Message processing method and system in point backup mode of train control system

Abstract

The invention discloses a message processing method and system in a point backup mode of a train control system, and the method comprises the steps: reading line information, and checking the line information; when the line information passes the check, identifying and recording all active transponders and attributes thereof in the current station based on the line information; for each active transponder, generating a parking message and an authorization message; all the generated parking messages and authorization messages are generated into an output table, and the output table is audited; after the output table passes the audit, scrambling the parking message and the authorization message to generate binary scrambling data, and sending the binary scrambling data to a train control center; and sending message data to the train according to the binary scrambling code data through the train control center. According to the invention, the message data is generated in advance as the input source of the train control center, so that the calculation amount is reduced and the accuracy of the message data is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of rail transit, and particularly relates to a message processing method and system in the point-type backup mode of a train control system. Background Art

[0002] With the development of new train control systems, vehicle-ground communication is mainly based on wireless communication. Thus, under the condition of reducing the number of trackside devices, different specific application solutions can be adopted to implement operation control modes such as virtual block, moving block, and virtual formation of trains, improving the operation efficiency of trains and the line capacity of tracks.

[0003] When the vehicle-ground wireless communication is interrupted, since information such as movement authorization or line data cannot be obtained from ground devices, the train control system and on-vehicle devices will be unable to continue to fully supervise and protect the train operation. In this case, generally, the safety protection of the train needs to be handed over to the driver or a backup system is used. In the backup mode of the new train control system, point-type message data needs to be provided to on-vehicle devices through the train control center, so as to allow the train to enter the station at a higher speed, improve the efficiency of train arrival, departure, or passing through the station in the backup mode, and better ensure the safety of train operation.

[0004] However, in the existing train control system in the point-type backup mode, the message data to be sent needs to be generated in real time by the train control center, with a large real-time computing amount and a high computing power requirement for the train control center. Moreover, during the process of real-time generation and transmission of the message data, there are no measures for inspection and review, and the situation of coding errors may occur, making it difficult to fully guarantee the train operation safety. Summary of the Invention

[0005] The purpose of the present invention is to provide a message processing method and system in the point-type backup mode of a train control system, which aims at the problems that in the existing train control system in the point-type backup mode, the train control center needs to generate and send message data in real time, with a large computing amount and difficulty in ensuring accuracy. By offline generating point-type message data as the input source of the train control center in the point-type backup mode, the real-time computing amount of the train control center is effectively reduced, and through the inspection of line information and the review of the output table, the accuracy rate of the message data is guaranteed, which is beneficial to fully ensuring the train operation safety.

[0006] To achieve the above purpose, the present invention is realized through the following technical solutions:

[0007] The first aspect of the present invention provides a message processing method in the point-type backup mode of a train control system, including: reading line information and inspecting the line information;

[0008] When the line information passes the check, based on the line information, identify and record all the active balises and their attributes in the current platform;

[0009] For each of the active balises, generate a stop message and an authorization message;

[0010] Generate all the generated stop messages and authorization messages into an output table, and review the output table;

[0011] When the output table passes the review, scramble the stop message and the authorization message to generate binary scrambled data, and send the binary scrambled data to the train control center;

[0012] Through the train control center, send the message data to the train according to the binary scrambled data.

[0013] Optionally, when the line information fails the check, output an alarm message and stop generating message data;

[0014] When the output table fails the review, output an alarm message and stop generating the binary scrambled data.

[0015] Optionally, the line information includes at least a balise location table, a line data table, a line speed table, and a route information table.

[0016] Optionally, the step of generating the authorization message for each of the active balises includes:

[0017] For each of the active balises, identify the associated route information in the route information table, and based on the section information passed by each route, obtain the lengths of all sections in the line data table, and generate the length information into the authorization message.

[0018] Optionally, the step of generating the authorization message for each of the active balises includes:

[0019] For each of the active balises, identify the associated route information in the route information table, and based on the start and end information of each route, obtain all the balise information within the route range in the balise location table, and generate the balise information into the authorization message.

[0020] Optionally, the step of generating the authorization message for each of the active balises includes:

[0021] For each of the active balises, identify the associated route information in the route information table, based on the start and end information of each route, obtain the line speed information of each section in the line speed table, and generate the line speed information into the authorization message.

[0022] Optionally, based on the line information, identifying and recording all the active balises in the current station and their attributes includes:

[0023] Identifying and recording all the active balises in the current station and their attributes according to the balise location table.

[0024] Optionally, the attributes of the active balises are inbound balises, outbound balises or approaching inbound balises.

[0025] Optionally, sending message data to a train by the train control center according to the binary scrambling data includes:

[0026] Selecting corresponding message data in different scenarios according to the attributes of the active balises to transmit corresponding authorization information and line data to the train.

[0027] Optionally, the different scenarios include: the route is not arranged or the route signal is not open; the receiving route is arranged and the route signal is open; the departure route is arranged and the route signal is open; the passing route is arranged and the route signal is open.

[0028] The second aspect of the present invention provides a message processing system in the point-type backup mode of a train control system, including:

[0029] A message tool, including:

[0030] An input module for inputting line information;

[0031] An inspection module, connected to the input module, for reading the line information and inspecting the line information;

[0032] A message generation module, connected to the inspection module, for identifying and recording all the active balises in the current station and their attributes based on the line information when the line information passes the inspection, and generating a stop message for each of the active balises; and generating an authorization message for each of the active balises;

[0033] An output module, connected to the message generation module, for generating all the stop messages and the authorization messages generated by the message generation module into an output table for review; and

[0034] A scrambling module, connected to the message generation module, for scrambling the stop messages and the authorization messages to generate binary scrambling data when the output table passes the review; the output module is connected to the scrambling module for outputting the binary scrambling data; and

[0035] A train control center is connected to the output module and is configured to receive the binary scrambled data and send message data to a train according to the binary scrambled data.

[0036] Optionally, the message tool further includes an alarm module, which is configured to output an alarm message and stop generating message data when the line information fails the check;

[0037] The alarm module is further configured to output an alarm message and stop generating the binary scrambled data when the output table fails the review.

[0038] Optionally, after receiving the binary scrambled data, the train control center is configured to select corresponding message data according to the attributes of the active balises in different scenarios, so as to transmit corresponding authorization information and line data to the train.

[0039] The present invention has at least the following technical effects:

[0040] By generating the point type message data offline as the input source of the train control center in the point type backup mode, the real-time computing amount of the train control center is effectively reduced, which is beneficial to improving the system efficiency;

[0041] By checking the input data and providing an output table for message review to ensure the correctness of the message data, the train operation risks caused by the message sending errors of the train control center can be reduced, which is beneficial to fully guaranteeing the train operation safety;

[0042] By real-time feedback of the train route and signal status and allowing the train to enter the station at high speed, the efficiency of the train receiving, dispatching or passing through the station in the backup mode is improved, which is beneficial to reducing the number of trackside devices, reducing the project investment and implementation difficulty. Description of the Drawings

[0043] Figure 1 It is a logic schematic diagram of a message processing method in the point type backup mode of a train control system provided by an embodiment of the present invention;

[0044] Figure 2 It is a schematic diagram of message types that should be sent by active balises with different attributes in different scenarios provided by an embodiment of the present invention;

[0045] Figure 3 It is a schematic diagram of a platform line provided by an embodiment of the present invention. Detailed Embodiments

[0046] The following further elaborates on a message processing method and system in the point-type backup mode of a train control system proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are in a very simplified form and use non-precise scales, only for conveniently and clearly assisting in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features, and advantages of the present invention more obvious and understandable, please refer to the accompanying drawings. It should be noted that the structures, scales, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the efficacy that the present invention can produce and the purpose that can be achieved, should still fall within the scope covered by the technical content disclosed by the present invention.

[0047] As Figure 1 shown, the message processing method in the point-type backup mode of the train control system provided in this embodiment includes: reading line information and checking the line information; when the line information passes the check, based on the line information, identifying and recording all active balises and their attributes in the current platform; for each active balise, generating a stop message and generating an authorization message; generating all the generated stop messages and authorization messages into an output table and auditing the output table; when the output table passes the audit, scrambling the stop messages and authorization messages to generate binary scrambled data, and sending the binary scrambled data to the train control center; through the train control center, sending message data to the train according to the binary scrambled data.

[0048] To implement the above message processing method, this embodiment also provides a message processing system, including a message tool, and the message tool includes an input module, an inspection module, a message generation module, an output module, and a scrambling module.

[0049] Specifically, the input module is used to input line information. The inspection module is connected to the input module and is used to read the line information and check the line information.

[0050] The message generation module is connected to the inspection module and is used to, when the line information passes the check, based on the line information, identify and record all active balises and their attributes in the current platform, and for each active balise, generate a stop message; and for each active balise, generate an authorization message.

[0051] The output module is connected to the message generation module and is used to generate all the parking messages and authorization messages generated by the message generation module into an output table for review. The scrambling module is connected to the message generation module and is used to scramble the parking messages and authorization messages when the output table passes the review to generate binary scrambled data. The output module is connected to the scrambling module and is used to output the binary scrambled data.

[0052] The message tool further includes an alarm module. The alarm module is used to output an alarm message and stop generating message data when the line information fails the check. The alarm module is also used to output an alarm message and stop generating the binary scrambled data when the output table fails the review.

[0053] The message processing system further includes a train control center. The train control center is connected to the output module of the message tool and is used to receive the binary scrambled data and send the message data to the train according to the binary scrambled data. Specifically, after receiving the binary scrambled data, the train control center can select the corresponding message data in different scenarios according to the attributes of the active balises to transmit the corresponding authorization information and line data to the train.

[0054] As Figure 2 shown, in the point-type backup mode, the attributes of the active balises of the train control center mainly include the approach balise, the departure balise, and the approach approach balise. The active balises should send different message data in different scenarios. The scenarios mainly include the following four types: the route is not arranged or the route signal is not open, the receiving route is arranged and the route signal is open, the departure route is arranged and the route signal is open, and the through route is arranged and the route signal is open. For example, referring to Figure 2 , when the active balise is an approach approach balise and is in the scenario where the route is not arranged or the route signal is not open, it needs to send an empty message; when it is in the scenario where the receiving route is arranged and the route signal is open, it needs to send an authorization message. When the active balise is an approach balise and is in the scenario where the route is not arranged or the route signal is not open, it needs to send a parking message.

[0055] In this embodiment, the message tool can be first operated to power on and start, and the line information including the line data and other contents is read. Then, according to different types of active balises, the message data suitable for different scenarios is generated and output, that is, for different active balises, parking messages and authorization messages are generated. After scrambling the message data, the binary scrambled data is provided for the train control center to use. The train control center can select the corresponding scrambled message according to different scenarios and then send the message data out in real time to transmit the corresponding authorization information and line data to the train.

[0056] Specifically, line information can be input from the input module of the message tool. The line information may include, for example, the transponder location table, the line data table, the line speed table, the route information table, and other contents.

[0057] Through the inspection module, the read line information can be inspected to determine whether the line data meets the expectations, such as whether the transponder number belongs to this station, whether the line speed exceeds the limit, etc. If the line information fails the inspection, alarm information is output through the alarm module and the generation of message data including the stop message and the authorization message is stopped; if the line information passes the inspection, further operations can be performed through the message generation module.

[0058] In the message generation module, based on the transponder location table in the line information, all active transponders and their attributes at the current station can be identified and recorded; further, for each active transponder, a stop message can be generated.

[0059] After generating the stop message, for each active transponder, an authorization message can be generated. Specifically, as Figure 1 shown, the relevant route information in the route information table can be identified, based on the section information passed by each route, and the lengths of all sections can be obtained from the line data table, and the length information is generated into the authorization message. For example, referring to Figure 3 , for the JZ transponder (inbound transponder) at the X section entrance, for the route X -> X3, the section lengths of 2 - 4G and 3G can be obtained from the line data table and generated into the ETCS - 12 packet in the authorization message.

[0060] Further, for each active transponder, the relevant route information in the route information table can be identified, based on the start and end information of each route, all transponder information within the route range can be obtained from the transponder location table, and the transponder information is generated into the authorization message. For example, referring to Figure 3 , for the JZ transponder at the X section entrance, for the route X -> X3, the information of the FCZ1 transponder and the CZ1 transponder can be obtained from the transponder location table and generated into the ETCS - 5 packet in the authorization message.

[0061] Finally, for each active transponder, the relevant route information in the route information table can be identified, and based on the start and end information of each route, the line speed information of each section can be obtained from the line speed table, and the line speed information is generated into the authorization message. For example, referring to Figure 3 , for the JZ transponder at the X section entrance, for the route X -> X3, the speeds of the 2 - 4G and 3G sections can be obtained from the line speed table and generated into the ETCS - 27 packet in the authorization message.

[0062] After generating all the parking messages and authorization messages, the parking messages and authorization messages can be further generated in an output table through an output module for review purposes, for example, by staff. When the output table fails the review, an alarm message needs to be output and the generation of the binary scrambled data stopped. When the output table passes the review without errors, the parking messages and authorization messages can be scrambled to generate binary scrambled data.

[0063] Since the binary scrambled data includes the messages that transponders of all attributes need to send under different scenarios. Therefore, the train control center can select the corresponding scrambled code according to different scenarios and then send the message data out in real time to transmit the corresponding authorization information and line data to the train.

[0064] The present invention effectively reduces the real-time computing amount of the train control center by generating the point type message data offline as the input source of the train control center in the point type backup mode, which is beneficial to improving the system efficiency. By checking the input data and providing a message output table for review, the correctness of the message data can be ensured, reducing the potential danger to train operation caused by the wrong code sending of the train control center and fully guaranteeing the train operation safety. By providing real-time feedback on the train route and signal status and allowing the train to enter the station at high speed, the efficiency of train arrival, departure or passing through the station in the backup mode is improved, which is beneficial to reducing the number of trackside devices, lowering the engineering investment and implementation difficulty.

[0065] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

[0066] It should be noted that the devices and methods disclosed in the embodiments of this article can also be implemented in other ways. The device embodiments described above are merely illustrative. For example, the flowcharts and block diagrams in the accompanying drawings show the possible architectures, functions, and operations of devices, methods, and computer program products according to multiple embodiments of this article. In this regard, each block in the flowchart or block diagram may represent a module, program, or part of code that contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and they can sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram and / or flowchart, as well as the combination of blocks in the block diagram and / or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

[0067] In addition, each functional module in the various embodiments of this article can be integrated together to form an independent part, or each module can exist alone, or two or more modules can be integrated to form an independent part.

[0068] Although the content of the present invention has been introduced in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. A message processing method in the point-type backup mode of a train control system, characterized in that including: Read the line information and check the line information; When the line information passes the check, based on the line information, identify and record all active balises and their attributes in the current platform; For each of the active balises, generate a stop message and an authorization message; Generate all the stop messages and the authorization messages into an output table and review the output table; When the output table passes the review, scramble the stop messages and the authorization messages to generate binary scrambled data, and send the binary scrambled data to the train control center; Through the train control center, send message data to the train according to the binary scrambled data.

2. The message processing method according to claim 1, wherein When the line information fails the check, output an alarm message and stop generating message data; When the output table fails the review, output an alarm message and stop generating the binary scrambled data.

3. The message processing method according to claim 1, wherein The line information at least includes a balise position table, a line data table, a line speed table, and a route information table.

4. The message processing method according to claim 3, wherein The steps of generating the authorization message for each of the active balises include: For each of the active balises, identify the associated route information in the route information table, and based on the section information passed by each route, obtain the lengths of all sections in the line data table, and generate the length information into the authorization message.

5. The message processing method according to claim 3, wherein The steps of generating the authorization message for each of the active balises include: For each of the active balises, identify the associated route information in the route information table, and based on the start and end information of each route, obtain all balise information within the route range in the balise position table, and generate the balise information into the authorization message.

6. The message processing method according to claim 3, wherein The steps of generating the authorization message for each of the active balises include: For each of the active balises, identify the associated route information in the route information table, based on the start and end information of each route, obtain the line speed information of each section in the line speed table, and generate the line speed information into the authorization message.

7. The message processing method according to claim 3, wherein The identifying and recording all the active balises and their attributes in the current platform based on the line information includes: According to the balise position table, identify and record all the active balises and their attributes in the current platform.

8. The message processing method according to claim 1, wherein The attributes of the active balises are entrance balises, exit balises, or approaching entrance balises.

9. The message processing method according to claim 1, wherein The sending message data to the train according to the binary scrambled data through the train control center includes: According to the attributes of the active balises, select corresponding message data in different scenarios to transmit corresponding authorization information and line data to the train.

10. The message processing method according to claim 9, wherein The different scenarios include: the route is not arranged or the route signal is not open; the receiving route is arranged and the route signal is open; the departure route is arranged and the route signal is open; the through route is arranged and the route signal is open.

11. A message processing system in the point-type backup mode of a train control system, characterized in that, including: A message tool, including: An input module for inputting line information; An inspection module, the inspection module is connected to the input module, for reading the line information and checking the line information; Message generation module, which is connected to the inspection module and is used to, when the line information passes the inspection, identify and record all active balises and their attributes in the current platform based on the line information, and generate a stop message for each of the active balises; and generate an authorization message for each of the active balises; Output module, which is connected to the message generation module and is used to generate all the stop messages and the authorization messages generated by the message generation module into an output table for review; and Scrambling module, which is connected to the message generation module and is used to scramble the stop messages and the authorization messages when the output table passes the review to generate binary scrambled data; the output module is connected to the scrambling module and is used to output the binary scrambled data; and Train control center, which is connected to the output module and is used to receive the binary scrambled data and send message data to the train according to the binary scrambled data.

12. The message processing system according to claim 11, wherein The message tool further includes an alarm module, which is used to output an alarm message and stop generating message data when the line information fails the inspection; The alarm module is further used to output an alarm message and stop generating the binary scrambled data when the output table fails the review.

13. The message processing system according to claim 11, wherein The train control center is used to select corresponding message data in different scenarios according to the attributes of the active balises after receiving the binary scrambled data, so as to transmit corresponding authorization information and line data to the train.

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