiedspeedthroughsignalafterthetrainmustslowdown;throughthegreenandyellowlightsshowedthroughsignalmustbevigilant;trainmustensurethatcandisplayparkingtheredlightsignal.Andaftercrossingthetrafficlight,preparetostopatthere
6、dlight.Combinedwiththefault,thereisacar,safetyconditions,followedbythelocationofthecarchanges,eachsectionchangesthroughthesignalcolor.Thiscansolvethetrainrunningatdifferentspeedsontheline.Afourdisplayautomaticblocksystembasedon51singlechipmicrocomputersystemisproposedinthis
7、design.Throughthesecuritystatusof51single-chipreal-timemonitoringofeachinterval,andaccordingtowhetherthereisafaultpointandfaultpoint,throughthesingle-chipprocessing,outputcontrolfourdisplaybrightLEDlightsautomaticblock.Keywords:railwaysafety,singlechipmicrocomputer,fourdisp
8、lay,LED,automaticblock目录摘要2ABSTRACT3目录41绪论51.1课题背景51.2课题意义51.3研究思路和技术方法52火车行车闭塞法介绍