A method and device for judging non-normal extinguishing of an interval signal machine and a medium

Abstract

This invention relates to a method, device, and medium for determining abnormal signal extinguishing in a section of track. The method is based on real-time acquisition of information from the section signal and the preceding signal. The method includes the following steps: After the section signal's light position changes and it enters an off state, after a set time, it is determined whether the train's running direction has changed. If so, it is considered a normal extinguishing, and the process ends. Otherwise, it is determined whether the track is occupied. If so, the section signal illuminates red. Otherwise, based on the type and illuminated light position of the preceding signal, the position of the light that the current section signal should illuminate is determined. The cause of the abnormal extinguishing is located based on the filament relay current and the voltage and status of the distribution panel before and after the extinguishing time. Compared with existing technologies, this invention has advantages such as accurate fault location, improved fault handling efficiency, increased system availability, reduced false alarms, improved analysis efficiency, and low cost.

Description

Technical Field

[0001] This invention relates to the field of rail transit signal control, and in particular to a method, device and medium for judging abnormal extinguishing of section signals. Background Technology

[0002] Rail transit is becoming increasingly important in people's lives, and its safety is an indispensable aspect. Signals are fundamental trackside equipment that strictly control the movement and stopping of trains. They are among the most critical pieces of equipment in railway traffic signaling, and therefore, the proper functioning of signals plays a vital role in the railway signaling system.

[0003] For section signals, which are normally in an off state, the integrity of the circuit cannot be checked, and the integrity of the circuit and filaments cannot be monitored in real time. When a fault occurs in any part of the circuit, it cannot be reflected immediately. When the signal is needed, this can cause a failure to open the signal, affecting normal equipment operation and endangering high-speed rail safety. Normal off-state signaling does not require monitoring. However, any abnormal off-state signaling poses a serious threat to train operation safety, requiring immediate notification to electrical personnel to handle the situation and avoid adverse consequences.

[0004] Therefore, it is necessary to both filter out normal signal extinguishing situations in the section and provide accurate alerts for abnormal signal extinguishing.

[0005] A search revealed Chinese Utility Model Patent Publication No. CN206231408U, which discloses a real-time monitoring and alarm device for high-speed railway signal lights. This device includes a monitoring host, a monitoring sub-unit, and a dual-mode relay. Based on hardware acquisition, this patent allows for installation without altering outdoor circuitry; existing lighting units can be reused. Indoor installations simply require adding a monitoring sub-unit and an alarm host. Normally, no manual intervention is needed. It automatically and cyclically monitors the lighting circuit of each signal light and the filament status of each light position, promptly issuing alarm prompts when a filament breaks or the entire signal circuit malfunctions. However, this existing patent suffers from the need to add hardware and fails to determine the causes of abnormal light extinguishing.

[0006] How to accurately identify abnormal light extinguishing and determine the cause of abnormal light extinguishing in the section signal has become 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 judging abnormal extinguishing of section signals.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] According to one aspect of the present invention, a method for determining abnormal extinguishing of a section signal is provided. This method is based on real-time acquisition of information from the section signal and the signal ahead. The method includes the following steps:

[0010] Step S101: After the position of the signal light in the section changes, the light is turned off. After a set time, proceed to step S102.

[0011] Step S102: Determine whether the running direction of the train in the section has changed. If yes, it is considered to be a normal light-off and the process ends; otherwise, proceed to step S103.

[0012] Step S103: Determine if the track is occupied. If yes, the signal light for the current section will turn red; otherwise, proceed to step S104.

[0013] Step S104: Determine the type of the signal ahead. If it is a section signal or an entry signal, and the signal light is displayed normally and continues for the set time, proceed to step S105. If it is a warning signal, determine whether the signal ahead of the warning signal has been found. If found, proceed to step S104; otherwise, end.

[0014] Step S105: Determine the position of the signal that should be lit in the current section based on the type of signal ahead and the position of the lit light;

[0015] Step S106: Based on the filament relay current and the voltage and status of the distribution panel before and after the lamp extinguishing time, locate the cause of the abnormal lamp extinguishing fault.

[0016] Preferably, the information of the section signal and the forward signal includes lamp position information, filament relay current, forward signal type, junction box voltage, and junction box status.

[0017] Preferably, the types of forward signals include section signals, station entry signals, and advance signals.

[0018] Preferably, in step S105, determining the light positions that the current section signal should illuminate based on the type of the preceding signal and the position of the illuminated light includes the following situations:

[0019] The signal ahead is an entry signal; determine which lights should be on in the current section.

[0020] The signal ahead is a section signal; determine which lights should be on in the current section signal.

[0021] And the determination of which lights in the current section should be lit if the preceding signal is a warning signal.

[0022] More preferably, the type of signal ahead is an entry signal, and the determination of the light position that the current section signal should illuminate is specifically as follows:

[0023] If the illuminated light position is red, yellow, double yellow, flashing yellow, or guiding white, then the current section signal should illuminate yellow;

[0024] If the illuminated light position is green-yellow or green, the current signal light in the section should be green.

[0025] More preferably, the forward signal type is a section signal, and the determination of the light position that the current section signal should illuminate is specifically as follows:

[0026] If the illuminated light position is green-yellow or green, the current signal light in the section should be green;

[0027] If the illuminated light is yellow, the signal light for the current section should be green-yellow.

[0028] If the indicator light is red, the signal light for the current section should be yellow.

[0029] More preferably, the type of forward signal is a warning signal, and the determination of the light position that the current section signal should illuminate is specifically as follows:

[0030] If the preceding signal is a warning signal, locate the preceding signal. If the preceding signal is found, determine the signal positions that should be lit in the current section based on the type of the found preceding signal; otherwise, end the process.

[0031] Preferably, the cause of the abnormal light extinguishing fault includes the following steps:

[0032] Step S201: Based on the filament relay current and junction box voltage and status of the signal lights in the current section before and after the lights are turned off, determine the change in the filament relay current before and after the lights are turned off. If a current greater than A appears after the lights are turned off, the fault cause of the abnormal lights being turned off is determined to be a short circuit in the circuit; if a current less than B appears after the lights are turned off, the fault cause of the abnormal lights being turned off is determined to be an open circuit on the outdoor secondary side; otherwise, proceed to step S202.

[0033] Step S202: Determine the voltage or status of the distribution panel. If no corresponding data is collected, the cause of the abnormal light extinguishing is determined to be an open circuit on the primary side from indoor to outdoor. If the voltage of the distribution panel is greater than C or the status of the distribution panel is faulty, the cause of the abnormal light extinguishing is determined to be an open circuit on the primary side. Otherwise, the cause of the abnormal light extinguishing is determined to be an open circuit indoors.

[0034] 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.

[0035] 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.

[0036] Compared with the prior art, the present invention has the following beneficial effects:

[0037] 1. This invention utilizes various information collected from the forward signal type and the section signal, combined with track occupancy and lighting status, to identify abnormal light extinguishing, automatically analyze the causes of abnormal light extinguishing, accurately locate faults, improve the efficiency of fault handling, and enhance system availability.

[0038] 2. This invention reduces the possibility of false alarms and improves the accuracy of analysis results by judging changes in the direction of train travel within a section and filtering out normal light extinguishing and flashing situations.

[0039] 3. This invention focuses on changes in the position of signal lights, reducing the amount of data to be analyzed, lowering the demand for and investment in CPU resources, and improving analysis efficiency.

[0040] 4. This invention does not require additional hardware at the trackside and can be implemented through software, resulting in low cost and easy deployment. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the method for judging abnormal light extinguishing of the section signal in this invention;

[0042] Figure 2 This is a schematic diagram illustrating the determination of abnormal light-out causes in this invention;

[0043] Figure 3 This is a schematic diagram of the signal light position determination logic in the section of the present invention. Detailed Implementation

[0044] 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.

[0045] This embodiment relates to a method for determining abnormal light extinguishing of a section signal. This method is based on real-time acquisition of information from the section signal and the signal ahead. It analyzes changes in the light positions of the section signal as the starting point, and performs in-depth analysis of various scenarios when light extinguishing occurs after a change in light position. By determining whether the train's direction of travel in the section has changed, various scenarios of normal light extinguishing are filtered out. Combining track occupancy, the type of the signal ahead, and its lighting status, the method analyzes whether the lighting status of the current signal is consistent with that of the signal ahead. Simultaneously, it analyzes the acquired information for its corresponding light position to accurately locate the fault.

[0046] The trigger analysis condition for judging abnormal light extinguishing of the section signal is that the position of the section signal light changes and no light is lit.

[0047] When the direction of train travel changes within a section, it is considered a normal light-off event, and no light-off logic is performed.

[0048] Real-time data is collected from the section signals and the signals ahead, including lamp position information, filament relay current, signal type ahead, junction box voltage, and junction box status. The more complete the collected information, the more accurate the fault location and analysis will be.

[0049] like Figure 1 As shown, the method for determining abnormal light extinguishing of the section signal includes the following steps:

[0050] Step S101: After the current signal X in the section changes position, it is turned off. After a set time, proceed to step S102.

[0051] Step S102: Determine whether the running direction of the train in the section has changed. If yes, it is considered to be a normal light-off and the process ends; otherwise, proceed to step S103.

[0052] Step S103: Determine whether the current track is occupied. If yes, determine that the signal light of the current section is red; otherwise, proceed to step S104.

[0053] Step S104: Determine the type of the signal ahead. If it is a section signal or an entry signal, and the signal light position is normally displaying the set time, proceed to step S105. If it is a warning signal, determine whether the signal ahead of the warning signal has been found. If found, proceed to step S104; otherwise, end.

[0054] Step S105 involves determining the light positions that the current section signal should illuminate, which will be explained in detail later.

[0055] Step S106: Based on the filament relay current and the voltage and status of the distribution panel before and after the lamp is turned off, the fault is accurately located by combining the changes in the filament relay current (DJ current) with the changes in the voltage or status of the distribution panel.

[0056] Based on the type of signal ahead and the position of the currently lit light, determine the position of the signal that should be lit in the current section, and analyze different situations, such as... Figure 3 As shown:

[0057] The signal ahead is an entry signal. If the current illuminated light is red, yellow, double yellow, flashing yellow, or guide white, then the signal in the current section should be illuminated with a yellow light; if the current illuminated light is green-yellow or green, then the signal in the current section should be illuminated with a green light.

[0058] The signal ahead is a section signal. If the current illuminated light is green-yellow or green, the current section signal should be green; if the current illuminated light is yellow, the current section signal should be green-yellow; if the current illuminated light is red, the current section signal should be yellow.

[0059] If the preceding signal is a warning signal, search for the preceding signal again. If found, determine the type of the found preceding signal; otherwise, end the search.

[0060] Obtain the filament relay current (1DJ current or 2DJ current) and distributor voltage and status of signal light X in the section before and after the light goes out. Accurate fault location is achieved by analyzing changes in the filament relay current in conjunction with changes in the distributor voltage or status. Determining the cause of abnormal light outages involves flow rate analysis, such as... Figure 2 As shown, it includes the following steps:

[0061] Step S201: Based on the filament relay current and junction box voltage and status of the signal lights in the section before and after the lights are turned off, determine the change in the filament relay current before and after the lights are turned off. If a current greater than 500mA appears after the lights are turned off, the fault cause of the abnormal lights being turned off is determined to be a short circuit in the circuit; if a current less than 5mA appears after the lights are turned off, the fault cause of the abnormal lights being turned off is determined to be an open circuit on the outdoor secondary side; otherwise, proceed to step S202.

[0062] Step S202: Determine the voltage or status of the distribution panel. If no corresponding data is collected, the cause of the abnormal light extinguishing is determined to be an open circuit on the primary side from indoor to outdoor. If the voltage of the distribution panel is greater than 80V or the status of the distribution panel is faulty, the cause of the abnormal light extinguishing is determined to be an open circuit on the primary side. Otherwise, the cause of the abnormal light extinguishing is determined to be an open circuit indoors.

[0063] 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.

[0064] 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.

[0065] The processing unit executes the various methods and processes described above, such as methods S101-S106 and S201-S202. For example, in some embodiments, methods S101-S106 and S201-S202 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 S101-S106 and S201-S202 described above may be performed. Alternatively, in other embodiments, the CPU may be configured to execute methods S101-S106 and S201-S202 by any other suitable means (e.g., by means of firmware).

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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 determining abnormal light extinguishing of a section signal, characterized in that, This method is based on real-time acquisition of information from section signals and forward signals, and includes the following steps: Step S101: After the position of the signal light in the section changes, the light is turned off. After a set time, proceed to step S102. Step S102: Determine whether the running direction of the train in the section has changed. If yes, it is considered to be a normal light-off and the process ends; otherwise, proceed to step S103. Step S103: Determine if the track is occupied. If yes, the signal light for the current section will turn red; otherwise, proceed to step S104. Step S104: Determine the type of the signal ahead. If it is a section signal or an entry signal, and the signal light is displayed normally and continues for the set time, proceed to step S105. If it is a warning signal, determine whether the signal ahead of the warning signal has been found. If found, proceed to step S104; otherwise, end. Step S105: Determine the position of the signal that should be lit in the current section based on the type of signal ahead and the position of the lit light; Step S106 involves determining the cause of abnormal lamp extinguishing based on the filament relay current, distribution panel voltage, and status before and after the lamp extinguishing time. This includes the following steps: Step S201: Based on the filament relay current and junction box voltage and status of the signal lights in the current section before and after the lights are turned off, determine the change in the filament relay current before and after the lights are turned off. If a current greater than A appears after the lights are turned off, the fault cause of the abnormal lights being turned off is determined to be a short circuit in the circuit; if a current less than B appears after the lights are turned off, the fault cause of the abnormal lights being turned off is determined to be an open circuit on the outdoor secondary side; otherwise, proceed to step S202. Step S202: Determine the voltage or status of the distribution panel. If no corresponding data is collected, the cause of the abnormal light extinguishing is determined to be an open circuit on the primary side from indoor to outdoor. If the voltage of the distribution panel is greater than C or the status of the distribution panel is faulty, the cause of the abnormal light extinguishing is determined to be an open circuit on the primary side. Otherwise, the cause of the abnormal light extinguishing is determined to be an open circuit indoors.

2. The method for determining abnormal light extinguishing of a section signal according to claim 1, characterized in that, The information of the section signal and the forward signal includes lamp position information, filament relay current, forward signal type, junction box voltage, and junction box status.

3. The method for determining abnormal light extinguishing of a section signal according to claim 1, characterized in that, The types of forward signals include section signals, station entry signals, and advance signals.

4. The method for determining abnormal light extinguishing of a section signal according to claim 1, characterized in that, In step S105, determining the illuminated light positions of the current section signal based on the type of the preceding signal and the position of the illuminated light includes the following situations: The signal ahead is an entry signal; determine which lights should be on in the current section. The signal ahead is a section signal; determine which lights should be on in the current section signal. And the determination of which lights in the current section should be lit if the preceding signal is a warning signal.

5. The method for determining abnormal light extinguishing of a section signal according to claim 4, characterized in that, The aforementioned forward signal type is an entry signal. The specific determination of the light positions that should be illuminated by the current signal in the current section is as follows: If the illuminated light position is red, yellow, double yellow, flashing yellow, or guiding white, then the current section signal should illuminate yellow; If the illuminated light position is green-yellow or green, the current signal light in the section should be green.

6. The method for determining abnormal light extinguishing of a section signal according to claim 4, characterized in that, The aforementioned forward signal type is a section signal, and the specific determination of the light position that the current section signal should illuminate is as follows: If the illuminated light position is green-yellow or green, the current signal light in the section should be green; If the illuminated light is yellow, the signal light for the current section should be green-yellow. If the indicator light is red, the signal light for the current section should be yellow.

7. The method for determining abnormal light extinguishing of a section signal according to claim 4, characterized in that, The aforementioned forward signal type is a warning signal. The specific determination of the signal positions that should be illuminated in the current section is as follows: If the preceding signal is a warning signal, locate the preceding signal. If the preceding signal is found, determine the signal positions that should be lit in the current section based on the type of the found preceding signal; otherwise, end the process.

8. 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 7.

9. 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 7.

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