CN116639164A - Train temporary speed limiting control method suitable for common speed railway - Google Patents
Train temporary speed limiting control method suitable for common speed railway Download PDFInfo
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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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/10—Operations, e.g. scheduling or time tables
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Abstract
The invention relates to a temporary speed limit control method of a train suitable for a common speed railway, which comprises the setting of a temporary speed limit control range and the temporary speed limit control operation, wherein a dispatching center dispatcher plans a temporary speed limit dispatching command through a CTC/TDCS dispatching desk, and the method comprises the following steps: speed limit area, speed limit time and speed limit value; after the temporary speed limiting dispatching command is formulated, the temporary speed limiting dispatching command is converted into a formatted non-text communication data frame, the formatted non-text communication data frame is sent to CTC/TDCS station machine equipment by CTC/TDCS center equipment, and then the formatted temporary speed limiting dispatching command is sent to vehicle-mounted LKJ equipment by station train control equipment. The temporary speed limiting control scheme provided by the invention can meet the requirements of no need of manual intervention, high automation degree and strong safety performance in the temporary speed limiting control process, and has the advantages of small equipment quantity, simple control function, low engineering cost and convenience in construction and maintenance.
Description
Technical Field
The invention relates to the field of signal control of common speed railways, in particular to temporary speed limiting control of a common speed railway train.
Background
The temporary speed limiting control is an important guarantee of train running safety, and a mode of loading a temporary speed limiting operation revealing scheduling command into a train running monitoring recording device (LKJ) through an IC card is mainly adopted by a CTCS-0 system (C0 system for short) aiming at the temporary speed limiting control of a common speed railway line: the dispatching station is responsible for issuing a temporary speed limit dispatching command to the machine service and the working department, the machine service department compiles LKJ temporary speed limit operation revealing data to reach the driver shift room, the driver shift room writes the LKJ temporary speed limit operation revealing data of the appointed operation section into the IC card, the driver carries the IC card to get on the vehicle, the IC card data is imported into LKJ equipment, and finally the LKJ equipment carries out temporary speed limit monitoring. The temporary speed limiting operation of the IC card reveals that the scheduling command is transmitted layer by layer, so that the defects of long management flow, large manual participation and the like exist, and the temporary speed limiting control has larger potential safety hazards such as errors, omission, delay and the like.
The mature application experience of executing the temporary speed limit control scheme based on the IC card storage mode is taken as a reference, and further research is carried out on the temporary speed limit control scheme which is more suitable for the operation requirement of the common speed railway and is more reliable and safer. Other temporary speed limiting control schemes of the China Train Control System (CTCS) are analyzed, certain defects exist, and the large-scale application of the common speed railway is difficult to meet, and the specific conditions are as follows:
(1) The temporary speed limiting control of the existing line CTCS-2 level speed increasing section. The temporary speed limit dispatching command is managed in a centralized manner by a dispatching center, a central dispatcher issues the temporary speed limit dispatching command to a corresponding policing station of the temporary speed limit through a dispatching centralized system (CTC) or a Train Dispatching Command System (TDCS) according to the area where the temporary speed limit is located, a station attendant checks and signs the temporary speed limit dispatching command, the temporary speed limit dispatching command is sent to a station Train Control Center (TCC) in a machine selecting manner, a corresponding temporary speed limit transponder message is selected by the TCC, and the temporary speed limit command is transmitted to train control vehicle-mounted equipment through a ground electronic unit (LEU) and a transponder to execute temporary speed limit monitoring. The scheme solves the problem that the temporary speed limiting operation reveals manual layer-by-layer transmission of the scheduling command in the temporary speed limiting scheme of the IC card, but still needs partial manual intervention, such as: a central dispatcher is required to decompose the temporary speed limiting dispatching command to the corresponding station according to the temporary speed limiting specific area; the operator at the station is required to give a temporary speed limiting command to the TCC equipment and execute the temporary speed limiting command according to the temporary speed limiting plan starting time. Especially, the machine selection needs to be controlled by a station operator, the temporary speed limit is controlled more frequently when the opportunity is given earlier, the opportunity is later, and the unsafe condition of control omission can occur. In addition, because the temporary speed limiting control range of the TCC is limited, each station is required to be provided with the TCC, the equipment quantity is large, the system is complex, and the construction and maintenance cost is high.
(2) The method comprises the steps that temporary speed limiting control is carried out on a high-speed railway CTCS-2 and CTCS-3 level train control systems (C2 system and C3 system for short), temporary speed limiting server (TSRS) equipment is correspondingly arranged in a dispatching center according to a driving dispatching desk, a central dispatcher sends temporary speed limiting commands to the TSRS in advance, the TSRS carries out verification and storage on the temporary speed limiting commands, before the temporary speed limiting commands are scheduled to start execution time, the TSRS prompts the central dispatcher to verify and send temporary speed limiting execution commands, after the execution commands are received, the TSRS sends the temporary speed limiting commands to corresponding station TCCs, the CTCS-3 level section also needs to send the temporary speed limiting commands to corresponding regional wireless block centers (RBC), and the RBC sends the temporary speed limiting commands to train control vehicle-mounted equipment through LEU and a response device through a GSM-R wireless network, and therefore temporary speed limiting control of a train is achieved. The scheme solves the problem of manual intervention in the temporary speed limiting control process, and after a central dispatcher issues a dispatching command from a source, the temporary speed limiting control process is completed by the train control safety equipment, the control interface is clear, and the control process is safe. However, in the scheme, the TSRS can only be responsible for the functions of centralized management, storage, verification and the like of the temporary speed limit command, a transponder message still needs to be generated by means of real-time framing of the station TCC, RBC is needed to be combined with driving permission information to generate a wireless message so as to further transmit the temporary speed limit command to the vehicle-mounted equipment, and a special signal security data network also needs to be built for realizing connection of the center TSRS and the station TCC. The scheme has the problems of large number of equipment and interfaces, high engineering construction cost, high operation and maintenance difficulty and the like, and is not suitable for being implemented on a common speed railway. Meanwhile, under the limitation of the temporary speed limiting jurisdiction of the TCC, the TSRS of the CTCS-3 level line is also required to be simultaneously connected with the TCC, RBC and other factors, and the scheme is required to solve the problems of multiple verification, multiple splitting and the like of the temporary speed limiting command, so that the system has complex functions.
In summary, the invention provides a new temporary speed limiting control scheme aiming at the temporary speed limiting control requirement of the common speed railway and the characteristic that the vehicle-mounted equipment is mainly LKJ, thereby not only meeting the requirements of high automation degree and strong safety performance of the temporary speed limiting control process without manual intervention, but also having the advantages of less equipment quantity, simple control function, low engineering cost and convenient construction and maintenance, and having important practical significance and market value.
Disclosure of Invention
The invention aims to provide a train temporary speed limiting control method suitable for a common speed railway, realizes automation and informatization of a temporary speed limiting control process, meets the functional safety requirements of railway signals, and has innovation, economy and applicability.
The invention provides a temporary speed limit control method of a train suitable for a common speed railway, which is characterized by comprising temporary speed limit control range setting and temporary speed limit control operation, wherein the method inherits a temporary speed limit control mode of a vehicle-mounted LKJ device based on operation revealing scheduling command, a scheduling center scheduler draws in a temporary speed limit scheduling command through a CTC/TDCS scheduling table, and the temporary speed limit scheduling command mainly comprises the following contents: speed limit area, speed limit time and speed limit value;
the speed limit area adopts four element descriptions of a working line number, a line uplink and downlink, a starting kilometer sign and a terminating kilometer sign, namely, the temporary speed limit area of the line is marked by an absolute kilometer sign;
the speed limit time comprises a start time and an end time, and is expressed in a format of year/month/day/hour/minute, namely the absolute time is used for marking the speed limit time;
the speed limiting value is divided into passenger car speed limiting and truck speed limiting;
after the temporary speed limit dispatching command is formulated, the temporary speed limit dispatching command is converted into a formatted non-text communication data frame, the formatted non-text communication data frame is sent to CTC/TDCS station machine equipment by CTC/TDCS central equipment, the formatted temporary speed limit dispatching command is sent to vehicle-mounted LKJ equipment by station train control equipment,
and the vehicle-mounted LKJ device executes temporary speed limit monitoring according to the speed limit area, the speed limit time and the speed limit value determined by the temporary speed limit scheduling command.
The temporary speed limiting control scheme provided by the invention can meet the requirements of no need of manual intervention, high automation degree and strong safety performance in the temporary speed limiting control process, and has the advantages of small equipment quantity, simple control function, low engineering cost and convenience in construction and maintenance.
Drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings that are required for the embodiments will be briefly described below, and it will be apparent that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained from these drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a TSRC-based temporary speed limit control device connection;
FIG. 2 is a schematic diagram of a line TSRC device setup and temporary speed limit control range;
fig. 3 is a schematic diagram of an operation flow of a train control temporary speed limit scheduling command.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without making any inventive effort are within the scope of the present invention.
The existing temporary speed limiting control method for the common speed railway based on the IC card storage mode has the defects of low automation degree, complex management flow and the like, the existing temporary speed limiting control method for the C2-level speed increasing section of the common speed railway has the defects of high equipment complexity and cost, manual intervention required for part of operation and the like, the temporary speed limiting control scheme for the C2 and C3 systems of the high-speed railway has the defects of high equipment complexity and cost, complex system function and the like, and the existing temporary speed limiting control method for the C2-level speed increasing section of the common speed railway is not suitable for engineering transformation implementation, application and maintenance of the existing line of the common speed railway.
The invention provides a temporary speed limit control method suitable for a common speed railway, which inherits a temporary speed limit control mode of a vehicle-mounted LKJ device based on operation disclosure scheduling commands, carries out temporary speed limit setting and cancellation by taking a scheduling table as a unit, and uses a central scheduler to draw and issue temporary speed limit scheduling commands through the scheduling table, wherein the temporary speed limit scheduling commands adopt temporary speed limit scheduling command designs of absolute kilometers and absolute time, are transmitted to a station TSRC through a CTC/TDCS station machine, and are transmitted to the vehicle-mounted LKJ device through a transponder transmission system (LEU, transponder and BTM) by the TSRC to complete temporary speed limit monitoring, wherein the TSRC is arranged at an initiating station and a boundary related station in the traffic command range of the scheduling table.
The invention provides a temporary speed limiting control method of a train, which is suitable for a common speed railway, and is realized by adopting a temporary speed limiting control system shown in figure 1. The system mainly comprises a central device: CTC/TDCS scheduler; station equipment: CTC/TDCS station, TSRC, enhanced LEU, active transponder; and (3) an on-board device: enhanced LKJ, BTM (including antenna), etc.
The invention relates to a temporary speed limit control method of a train suitable for a common speed railway, which inherits a temporary speed limit control mode of a vehicle-mounted LKJ device for revealing a dispatching command based on operation, wherein a dispatching center dispatcher composes the temporary speed limit dispatching command through a CTC/TDCS dispatching desk, and the main content of the command comprises: speed limit area, speed limit time and speed limit value. The speed limiting area adopts four element descriptions of a working line number, a line uplink and downlink, a starting kilometer sign and a terminating kilometer sign, namely, the temporary speed limiting area of the line is marked by an absolute kilometer sign, which is different from the temporary speed limiting area marked by a C2 and C3 system in a mode of using a transponder as a reference point and using a relative distance and a speed limiting length; the speed limit time comprises a start time and an end time, and is expressed in a format of year/month/day/hour/minute, namely the absolute time is used for marking the speed limit time; the speed limiting value is divided into passenger car speed limiting and truck speed limiting, and is aimed at the vehicle type, and the unit is kilometers per hour. After the temporary speed limit dispatching command is formulated, the temporary speed limit dispatching command is converted into a formatted non-text communication data frame, the formatted non-text communication data frame is sent to CTC/TDCS station machine equipment by CTC/TDCS center equipment, the formatted temporary speed limit command is sent to vehicle-mounted LKJ equipment by station train control equipment, and the LKJ equipment executes temporary speed limit control according to a speed limit area, speed limit time and a speed limit value determined by the temporary speed limit command. The temporary speed limit command described by absolute kilometer post, absolute time and formatting is adopted, so that the limit of the C2 and C3 system TCC equipment to the temporary speed limit jurisdiction range is broken through, and the number of the train control equipment of the station can be greatly reduced. In addition, the content and format of the temporary speed limit command received by the vehicle-mounted LKJ device are compatible with the existing IC card operation revealing scheduling command, and the condition that the LKJ device reliably executes the temporary speed limit monitoring function can be met.
Furthermore, the temporary speed limiting dispatching command is automatically transmitted based on equipment, so that dispatching command and safety control integration are realized. The method comprises the steps of planning, issuing, executing, canceling and the like of a temporary speed limiting dispatching command by taking a dispatching desk as a unit, wherein the temporary speed limiting control range is consistent with the traffic command jurisdiction range of the corresponding dispatching desk. Firstly, a temporary speed limit controller (TSRC) is arranged at a station with an originating operation and a boundary station of a dispatching jurisdiction, the TSRC of the station is directly interfaced with CTC/TDCS station equipment, a temporary speed limit dispatching command sent by a central dispatcher is received, a successful receiving command is fed back, and the temporary speed limit dispatching flow is confirmed by the central dispatcher, so that the safety of the temporary speed limit issuing flow is ensured. The TSRC then generates a temporary speed limit disclosure transponder message according to the temporary speed limit scheduling command, sends the temporary speed limit disclosure transponder message to a trackside transponder installed at a station entrance/exit via LEU equipment, receives the temporary speed limit disclosure message through a vehicle-mounted transponder receiving unit (BTM) when a train passes through the corresponding transponder, and sends the temporary speed limit disclosure message to LKJ equipment to implement temporary speed limit control. In addition, the TSRC of the boundary station of the adjacent dispatching desk jurisdiction exchanges related temporary speed limiting information through a communication interface, so that before a train enters the temporary speed limiting jurisdiction station of the adjacent dispatching desk, if the train meets an approaching temporary speed limiting area, the speed reduction can be implemented in advance, and the control safety of the temporary speed limiting is ensured. The central equipment CTC/TDCS dispatching desk displays related parameters of a temporary speed-limiting dispatching command to be drawn in a graphical interface and window mode, the dispatching command is compatible with the related content of the dispatching command disclosed by the temporary speed-limiting operation of the C0 system, after a dispatcher inputs the related command parameters and confirms the related command parameters, the CTC/TDCS dispatching desk converts the drawn temporary speed-limiting dispatching command into a unified formatted non-text communication data frame dispatching command and sends the unified formatted non-text communication data frame dispatching command to the station CTC/TDCS station machine equipment, and the content and format meet the requirement of the enhanced LKJ for executing the temporary speed-limiting monitoring function.
The CTC/TDCS station is directly interfaced with the TSRC, and the CTC/TDCS station directly transmits the temporary speed limiting scheduling command information received from the central CTC/TDCS scheduling station to the TSRC.
The TSRC is directly interfaced with the enhanced LEU, receives a temporary speed limit scheduling command sent by the CTC/TDCS station, automatically codes and generates a temporary speed limit revealing message according to the message coding specification requirement of the transponder, and sends the revealing message to the enhanced LEU in real time, wherein the content and the format of the revealing message meet the requirement of the vehicle-mounted enhanced LKJ equipment on executing a temporary speed limit monitoring function.
The enhanced LEU, the active transponder and the BTM (including an antenna) form a transponder transmission system for ground vehicle communication, and the temporary speed limit revealing message of the received TSRC is transmitted and decoded and then sent to the enhanced LKJ.
The enhanced LEU is directly connected with the TSRC on the basis of the existing LEU equipment, and transmits the received temporary speed limiting revealing message to an active transponder at an entrance/exit, and the enhanced LEU adopts a transparent LEU.
Alternatively, the enhanced LEU device functionality may be integrated into the TSRC, i.e., the TSRC interfaces directly with the active transponder, instead of implementing the functionality of sending messages to the active transponder through the enhanced LEU, the enhanced LEU device is not separately provided on the ground.
Optionally, the TSRC and station interlocking equipment interface can be used for further expanding the TSRC function, so that the TSRC function can simultaneously send a stock track number transponder message, and the integration level of station equipment is improved.
The enhanced LKJ device is a core of the vehicle-mounted device, keeps the format and the content of temporary speed-limiting operation revealing information unchanged based on line basic data stored in a vehicle-mounted centralized manner, receives and analyzes a temporary speed-limiting revealing message sent by a station transponder from a BTM (base station management) on the basis of the existing LKJ device, wherein the temporary speed-limiting content and the format are compatible with an existing IC (integrated circuit) card operation revealing scheduling command, and the enhanced LKJ performs train temporary speed-limiting monitoring according to the temporary speed-limiting information in the message without using an IC card to acquire the temporary speed-limiting operation revealing information.
The TSRC, enhanced LEU, active transponder, enhanced LKJ, BTM (including antenna) and other devices all meet the railway signal product safety integrity level 4 (SIL 4) requirements.
The temporary speed limit dispatching command content is compatible with the content and format of a temporary speed limit operation revealing dispatching command stored by a C0 system IC card, meets the requirement of the LKJ equipment for executing a temporary speed limit monitoring function, and at least comprises the following contents: speed limit command number, jurisdiction starting kilometer post, jurisdiction ending kilometer post, speed limit type (infinite speed/temporary speed limit/lateral line speed limit), line number (up/down/up/down), speed limit time period (day and night/daily), speed limit starting time, speed limit ending time, speed limit starting kilometer post, speed limit ending kilometer post, speed limit station (effective in lateral line speed limit), speed limit strand number (effective in lateral line speed limit), passenger car speed limit value, and truck speed limit value, wherein the passenger car/truck speed limit value is set according to the actual speed limit value, and resolution is 1km/h.
The temporary speed limit disclosure message comprises an infinite speed disclosure message and a limited speed limit disclosure message. When no temporary speed limit exists in the TSRC temporary speed limit control range, an infinite speed revealing message is sent, and the message user information package content mainly comprises a speed limit command number, a line number, a speed limit type, a jurisdiction starting kilometer post, a jurisdiction ending kilometer post and the like, wherein the speed limit type is no speed limit; when temporary speed limit exists in the temporary speed limit control range, a temporary speed limit revealing message is sent, the content of the message user information packet mainly comprises a speed limit command number, a line number, a speed limit type, a jurisdiction starting kilometer sign, a jurisdiction ending kilometer sign, a row category, a speed limit time period, a starting time, a stopping time, a speed limit starting kilometer sign, a speed limit ending kilometer sign, a speed limit station, a speed limit strand number, a passenger car speed limit value, a truck speed limit value and the like, and if a plurality of temporary speed limit sections exist in the TSRC control speed limit range, a plurality of variables from the speed limit time period to the truck speed limit value in the message user information packet need to be designed in an iterative mode according to the speed limit conditions of the actual speed limit sections so as to describe the temporary speed limit of the line in different sections in the jurisdiction.
The invention provides a temporary speed limit control method of a train, which is suitable for a common speed railway and mainly comprises the steps of setting a temporary speed limit control range and temporary speed limit control operation (planning, issuing, executing, cancelling and the like of a temporary speed limit dispatching command).
The temporary speed limit control range is set by taking the traffic command jurisdiction range of the corresponding dispatching desk as a boundary for management, and the temporary speed limit revealing message is sent by a station inbound/outbound trackside transponder provided with a TSRC.
And setting TSRC at the station of the initial operation in the jurisdiction of the corresponding dispatching desk, and transmitting a temporary speed limit revealing message in the dispatching area to the initial train. The temporary speed limit control range of the initiating station TSRC is the traffic command jurisdiction boundary to the corresponding dispatching desk, as shown in fig. 2, the initiating station Am station is provided with the TSRC in the dispatching A-desk jurisdiction, and the temporary speed limit control range is consistent with the dispatching A-desk jurisdiction (command draft range) to the dispatching desk boundary.
Setting a TSRC at a boundary station of a dispatching jurisdiction, and transmitting a temporary speed limit message in the dispatching jurisdiction to a train entering the dispatching jurisdiction; and the temporary speed limiting revealing message in a certain area in front of the adjacent dispatching desk is sent to the train which exits from the jurisdiction area of the dispatching desk. The TSRC temporary speed limit control range of the boundary station covers the traffic command jurisdiction boundary of the dispatching desk, extends a station and a zone to the adjacent dispatching desk to the station incoming signal machine in front of the boundary station of the adjacent dispatching desk, and as shown in figure 2, TSRC is arranged at A1 station of the boundary station A1 in the jurisdiction of the dispatching desk and a B1 station in the jurisdiction of the dispatching desk, the TSRC temporary speed limit control range of the A1 station is downwards (or upwards backwards) arranged at the station incoming signal machine of the B2 station, the temporary speed limit control range of the B1 station is downwards (or upwards forwards and is not shown in figure 2) arranged at the traffic command jurisdiction boundary of the dispatching desk A, and the TSRC temporary speed limit control range of the B1 station is downwards (or upwards backwards and is not shown in figure 2) arranged at the traffic command jurisdiction boundary of the dispatching desk B.
The TSRC setting of the station and the design of the temporary speed limit control range enable the station of the train at the boundary of the starting station and the traffic command jurisdiction to obtain all temporary speed limit information of the dispatching desk jurisdiction area, the TSRC is not required to be set according to the station, and the number of TSRC equipment is greatly reduced. The TSRC of the boundary station of the adjacent dispatching desk jurisdiction is communicated, temporary speed limit information in a certain range of each jurisdiction is interacted, the condition that before a train enters the station of the adjacent dispatching desk jurisdiction, if a temporary speed limit area is met, the speed is reduced in advance, the control safety of the temporary speed limit is ensured, meanwhile, the fact that the jurisdiction of the dispatching desk is consistent with the range of a temporary speed limit command formulated by a dispatcher is realized, and the temporary speed limit dispatching command is transparent to the dispatcher.
Besides the starting station and the dispatching administration boundary station, other stations do not need to be provided with TSRC.
Optionally, a plurality of temporary speed limits exist in a jurisdiction range of a dispatching desk, in order to avoid the TSRC from sending temporary speed limit information irrelevant to the TSRC to the train, the utilization rate of the transponder message is improved, and the TSRC can select to send the temporary speed limit disclosure message only from the transponder to the front temporary speed limit control range according to the line interval and the direction corresponding to the outbound transponder.
Optionally, if a plurality of temporary speed limit disclosure messages exist in the control range from the outbound transponder to the front temporary speed limit, and the data transmission capacity of one transponder is exceeded, the processing capacity of the TSRC for temporary speed limit at a plurality of places in the same driving direction can be improved by increasing the number of active transponders in the outbound transponder group.
The temporary speed limit control operation process comprises the processes of scheduling command planning, issuing, executing and canceling, as shown in fig. 3.
A dispatching center dispatcher draws up a temporary speed limit dispatching command, inputs control parameters related to the temporary speed limit dispatching command through a dispatching desk terminal, confirms the correctness of the control parameters in the drawing up process, and sends the control parameters to CTC/TDCS station machines of all TSRC stations in a dispatching area of the dispatching desk after confirmation, and the CTC/TDCS station machines send the temporary speed limit dispatching command to a connected TSRC after receiving the temporary speed limit dispatching command and feed back a dispatching command receiving result to the dispatching desk; after the TSRC successfully receives the scheduling command, the scheduling command is automatically coded in real time according to the transponder coding specification requirement, a transponder temporary speed limiting revealing message is generated and sent to the enhanced LEU, and a scheduling command receiving result is fed back to the CTC/TDCS station; the enhanced LEU directly controls the received temporary speed limit disclosure message to be sent through a C interface to control a station entrance/exit active transponder, the train receives the temporary speed limit disclosure message through a BTM (including an antenna) when crossing the transponder, decodes the user message, sends the temporary speed limit disclosure message according to an enhanced LKJ request, analyzes and stores temporary speed limit information after receiving the disclosure message, and executes temporary speed limit monitoring according to a speed limit area, speed limit time, speed limit value and the like in the speed limit information.
The temporary speed limit canceling dispatching order is formulated by a dispatching center dispatcher, control parameters are input through a dispatching center corresponding dispatching desk, an operation flow is issued and executed with the temporary speed limit dispatching order, as shown in fig. 3, in the temporary speed limit dispatching order, the canceling order is consistent with the position parameter of a temporary speed limit setting order to be canceled, the speed limit value is the highest allowable operation speed of a line, the planned starting time of the temporary speed limit canceling dispatching order is fixed in an immediate issuing mode, the planned ending time is fixed in a permanent effective mode, after receiving the canceling order, the temporary speed limit revealing message is updated, and the updated temporary speed limit revealing message is sent through an enhanced LEU and an responder. If the temporary speed limit is cancelled, and no temporary speed limit exists in the temporary speed limit control range of the corresponding transponder, the TSRC can send an infinite speed revealing message to the transponder.
In the temporary speed limit control operation process, the TSRC needs to return the temporary speed limit execution result to the dispatching center dispatching desk through the CTC/TDCS station machine, and the dispatching desk displays the return results of all the TSRC temporary speed limit execution in the jurisdiction. The dispatcher confirms that the temporary speed limit dispatching command is successfully received and executed by all TSRCs through the receipt result, and the process ensures the safety of the transmission flow of the temporary speed limit dispatching command. If the dispatcher does not receive the receipt of all TSRC temporary speed limiting successful receipt and execution within the specified time or the TSRC of any vehicle station fails to execute, the CTC/TDCS dispatching center equipment gives an alarm and the dispatcher processes according to the equipment failure emergency plan.
The equipment systems and software and hardware designs of a station TSRC, an enhanced LEU, an active transponder, an enhanced LKJ, a BTM (including an antenna) and the like all meet SIL4 requirements, and the temporary speed limit control process is ensured to meet the signal function safety requirements.
The method comprises the steps that a train starts, an enhanced LKJ monitors the running of the train according to the least adverse speed requirement, such as 45km/h, due to the lack of temporary speed limiting information before a temporary speed limiting revealing command is received, and the train runs according to a normal monitoring speed curve after the temporary speed limiting revealing message is received at an originating station and an outbound transponder.
The method comprises the steps that a temporary speed limit disclosure message sent by a TSRC (traffic control system) contains no temporary speed limit disclosure message, the message contains jurisdiction range kilometer scale information, if a train approaches to a jurisdiction range boundary specified by the temporary speed limit disclosure message, an enhanced LKJ fails to receive an updated temporary speed limit disclosure message, such as a transponder failure, fails to receive the transponder message, or a TSRC or LEU failure, receives a default message, and the enhanced LKJ controls the train to be decelerated to a specified speed, such as 45km/h, before the jurisdiction range boundary according to the most unfavorable condition, so that safe running of the train is ensured.
Optionally, if the enhanced LKJ device is restarted in the interval, after the restart is successful, the temporary speed limit monitoring is allowed to be executed by continuously using the received and stored temporary speed limit information until an updated temporary speed limit disclosure message is received before entering the control range of the adjacent dispatching desk, so that the influence on driving after the restart of the enhanced LKJ device in the interval is reduced.
Through the design, the operation related functions of planning, issuing, executing, canceling and the like of the temporary speed limit dispatching command can be met, the signal fault-safety requirement is met, and the safety of temporary speed limit control is ensured.
The invention has the technical advantages that: (1) The temporary limit dispatching command is unified by a dispatching center as a source, is automatically transmitted through equipment, and directly reaches the vehicle-mounted LKJ equipment to implement temporary speed limiting control, so that management and control are integrated, and the problem that the IC temporary speed limiting operation reveals that the dispatching command is manually transmitted layer by layer is solved;
(2) After the temporary speed limit command is confirmed by a central dispatcher, the temporary speed limit command is automatically transmitted to a station TSRC, and the TSRC is transmitted to a vehicle-mounted LKJ device for execution through a transponder transmission system (containing LEU, transponder and BTM), and the design of related devices and control processes accords with the safety requirement of signal functions, so that the safety of temporary speed limit control is ensured;
(3) By adopting the design of the temporary speed limit dispatching orders of absolute kilometers and absolute time, on one hand, the temporary speed limit control range is enlarged from a station to a dispatching desk, the number of equipment for setting TSRC at the station is reduced, and on the other hand, the formatted temporary speed limit orders are encoded by the TSRC, and other processes are not needed except decoding by the vehicle-mounted BTM equipment, such as: temporary speed limit command checking, splitting, converting and the like, has simple system functions, simple equipment, reliability and safety, is convenient to implement and subsequently apply and maintain in the engineering transformation of the existing line of the common speed railway, and has important market application value.
The embodiments described above are intended to provide those skilled in the art with a means for making or using the present invention, and various modifications or variations may be made to the embodiments described above without departing from the inventive concept thereof, and such modifications or variations fall within the scope of the present invention.
Claims (10)
1. The temporary speed limit control method is characterized by comprising temporary speed limit control range setting and temporary speed limit control operation, inherits a temporary speed limit control mode of a vehicle-mounted LKJ device based on operation revealing scheduling commands, and a scheduling center scheduler formulates temporary speed limit scheduling commands through a CTC/TDCS scheduling platform, wherein the temporary speed limit scheduling commands mainly comprise the following contents: speed limit area, speed limit time and speed limit value;
the speed limit area adopts four element descriptions of a working line number, a line uplink and downlink, a starting kilometer sign and a terminating kilometer sign, namely, the temporary speed limit area of the line is marked by an absolute kilometer sign;
the speed limit time comprises a start time and an end time, and is expressed in a format of year/month/day/hour/minute, namely the absolute time is used for marking the speed limit time;
the speed limiting value is divided into passenger car speed limiting and truck speed limiting;
after the temporary speed limit dispatching command is formulated, the temporary speed limit dispatching command is converted into a formatted non-text communication data frame, the formatted non-text communication data frame is sent to CTC/TDCS station machine equipment by CTC/TDCS central equipment, the formatted temporary speed limit dispatching command is sent to vehicle-mounted LKJ equipment by station train control equipment,
and the vehicle-mounted LKJ device executes temporary speed limit monitoring according to the speed limit area, the speed limit time and the speed limit value determined by the temporary speed limit scheduling command.
2. The method for temporary speed limit control of a train according to claim 1, wherein the station train control device is a station TSRC, the temporary speed limit scheduling command is transmitted to the station TSRC through a CTC/TDCS station machine, and is transmitted to the vehicle-mounted LKJ device by the TSRC through a transponder transmission system, and the transponder transmission system includes an LEU, a transponder, and a BTM, to complete the temporary speed limit control.
3. The temporary speed limit control method for trains according to claim 2, characterized in that the temporary speed limit control operation is the formulation, issuing, execution, cancellation, etc. of temporary speed limit scheduling commands; the method comprises the steps of carrying out operations such as planning, issuing, executing and canceling of a temporary speed limit dispatching command by taking a dispatching desk as a unit, wherein the temporary speed limit control range is consistent with the traffic command jurisdiction of the corresponding dispatching desk; the TSRC is arranged at an initiating station and a boundary related station in the traffic command range of the dispatching desk.
4. The method of temporary speed limit control for a train according to claim 1, wherein the method is implemented by a temporary speed limit control system comprising
Center device: CTC/TDCS scheduler;
station equipment: CTC/TDCS station, TSRC, enhanced LEU, active transponder;
and (3) an on-board device: enhanced LKJ, BTM;
the station TSRC is directly interfaced with CTC/TDCS station equipment; the TSRC interfaces directly with the enhanced LEU.
5. The method for temporary speed limit control of train according to claim 4, wherein the enhanced LKJ device is a core of a vehicle-mounted device, and based on line basic data stored in a vehicle-mounted centralized manner, maintains a format and content of temporary speed limit operation disclosure information unchanged, receives and parses a temporary speed limit disclosure message sent from a station transponder from a BTM based on an existing LKJ device, wherein the temporary speed limit content and format are compatible with an existing IC card operation disclosure scheduling command, and the enhanced LKJ performs temporary speed limit monitoring of the train according to the temporary speed limit information in the message without using an IC card to acquire the temporary speed limit operation disclosure information.
6. The method for temporarily limiting speed of a train according to claim 5, wherein the temporary speed limit disclosure message includes an infinite speed disclosure message and a finite speed limit disclosure message;
when no temporary speed limit exists in the TSRC temporary speed limit control range, an infinite speed revealing message is sent, and the content of a message user information packet comprises a speed limit command number, a line number, a speed limit type, a jurisdiction starting kilometer post, a jurisdiction ending kilometer post and the like, wherein the speed limit type is no speed limit;
when temporary speed limit exists in the temporary speed limit control range, a temporary speed limit display message is sent, and the content of the message user information packet comprises a speed limit command number, a line number, a speed limit type, a jurisdiction starting kilometer sign, a jurisdiction ending kilometer sign, a line class, a speed limit time period, a starting time, a stopping time, a speed limit starting kilometer sign, a speed limit ending kilometer sign, a speed limit station, a speed limit stock number, a passenger car speed limit value, a truck speed limit value and the like.
7. The temporary speed limit control method for trains according to claim 5, characterized in that the temporary speed limit control range is set to be managed with the traffic command jurisdiction of the corresponding dispatching desk as a boundary; the temporary speed limiting revealing message is sent by a station entrance/exit trackside transponder provided with a TSRC;
a TSRC is set at a station of an initial operation in the jurisdiction of a corresponding dispatching desk and is responsible for sending a temporary speed limit disclosure message in a dispatching area to an initial train;
setting a TSRC at a boundary station of a dispatching jurisdiction, and transmitting a temporary speed limit message in the dispatching jurisdiction to a train entering the dispatching jurisdiction; the method comprises the steps of responsible for sending temporary speed limiting disclosure messages in a certain area in front of an adjacent dispatching desk to a train which exits from a jurisdiction area of the dispatching desk;
the TSRC temporary speed limiting control range of the boundary station covers the traffic command jurisdiction boundary of the dispatching desk, and extends a station and a section to the adjacent dispatching desk to the station arrival signal machine in front of the boundary station of the adjacent dispatching desk;
besides the starting station and the dispatching administration boundary station, other stations do not need to be provided with TSRC.
8. The method for temporarily limiting speed of a train according to claim 7, wherein the TSRC setting and the temporary speed limiting control range design of the station in the method enable the station to obtain all temporary speed limiting information of the jurisdiction of the dispatching desk at the starting station and the administration boundary of the traffic command without setting TSRC according to the station; the TSRC of the boundary station of the adjacent dispatching desk jurisdiction is communicated, temporary speed limiting information in a certain range of each jurisdiction is interacted, the fact that before a train enters the station of the adjacent dispatching desk jurisdiction is guaranteed, if the train encounters a temporary speed limiting area, speed reduction in advance can be implemented, the safety of temporary speed limiting control is guaranteed, meanwhile, the fact that the jurisdiction of the dispatching desk is consistent with the range of a temporary speed limiting command formulated by a dispatcher is achieved, and the inter-area temporary speed limiting dispatching command is transparent to the dispatcher.
9. The method for temporarily limiting speed of a train according to claim 7, wherein the TSRC is capable of selectively transmitting only the temporary speed limit disclosure message from the present transponder to the front temporary speed limit control range according to the line section and the direction corresponding to the outbound transponder.
10. The temporary speed limit control method of trains according to claim 5, characterized in that a dispatching center dispatcher formulates a temporary speed limit dispatching command and inputs control parameters related to the temporary speed limit dispatching command through a dispatching desk terminal, the dispatcher confirms the correctness of the control parameters in the formulation process, and sends the control parameters to CTC/TDCS station machines of all TSRC stations in the dispatching area of the dispatching desk after confirming without errors, and the CTC/TDCS station machines send the temporary speed limit dispatching command to a connected TSRC after receiving the temporary speed limit dispatching command and feed back a dispatching command receiving result to the dispatching desk;
after the TSRC successfully receives the scheduling command, the scheduling command is automatically coded in real time according to the transponder coding specification requirement, a transponder temporary speed limiting revealing message is generated and sent to the enhanced LEU, and a scheduling command receiving result is fed back to the CTC/TDCS station;
the enhanced LEU directly controls the received temporary speed limit disclosure message to be sent through a C interface to control a station entrance/exit active transponder, the train receives the temporary speed limit disclosure message through a BTM when crossing the transponder, decodes the user message, sends the temporary speed limit disclosure message according to an enhanced LKJ request, analyzes and stores temporary speed limit information after receiving the disclosure message, and executes temporary speed limit monitoring according to a speed limit area, speed limit time and a speed limit value in the speed limit information.
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| CN202310763289.1A CN116639164A (en) | 2023-06-27 | 2023-06-27 | Train temporary speed limiting control method suitable for common speed railway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117227769A (en) * | 2023-11-15 | 2023-12-15 | 北京全路通信信号研究设计院集团有限公司 | Real-time dynamic control method for temporary speed limit disclosure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117227769A (en) * | 2023-11-15 | 2023-12-15 | 北京全路通信信号研究设计院集团有限公司 | Real-time dynamic control method for temporary speed limit disclosure |
| CN117227769B (en) * | 2023-11-15 | 2024-01-19 | 北京全路通信信号研究设计院集团有限公司 | Real-time dynamic control method for temporary speed limit disclosure |
| WO2024017422A3 (en) * | 2023-11-15 | 2024-05-10 | 北京全路通信信号研究设计院集团有限公司 | Real-time dynamic control method for temporary speed-limit revelation |
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