部分图片来源于网络 Some pictures come from the Internet.-列车运行控制系统维护 Maintenance of Train Operation Control System-1737991585616

铁道信号自动控制专业教学资源库TeachingResourceDatabasefortheSpecialtyofAutomaticControlforRailwaySignal列车运行控制系统维护MaintenanceofTrainOperationControlSystem柳州铁道职业技术学院LiuzhouRailwayVocationalTechnicalCollege部分图片来源于网络SomepicturescomefromtheInternet.叠加电码化设计原则DesignPrincipleofOverlappingCoding一、叠加电码化设计原则I.DesignPrincipleofOverlappingCoding叠加式电码化的提出Proposalofoverlappingcoding占用叠加发码Occupancyoverlappingcoding设计原则Designprinciple要使机车信号稳定工作，则机车信号接收中断时间应小于机车信号制式允许的最大时间。这就提出了叠加式电码化电路。叠加发码通过电气隔离设备将轨道电路与电码化并接在一起，使轨道信息的发送、接收和电码化信息的发送，同时接向钢轨，将完成发码所需的时间降低到最小。Tomakethelocomotivesignalworkstably,thereceivinginterruptiontimeofthelocomotivesignalshallbelessthanthemaximumtimeallowedbythelocomotivesignalsystem.Therefore,anoverlappingcodedcircuitwasproposed.Overlappingcodingconnectsthetrackcircuitandcodinginparallelthroughelectricalisolationequipment,sothatthesendingandreceptionoftrackinformationandthesendingofcodinginformationareconnectedtotherailatthesametime,thusminimizingthetimerequiredforcompletingcoding.DesignPrincipleofOverlappingCoding叠加式电码化的提出Proposalofoverlappingcoding占用叠加发码Occupancyoverlappingcoding设计原则Designprinciple叠加发码又分为“占用叠加发码”和“预先叠加发码”两种。刚占用本轨道区段便开始叠加发码称为“占用叠加发码”；刚占用本区段则下一个区段便开始提前叠加发码称为“预先叠加发码”。Overlappingcodingisdividedinto"occupancyoverlappingcoding"and"pre-overlappingcoding".Overlappingcodingimmediatelyafteroccupyingthetracksectioniscalled"occupancyoverlappingcoding";pre-overlappingcodingfromthenextsectionimmediatelyafteroccupyingthissectioniscalled"pre-overlappingcoding".“占用叠加发码”方式允许的最大接收中断时间0.2～0.4s，小于0.6s电码化脉动断开时间，不影响机车信号正常工作，只影响机车信号的应变时间。但当列车速度进一步提高时，短区段连续存在时，仍会影响机车信号的正常工作。Themaximumreceivinginterruptiontimeallowedbythe"occupancyoverlappingcoding"modeis0.2~0.4s,whichislessthanthecodingpulsedisconnectiontimeof0.6s.Itdoesnotaffectthenormalworkofthelocomotivesignalbutonlyaffectstheresponsetimeofthelocomotivesignal.However,whenthetrainspeedisfurtherincreasedandshortsectionscontinuetoexist,thenormaloperationofthelocomotivesignalwillstillbeaffected.DesignPrincipleofOverlappingCoding叠加式电码化的提出Proposalofoverlappingcoding占用叠加发码Occupancyoverlappingcoding设计原则Designprinciple电路设计必须满足铁路信号“故障—安全”的原则。室内故障或室外电缆一处混线时，不应发送晋级显示的信息和向其他区段发码。Thecircuitdesignmustmeettheprincipleof"failure-safety"forrailwaysignaling.Incaseofindoorfailureormixedoutdoorcables,itisnotallowedtosendtheinformationdisplayingpromotionandsendcodestoothersections.在最不利条件下，入口电流应满足机车信号的工作需要。Underthemostunfavorableconditions,theinletcurrentshallmeettheworkingneedsofthelocomotivesignal.电码化不应降低原有轨道电路的基本技术性能。Codingshallnotdegradethebasictechnicalperformanceoftheoriginaltrackcircuit.列车冒进信号时，其占用的所有咽喉区段不应发码；列车冒进枢纽的绝对信号机时，至少其内方第一区段不发码。Whenthetrainoverrunsthesignal,allthroatsectionsoccupiedbyitshallnotsendcodes;whenthetrainoverrunstheabsolutesignaloftheterminal,atleastthefirstsectioninsideitshallnotsendcodes.已发码的区段，当区段空闲后，轨道电路应能自动恢复到调整状态。Forthecodedsection,whenthesectionisunoccupied,thetrackcircuitshallbeabletoautomaticallyrestoretotheadjustmentstate.DesignPrincipleofOverlappingCoding叠加式电码化的提出Proposalofoverlappingcoding占用叠加发码Occupancyoverlappingcoding设计原则Designprinciple列车进行摘挂作业时，不应终止发码。Codingshallnotbeterminatedduringthecouplinganddecouplingofthetrain.有效电码中断的最长时间，应不大于机车信号允许中断的最短时间。Themaximuminterruptiontimeofvalidcodeshallnotbegreaterthantheminimuminterruptiontimeallowedbythelocomotivesignal.电码化应提供能满足机车信号稳定工作的条件，提速区段应采用预叠加电码化。Codingshallprovideconditionsthatcanmeetthestableworkofthelocomotivesignal,andpre-overlappingcodingshallbeadoptedforspeed-upsections.当主设备故障时，副设备自动投入使用。Whenthemainequipmentfails,theauxiliaryequipmentwillautomaticallybeputintouse.股道的发码设备专用时设单套，共用时设双套。正线接、发车进路的发码设备设双套。Asetofcodingequipmentshallbeprovidedforadedicatedtrackandtwosetsofcodingequipmentshallbeprovidedforsharedtracks.Twosetsofcodingequipmentshallbeprovidedforthemaintrackreceivinganddepartureroutes.电码化发码设备应加装监测装置。Thecodingequipmentshallbeequippedwithamonitoringdevice.DesignPrincipleofOverlappingCoding叠加式电码化的提出Proposalofoverlappingcoding占用叠加发码Occupancyoverlappingcoding设计原则Designprinciple电码化发码设备应加装防雷。Thecodingequipmentshallbeequippedwithalightningprotectiondevice.电码化不应损坏轨道电路设备。Codingshallnotdamagetrackcircuitequipment.电码化信息传输应与轨道电路信息传输合用电缆芯线。Codinginformationtransmissionshallsharethecablecorewithtrackcircuitinformationtransmission.机车信号机的显示应符合《中华人民共和国铁路技术管理规程》的规定，特殊情况报请有关部门批准后执行。ThedisplayofthelocomotivesignalshallcomplywiththeprovisionsoftheRegulationsofRailwayTechnicalOperationofthePeople'sRepublicofChina,andspecialcircumstancesshallbereportedtorelevantdepartmentsforapprovalbeforeimplementation.DesignPrincipleofOverlappingCoding补偿电容的计算、叠加方式站内轨道电路电码化类型CalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes一、补偿电容设置I.SettingofCompensationCapacitor补偿电容设置Settingofcompensationcapacitor设置方法

等间距Δ=L/∑Settingmethod:equalspacingΔ=L/∑Δ为等间距，L为轨道电路长度，∑为电容数量Δistheequalspacing,Listhetrackcircuitlengthand∑isthenumberofcapacitors电容数量Σ=N+A，N：百米位数，A：个位、拾位数为0时为0个位、拾位数不为0时为1。NumberofcapacitorsΣ=N+A,N:hundred-meterdigit;A:0whentheunitsandtensdigitsare0;1whentheunitsandtensdigitsarenot0.序号S/N电容容量Capacitorcapacity载频Frequency载频Frequency180μF1700Hz2000Hz260μF2300Hz2600HzCalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes举例：Example:假如轨道电路长度为L=900mIfthetrackcircuitlengthisL=900mN=9A=0Σ=9+0=9，N=9A=0Σ=9+0=9,等间距Δ=900/9=100m，半间距Δ/2=100/2=50mEqualspacingΔ=900/9=100m,halfspacingΔ/2=100/2=50mC1C2C3C4C5C6C8C950m100m100m100m100m100m100m100m补偿电容安装图InstallationDiagramofCompensationCapacitor50m100mC7机诫绝缘节MechanicalinsulationjointCalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes1、车站轨道电路电码化类型1.CodingTypeofStationTrackCircuit非电化牵引区段交流连续式轨道电路（480轨道电路）及25Hz相敏轨道电路叠加ZPW－2000系列电码化电路。ACcontinuoustrackcircuit(480trackcircuit)and25Hzphase-sensitivetrackcircuit(PSTC)innon-electrifiedtractionsections+ZPW-2000seriescodedcircuits.电化牵引区段25Hz相敏轨道电路叠加ZPW－2000电码化电路。它们各有二线制和四线制电码化电路。The25HzPSTCinnon-electrifiedtractionsections+ZPW-2000codedcircuit.Theyhavetwo-wireandfour-wirecodedcircuitsrespectively.二线制电码化电路指电码化电路利用原轨道电路的送电端或受电端的两根电缆芯线送往钢轨。Thetwo-wirecodedcircuitmeansthatthecodedcircuitusestwocablecoresatthefeedendorreceivingendoftheoriginaltrackcircuittosendpowertotherail.四线制电码化电路指电码化电路另外增加两根电缆芯线送往钢轨。Thefour-wirecodedcircuitmeansthattwoadditionalcablecoresareaddedtothecodingcircuitforsendingpowertotherail.CalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes二线制电化区段25Hz相敏轨道电路+ZPW-2000电码化25HzPSTCintwo-wireelectrifiedsections+ZPW-2000coding四线制非电化区段480轨道电路叠加ZPW-2000电码化480trackcircuitinfour-wirenon-electrifiedsections+ZPW-2000coding四线制非电化区段25Hz相敏轨道电路叠加ZPW-2000电码化25HzPSTCinfour-wirenon-electrifiedsections+ZPW-2000coding二线制非电化区段25Hz相敏轨道电路+ZPW-2000电码化25HzPSTCintwo-wirenon-electrifiedsection+ZPW-2000coding二线制非电化区段480轨道电路叠加ZPW-2000电码化480trackcircuitintwo-wirenon-electrifiedsections+ZPW-2000coding四线制电化区段25Hz相敏轨道电路叠加ZPW-2000电码化25HzPSTCinfour-wireelectrifiedsections+ZPW-2000codingCalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes2.举例2.ExampleCalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes2.举例2.ExampleCalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes2.举例2.ExampleCalculationofCompensationCapacitorandCodingTypesofIn-stationTrackCircuitinVariousOverlappingModes二线制叠加方式站内电码化载频频率的排列ArrangementofIn-stationCodingFrequencyinTwo-wireOverlappingMode1、载频频谱的排列1.ArrangementofFrequencySpectrum

①下行正线，咽喉区正向接车、发车进路的载频为1700-2。为防止进、出站处钢轨绝缘破损，-1、-2载频可与区间ZPW-2000轨道电路-1、-2载频交错。正线股道的载频为1700-2。①Thefrequencyofforwardreceivinganddepartureroutesinthedownthroatareaofthemaintrackis1700-2.Topreventrailinsulationdamageattheentranceandexit,frequencies-1and-2canbestaggeredwithfrequencies-1and-2ofthesectionZPW-2000trackcircuit.Thefrequencyofthemaintrackis1700-2.

②上行正线，咽喉区正向接车、发车进路的载频为2000-2。为防止进、出站处钢轨绝缘破损，-1、-2载频可与区间ZPW-2000轨道电路-1、-2载频交错。正线股道的载频为2000-2。②Thefrequencyofforwardreceivinganddepartureroutesintheupthroatareaofthemaintrackis2000-2.Topreventrailinsulationdamageattheentranceandexit,frequencies-1and-2canbestaggeredwithfrequencies-1and-2ofthesectionZPW-2000trackcircuit.Thefrequencyofthemaintrackis2000-2.

③侧线股道③Sidingtrack下行正方向，各股道按下行方向载频2300-1Hz、1700-1Hz交错排列。Forthedownpositivedirection,eachtrackisstaggeredaccordingtothefrequenciesof2300-1Hzand1700-1Hzinthedowndirection.上行正方向，各股道按上行方向载频2600-1Hz、2000-1Hz交错排列。Fortheuppositivedirection,eachtrackisstaggeredaccordingtothefrequenciesof2600-1Hzand2000-1Hzintheupdirection.到发线股道以1700-1Hz/2000-1Hz或2300-1Hz/2600-1Hz选择载频配置。1700-1Hz/2000-1Hzor2300-1Hz/2600-1Hzisselectedasthefrequencyofthereceiving-departuretrack.ArrangementofIn-stationCodingFrequencyinTwo-wireOverlappingMode2.站内电码化载频频率的布置2.ArrangementofIn-stationCodingFrequency站内正线接发车进路采用2系载频，侧线股道采用1系载频间隔布置。Thereceivinganddepartureroutesofthemaintrackinthestationarearrangedwithsecondaryfrequency,andthesidingtrackisarrangedatintervalswithprimaryfrequency.A.正线A.Maintrack下行正线正向接、发车进路和股道的载频为1700-2.Thefrequencyofforwardreceivinganddepartureroutesandtracksonthedownmaintrackis1700-2.上行正线正向接、发车进路和股道的载频为2000-2.Thefrequencyofforwardreceivinganddepartureroutesandtracksontheupmaintrackis2000-2.正线正向接、发车进路和股道载频可根据需要选择另一线路为-2载频。Forthefrequencyoftheforwardreceivinganddepartureroutesandtracksofthemaintrack,anotherlinecanbeselectedas-2frequencyaccordingtoneeds.为防止进出站处钢轨绝缘破损，站内-1，-2载频应与区间ZPW-2000轨道电路-1，-2载频交错。Topreventrailinsulationdamageattheentranceandexit,frequencies-1and-2inthestationshallbestaggeredwithfrequencies-1and-2ofthesectionZPW-2000trackcircuit.ArrangementofIn-stationCodingFrequencyinTwo-wireOverlappingModeB.侧线股道B.Sidingtrack各股道两端，下行方向载频按2300-1、1700-1交错排列，上行方向载频按2600-1、2000-1交错排列。Atbothendsofeachtrack,thefrequencies2300-1and1700-1arestaggeredinthedowndirectionandthefrequencies2600-1and2000-1arestaggeredintheupdirection.相邻侧线股道，以1700-1、2000-1与2300-1/2600-1载频交错配置。Foradjacentsidingtracks,thefrequencies1700-1and2000-1andthefrequency2300-1/2600-1arestaggered.ArrangementofIn-stationCodingFrequencyinTwo-wireOverlappingModeArrangementofIn-stationCodingFrequencyinTwo-wireOverlappingMode正线正方向接车进路预叠加电码化电路Pre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute继电器电路Relaycircuit电码化电路举例Exampleofcodedcircuit发码电路Codingcircuit1、JMJ电路1.JMJcircuit2、CJ电路2.CJcircuit3、FMJ电路3.FMJcircuit1、信息编码1.Informationcoding2、编码电路2.Codingcircuit1、正线正方向接车进路加电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoute2、正线反方向接车进路电码化电路2.CodedCircuitofMainTrackNegativeDirectionReceivingRoute3、发车进路电码化电路3.CodedCircuitofDepartureRoute4、到发线股道电码化电路4.CodedCircuitofReceiving-departureTrackPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute1、继电器控制电路1.RelayControlCircuit继电器接点RelaycontactPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute1、继电器控制电路1.RelayControlCircuitZXJLXJGJ1LQJ几个常用继电器Severalcommonrelays---正线继电器；---Maintrackrelay;---列车信号继电器；---Trainsignalrelay;---股道区段轨道继电器；---Trackrelayintracksection;---离去区段轨道继电器。---Trackrelayindeparturesection.Pre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute1、继电器控制电路1.RelayControlCircuit每一个接车方向设一个JMJ。JMJ↑说明建立的是正线接车进路。SetaJMJforeachreceivingdirection.JMJ↑indicatesthatthemaintrackreceivingrouteisestablished.（1）JMJ接车发码继电器电路(1)JMJreceivingcodingrelaycircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DGPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute1、继电器控制电路1.RelayControlCircuit每一轨道区段设一个CJ

。用于控制发送器向轨道区段发送移频信号的时机。SetaCJforeachtracksection.Itisusedtocontrolthetimingwhenthetransmittersendsthefrequencyshiftsignaltothetracksection.（2）CJ传输继电器电路(2)CJtransmissionrelaycircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DGPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute1、继电器控制电路1.RelayControlCircuit平时，XFMJ落下状态Normally,XFMJisde-energized（3）FMJ继电器电路(3)FMJrelaycircuitPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute2、发码电路2.CodingCircuit所谓编码电路即电码化移频发送盒的低频信息控制电路。低频信息控制电路由进、出站信号电路有关继电器接点构成。Theso-calledcodingcircuitisthelow-frequencyinformationcontrolcircuitofthecodedfrequencyshifttransmissionbox.Thelow-frequencyinformationcontrolcircuitconsistsofrelaycontactsofinboundandoutboundsignalcircuits.（1）信息编码(1)Informationcoding出站信号机显示StartingsignaldisplayLXJFZXJF2LQJF3LQJF发送信息码Sendinformationcode红Red↓HU绿（侧向发车）Green(lateraldeparture)↑↓UU黄Yellow↑↑↓U绿黄Greenandyellow↑↑↑↓LU绿Green↑↑↑↑LPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute2、发码电路2.CodingCircuit（2）编码电路(2)CodingcircuitPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute（3）发码电路(3)Codingcircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DGPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute3、电码化电路举例3.ExamplesofCodedCircuit1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoute2、正线反方向接车进路电码化电路2.CodedCircuitofMainTrackNegativeDirectionReceivingRoute3、正线正方向发车进路电码化电路3.CodedCircuitofMainTrackPositiveDirectionDepartureRoute4、到发线股道电码化电路4.CodedCircuitofReceiving-departureTrackPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute以X→ⅠG道接车进路为例TakingX→IGtrackreceivingrouteasanexample→XLXJ↑XZXJ↑1GJF↑→XJMJ↑→XIJMJ↑排列进路，开放信号Routesettingandsignalclearing1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoute1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DGPre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入3JGThetrainenters3JG3JGJ↓→1AGCJ↑（1-2）→

经XJMJ向1AG发码3JGJ↓→1AGCJ↑(1-2)→sendcodeto1AGviaXJMJ列车进入1AGThetrainenters1AG1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DG1AGJ↓→1AGCJ↑（3-4）→经XJMJ向1AG发码1AGJ↓→1AGCJ↑(3-4)→sendcodeto1AGviaXJMJ

→5DGCJ↑（1-2）→经XJMJ向5DG发码→5DGCJ↑(1-2)→sendcodeto5DGviaXJMJ

→XLXJ↓1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入5DGThetrainenters5DG5DGJ↓→5DGCJ↑（3-4）→经XJMJ向5DG发码5DGJ↓→5DGCJ↑(3-4)→sendcodeto5DGviaXJMJ

→3DGCJ↑（1-2）→经XJMJ向3DG发码→3DGCJ↑(1-2)→sendcodeto3DGviaXJMJ→1AGCJ↓→1AG恢复原轨道电路→1AGCJ↓→1AGrestorestheoriginaltrackcircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DG1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入3DGThetrainenters3DG3DGJ↓→3DGCJ↑（3-4）→经XJMJ向3DG发码3DGJ↓

→3DGCJ↑(3-4)→sendcodeto3DGviaXJMJ

→9-15DGCJ↑（1-2）→经XJMJ向9-15DG发码

→9-15DGCJ↑(1-2)

→sendcodeto9-15DGviaXJMJ

→5DGCJ↓→5DG恢复原轨道电路

→5DGCJ↓

→5DGrestorestheoriginaltrackcircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DG1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入9-15DGThetrainenters9-15DG9-15DGJ↓→9-15DGCJ↑（3-4）→经XJMJ向9-15DG发码9-15DGJ↓

→9-15DGCJ↑(3-4)→sendcodeto9-15DGviaXJMJ

→17-23DGCJ↑（1-2）→经XJMJ向17-23DG发码

→17-23DGCJ↑(1-2)

→sendcodeto17-23DGviaXJMJ

→3DGCJ↓→3DG恢复原轨道电路

→3DGCJ↓

→3DGrestorestheoriginaltrackcircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DG1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入17-23DGThetrainenters17-23DG17-23DGJ↓→17-23DGCJ↑（3-4）→经XJMJ向17-23DG发码17-23DGJ↓

→17-23DGCJ↑(3-4)→sendcodeto17-23DGviaXJMJ

→IGCJ↑（1-2）→经IGCJ向IG发码

→IGCJ↑(1-2)→sendcodetoIGviaIGCJ

→9-15DGCJ↓→9-15DG恢复原轨道电路

→9-15DGCJ↓→9-15DGrestorestheoriginaltrackcircuit1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DG1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入IGThetrainentersIGIGJ↓→IGCJ↑（3-4）→IGCJ向IG发码IGJ↓→IGCJ↑(3-4)→sendcodetoIGviaIGCJ

→17-23DGCJ↓→17-23DG恢复原轨道电路→17-23DGCJ↓→17-23DGrestorestheoriginaltrackcircuit→XJMJ↓1AG5DG9-15DGⅠG17-23DG3JGXXⅠ163DG1、正线正方向接车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute正线反方向接车进路预叠加电码化电路Pre-overlappingCodedCircuitofMainTrackNegativeDirectionReceivingRoute

1、正线反方向接车进路电码化电路1.CodedCircuitofMainTrackNegativeDirectionReceivingRoute排列进路，开放信号Routesettingandsignalclearing→SFLXJ↑SFZXJ↑IGJF↑→SFJMJ↑→SIJMJ↑Pre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车驶入一离去区段ThetrainentersadeparturesectionX1LQJ↓→4DGCJ↑（3-4）→经SFJMJ向4DG发码X1LQJ↓→4DGCJ↑(3-4)→sendcodeto4DGviaSFJMJ→SFLXJ↓1、正线反方向接车进路电码化电路1.CodedCircuitofMainTrackNegativeDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入4DGThetrainenters4DG4DGJ↓→4DGCJ↑（1-2）→经SFJMJ向4DG发码4DGJ↓→4DGCJ↑(1-2)→sendcodeto4DGviaSFJMJ

→8-10DGCJ↑（3-4）→经SFJMJ向8-10DG发码→8-10DGCJ↑(3-4)→sendcodeto8-10DGviaSFJMJ列车驶入8-10DGThetrainenters8-10DG8-10DGJ↓→8-10DGCJ↑（1-2）→经SFJMJ向8-10DG发码8-10DGJ↓→8-10DGCJ↑(1-2)→sendcodeto8-10DGviaSFJMJ

→16-18GCJ↑（3-4）→经SFJMJ向16-18DG发码→16-18GCJ↑(3-4)→sendcodeto16-18DGviaSFJMJ→4DG恢复原轨道电路→4DGrestorestheoriginaltrackcircuit1、正线反方向接车进路电码化电路1.CodedCircuitofMainTrackNegativeDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute列车进入16-18DGThetrainenters16-18DG16-18DGJ↓→16-18DGCJ↑（1-2）→经SFJMJ向16-18DG发码16-18DGJ↓→16-18DGCJ↑(1-2)→sendcodeto16-18DGviaSFJMJ

→1GCJ↑（1-2）→经IDCJ向IG发码→1GCJ↑(1-2)→sendcodetoIGviaIDCJ→8-10DG恢复原轨道电路→8-10DGrestorestheoriginaltrackcircuit列车驶入IGThetrainentersIGIGJ↓→IGCJ↑（3-4）→经IGCJ向IG发码IGJ↓→IGCJ↑(3-4)→sendcodetoIGviaIGCJ→16-18DG恢复原轨道电路→16-18DGrestorestheoriginaltrackcircuit

→SFJMJ↓1、正线反方向接车进路电码化电路1.CodedCircuitofMainTrackNegativeDirectionReceivingRoutePre-overlappingCodedCircuitofMainTrackPositiveDirectionReceivingRoute正线发车进路预叠加电码化电路Pre-overlappingcodedcircuitofmaintrackdepartureroute以XI发车进路为例TakingXIdeparturerouteasanexampleXILXJ↑XIZXJ↑XILQJ↑→XIFMJ↑排列进路，开放信号Routesettingandsignalclearing1、正线正方向发车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionDepartureRoutePre-overlappingCodedCircuitofMainTrackDepartureRouteIGJF↓→

16-18DGCJ↑（3-4），经XIFMJ向16-18DG发码IGJF↓→16-18DGCJ↑(3-4),sendcodeto16-18DGviaXIFMJ列车在IGThetrainisinIG16-18DGJF↓→

16-18DGCJ↑（1-2），经XIFMJ向16-18DG发码16-18DGJF↓→16-18DGCJ↑(1-2),sendcodeto16-18DGviaXIFMJ

→

8-10DGCJ↑（3-4），经

XIFMJ向8-10DG发码→8-10DGCJ↑(3-4),sendcodeto8-10DGviaXIFMJ→IG恢复原轨道电路→IGrestorestheoriginaltrackcircuit→X1LXJ↓列车驶入16-18DGThetrainenters16-18DG1、正线正方向发车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionDepartureRoutePre-overlappingCodedCircuitofMainTrackDepartureRoute8-10DGJF↓→

8-10DGCJ↑（1-2），经XIFMJ向8-10DG发码8-10DGJF↓→8-10DGCJ↑(1-2),sendcodeto8-10DGviaXIFMJ

→4DGCJ↑（3-4），经XIFMJ向4DG发码→4DGCJ↑(3-4),sendcodeto4DGviaXIFMJ

→

16-18DG恢复原轨道电路→16-18DGrestorestheoriginaltrackcircuit列车驶入8-10DGThetrainenters8-10DG1、正线正方向发车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionDepartureRoutePre-overlappingCodedCircuitofMainTrackDepartureRoute4DGJF↓→

4DGCJ↑（1-2），经XIFMJ向4DG发码4DGJF↓→4DGCJ↑(1-2),sendcodeto4DGviaXIFMJ

→

8-10DG恢复原轨道电路→8-10DGrestorestheoriginaltrackcircuit列车驶入4DGThetrainenters4DG1、正线正方向发车进路电码化电路1.CodedCircuitofMainTrackPositiveDirectionDepartureRoutePre-overlappingCodedCircuitofMainTrackDepartureRoute机车信号载频的锁频LockingofLocomotiveSignalFrequency一、机车信号载频自动切换I.AutomaticSwitchingofLocomotiveSignalFrequency（一）机车信号载频自动切换的作用(I)Functionofautomaticswitchingoflocomotivesignalfrequency机车信号载频自动切换系统，解决了列车在上下行线间转线运行时由人工进行切换所存在的手续烦琐、切换地点不明确、切换时机难于掌握等问题。解决了机车信号载频邻线同载干扰的问题。Thelocomotivesignalfrequencyautomaticswitchingsystemsolvestheproblemssuchascomplicatedprocedures,unclearswitchinglocations,anddifficultytomastertheswitchingtimewhentrainsaremanuallyswitchedbetweenupanddowntracks,andtheproblemofsame-loadinterferencebetweenadjacenttracksintermsoflocomotivesignalfrequency.LockingofLocomotiveSignalFrequency（二）载频频谱配置(II)Configurationoffrequencyspectrum1、下行正线，咽喉区正向接车、发车进路的载频为1700-2。1.Thefrequencyofforwardreceivinganddepartureroutesinthedownthroatareaofthemaintrackis1700-2.为防止进、出站处钢轨绝缘破损，-1、-2载频可与区间ZPW-2000轨道电路-1、-2载频交错。正线股道的载频为1700-2。Topreventrailinsulationdamageattheentranceandexit,frequencies-1and-2canbestaggeredwithfrequencies-1and-2ofthesectionZPW-2000trackcircuit.Thefrequencyofthemaintrackis1700-2.2、上行正线，咽喉区正向接车、发车进路的载频为2000-2。2.Thefrequencyofforwardreceivinganddepartureroutesintheupthroatareaofthemaintrackis2000-2.为防止进、出站处钢轨绝缘破损，-1、-2载频可与区间ZPW-2000轨道电路-1、-2载频交错。正线股道的载频为2000-2。Topreventrailinsulationdamageattheentranceandexit,frequencies-1and-2canbestaggeredwithfrequencies-1and-2ofthesectionZPW-2000trackcircuit.Thefrequencyofthemaintrackis2000-2.3、侧线股道3.Sidingtrack下行正方向，各股道按下行方向载频2300-1Hz、1700-1Hz交错排列。Forthedownpositivedirection,eachtrackisstaggeredaccordingtothefrequenciesof2300-1Hzand1700-1Hzinthedowndirection.上行正方向，各股道按上行方向载频2600-1Hz、2000-1Hz交错排列。Fortheuppositivedirection,eachtrackisstaggeredaccordingtothefrequenciesof2600-1Hzand2000-1Hzintheupdirection.一、机车信号载频自动切换I.AutomaticSwitchingofLocomotiveSignalFrequencyLockingofLocomotiveSignalFrequency一、机车信号载频自动切换I.AutomaticSwitchingofLocomotiveSignalFrequency（三）机车信号载频的锁频(III)Lockingoflocomotivesignalfrequency当机车信号车载设备接收到ZP码-25.7Hz载频切换信息后，自动将接收载频范围锁定在该载频上，对其它载频不予接收，直到再次接收到新的25.7Hz信息。Whenthelocomotivesignalon-boardequipmentreceivesZPcode-25.7Hzfrequencyswitchinginformation,itwillautomaticallylockthereceivingfrequencyrangeonthisfrequencyandwillnotreceiveotherfrequenciesuntilreceivinganew25.7Hzmessageagain.(1)站内正线股道的锁频(1)Frequencylockingofmaintrackinthestation(2)侧线股道的锁频(2)Frequencylockingofsidingtrack(3)区间线路的锁频(3)FrequencylockingofsectionlineLockingofLocomotiveSignalFrequency一、机车信号载频自动切换I.AutomaticSwitchingofLocomotiveSignalFrequency(1)站内正线股道的锁频(1)Frequencylockingofmaintrackinthestation对于直进直出的正线接、发车进路没有站内股道锁频问题，不需发送切换载频信息。Forstraight-inandstraight-outmaintrackreceivinganddepartureroutes,thereisnoproblemintrackfrequencylockinginthestation,soitisnotnecessarytosendfrequencyswitchinginformation.对于弯进直出进路往往是列车改变线路运行，存在载频选频锁频问题，采用2系载频+25.7Hz的方法，即压入后先发2S的25.7Hz信息。Forcurvedstraight-inandstraight-outroutes,thetrainoftenchangestheoperationline,whichhastheproblemoffrequencyselectionandfrequencylocking.Themethodofsecondaryfrequency+25.7Hzisadopted,thatis,2Sfrequency25.7Hzinformationissentfirstafterpressing.LockingofLocomotiveSignalFrequency一、机车信号载频自动切换I.AutomaticSwitchingofLocomotiveSignalFrequency(2)侧线股道的锁频(2)Frequencylockingofsidingtrack向侧线股道接车为弯进进路，存在载频选频锁频问题，需要发送切换载频信息，采用1系载频