Signal system switchover method, system, device, and medium

Abstract

A signal system switchover method, implemented based on an active following shadow mode and full-time-domain quality monitoring, and comprising: after a system is started, switchover subsystems WDS and ODS set a default working state, i.e., an old system operates and a new system is in a shadow-mode operation state (step 1); the new system collects working states of tracksides and trains and sends the working states to a panoramic cab HMS (step 2); a self-synchronization subsystem TAS periodically synchronizes and loads a daytime formal operation plan of the old system to the new system (step 3); the panoramic cab HMS checks whether working modes of the tracksides and the trains are consistent, and automatically gives an alarm when the working modes are not consistent or a fault occurs (step 4); the new system automatically collects operation data in a shadow operation mode and stores the operation data to a line data pool (step 5); a data lake configured by the quality monitoring subsystem QMS draws data from the line data pool (step 6); the quality monitoring subsystem QMS automatically analyzes and displays a full system operation quality state (step 7); during nighttime debugging of the new system, switching to a mode in which the new system operates is implemented, and the shadow mode stops running (step 8); and after the nighttime debugging ends, the shadow mode is recovered (step 9). The capacity and reliability of the new system is checked without influencing the operation safety and efficiency. Also provided are a system using the signal switchover method, an electronic device, and a computer-readable storage medium.

Description

Signal system reverse connection method, system, device and medium Technical Field

[0001] The present invention relates to a rail transit signal system, and in particular to a signal system inversion method and system. Background Art

[0002] Rail transit signaling systems are a crucial component of rail transit automation systems. They encompass the technical measures and supporting equipment required for train command, train operation monitoring, and management. Their role is to direct train traffic and ensure safe operation. Urban rail transit, characterized by high density, short intervals, short station distances, and high speeds, places high demands on traffic support systems for safety, high throughput, strong anti-interference capabilities, high reliability, and a high degree of automation.

[0003] With the continuous advancement of rail transit technology, rail transit signaling systems are constantly undergoing upgrades and renovations. During these upgrades, the old system is typically used during operational hours, with the new system used only during commissioning. Once the new system is fully commissioned, a switchover is made to the new system, which then controls train operations. This switchover approach establishes clear boundaries in time and space between the existing and new systems for line and train control, preventing safety risks associated with incorrect train control.

[0004] However, this approach suffers from the inability to conduct full-time stress testing of all trains on the entire line, covering the entire operating time, before the new system officially enters passenger service. This creates significant uncertainty about whether the new system will be able to meet the required service quality standards after taking over operations. This is particularly critical for the renovation and upgrading of busy, heavily loaded trunk hub lines. Existing crossover solutions primarily address tracking strategies, safety isolation, and quality monitoring between the old and new systems, which presents certain limitations.

[0005] Summary of the Invention

[0006] The purpose of the present invention is to provide a signal system inversion method and system in order to overcome the defects of the above-mentioned prior art.

[0007] The purpose of the present invention can be achieved by the following technical solutions:

[0008] According to a first aspect of the present invention, a signal system reversal method is provided. The method is implemented based on an active shadow following mode and full-time domain quality monitoring. The method specifically comprises the following steps:

[0009] Step S1, the signal system is started, the working state is set to the old system working state and the new system shadow running state, and step S2 is executed;

[0010] Step S2: When the signal system is officially operational, the old system performs normal operation control, and the new system obtains line and train operation data, and then executes step S3;

[0011] Step S3: The automatic data collection module provides the operating data acquired by the new system to the trackside line data pool. The line data pool provides the operating data to the central data lake, and step S4 is executed.

[0012] Step S4: The quality monitoring subsystem QMS automatically analyzes the operation quality based on the operation data in the central data lake and transmits the results to the panoramic cockpit HMS, and then executes step S5;

[0013] Step S5: When debugging the signal system, the working state is set to the new system working state.

[0014] As a preferred technical solution, the signal system in step S1 sends the working status of the entire trackside system and vehicle system to the panoramic cockpit HMS.

[0015] As a preferred technical solution, in step S2, before the signal system is officially put into operation, the old system control center synchronizes the official operation plan to the new system control center through the self-synchronization subsystem TAS.

[0016] As a preferred technical solution, when the signal system in step S2 is officially put into operation, the panoramic cockpit HMS checks the working status of the trackside system and vehicle system of the entire line, and automatically alarms if any equipment is in the new system working state.

[0017] As a preferred technical solution, in step S3, the line data pool unidirectionally receives the operating data of the wayside system and the vehicle system.

[0018] As a preferred technical solution, in step S3, the data in the line data pool is supplied to the central data lake in a unidirectional manner.

[0019] As a preferred technical solution, in step S4, the quality monitoring subsystem QMS performs analysis based on the data in the central data lake.

[0020] As a preferred technical solution, in step S5, when the signal system is debugged, the automatic data collection module and the quality monitoring subsystem QMS work normally and mark the working system.

[0021] According to a second aspect of the present invention, a system applying the signal system reversal method is provided, comprising a new system control center, a self-synchronizing subsystem TAS, an old system control center, a panoramic cockpit HMS, a quality monitoring subsystem QMS, a central data lake, a line data pool, a trackside system and a vehicle system. The old system control center synchronizes the plan to the new system control center through the self-synchronizing subsystem TAS, and the data of the trackside system and the vehicle system are transmitted to the panoramic cockpit HMS in sequence through the line data pool, the central data lake and the quality monitoring subsystem QMS.

[0022] As a preferred technical solution, the self-synchronization subsystem TAS is used to synchronize the official operation plan of the old system control center to the new system control center.

[0023] As a preferred technical solution, the quality monitoring subsystem QMS includes an automatic data collection module, an automatic data analysis module and an automatic quality assessment module.

[0024] As a preferred technical solution, the panoramic cockpit HMS includes a large quality monitoring screen and an abnormal emergency alarm module.

[0025] As a preferred technical solution, the trackside system includes a trackside switching subsystem WDS and new trackside equipment and old trackside equipment switchedly connected to the trackside switching subsystem WDS.

[0026] As a preferred technical solution, the vehicle system includes an on-board switching subsystem ODS and on-board new equipment and on-board old equipment switchably connected to the on-board switching subsystem ODS.

[0027] According to a third aspect of the present invention, an electronic device is provided, comprising a memory and a processor, wherein a computer program is stored in the memory, and the processor implements the method when executing the program.

[0028] According to a fourth aspect of the present invention, a computer-readable storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the method described above is implemented.

[0029] Compared with the prior art, the present invention has the following advantages:

[0030] 1) During operation hours, when the old system is controlling the vehicle, the new system intervenes in advance in shadow mode, enabling monitoring of the entire operation scenario and verifying the capacity and reliability of the new system without affecting operational safety and efficiency.

[0031] 2) The present invention improves the safety of the reverse connection solution through multiple safety isolation designs;

[0032] 3) The present invention realizes the automatic collection of operation data, and the automatic analysis and evaluation of operation quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] FIG1 is a flow chart of a signal system inversion method according to the present invention;

[0034] FIG2 is an architecture diagram of a signal system inversion system according to the present invention;

[0035] The numbers in Figure 2 are as follows: 1. New system control center, 2. Self-synchronization subsystem TAS, 3. Old system control center, 4. Panoramic cockpit HMS, 5. Quality monitoring subsystem QMS, 6. Central data lake, 7. Line data pool, 8. Wayside system, 80. Wayside switching subsystem WDS, 81. New wayside equipment, 82. Old wayside equipment, 9. Vehicle system, 90. On-board switching subsystem ODS, 91. New on-board equipment, 92. Old on-board equipment. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0037] This invention provides a signal system rewiring method that can also be used for upgrades and renovations in rail transit and other related industrial control fields. By placing the signal system in a state where the old system is operating and the new system is in a shadow state, the quality of the new system's initial commissioning after the rewiring can be ensured.

[0038] The shadow operation state means that after the new system is loaded with the formal operation plan, it only obtains the operation data of the line and train when the signal system is officially in operation and the old system is working normally, and does not participate in any equipment control or train safety protection work.

[0039] As shown in FIG1 , the inverted connection method specifically includes the following steps:

[0040] Step 1: After the system is started, the default working state of the reverse subsystem WDS and ODS is the old system, and the new system is put into shadow mode;

[0041] Step 2: The new system collects the working status of all new systems on the trackside and on trains and sends it to the panoramic cockpit HMS4;

[0042] Step 3: Before starting daytime operations, the self-synchronization subsystem TAS2 regularly synchronizes the old system's daytime formal operation plan and loads it into the new system;

[0043] Step 4: During daytime operations, the old system is responsible for controlling wayside equipment, ensuring train safety and operation control. The new system operates in active follow-up mode, acquiring the status of the line and trains. The panoramic cockpit HMS4 checks the operating modes of all trackside equipment and all trains along the entire line. If the operating modes of the trackside reversing subsystems WDS80 and the onboard reversing subsystem ODS90 are inconsistent or malfunction, the panoramic cockpit HMS4 will automatically issue an alarm.

[0044] Step 5: During daytime operation, the new system uses the shadow operation mode to automatically provide the operation data to the line data pool 7 set up at the trackside for storage through the data automatic collection module. The trackside equipment and trains do not receive any data sent by the line data pool 7;

[0045] Step 6: The central data lake 6 configured by the quality monitoring subsystem QMS5 will extract data from the line data pool 7. The data from the line data pool 7 can only be provided to the central data lake 6 in a one-way manner. The line data pool 7 does not accept data from the central data lake 6.

[0046] Step 7: The quality monitoring subsystem QMS5 automatically analyzes the full-time operational quality status of the new system based on the data from the central data lake 6 and provides it to the monitoring engineer through the panoramic cockpit HMS4.

[0047] Step 8: During the nighttime commissioning of the new system, the wayside switching subsystem WDS80 and the onboard switching subsystem ODS90 are switched to the new system operating mode. The shadow mode stops running. The automatic data collection module and the quality monitoring subsystem QMS5 continue to operate normally, but the working system needs to be marked.

[0048] Step 9: After the night debugging is completed, the trackside switching subsystem WDS80 and the onboard switching subsystem ODS90 are switched to the default old system control state, and the new system works in the shadow mode.

[0049] When the working mode status in the inverting device is inconsistent or fails, an automatic alarm will be issued.

[0050] The above is an introduction to the method embodiment. The following further illustrates the solution of the present invention through a system embodiment.

[0051] The present invention also provides a signal system reconnection system, as shown in Figure 2. The system includes a new system control center 1, a self-synchronizing subsystem TAS2, an old system control center 3, a panoramic cockpit HMS4, a quality monitoring subsystem QMS5, a central data lake 6, a line data pool 7, a trackside system 8, and a vehicle system 9. The old system control center 3 synchronizes the plan to the new system control center 1 via the self-synchronizing subsystem TAS2. Data from the trackside system 8 and vehicle system 9 are transmitted to the panoramic cockpit HMS4 via the line data pool 7, the central data lake 6, and the quality monitoring subsystem QMS5, respectively. The trackside system 8 includes a trackside reconnection subsystem WDS80, new trackside equipment 81, and old trackside equipment 82; the vehicle system 9 includes an onboard reconnection subsystem ODS90, new onboard equipment 91, and old onboard equipment 92. Both the trackside reversing subsystem WDS80 and the on-board reversing subsystem ODS90 include safety isolation methods and corresponding modules, working mode monitoring modules and fault alarm indications; the quality monitoring subsystem QMS5 includes a data automatic collection module based on a dedicated network, line data pool and central data lake with full isolation, a data automatic analysis module based on a fast self-matching algorithm and self-learning capabilities, and an automatic quality assessment module; the cockpit consists of a large quality monitoring screen and an abnormal emergency alarm module.

[0052] This system, used in the Shanghai Metro Line 3 / 4 signal renovation project, effectively addressed the issue of insufficient debugging and verification time for the renovation project. By activating shadow mode during daytime operations, the status of all new system trackside and vehicle equipment is displayed in real time within the panoramic cockpit. Shadow mode was used to complete stress testing with the maximum number of operating trains and verify the operational stability of the entire system. By concurrently utilizing extensive daytime operating hours to collect extensive new system operational data and automatically assess operational quality, system performance can be continuously improved, ensuring high-quality operation of the new system.

[0053] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the described module can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0054] The electronic device of the present invention includes a central processing unit (CPU), which can perform various appropriate actions and processes according to computer program instructions stored in a read-only memory (ROM) or loaded from a storage unit into a random access memory (RAM). In the RAM, various programs and data required for device operation can also be stored. The CPU, ROM, and RAM are connected to each other via a bus. An input / output (I / O) interface is also connected to the bus.

[0055] Many components in a device are connected to the I / O interface, including: input units, such as a keyboard and mouse; output units, such as various types of displays and speakers; storage units, such as magnetic disks and optical disks; and communication units, such as network cards, modems, and wireless communication transceivers. The communication unit allows the device to exchange information / data with other devices via computer networks such as the Internet and / or various telecommunication networks.

[0056] The processing unit performs the various methods and processes described above, such as the inventive method. For example, in some embodiments, the inventive method can be implemented as a computer software program, which is tangibly contained in a machine-readable medium, such as a storage unit. In some embodiments, part or all of the computer program can be loaded and / or installed on the device via a ROM and / or a communication unit. When the computer program is loaded into RAM and executed by the CPU, one or more steps of the inventive method described above can be performed. Alternatively, in other embodiments, the CPU can be configured to perform the inventive method by any other appropriate means (e.g., by means of firmware).

[0057] The functions described above herein may be performed, at least in part, by one or more hardware logic components. For example, and without limitation, exemplary types of hardware logic components that may be used include: field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), systems on chip (SOCs), complex programmable logic devices (CPLDs), and the like.

[0058] The program code for implementing the method of the present invention can be written in any combination of one or more programming languages. Such program code can be provided to a processor or controller of a general-purpose computer, a special-purpose computer, or other programmable data processing device so that when the program code is executed by the processor or controller, the functions / operations specified in the flow chart and / or block diagram are implemented. The program code can be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0059] In the context of the present invention, a machine-readable medium may be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, device, or apparatus. A machine-readable medium may be a machine-readable signal medium or a machine-readable storage medium. A machine-readable medium may include, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing. More specific examples of machine-readable storage media may include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0060] 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 such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A signal system inversion method, characterized in that: The method is implemented based on active shadow following mode and full-time domain quality monitoring, and the method specifically includes the following steps: Step S1, the signal system is started, the working state is set to the old system working state and the new system shadow running state, and step S2 is executed; Step S2: When the signal system is officially put into operation, the old system performs normal operation control, and the new system obtains the operation data of the line and the train, and then executes step S3; Step S3, the data automatic collection module provides the operation data acquired by the new system to the trackside line data pool (7), and the line data pool (7) provides the operation data to the central data lake (6), and step S4 is executed; Step S4, the quality monitoring subsystem QMS (5) automatically analyzes the operation quality according to the operation data in the central data lake (6) and transmits the result to the panoramic cockpit HMS (4), and executes step S5; Step S5, when debugging the signal system, the working state is set to the new system working state.

2. A signal system inversion method according to claim 1, characterized in that: The signal system in step S1 sends the working status of the whole trackside system (8) and the vehicle system (9) to the panoramic cockpit HMS (4).

3. A signal system inversion method according to claim 1, characterized in that: In the step S2, before the signal system is officially put into operation, the old system control center (3) synchronizes the official operation plan to the new system control center (1) through the self-synchronization subsystem TAS (2).

4. A signal system inversion method according to claim 1, characterized in that: When the signal system in step S2 is officially put into operation, the panoramic cockpit HMS (4) checks the working status of the trackside system (8) and the vehicle system (9) of the entire line, and automatically alarms if any equipment is in the working state of the new system.

5. A signal system inversion method according to claim 1, characterized in that: In the step S3, the line data pool (7) unidirectionally receives the operation data of the trackside system (8) and the vehicle system (9).

6. A signal system inversion method according to claim 1, characterized in that: In the step S3, the data of the line data pool (7) is supplied unidirectionally to the central data lake (6).

7. A signal system inversion method according to claim 1, characterized in that: In step S4, the quality monitoring subsystem QMS (5) performs analysis based on the data in the central data lake (6).

8. A signal system inversion method according to claim 1, characterized in that: In the step S5, when the signal system is debugged, the automatic data collection module and the quality monitoring subsystem QMS (5) work normally and mark the working system.

9. A system using the signal system inversion method of claim 1, characterized in that: The system comprises a new system control center (1), a self-synchronizing subsystem TAS (2), an old system control center (3), a panoramic cockpit HMS (4), a quality monitoring subsystem QMS (5), a central data lake (6), a line data pool (7), a trackside system (8) and a vehicle system (9). The old system control center (3) synchronizes a plan to the new system control center (1) through the self-synchronizing subsystem TAS (2), and the data of the trackside system (8) and the vehicle system (9) are transmitted to the panoramic cockpit HMS (4) through the line data pool (7), the central data lake (6) and the quality monitoring subsystem QMS (5) in sequence.

10. The system according to claim 9, characterized in that The self-synchronizing subsystem TAS (2) is used to synchronize the official operation plan of the old system control center (3) to the new system control center (1).

11. The system according to claim 9, characterized in that The quality monitoring subsystem QMS (5) comprises an automatic data collection module, an automatic data analysis module and an automatic quality assessment module.

12. The system according to claim 9, characterized in that The panoramic cockpit HMS (4) comprises a large quality monitoring screen and an abnormal emergency alarm module.

13. The system according to claim 9, characterized in that The trackside system (8) comprises a trackside switching subsystem WDS (80) and new trackside equipment (81) and old trackside equipment (82) switchedly connected to the trackside switching subsystem WDS (80).

14. The system according to claim 9, characterized in that The vehicle system (9) comprises an on-board switching subsystem ODS (90) and an on-board new device (91) and an on-board old device (92) switchedly connected to the on-board switching subsystem ODS (90).

15. An electronic device comprising a memory and a processor, wherein a computer program is stored in the memory, wherein: When the processor executes the program, the method according to any one of claims 1 to 8 is implemented.

16. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

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