Track section automatic turn-back attribute and safe area generation method, equipment and medium

Abstract

The invention discloses a track section automatic turn-back attribute and safe area generation method and device and a medium. The method comprises the steps that topological data and function definition data of a track traffic line are input; on the basis of the incidence relation between the function definition data and the topological data, through a predefined attribute calculation rule, automatic turn-back attributes of related track sections in the line are automatically calculated, and the automatic turn-back attributes are used for identifying function roles of the track sections in automatic turn-back; on the basis of the automatic turn-back attributes of all the track sections, one or more continuous automatic turn-back safety function areas are automatically generated through a path search algorithm; and outputting the automatic turn-back attributes and the automatic turn-back safety function area information of all the track sections. Compared with the prior art, the method has the advantages that the track section attributes are automatically calculated, the safety function area is generated, and automatic and accurate conversion from the line data to the automatic turn-back control data is achieved.

Description

Technical Field

[0001] This invention relates to the field of automatic control technology for rail transit trains, and in particular to a method, device, and medium for generating automatic turnaround attributes and safety zones for track sections. Background Technology

[0002] In urban rail transit train automatic control systems, the automatic turnaround function not only significantly shortens turnaround time but also reduces the risk of human error, providing technical support for high-density train operation. In current train automatic control systems, the triggering and execution of the automatic turnaround function relies on the attribute annotations of offline electronic maps and the coordinated operation of onboard and trackside systems: when the train stops in an area with automatic turnaround attributes on the offline electronic map, if the driver selects the automatic turnaround mode and confirms it by activating the automatic turnaround button on the driver's cab or platform, the onboard control system enters the automatic turnaround mode. The automatic turnaround attributes on the offline electronic map include three core functional areas: the automatic turnaround activation area, which is the area where the train can begin automatic turnaround operations; the automatic turnaround turning area, which is the turnaround and turning area for automatic turnaround; and the automatic turnaround movement area, which is other related areas where the train travels during the automatic turnaround operation. Simultaneously, the trackside area controller needs to coordinate and implement related functions based on this attribute information.

[0003] When the onboard control system receives the train movement command, the driver initiates the train departure. If the driver is in the cab, departure is initiated by pressing a button on the driver's console or by pressing a button on the platform. Subsequently, the onboard control system moves from the departure platform to the turnaround area according to the train operation command, changes the train's direction of travel, and then moves from the turnaround area to the arrival platform according to the train movement command. In the automatic turnaround area management module, the area controller calculates the association between the train and the automatic turnaround area using the automatic turnaround safety functional area on the offline electronic map. Based on the automatic turnaround related codes in the train position report, it calculates the corresponding codes to be sent to the interlocking subsystem, informing the interlocking system of the lighting method. Simultaneously, based on the automatic turnaround button status sent by the interlocking system, it calculates the automatic turnaround button status information sent to the onboard system via train control information.

[0004] However, in the current offline system data, the automatic turnaround zone information only includes the associated route number, platform number, and turning zone signal. To generate the offline electronic map automatic turnaround zone information for track sections required by the onboard and trackside subsystems, further calculations are needed to assign the automatic turnaround zone information to the track sections and generate an automatic turnaround safety functional area with a start point, end point, and track section. Since this conversion process involves cross-table association calculations of multiple data tables such as track section connection, route, platform, and turning zone, manual data generation would be very difficult. Software needs to automatically design algorithms to generate all the information based on the line information.

[0005] A search revealed Chinese Patent Publication No. CN114954578A, which discloses a method and system for automatically generating turnaround route tables. This method identifies the link relationships between target devices in a standard graphic element library, automatically calculates all routes within each interlocking central station, and then filters and combines route pairs for automatic turnarounds, ultimately generating a structured turnaround route table. However, this method primarily focuses on the automated generation of routes, outputting route sequences and route tables. It does not address how to further map and decompose automatic turnarounds onto specific track segments, or assign refined functional attributes to each track segment.

[0006] Therefore, how to automatically and accurately convert multi-source line data of rail transit lines into precise and directly usable data required for automatic train turnaround is a technical problem that needs to be solved. Summary of the Invention

[0007] The purpose of this invention is to overcome the defects of the prior art by providing a method, device and medium for generating automatic turnaround attributes and safety zones for track sections.

[0008] The objective of this invention can be achieved through the following technical solutions: According to a first aspect of the present invention, a method for generating automatic turnaround attributes and safety zones for track sections is provided, the method comprising: Input the topology data and functional definition data of the rail transit line; Based on the association between the functional definition data and the topology data, and through predefined attribute calculation rules, the automatic turnaround attribute of the relevant track sections in the line is automatically calculated, wherein the automatic turnaround attribute is used to identify the functional role of the track section in the automatic turnaround. Based on the automatic turnaround attributes of all track segments, one or more consecutive automatic turnaround safety functional zones are automatically generated through a path search algorithm; Output the automatic turnaround attributes and automatic turnaround safety zone information for all track sections.

[0009] As a preferred technical solution, the functional definition data includes an automatic turnaround area table, a platform table, a route table, and a turning area table; the topology data includes a track section line connection information table and a signal table.

[0010] As a preferred technical solution, the automatic turnaround attribute includes an automatic turnaround activation area, an automatic turnaround movement area, an automatic turnaround turning area, and an automatic turnaround removal area.

[0011] As a preferred technical solution, the calculation process of the automatic turnaround attribute specifically includes: Based on the associated route list information in the automatic turnaround area table, obtain all track segments in the route list and set them as the initial area for automatic turnaround; Based on the starting platform information in the automatic turnaround area table, obtain the track section corresponding to the starting platform and set it as the automatic turnaround activation area; Based on the topology data, the track section connecting the starting platform and the starting signal of the starting route in the associated route list is obtained and set as an automatic turnaround supplementary area. Based on the turning zone information in the automatic turnaround zone table, the track segment corresponding to the turning zone is obtained and set as the automatic turnaround turning zone.

[0012] As a preferred technical solution, the calculation process of the automatic turnaround attribute further includes: Based on the end station information in the automatic turnaround area table, the track section corresponding to the end station is obtained, and the track section between the end station and the end signal of the end route in the associated route list, as well as the track section between the turning area and the end signal of the starting route, are jointly determined as the automatic turnaround removal area.

[0013] As a preferred technical solution, the automatic turnaround initial zone and the automatic turnaround additional zone are combined to form an automatic turnaround movement zone, which serves as the complete path area that the train is allowed to travel in automatic turnaround mode.

[0014] As a preferred technical solution, the process of generating the automatic turnaround safety functional area specifically includes: Traverse all track segments and identify the track segment that meets the following conditions as the starting track segment: its own automatic turnaround attribute is not an automatic turnaround removal zone, and the automatic turnaround attribute of all track segments connected to it in the down direction is either an automatic turnaround removal zone or does not have any automatic turnaround attribute. Starting from the initial track segment, search along the upward direction for all connected track segments whose own automatic turnaround attribute is not an automatic turnaround removal zone, until a track segment that meets the following conditions is found and identified as the ending track segment: its own automatic turnaround attribute is not an automatic turnaround removal zone, and all its connected track segments in the upward direction have automatic turnaround removal zone attributes or do not have any automatic turnaround attribute; All track segments included in the path between the starting track segment and the ending track segment constitute an automatic turnaround safety zone.

[0015] As a preferred technical solution, the path search algorithm is a depth-first search algorithm.

[0016] As a preferred technical solution, the down direction and up direction are determined by the track section line connection information table.

[0017] As a preferred technical solution, the automatic turnaround attributes and automatic turnaround safety functional area information of all track sections are output and provided to the on-board control system and the trackside control system in a predefined structured data format to realize the automatic turnaround control of the train.

[0018] According to a second aspect of the present invention, an electronic device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the program to implement the method described thereon.

[0019] According to a third aspect of the present invention, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements the method described thereon.

[0020] Compared with the prior art, the present invention has the following advantages: 1. This invention automatically calculates track section attributes and safety functional zones based on the relationship between input line topology data and functional definition data, thereby achieving fully automatic generation of track section attributes and safety functional zones and solving the technical problems of low efficiency and error-proneness of manual data production.

[0021] 2. This invention uses predefined attribute calculation rules to accurately map functional definitions to physical segments, ensuring the logical rigor of attribute division and the high accuracy of results.

[0022] 3. This invention employs a depth-first search algorithm to automatically construct continuous safety functional zones based on the calculated track segment attributes, ensuring the integrity of the safety protection range and the reliability of path search.

[0023] 4. The structured data output by this invention contains complete track section attributes and safety functional area information, which can be directly used by on-board and trackside control systems, realizing seamless integration from design data to control data.

[0024] 5. The method of the present invention can be implemented by computer software coding, and the generated data format is uniform and standardized. It is not only far more efficient than manual methods, but also facilitates rapid updates and maintenance after changes in line data, and has good engineering applicability and maintainability. Attached Figure Description

[0025] Figure 1 This is a detailed flowchart of the present invention; Figure 2 This is a flowchart illustrating the automatic turnaround attributes of all track sections in the route according to the present invention. Figure 3 This is a flowchart illustrating the calculation of all automatic turnaround safety zones in the circuit according to the present invention. Figure 4This is a schematic diagram of the track section layout according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the automatic turnaround attributes and safety functional areas generated in an embodiment of the present invention; Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] Example 1: This invention provides a method for generating automatic turnaround attributes and safety zones for track sections. The automatic turnaround zone is automatically mapped and decomposed into specific track section attributes and automatic turnaround safety functional zones through a standardized algorithm. For example... Figure 1 As shown, the method mainly includes the following steps: Step S1: The system reads and parses the input line data, which can be divided into two main categories: topology data, which describes the physical connection structure of the line, mainly including the track section line connection information table and the signal table. This table clarifies the adjacency relationship between each track section and constitutes the topology map of the entire line; and function definition data, which defines the business logic of automatic turnaround, mainly including the automatic turnaround area table, platform table, route table and turning area table. These tables together describe a complete automatic turnaround task.

[0028] Step S2: As Figure 2 As shown, based on the association between the functional definition data and the topology data, and through predefined attribute calculation rules, an automatic turnaround attribute is assigned to each relevant track section in the line to identify its specific functional role in the automatic turnaround operation: Based on the associated route list in the automatic turnaround area table, obtain all relevant routes and mark the initial attributes of all track segments contained in these routes as the automatic turnaround initial area; Based on the starting platform information in the automatic turnaround area table, query the platform table and mark the track section covered by the starting platform as the automatic turnaround activation area. Based on the topology data, locate the track section connecting the starting platform and the initial route starting signal, and mark its attributes as an automatic turnaround supplementary area; Mark the track segment corresponding to the turning zone defined in the automatic turnaround zone table as the automatic turnaround turning zone; Based on the topology, locate the track section between the terminal station and the terminal route end signal, as well as the track section between the turning area and the initial route end signal, and mark the attributes of these sections as automatic turnaround removal areas.

[0029] The attributes of the initial area and the supplementary area of ​​automatic turnaround are uniformly defined as the automatic turnaround movement area, which represents the complete path that the train can safely travel when performing automatic turnaround.

[0030] Step S3: As Figure 3 As shown, after obtaining the automatic turnaround attributes of all track segments, one or more consecutive automatic turnaround safety functional areas are automatically generated based on these attributes using a path search algorithm.

[0031] The generation process is as follows: Traverse all track segments and find the segment that meets the following conditions as the starting track segment of the safety functional zone: its own attribute is not an automatic turnaround removal zone, and all track segments connected to it in the down direction have the attribute of automatic turnaround removal zone or do not have any automatic turnaround attribute. Starting from each initial track segment, a path search is performed along the upward direction, preferably using a depth-first search algorithm. All connected track segments whose attributes are not automatic turnaround removal zones are tracked until a track segment that meets the following conditions is found and identified as the ending track segment: its own automatic turnaround attribute is not automatic turnaround removal zone, and all its connected track segments in the upward direction have automatic turnaround removal zone attributes or do not have any automatic turnaround attribute. All track segments included in the path between the starting track segment and the ending track segment constitute an automatic turnaround safety zone.

[0032] Step S4: Output the final calculated automatic turnaround attributes of all track sections and all automatic turnaround safety functional area information in a predefined structured data format, such as CSV. This output data can be directly read and applied by the onboard control system and the trackside control system to realize the automatic turnaround control of the train.

[0033] This invention automatically assigns automatic turnaround attributes to track sections based on predefined attribute calculation rules by inputting the topology and functional definition data of the line. Furthermore, it employs a path search algorithm to generate an automatic turnaround safety functional zone composed of continuous track sections based on the attributes. Finally, it outputs complete data for use by the train control system, thereby realizing automatic and high-precision conversion from automatic turnaround zone definition to specific track section functional configuration.

[0034] Example 2: This embodiment uses Figure 4Taking the specific route layout shown as an example, the method of the present invention will be described in detail: Step 1: Input line data; The input line data includes automatic turnaround area information (Table 1), route information (Table 2), track section connection details, and platform, signal, and turning area layout details (Table 2). Figure 4 As shown.

[0035] Table 1 Table 2 Step 2: Calculate the automatic turnaround attribute for all track sections in the line; Based on the route number list in Table 1 and the corresponding track section list in Table 2, the initial track sections for automatic turnaround are: B4, B5, B6, B7, B8, B9, B12, B13, B14, B15, B16, B17, B18. Then, based on the starting platform in Table 1 and the platform range, the track sections of the automatic turnaround activation area are B1 and B2. The track section B3 between the starting platform and the starting signal SI_1 of the starting route 1 is calculated to be an automatic turnaround additional zone; Calculate the area where the turning zone CODA_1 is located, and obtain the automatic turnaround turning zone track segments as B7 and B8; The track section between Platform_2 and the end signal SI_4 of the end route 2, and the track section between the turning area CODA_1 and the end signal SI_2 of the starting route 1 are set as automatic turnaround removal areas; Set both the initial automatic turnaround area and the additional automatic turnaround area as the automatic turnaround movement area.

[0036] The final attributes of each track segment are shown in Table 3: Table 3 Step 3: Calculate all automatic turnaround safety zones in the route; The initial track sections for obtaining the automatic turnaround safety zone are B1 and B14; Starting from B1 and B14 respectively, the search proceeds upwards, ultimately ending at track segment B8.

[0037] The final results are shown in Table 4: Table 4 Step 4: Output the automatic turnaround attributes and automatic turnaround safety zone information for all track sections; Output Tables 3 and 4 as files, in CSV format. The final information for all automatic turnaround areas is as follows: Figure 5 As shown.

[0038] This embodiment demonstrates the execution flow of this method with a specific route layout. By parsing the input configuration information such as automatic turnaround area and route, the method automatically calculates the functional role attributes of all relevant track sections according to the established rules. Based on the attributes and using the path search algorithm, a continuous safe path covering the entire automatic turnaround operation range is automatically constructed. Finally, a structured list of track section attributes and a safety functional area information table are output, forming data that can be directly delivered to the control system. The entire process requires no manual intervention.

[0039] Example 3: The electronic device of this invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in read-only memory (ROM) or loaded from a storage unit into random access memory (RAM). The RAM may also store various programs and data required for device operation. The CPU, ROM, and RAM are interconnected via a bus. Input / output (I / O) interfaces are also connected to the bus.

[0040] Multiple components in the device are connected to the I / O interface, including: input units such as keyboards and mice; output units such as various types of displays and speakers; storage units such as disks and optical discs; and communication units such as network interface cards (NICs), modems, and wireless transceivers. The communication unit allows the device to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0041] The processing unit executes the various methods and processes described above, such as methods S1 to S4. For example, in some embodiments, methods S1 to S4 may be implemented as computer software programs tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program may be loaded and / or installed on the device via ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of methods S1 to S4 described above may be performed. Alternatively, in other embodiments, the CPU may be configured to execute methods S1 to S4 by any other suitable means (e.g., by means of firmware).

[0042] The functions described above in this document can be performed, at least in part, by one or more hardware logic components. For example, exemplary types of hardware logic components that can be used, without limitation, include: Field Programmable Gate Arrays (FPGAs), Application-Specific Integrated Circuits (ASICs), Application Standard Products (ASSPs), System-on-Chip (SoCs), Complex Programmable Logic Devices (CPLDs), and so on.

[0043] The program code used to implement the methods of the present invention can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0044] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0045] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for generating automatic turnaround attributes and safety zones for track sections, characterized in that, Includes the following steps: Input the topology data and functional definition data of the rail transit line; Based on the association between the functional definition data and the topology data, and through predefined attribute calculation rules, the automatic turnaround attribute of the relevant track sections in the line is automatically calculated, wherein the automatic turnaround attribute is used to identify the functional role of the track section in the automatic turnaround. Based on the automatic turnaround attributes of all track segments, one or more consecutive automatic turnaround safety functional zones are automatically generated through a path search algorithm; Output the automatic turnaround attributes and automatic turnaround safety zone information for all track sections.

2. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 1, characterized in that, The functional definition data includes an automatic turnaround area table, a platform table, a route table, and a turning area table; the topology data includes a track section connection information table and a signal table.

3. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 1, characterized in that, The automatic turnaround attribute includes an automatic turnaround activation area, an automatic turnaround movement area, an automatic turnaround turning area, and an automatic turnaround removal area.

4. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 2, characterized in that, The calculation process for the automatic foldback attribute specifically includes: Based on the associated route list information in the automatic turnaround area table, obtain all track segments in the route list and set them as the initial area for automatic turnaround; Based on the starting platform information in the automatic turnaround area table, obtain the track section corresponding to the starting platform and set it as the automatic turnaround activation area; Based on the topology data, the track section connecting the starting platform and the starting signal of the starting route in the associated route list is obtained and set as an automatic turnaround supplementary area. Based on the turning zone information in the automatic turnaround zone table, the track segment corresponding to the turning zone is obtained and set as the automatic turnaround turning zone.

5. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 4, characterized in that, The calculation process for the automatic foldback attribute also includes: Based on the end station information in the automatic turnaround area table, the track section corresponding to the end station is obtained, and the track section between the end station and the end signal of the end route in the associated route list, as well as the track section between the turning area and the end signal of the starting route, are jointly determined as the automatic turnaround removal area.

6. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 4, characterized in that, The automatic turnaround initial zone and the automatic turnaround additional zone together constitute the automatic turnaround movement zone, which serves as the complete path area that the train is allowed to travel in automatic turnaround mode.

7. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 5, characterized in that, The process of generating the automatic turnaround safety functional area specifically includes: Traverse all track segments and identify the track segment that meets the following conditions as the starting track segment: its own automatic turnaround attribute is not an automatic turnaround removal zone, and the automatic turnaround attribute of all track segments connected to it in the down direction is either an automatic turnaround removal zone or does not have any automatic turnaround attribute. Starting from the initial track segment, search along the upward direction for all connected track segments whose own automatic turnaround attribute is not an automatic turnaround removal zone, until a track segment that meets the following conditions is found and identified as the ending track segment: its own automatic turnaround attribute is not an automatic turnaround removal zone, and all its connected track segments in the upward direction have automatic turnaround removal zone attributes or do not have any automatic turnaround attribute; All track segments included in the path between the starting track segment and the ending track segment constitute an automatic turnaround safety zone.

8. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 7, characterized in that, The path search algorithm is a depth-first search algorithm.

9. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 7, characterized in that, The down and up directions are determined by the track section connection information table.

10. The method for generating automatic turnaround attributes and safety zones for track sections according to claim 1, characterized in that, The automatic turnaround attributes and automatic turnaround safety functional area information of all track sections are output and provided to the onboard control system and trackside control system in a predefined structured data format to realize the automatic turnaround control of the train.

11. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the program, it implements the method as described in any one of claims 1 to 10.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements the method as described in any one of claims 1 to 10.

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