WO2021088627A1 - 基于轨道电路的列车临时限速下达方法及系统 - Google Patents

基于轨道电路的列车临时限速下达方法及系统 Download PDF

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Publication number
WO2021088627A1
WO2021088627A1 PCT/CN2020/121772 CN2020121772W WO2021088627A1 WO 2021088627 A1 WO2021088627 A1 WO 2021088627A1 CN 2020121772 W CN2020121772 W CN 2020121772W WO 2021088627 A1 WO2021088627 A1 WO 2021088627A1
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speed limit
information
temporary speed
track circuit
temporary
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PCT/CN2020/121772
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English (en)
French (fr)
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于晓泉
陈立华
赵丽
赵泽
刘鸿飞
岳超鹏
杨明春
贾云光
许林
姚文华
张文汇
程光红
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北京全路通信信号研究设计院集团有限公司
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Publication of WO2021088627A1 publication Critical patent/WO2021088627A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L23/00—Control, warning or like safety means along the route or between vehicles or trains

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  • the invention relates to a train control system, in particular to a method and a system for issuing a temporary speed limit of a train based on a track circuit.
  • Temporary Speed Restriction is defined as a real-time speed limit in addition to the fixed speed limit for each section of the railway line due to geographical conditions. According to different conditions, the temporary speed limit is divided into two types: natural disasters (such as mudslides, floods, landslides, landslides, etc.), sudden speed limits caused by line failures (such as track, equipment failure, etc.), and Planned speed limits caused by line maintenance, construction, etc.
  • natural disasters such as mudslides, floods, landslides, landslides, etc.
  • sudden speed limits caused by line failures such as track, equipment failure, etc.
  • Planned speed limits caused by line maintenance, construction, etc.
  • CTCS China Train Control System
  • ⁇ CTCS-4 has 5 levels; among them, the CTCS-3 system is a train operation control system based on GSM-R to transmit information and use track circuits to check train occupancy.
  • the CTCS-3 system is oriented to speed-increasing trunk lines, high-speed new lines or special Line (300km/h ⁇ 350km/h), compatible with CTCS-2 system.
  • the temporary speed limit application method of the existing railway system is mainly the combination of the CTCS-3 system and the temporary speed limit, that is, the CTCS-3 system is used to issue temporary speed limit commands.
  • the specific process includes: Temporary Speed Limit Server (TSRS) reception Temporary speed limit commands issued by the Centralized Dispatching System (CTC), and the Temporary Speed Limit Server (TSRS) manages the speed limit of the Radio Block Center (RBC) on the track line corresponding to the speed limit zone start point, the speed limit zone end point and the line number
  • TSRS Temporary Speed Limit Server
  • the corresponding temporary speed limit command is sent to the radio block center (RBC), and the radio block center (RBC) transmits the speed limit information to the on-board equipment via GSM-R.
  • the above-mentioned existing temporary speed limit issuance method has the following problems:
  • the temporary speed limit information is sent separately from the normal signal authorization information. It may happen that only the normal signal authorization information is received but the temporary speed limit information is not received, which will cause driving safety problems;
  • the present invention provides a method for issuing a temporary speed limit for a train based on a track circuit to solve the above-mentioned problems
  • the track circuit-based train temporary speed limit issuing method of the present invention includes the following steps:
  • S1 Use the track circuit to receive the temporary speed limit information in the speed limit zone and the normal signal authorization information in the speed limit zone, and send the temporary speed limit information and the normal signal authorization information to the track circuit information reading device ;
  • the track circuit information reading device receives the temporary speed limit information and the normal signal authorization information, and demodulates the temporary speed limit information and the normal signal authorization information to obtain the demodulated temporary speed limit information and solution
  • the adjusted normal signal authorization information sends the demodulated temporary speed limit information and the demodulated normal signal authorization information to the on-board ATP subsystem.
  • step S1 it further includes using the track circuit to receive the temporary speed limit notice information of the rear section of the speed limit section where it is located, and send the temporary speed limit notice information to the track circuit information reading device;
  • step S2 it further includes that the track circuit information reading device receives the temporary speed limit notice information, and demodulates the temporary speed limit notice information to obtain demodulated temporary speed limit notice information , Sending the demodulated temporary speed limit forecast information to the on-board ATP subsystem.
  • step S1 it also includes step S0: the interlocking subsystem receives the split temporary speed limit command, corresponds the temporary speed limit command to the speed limit zone where it is located, and presses the speed limit zone where it is Archive the blocked zone, obtain the temporary speed limit information in the speed limit zone and the normal signal authorization information in the speed limit zone, and send the temporary speed limit information and the normal signal authorization information to the track circuit;
  • the interlocking subsystem also generates temporary speed limit notice information in the section behind the speed limit section according to the temporary speed limit information in the speed limit section where it is located, and sends the temporary speed limit notice information to the Track circuit.
  • step S0 it also includes step S0-1: the temporary speed limit command generation module generates a temporary speed limit command, splits the temporary speed limit command according to the interlock jurisdiction, and obtains the separated temporary speed limit command. Speed command and sent to the interlocking subsystem.
  • step S2 it further includes step S3: the on-board ATP subsystem receives the demodulated temporary speed limit information, the demodulated normal signal authorization information, and the demodulated temporary speed limit information.
  • the speed forecast information is combined with line data and train information to generate a car control curve, and in the speed limit section, the speed of the train is controlled to decrease to the temporary speed limit according to the car control curve.
  • the temporary speed limit issue system for trains based on track circuits includes:
  • the track circuit receives the temporary speed limit information in the speed limit zone and the normal signal authorization information in the speed limit zone, and sends the temporary speed limit information and the normal signal authorization information to the track circuit information reading device;
  • the track circuit information reading device receives the temporary speed limit information and the normal signal authorization information, and demodulates the temporary speed limit information and the normal signal authorization information to obtain the demodulated temporary speed limit information and the demodulated temporary speed limit information.
  • the normal signal authorization information is sent to the on-board ATP subsystem.
  • the track circuit also receives temporary speed limit notice information of the rear section of the speed limit section where it is located, and sends the temporary speed limit notice information to the track circuit information reading device;
  • the track circuit information reading device receives the temporary speed limit notice information, demodulates the temporary speed limit notice information, obtains the demodulated temporary speed limit notice information, and sends it to the on-board ATP subsystem.
  • the interlocking subsystem receives the split temporary speed limit command, corresponds to the temporary speed limit command in the speed limit zone, and obtains the speed limit zone in which the temporary speed limit command is located.
  • the temporary speed limit information and the normal signal authorization information in the speed limit zone where it is located, and the temporary speed limit information and the normal signal authorization information are sent to the track circuit;
  • the interlocking subsystem also generates temporary speed limit notice information in the rear section of the speed limit section based on the temporary speed limit information in the speed limit section where it is located, and sends the temporary speed limit notice information to the track circuit .
  • the temporary speed limit command generation module generates a temporary speed limit command, splits the temporary speed limit command according to the interlock jurisdiction, and obtains the split temporary speed limit command. Speed command and sent to the corresponding interlocking subsystem.
  • a vehicle-mounted ATP subsystem that receives the demodulated temporary speed limit information, the demodulated normal signal authorization information, and the demodulated temporary speed limit preview information, combined with line data and The train information generates a car control curve, and in the speed limit section, the speed of the train is controlled to decrease to the temporary speed limit according to the car control curve.
  • the present invention provides a method for issuing a temporary speed limit of a train based on a track circuit.
  • the track circuit is used as the transmission medium for the temporary speed limit of a train.
  • the temporary speed limit is issued in real time and does not depend on the wireless network coverage area.
  • the track circuit-based train temporary speed limit issuing system provided by the present invention adopts track circuit information reading equipment as the transmission channel between the track circuit and the on-board ATP subsystem, does not need to add additional equipment, simplifies the system and reduces the cost.
  • Fig. 1 is a schematic flow chart of the method for issuing temporary speed limits for trains based on track circuits of the present invention
  • Fig. 2 is a structural block diagram of the train temporary speed limit issuing system based on track circuit of the present invention
  • FIG. 3 is a block diagram of the structural connection between the interlocking host and the ZPW-2000 track circuit in the embodiment of the present invention
  • Figure 4 is a schematic diagram of a typical application of the temporary speed limit of the present invention.
  • the track circuit-based train temporary speed limit issuing method of the present invention includes the following steps:
  • the dispatcher draws up a temporary speed limit instruction in the integrated dispatch system.
  • the temporary speed limit command generation module generates a temporary speed limit command according to the proposed temporary speed limit instruction.
  • the temporary speed limit command is split according to the interlocking jurisdiction. After the split is obtained The temporary speed limit command is then sent out through the network and sent to the corresponding interlocking subsystem;
  • the above-mentioned temporary speed limit order includes at least the speed limit value, the start point of the speed limit zone, the end point of the speed limit zone, the line number, the dispatch order number and the station number;
  • the interlocking subsystem receives the split temporary speed limit command, corresponds the temporary speed limit command and the temporary speed limit command to the speed limit zone to which it belongs, archives the speed limit zone to which it belongs, and obtains the speed limit zone to which it belongs The temporary speed limit information in the segment and the normal signal authorization information in the speed limit zone to which it belongs, and then the temporary speed limit information and the normal signal authorization information are sent to the track circuit;
  • the interlocking subsystem also generates temporary speed limit notice information in the rear section of the speed limit section based on the obtained temporary speed limit information, and sends the temporary speed limit notice information to the aforementioned track circuit, where the temporary speed limit
  • the sending range of the speed forecast information is comprehensively determined according to the track line speed, the length of the interlocking jurisdiction zone and the current running direction of the zone;
  • the track circuit receives the temporary speed limit information in the speed limit section, the normal signal authorization information in the speed limit section, and the temporary speed limit notice information in the rear section of the speed limit section, and then the temporary speed limit information, The normal signal authorization information and the temporary speed limit notice information are sent to the rail. Specifically, the above information is sent to the rail using FSK (Frequency Shift Keying) processing, and the above information is sent to the track circuit information reading device through the rail, and the train occupancy is completed at the same time Check operation
  • FSK Frequency Shift Keying
  • the track circuit information reading device receives the information sent by the rail (temporary speed limit information, normal signal authorization information and temporary speed limit notice information) to demodulate to obtain the temporary speed limit information, and then demodulate the above information and send it to the on-board ATP Subsystem
  • the on-board ATP subsystem receives the above-mentioned demodulation information, combines the line data and train information to generate a train control curve, and according to the generated train control curve, in the temporary speed limit section, the train is controlled to reduce the train speed below the temporary speed limit requirement, as Preferably, when the train does not reach the temporary speed limit section, the train can be controlled to reduce its running speed to within the temporary speed limit.
  • the above temporary speed limit issuance method uses the track circuit as the transmission medium for the temporary speed limit of the train. Compared with the existing wireless method, the specific advantages are as follows:
  • the temporary speed limit information is sent together with the normal signal authorization information, and there will be no situation in which only the normal signal authorization information is received but the temporary speed limit information is not received, which guarantees driving safety;
  • the display of the ground signal can be changed to remind the driver to pay attention, which further guarantees driving safety;
  • the online trains can get the information of the temporary speed limit notice in time, which further guarantees the driving safety.
  • a track circuit-based train temporary speed limiting issuing system is provided. As shown in Fig. 2, the system specifically includes:
  • Temporary speed limit command generation module receives the temporary speed limit instructions drawn up by the dispatcher in the integrated dispatch system, generates temporary speed limit commands according to the proposed temporary speed limit instructions, and then presses the generated temporary speed limit commands
  • the interlocking jurisdiction is split, and the temporary speed limit command after splitting is obtained, and then sent to the corresponding interlocking subsystem;
  • the above-mentioned temporary speed limit command generation module may adopt a Temporary Speed Limit Server (TSRS), but is not limited to a temporary speed limit server.
  • TSRS Temporary Speed Limit Server
  • Those skilled in the art can use devices that realize the same function or effect according to needs and convenience;
  • the temporary speed limit command can also carry the integrated dispatch system number and dispatcher ID.
  • TSRS uses the integrated dispatch system number and operator ID to verify the validity of the temporary speed limit information, and check the integrated dispatch Whether the system and the dispatcher have control authority to further ensure the safety of the train control speed limit setting.
  • the interlocking subsystem receives the above-mentioned split temporary speed limit command, archives the temporary speed limit command according to the block partition, corresponds to the speed limit zone to which the temporary speed limit command belongs, and obtains the speed limit zone to which it belongs Temporary speed limit information and normal signal authorization information in the speed limit zone to which it belongs;
  • the interlocking subsystem also generates temporary speed limit notice information in the rear section of the speed limit section based on the temporary speed limit information in the speed limit section where it is located, and sends the temporary speed limit notice information to the track circuit ;
  • the above-mentioned interlocking subsystem can use the existing interlocking equipment; or the interlocking host as shown in Figure 3, the interlocking host includes the interlocking host A and the interlocking host B, the interlocking host A and the interlocking The host computer B receives the temporary speed limiting command from the temporary speed limiting server, the interlocking host A is connected to the track circuit communication interface unit host through the CAN bus, and the interlocking host B is connected to the track circuit communication interface unit through the CAN bus.
  • the track circuit communication interface unit host is connected to the track circuit frequency shift cabinet through CAN bus, and the track circuit communication interface unit is connected to the track circuit frequency shift cabinet through CAN bus, interlocking the host A or interlocking the host
  • the B machine sends the above-mentioned temporary speed limit information and the coded information of the temporary speed limit advance information to the track circuit through the above-mentioned connection mode.
  • the track circuit receives the above-mentioned temporary speed limit information, normal signal authorization information, and temporary speed limit notice information, and then sends the temporary speed limit information, normal signal authorization information, and temporary speed limit notice information to the rail, specifically using FSK (shift Frequency keying) processing method to send the above information to the rail, and complete the train occupancy inspection operation;
  • FSK shift Frequency keying
  • the above-mentioned track circuit can be a non-insulated frequency shift track circuit, and the specific model can be a ZPW-2000 track circuit;
  • the ZPW-2000 track circuit receives the above-mentioned temporary speed limit information, normal signal authorization information and temporary speed limit notice information through the ZPW-2000 frequency shift cabinet shown in Figure 3 Information, and then send the code information of the temporary speed limit information, normal signal authorization information and temporary speed limit notice information to the rail;
  • the transmitter equipment based on the track circuit of the ZPW-2000 series can send 18 low-frequency information (information modulated by the FSK method) to the rail, and there is a section track circuit with temporary speed limit for the section and the main line of the station.
  • Send LS-V (V1, V2, V3 can take different speed limit values according to needs) or LS-V (V1, V2, V3)-0 information, and send temporary speed limit notice DS-V( V1, V2, V3) information, and the track circuits of the remaining sectors send corresponding information according to the number of free blocks in the front block.
  • Track circuit information reading equipment receives the above information (temporary speed limit information, normal signal authorization information and temporary speed limit notice information) sent by the rail and demodulates it, and sends the above information to the vehicle after demodulation is completed.
  • the track circuit information reading device may specifically use the track circuit information reader (TCR) in the track circuit to complete the reception, demodulation and transmission of the above information.
  • TCR track circuit information reader
  • the TCR is installed in front of the first wheelset of the locomotive.
  • the track circuit receiving antenna receives the above-mentioned temporary speed limit information and temporary speed limit notice information sent by the rail, and demodulates the above information to obtain demodulation information corresponding to the above temporary speed limit information and the temporary speed limit notice information, TCR sends the demodulated information to the on-board ATP subsystem;
  • TCR track circuit information reader
  • the on-board ATP subsystem receives the above-mentioned demodulation information, and combines the line data and train information in its own system to generate a train control curve. According to the generated train control curve, in the temporary speed limit section, the train is controlled to reduce the train speed to the temporary limit. Below the speed requirement, as a preference, the train can be controlled to reduce its running speed to within the temporary speed limit when the train does not reach the temporary speed limit section; the above-mentioned on-board ATP subsystem can specifically use the existing on-board ATP equipment.
  • the ZPW-2000 track circuit received the temporary speed limit information of 45km/h in the 17G section of the track circuit, and each section of the track circuit sent the on-board ATP subsystem through the TCR.
  • the system generates a vehicle control curve with a speed limit of 45km/h in the 17G section, and controls the train to reduce the speed to 45km/h in front of the 17G section.

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Abstract

一种基于轨道电路的列车临时限速下达方法及系统，方法包括：S1:利用轨道电路接收所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，将临时限速信息和正常信号授权信息发送给轨道电路信息读取设备；S2:轨道电路信息读取设备接收临时限速信息和正常信号授权信息，对临时限速信息和正常信号授权信息进行解调，得到解调后的临时限速信息和解调后的正常信号授权信息，将解调后的临时限速信息和解调后的正常信号授权信息发送给车载ATP子系统。有益效果：实现临时限速的实时下达，不依赖于无线网络覆盖区域以及无线网络通信质量；扩大了对于临时限速命令的受控列车的范围。

Description

基于轨道电路的列车临时限速下达方法及系统
本申请要求在2019年11月04日在中国专利局递交的、申请号为“201911067790.4”、名称为“基于轨道电路的列车临时限速下达方法及系统”的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及列车控制系统，具体涉及基于轨道电路的列车临时限速下达方法及系统。
背景技术
临时限速TSR(Temporary Speed Restriction)的定义为，在铁路线上，各段线路因地理情况等固定的限速以外的，具有实时性的限速。根据划分的条件不同，临时限速具体分为两种：自然灾害(如泥石流、洪水、山体滑坡、塌方落物等)、线路故障(如轨道、设备故障等)引起的突发性限速以及由线路维修、施工等引起的有计划的限速。
中国列车控制系统(China Train Control System)即CTCS系统，是我国参照国际标准，结合我国国情，从需求出发，制定的适合我国铁路发展的列车控制系统，根据功能要求和设备配置划分为CTCS-0～CTCS-4共5个等级；其中，CTCS-3系统是基于GSM-R传输信息并采用轨道电路等方式检查列车占用的列车运行控制系统，CTCS-3系统面向提速干线、高速新线或特殊线路(300km/h～350km/h)，可兼容CTCS-2系统。
现有的铁路系统的临时限速应用方式主要为CTCS-3系统与临时限速的结合，即采用CTCS-3系统进行临时限速命令的下达，具体过程包括：临时限速服务器(TSRS)接收调度集中系统(CTC)下发的临时限速命令，临时限速服务器(TSRS)根据限速区起点、限速区终点以及线路号对应的轨道线路上的无线闭塞中心(RBC)的限速管理范围，进行自动拆分后，向无线闭塞中心(RBC)发送对应的临时限速命令，由无线闭塞中心(RBC)将限速信息通过GSM-R传送给车载设备。
上述现有临时限速的下达方式，具有如下问题：
1)仅适用于处于CTCS-3级工作模式、且装备CTCS-3级车载ATP的动车组的列车，不适用于普通机车；
2)仅适用于GSM-R的无线网络覆盖区域；且对GSM-R的无线网络通信质量要求高；
3)无法实现地面设备向列车单向传输临时限速信息，需要列车回执信息；
4)临时限速信息与正常信号授权信息分开发送，可能出现仅收到正常信号授权信息但未收到临时限速信息的情况，从而造成行车安全问题；
5)临时限速下达的同时，无法有效的通过地面信号机通知司机。
发明内容
为了克服现有技术的缺陷，本发明提供基于轨道电路的列车临时限速下达方法，解决上述问题；
本发明通过如下技术方案实现：
本发明的基于轨道电路的列车临时限速下达方法，包括如下步骤：
S1:利用轨道电路接收所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，将所述临时限速信息和正常信号授权信息发送给轨道电路信息读取设备；
S2:所述轨道电路信息读取设备接收所述临时限速信息和正常信号授权信息，对所述临时限速信息和正常信号授权信息进行解调，得到解调后的临时限速信息和解调后的正常信号授权信息，将所述解调后的临时限速信息和解调后的正常信号授权信息发送给车载ATP子系统。
进一步的，所述步骤S1中，还包括利用轨道电路接收所在限速区段的后方区段的临时限速预告信息，并将所述临时限速预告信息发送给轨道电路信息读取设备；
进一步的，所述步骤S2中，还包括所述轨道电路信息读取设备接收所述临时限速预告信息，对所述临时限速预告信息进行解调，得到解调后的临时限速预告信息，将所述解调后的临时限速预告信息发送给车载ATP子系统。
进一步的，在步骤S1之前，还包括步骤S0：联锁子系统接收拆分后的临时限速命令，将所述临时限速命令对应于所在限速区段内，将所在限速区段按闭塞分区进行归档，得到所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，并将所述临时限速信息和正常信号授权信息发送至所述轨道电路；
联锁子系统还根据所述所在限速区段内的临时限速信息，在所在限速区段的后方区段生成临时限速预告信息，并将所述临时限速预告信息发送至所述轨道电路。
进一步的，在步骤S0之前，还包括步骤S0-1：临时限速命令生成模块生成临时限速命令，将所述临时限速命令按联锁管辖范围进行拆分，得到拆分后的临时限速命令，并发送给所述联锁子系统。
进一步的，在步骤S2之后，还包括步骤S3：所述车载ATP子系统接收所述解调后的临时限速信息、所述解调后的正常信号授权信息和所述解调后的临时限速预告信息，结合线路数据和列车信息生成控车曲线，在限速区段内，根据所述控车曲线控制列车速度降低至临时限速内。
基于轨道电路的列车临时限速下达系统，包括：
轨道电路，接收所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，将所述临时限速信息和正常信号授权信息发送给轨道电路信息读取设备；
轨道电路信息读取设备，接收所述临时限速信息和正常信号授权信息，对所述临时限速信息和正常信号授权信息进行解调，得到解调后的临时限速信息和解调后的正常信号授权信息，并发送至车载ATP子系统。
进一步的，轨道电路还接收所在限速区段的后方区段的临时限速预告信息，并将所述临时限速预告信息发送给轨道电路信息读取设备；
轨道电路信息读取设备接收所述临时限速预告信息，对所述临时限速预告信息进行解调，得到解调后的临时限速预告信息，并发送至车载ATP子系统。
进一步的，还包括，联锁子系统，所述联锁子系统接收拆分后的临时限速命令，将所述临时限速命令对应于所在限速区段内，得到所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，并将所述临时限速信息和正常信号授权信息发送至所述轨道电路；
联锁子系统还根据所在限速区段内的临时限速信息，在所在限速区段的后方区段生成临时限速预告信息，并将所述临时限速预告信息发送至所述轨道电路。
进一步的，还包括，临时限速命令生成模块，所述临时限速命令生成模块生成临时限速命令，将所述临时限速命令按联锁管辖范围进行拆分，得到拆分后的临时限速命令，并发送至对应的所述联锁子系统。
进一步的，还包括，车载ATP子系统，接收所述解调后的临时限速信息、所述解调后的正常信号授权信息和所述解调后的临时限速预告信息，结合线路数据和列车信息生成控车曲线，在限速区段内，根据所述控车曲线控制列车速度降低至临时限速内。
和最接近的现有技术比，本发明的技术方案具备如下有益效果：
本发明提供基于轨道电路的列车临时限速下达方法，采用轨道电路作为列车临时限速下达的传输介质，相较于现有无线方式，实现临时限速的实时下达，不依赖于无线网络覆盖区域以及无线网络通信质量；不仅适用于处于CTCS-3级工作模式、且装备CTCS-3级车载ATP的动车组的列车，同样适用于普通机车，扩大了对于临时限速命令的受控列车的范围；实现地面设备向列车单向传输临时限速信息，无需列车回执信息；临时限速信息与正常信号授权信息一起发送，不会出现仅收到正常信号授权信息但未收到临时限速信息的情况，保障了行车安全；临时限速下达的同时，可同步改变地面信号机显示提 醒司机注意，进一步保障了行车安全；在线运行的列车能够及时得到临时限速预告信息，更进一步保障了行车安全。
本发明提供的基于轨道电路的列车临时限速下达系统，采用轨道电路信息读取设备作为轨道电路和车载ATP子系统之间的传输通道，无需增加额外设备，简化系统且降低成本。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为本发明的基于轨道电路的列车临时限速下达方法的流程示意图；
图2为本发明的基于轨道电路的列车临时限速下达系统的结构框图；
图3为本发明的实施例中联锁主机与ZPW-2000轨道电路之间的结构连接框图；
图4为本发明的临时限速典型应用的示意图。
具体实施方式
下面将结合本发明的实施例，对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
如图1所示，本发明的基于轨道电路的列车临时限速下达方法，包括如下步骤：
调度员在综合调度系统中拟定临时限速指示，临时限速命令生成模块根据拟定的临时限速指示生成临时限速命令，将临时限速命令依据联锁管辖范围进行拆分，得到拆分后的临时限速命令，然后通过网络发送出去，发送给对应的联锁子系统；
上述临时限速命令至少包括限速值、限速区起点、限速区终点、线路号、调度命令号和车站编号；
联锁子系统接收拆分后的临时限速命令，把临时限速命令与临时限速命令下达所属限速区段进行对应，将所属限速区段按闭塞分区进行归档，得到所属限速区段内的临时限速信息和所属限速区段内的正常信号授权信息，然后将临时限速信息和正常信号授权信息发送至轨道电路；
并且，联锁子系统还根据得到的临时限速信息，在所在限速区段的后方区段生成临 时限速预告信息，并将所述临时限速预告信息发送至上述轨道电路，其中临时限速预告信息的发送范围根据轨道线路速度，联锁管辖分区长度以及区间当前所处运行方向等信息综合确定；
轨道电路接收所在限速区段内的临时限速信息、所在限速区段内的正常信号授权信息以及所在限速区段的后方区段的临时限速预告信息，然后将临时限速信息、正常信号授权信息临时限速预告信息发送至钢轨，具体是采用FSK(移频键控)处理方式将上述信息发送至钢轨，通过钢轨将上述信息发送至轨道电路信息读取设备，同时完成列车占用检查操作；
轨道电路信息读取设备接收钢轨发送的信息(临时限速信息，正常信号授权信息和临时限速预告信息)进行解调，得到临时限速信息，然后将上述信息解调完成后发送给车载ATP子系统；
车载ATP子系统接收上述解调信息，结合线路数据和列车信息生成列车控制曲线，根据生成的列车控制曲线，在临时限速区段内，控制列车将列车速度降低至临时限速要求以下，作为优选的，可以在列车未到达临时限速区段的时候，就控制列车将自身行驶速度降低至临时限速内。
上述临时限速下达方法，采用轨道电路作为列车临时限速下达的传输介质，相较于现有无线方式，具体如下优势：
1、实现临时限速的实时下达，不依赖于无线网络覆盖区域以及无线网络通信质量；
2、不仅适用于处于CTCS-3级工作模式、且装备CTCS-3级车载ATP的动车组的列车，同样适用于普通机车，扩大了对于临时限速命令的受控列车的范围；
3、实现地面设备向列车单向传输临时限速信息，无需列车回执信息；
4、临时限速信息与正常信号授权信息一起发送，不会出现仅收到正常信号授权信息但未收到临时限速信息的情况，保障了行车安全；
5、临时限速下达的同时，可同步改变地面信号机显示提醒司机注意，进一步保障了行车安全；
6、在线运行的列车能够及时得到临时限速预告信息，更进一步保障了行车安全。
为了实现上述临时限速下达方法，对应于上述基于轨道电路的列车临时限速下达方法，提供基于轨道电路的列车临时限速下达系统，如图2所示，系统具体包括：
临时限速命令生成模块，临时限速命令生成模块接收调度员在综合调度系统中拟定临时限速指示，根据拟定的临时限速指示，生成临时限速命令，然后把生成的临时限速 命令按联锁管辖范围进行拆分，得到拆分后的临时限速命令，然后发送至对应的联锁子系统；
上述临时限速命令生成模块可以采用临时限速服务器(TSRS)，但并不限于临时限速服务器，本领域技术人员可以根据需要和便利，采用实现相同功能或作用的设备；
采用临时限速服务器(TSRS)时，临时限速命令还可以携带综合调度系统编号和调度员ID，TSRS应用综合调度系统编号和操作者ID对临时限速信息进行合法性验证，检查该综合调度系统和该调度员是否具有控制权限，进一步保障列控限速设置的安全性。
联锁子系统，联锁子系统接收上述拆分后的临时限速命令，将临时限速命令按闭塞分区进行归档，对应于临时限速命令所属限速区段内，得到所属限速区段内的临时限速信息和所属限速区段内的正常信号授权信息；
联锁子系统还根据所在限速区段内的临时限速信息，在所在限速区段的后方区段生成临时限速预告信息，并将所述临时限速预告信息发送至所述轨道电路；
上述联锁子系统可以采用现有联锁设备；也可以采用如图3所示的联锁主机，联锁主机包括联锁主机A机和联锁主机B机，联锁主机A机和联锁主机B机分别接收来自临时限速服务器的临时限速命令，联锁主机A机通过CAN总线形式与轨道电路通信接口单元主机相连接，联锁主机B机通过CAN总线形式与轨道电路通信接口单元备相连接，轨道电路通信接口单元主机通过CAN总线方式和轨道电路移频柜连接，轨道电路通信接口单元备机通过CAN总线方式和轨道电路移频柜连接，联锁主机A机或联锁主机B机通过上述连接方式向轨道电路发送上述临时限速信息和临时限速预告信息的编码信息。
轨道电路，轨道电路接收上述临时限速信息、正常信号授权信息以及临时限速预告信息，然后将临时限速信息、正常信号授权信息以及临时限速预告信息发送至钢轨，具体是采用FSK(移频键控)处理方式将上述信息发送至钢轨，同时完成列车占用检查操作；
上述轨道电路可以采用无绝缘移频轨道电路，具体型号可采用ZPW-2000型轨道电路；
具体的，针对上述联锁主机发送的信息，ZPW-2000型轨道电路通过图3中所示的ZPW-2000移频柜接收上述临时限速信息、正常信号授权信息和临时限速预告信息的编码信息，然后将临时限速信息、正常信号授权信息和临时限速预告信息的编码信息发送至钢轨；
如下表所示，基于ZPW-2000系列的轨道电路的发送器设备可向钢轨发送18个低频 信息(采用FSK方法进行调制的信息)，对于区间及站内正线有临时限速的区段轨道电路发送LS-V(V1、V2、V3可根据需要取不同限速值)或LS-V(V1、V2、V3)-0信息，其列车运行后方区段发送临时限速预告信息DS-V(V1、V2、V3)信息，其余区段轨道电路根据前方闭塞分区空闲个数发送对应信息。
表1
Figure PCTCN2020121772-appb-000001
注：表中码序名称仅为示意，可根据需要修改为其他名称。
轨道电路信息读取设备，轨道电路信息读取设备接收钢轨发送的上述信息(临时限速信息，正常信号授权信息和临时限速预告信息)后进行解调，上述信息解调完成后发送至车载ATP子系统；
上述轨道电路信息读取设备，具体可以采用轨道电路内的轨道电路信息读取器(TCR)完成对上述信息的接收，解调和发送，具体为，TCR通过设置于机车第一轮对前方的轨道电路接收天线(接收线圈)接收钢轨发送的上述临时限速信息和临时限速预告信息，并对上述信息进行解调，得到上述临时限速信息和临时限速预告信息对应的解调信息，TCR将解调信息发送至车载ATP子系统；
采用轨道电路信息读取器(TCR)作为轨道电路和车载ATP子系统之间的传输通道，无需增加额外设备，降低系统构成的复杂度，并且也降低了系统运行成本。
车载ATP子系统，接收上述解调信息，结合自身系统内的线路数据和列车信息生成列车控制曲线，根据生成的列车控制曲线，在临时限速区段内，控制列车将列车速度降低至临时限速要求以下，作为优选的，可以在列车未到达临时限速区段的时候，就控制列车将自身行驶速度降低至临时限制速度以内；上述车载ATP子系统具体可以采用现有车载ATP设备。
如图4所示，并结合上述表1信息，ZPW-2000轨道电路接收到在轨道电路17G区段临时限速45km/h的限速信息，轨道电路的各区段分别通过TCR向车载ATP子系统发送如下信息：17G区段发送临时限速LS-V1信息，15G区段发送DS-V1信息，13G区段发送F1信息，11G区段发送F2信息，09G区段发送F0信息，然后车载ATP子系统生成在在17G区段限速45km/h的控车曲线，控制列车在17G区段前方将速度降低至45km/h。
以上实施例仅用以说明本发明的技术方案而非对其限制，尽管参照上述实施例对本发明进行了详细的说明，所属领域的普通技术人员依然可以对本发明的具体实施方式进行修改或者等同替换，这些未脱离本发明精神和范围的任何修改或者等同替换，均在申请待批的本发明的权利要求保护范围之内。

Claims (10)

  1. 基于轨道电路的列车临时限速下达方法，其特征在于，包括如下步骤：
    S1:利用轨道电路接收所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，将所述临时限速信息和正常信号授权信息发送给轨道电路信息读取设备；
    S2:所述轨道电路信息读取设备接收所述临时限速信息和正常信号授权信息，对所述临时限速信息和正常信号授权信息进行解调，得到解调后的临时限速信息和解调后的正常信号授权信息，将所述解调后的临时限速信息和解调后的正常信号授权信息发送给车载ATP子系统。
  2. 根据权利要求1所述的基于轨道电路的列车临时限速下达方法，其特征在于，所述步骤S1中，还包括利用轨道电路接收所在限速区段的后方区段的临时限速预告信息，并将所述临时限速预告信息发送给轨道电路信息读取设备；
    所述步骤S2中，还包括所述轨道电路信息读取设备接收所述临时限速预告信息，对所述临时限速预告信息进行解调，得到解调后的临时限速预告信息，将所述解调后的临时限速预告信息发送给车载ATP子系统。
  3. 根据权利要求2所述的基于轨道电路的列车临时限速下达方法，其特征在于，在步骤S1之前，还包括步骤S0：联锁子系统接收拆分后的临时限速命令，将所述临时限速命令对应于所在限速区段内，将所在限速区段按闭塞分区进行归档，得到所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，并将所述临时限速信息和正常信号授权信息发送至所述轨道电路；
    联锁子系统还根据所述所在限速区段内的临时限速信息，在所在限速区段的后方区段生成临时限速预告信息，并将所述临时限速预告信息发送至所述轨道电路。
  4. 根据权利要求3所述的基于轨道电路的列车临时限速下达方法，其特征在于，在步骤S0之前，还包括步骤S0-1：临时限速命令生成模块生成临时限速命令，将所述临时限速命令按联锁管辖范围进行拆分，得到拆分后的临时限速命令，并发送给所述联锁子系统。
  5. 根据权利要求4所述的基于轨道电路的列车临时限速下达方法，其特征在于，在步骤S2之后，还包括步骤S3：所述车载ATP子系统接收所述解调后的临时限速信息、所述解调后的正常信号授权信息和所述解调后的临时限速预告信息，结合线路数据和列车信息生成控车曲线，在限速区段内，根据所述控车曲线控制列车速度降低至临时限速内。
  6. 基于轨道电路的列车临时限速下达系统，其特征在于，包括：
    轨道电路，接收所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，将所述临时限速信息和正常信号授权信息发送给轨道电路信息读取设备；
    轨道电路信息读取设备，接收所述临时限速信息和正常信号授权信息，对所述临时限速信息和正常信号授权信息进行解调，得到解调后的临时限速信息和解调后的正常信号授权信息，并发送至车载ATP子系统。
  7. 根据权利要求6所述的基于轨道电路的列车临时限速下达系统，其特征在于，
    轨道电路还接收所在限速区段的后方区段的临时限速预告信息，并将所述临时限速预告信息发送给轨道电路信息读取设备；
    轨道电路信息读取设备接收所述临时限速预告信息，对所述临时限速预告信息进行解调，得到解调后的临时限速预告信息，并发送至车载ATP子系统。
  8. 根据权利要求7所述的基于轨道电路的列车临时限速下达系统，其特征在于，还包括，联锁子系统，所述联锁子系统接收拆分后的临时限速命令，将所述临时限速命令对应于所在限速区段内，得到所在限速区段内的临时限速信息和所在限速区段内的正常信号授权信息，并将所述临时限速信息和正常信号授权信息发送至所述轨道电路；
    联锁子系统还根据所在限速区段内的临时限速信息，在所在限速区段的后方区段生成临时限速预告信息，并将所述临时限速预告信息发送至所述轨道电路。
  9. 根据权利要求8所述的基于轨道电路的列车临时限速下达系统，其特征在于，还包括，临时限速命令生成模块，所述临时限速命令生成模块生成临时限速命令，将所述临时限速命令按联锁管辖范围进行拆分，得到拆分后的临时限速命令，并发送至对应的所述联锁子系统。
  10. 根据权利要求9所述的基于轨道电路的列车临时限速下达系统，其特征在于，还包括，车载ATP子系统，接收所述解调后的临时限速信息、所述解调后的正常信号授权信息和所述解调后的临时限速预告信息，结合线路数据和列车信息生成控车曲线，在限速区段内，根据所述控车曲线控制列车速度降低至临时限速内。
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