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1、兰州交通大学毕业设计（论文）摘要电码化是保证机车在站内安全的一项重要技术，机车在站内从钢轨上收到电码化信息，使机车信号连续。目前，主要有预叠加和闭环电码化两种方式。A站设计采用电气化25Hz相敏轨道电路叠加ZPW-2000A闭环电码化。平时（进路未建立）发送端发送JC码，对整个发送通道进行检测，保证发送通道正常，使机车能收到叠加在轨道电路上的移频信息。实现了对轨道电路、发送器等设备故障的检查，并提供故障报警功能。A站ZPW-2000A闭环电码化设计有图纸和说明书两部分。图纸部分完成了对A站站场信号平面布置；电码化机柜布置，其中包
2、括站内移频柜、检测柜、综合柜；上行正向接车、正向发车、正线IIG、侧线股道(4G)电码化电路设计；N+1冗余发送设备电路设计，正线、侧线(4G)电码化检测电路设计。说明书则是结合设计图纸，阐述其工作原理，实际方法、思路。主要对发码、检测等设备的介绍，以及配线，电路工作的一些状态进行分析。A站ZPW-2000A闭环电码化设计是根据铁路信号施工设计与规范进行设计的，图纸设计满足ZPW-2000A闭环电码化系统的工作原理。关键词：闭环电码化；上行正向；N+1冗余-IV-兰州交通大学毕业设计（论文）AbstractCodingisani
3、mportanttechnologytoguaranteethelocomotiveatthestationsafe,locomotive inthestation fromthe railreceived code information, sothatthecabsignalcontinuously.Currently,therearepre-superpositionandclosed-loopcodingintwoways.Astationdesignuseselectrified25Hzphasesensitivetr
4、ackcircuitoverlayZPW-2000Aclosed-loopcoding.Usually(routeisnot setup),thecodersendtheJC code,todetectthe transmission channel, toensurethe normal transmission channel, sothelocomotive canreceivethe frequency-shiftinformation superimposedonthe trackcircuit. Implements
5、inspectionoftrackcircuit,transmitterandotherequipmentfailures,andprovidesfaultalarm.Astation ZPW-2000A closed-loopcoding design hastwoparts drawingsandinstructions.DrawingpartiallycompletedAstationfieldsignallayout,codeofcabinetlayout,includingthestationfrequency-shi
6、ftcabinet,testingcabinet,integratedcabinets.Upforwarddirectionreceivingroute,departureroute,maintrackIIG,sidingtrack(4G)codecircuitdesign,N+1redundantcodercircuitdesign,andthecodedetectioncircuitdesignofmaintrack,sidingline(4G).Instructionsaccordingtothedesigndrawing
7、s,describesitsworkingprinciples,theactualmethods,trainofthought.Mainlyintroducedthecode,testingequipment,andthewiring,somestatecircuitanalysis.Astation ZPW-2000A closed-loopcoding designisdesignedaccordingtothe designand specification ofrailwaysignal construction.The
8、designofdrawingmeetstheworkingprincipleofZPW-2000A closed-loopcodingsystem.KeyWords:Closed-loopcoding,Upforwarddirection,N+1redunda
