Multiplexing fiber channel fault positioning method, system and equipment based on multi-terminal alarm

Abstract

The invention discloses a multiplexing fiber channel fault positioning method, system and equipment based on multi-terminal alarm, and the method comprises the steps: collecting first information in a multiplexing fiber channel through a first interface device, uploading the first information to a first system, carrying out the time synchronization processing, and enabling the first information to comprise optical port and electric port information; generating a light alarm and an electric alarm in a binary state based on the first information, and forming a state vector; inputting the state vector into a preset fault positioning relation table to determine a preliminary fault section; when the initial fault section comprises the OPGW section, executing a multi-level fault judgment process, including sequentially executing communication network management performance parameter judgment, optical power difference judgment and multi-source data fusion judgment, and dynamically correcting the weight based on a historical sample; and outputting the finally determined fault section information to the first system for graphical display, and triggering operation and maintenance order sending. Therefore, the method provided by the invention can realize rapid and accurate positioning of the fault of the multiplexing channel, reduce misjudgment and improve operation and maintenance efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of line fiber differential protection of multiplexed fiber channel, and particularly relates to a multiplexed fiber channel fault positioning method, system and device based on multi-end alarm. BACKGROUND

[0002] At present, line fiber differential protection generally relies on multiplexed fiber channel to realize bidirectional transmission of protection information. The channel is usually composed of multiplexing / interface equipment (such as protection interface device, Synchronous Digital Hierarchy (SDH), Optical fiber composite overhead ground wire (OPGW), wavelength division equipment, E1 interface (also known as 2M interface), etc.) at the station end, intra-office wiring and jumper fiber, optical module, and OPGW cable section between stations. To support operation and maintenance monitoring, the multiplexing / interface equipment generally provides optical port alarm (such as low light alarm), electric control alarm (such as E1 frame step-out, Alarm Indication Signal (AIS)), and performance indicators such as Bit Error Ratio (BER), block error rate, frame loss rate, and Signal-to-noise Ratio (SNR), and collects and threshold alarms through the vendor network management system. In some scenarios, key alarms are sent to the integrated automation system and the protection signaling system in a hard-wired or communication manner for display and operation linkage. The existing positioning methods are mostly based on the correlation matching and experience rules of two-end alarms. For example, according to the combination relationship of two-end optical / electric port alarms, performance threshold out-of-limit conditions, or received light power comparison, the fault is roughly attributed to “in-station equipment / wiring”, “relay equipment / multiplexing section”, or “OPGW cable section” and the like. When conditions are met, remote loopback, bit error test, or offline / online Optical Time-Domain Reflectometer (OTDR) and other means are also used for further review.

[0003] However, the above prior art has many limitations in engineering applications: first, the protection interface device only provides indistinguishable types of alarm hard nodes or a small number of discrete alarms, which is difficult to accurately distinguish the optical port / electrical port and their combination state from the alarm type and port granularity, resulting in insufficient basis for section determination; second, the time source and upload path of multi-vendor equipment are not unified, the alarm time is deviated, and in the ring network / switching scene, short-time false alarms are easily generated, the synchronization and reliability of cross-end association are insufficient, and multiple candidate sections are easily formed, which need manual decision; third, relying on a single performance threshold (such as BER threshold) or simple received optical power threshold and differential comparison, it is not sensitive to boundary and intermittent defects caused by fiber microbending, fusion loss fluctuation, optical power automatic gain / equalization, etc., and it is difficult to effectively distinguish OPGW segment and equipment segment abnormalities, with high risk of misjudgment and omission; fourth, the existing alarm association rules are mostly statically configured, which is difficult to adapt to different topologies and operating environments, and lacks adaptive correction ability for historical samples; fifth, the linkage degree of positioning results with the integrated automation system and the protection system is limited, and manual summary and secondary analysis are often needed, the positioning closed loop and the automation degree of operation and maintenance dispatching are insufficient, affecting the rapid disposal and operation and maintenance efficiency of faults. The above problems make it difficult to accurately and timely locate the fault section of the multiplex optical fiber channel, especially when OPGW is involved.

[0004] Therefore, how to realize rapid and accurate positioning of faults in the multiplex optical fiber channel and reduce misjudgment and improve operation and maintenance efficiency has become a problem to be solved. SUMMARY

[0005] The application provides a multiplex optical fiber channel fault positioning method based on a multi-end alarm state table, which can realize rapid and accurate positioning of faults in the multiplex optical fiber channel, reduce misjudgment, and improve operation and maintenance efficiency. The technical scheme is as follows: In a first aspect, a multiplex optical fiber channel fault positioning method based on multi-end alarms is provided, which includes the following steps: Step one: collecting first information in the multiplex optical fiber channel through a first interface device, and uploading the first information to a first system, wherein the first system includes an integrated automation system and a protection system, the first interface device is connected to a line protection device and a communication interface device in the multiplex optical fiber channel, and the first information includes optical port information and electrical port information of the line protection device, and optical port information and electrical port information of the communication interface device; Step two: time synchronization processing of the first interface device and the first system based on a time synchronization protocol to ensure that the first information has a unified timestamp; Step three: generating binary-state optical alarms and electrical alarms based on the first information, forming a state vector, which indicates the running state of the line protection device and the communication interface device; Step four: inputting the state vector into a preset fault location relationship table to determine a preliminary fault section, the fault location relationship table defining a one-to-one mapping relationship between the state vector and the fault section in the multiplexed fiber channel; Step five: when the preliminary fault section includes an OPGW section, performing a multi-level fault discrimination process to obtain an accurate fault section, wherein if the accurate fault section is the OPGW section, it is confirmed that the OPGW section is faulty, otherwise, the OPGW section is excluded from the fault, the fault discrimination process being composed of communication network management performance parameter discrimination, optical power difference discrimination, and multi-source data fusion discrimination in sequence; Step six: sending the final determined fault section information to the first system for display.

[0006] In combination with the first aspect, the state vector includes: an optical alarm, an electrical alarm, an optical alarm, an electrical alarm, an optical alarm, an electrical alarm, an optical alarm, and an electrical alarm, wherein the multiplexed fiber channel has a transformer substation at both ends, the line protection device in the first end transformer substation, the line protection device in the second end transformer substation, the communication interface device in the first end transformer substation, the communication interface device in the second end transformer substation.

[0007] In combination with the first aspect, in the previous embodiment, the multiplexed fiber channel includes a first section, a second section, a third section, a fourth section, and the OPGW section, in the fault location relationship table, the one-to-one mapping relationship between the state vector and the fault section in the multiplexed fiber channel specifically includes: when the state vector indicates that the optical alarm or the electrical alarm or the optical alarm or the electrical alarm, the multiplexed fiber channel is faulty, and the running state of the and the indicates the fault interval: if the optical alarm is indicated, the optical alarm is not indicated, the fault interval is the first section; if the optical alarm is not indicated, the optical alarm is indicated, the fault interval is the second section; if the electrical alarm is indicated, the electrical alarm, the fault interval is the third section or the OPGW section; if the electrical alarm is not indicated, the fault interval is the fourth section or the OPGW section. electrical alarm, indicating that the fault interval is the fourth section or the OPGW section. electrical alarm, the fault interval is the third section or the OPGW section; if the electrical alarm is not indicated, the fault interval is the fourth section or the OPGW section.

[0008] In combination with the first aspect, the communication network management performance parameter judgment includes: comparing the communication network management performance parameter with a preset first threshold value to determine whether it exceeds the first threshold value limit range, if it exceeds the first threshold value limit range, it is determined that the accurate fault section includes the OPGW section, wherein the communication network management performance parameter is a performance index related to the OPGW section, including bit error rate , block error rate, frame error rate and signal-to-noise ratio .

[0009] In combination with the first aspect, in the previous embodiment, the optical power difference judgment includes: calculating the optical power difference value at both ends of the multiplexing optical fiber channel based on the first information , if the exceeds a preset second threshold value, it is determined that the accurate fault section includes the OPGW section.

[0010] In combination with the first aspect, in the previous embodiment, the multi-source data fusion judgment includes: when the preliminary fault section includes the OPGW section, and the communication network management performance parameter judgment and the optical power difference judgment cannot determine that the accurate fault section includes the OPGW section, the multi-source data fusion judgment is performed; based on the , the , the and the , a comprehensive score function is calculated, if the is greater than or equal to a preset third threshold value, it is determined that the accurate fault section includes the OPGW section, if the is less than the third threshold value, it is determined that the accurate fault section does not include the OPGW section, and the calculation formula of the .

[0011] Among them, , , , are the weight coefficients of the , the , the , and the , respectively.

[0012] In combination with the first aspect, in the previous embodiment, the , the , the , the value is dynamically determined by a multivariate regression method based on historical data, specifically including: obtaining a plurality of confirmed OPGW section fault and non-fault sample data, and normalizing the feature parameters in the , and then establishing a regression model :

[0013] wherein, , , , , the , the , the , the , is a residual term for representing the deviation between the model prediction value and the actual result, and the , the , the , the is the optimal coefficient solved by the least square method, and is dynamically corrected based on the obtained sample data.

[0014] In combination with the first aspect, in some embodiments of the first aspect, the finally determined fault section information is displayed in a graphical manner in the first system, and indicates that the first system automatically generates an operation and maintenance work order to be distributed to an operation and maintenance personnel.

[0015] It should be noted that the features in the various embodiments of the first aspect can be combined with each other without conflict, and any combination of features in different embodiments is also within the protection scope of the present application, that is, the above-described multiple embodiments can also be combined arbitrarily according to actual needs.

[0016] Secondly, a multiplex optical fiber channel fault positioning system based on multi-end alarm is provided, comprising: A first interface device is arranged in a relay protection room and a communication room, used to collect first information of a plurality of endpoints in a multiplex optical fiber channel, and upload the first information to a first system, wherein the first system includes an integrated automation system and a signal protection system, the first interface device is connected with a line protection device and a communication interface device in the multiplex optical fiber channel, and the first information includes optical port information and electrical port information of the line protection device, and optical port information and electrical port information of the communication interface device; A time synchronization module is used to perform time synchronization processing on the first interface device and the first system based on a time synchronization protocol, to ensure consistency in the first interface device and the first system; The state vector processing module is configured to generate optical and electrical alarms of a binary state by using the first information, and form a state vector indicating the operating states of the line protection device and the communication interface device. The fault location relationship table module is configured to input the state vector into a preset fault location relationship table to determine a preliminary fault section, and the fault location relationship table defines a one-to-one mapping relationship between the state vector and the fault section in the multiplexing optical fiber channel. The sequential decision module is configured to execute a multi-level fault discrimination process to obtain an accurate fault section, and determine whether the OPGW section belongs to the accurate fault section, and the fault discrimination process is sequentially composed of a communication network management performance parameter discrimination, an optical power difference discrimination, and a multi-source data fusion discrimination. The data fusion module is configured to calculate a comprehensive score function and dynamically correct a weight coefficient of a feature parameter in the multi-source data fusion discrimination. The output module is configured to send the finally determined fault section information to the first system for display, and instruct the first system to automatically generate an operation and maintenance work order and distribute the operation and maintenance work order to an operation and maintenance personnel.

[0017] In a third aspect, a computer device is provided, including one or more memories, one or more processors; the memory is coupled with the one or more processors, the memory is used to store computer program codes, the computer program codes include computer instructions, and the one or more processors invoke the computer instructions, so that the computer device implements the method in the first aspect or any of the implementation manners of the first aspect.

[0018] In a fourth aspect, a computer readable storage medium is provided, and the computer readable storage medium stores computer instructions, and the computer instructions are executed by a processor to implement the method in the first aspect or any of the implementation manners of the first aspect.

[0019] In a fifth aspect, a chip is provided, and the chip is applied to a computer, and the chip includes one or more processors, and the processor is used to invoke computer instructions to make the computer execute the method in the first aspect or any of the implementation manners of the first aspect.

[0020] In the embodiments of the present application, the present application discloses a multiplexed fiber channel fault positioning method, system and device based on multi-end alarm, the method provided by the present application comprises the following steps: collecting first information in a multiplexed fiber channel through a first interface device and uploading the first information to a first system, and performing time synchronization processing, wherein the first information comprises optical port and electrical port information; generating optical alarm and electrical alarm with binary state based on the first information, forming a state vector; inputting the state vector into a preset fault positioning relationship table to determine a preliminary fault section; when the preliminary fault section comprises an OPGW section, performing a multi-level fault discrimination process, comprising sequentially performing communication network management performance parameter discrimination, optical power difference discrimination, and multi-source data fusion discrimination, and dynamically correcting the weight based on historical samples; outputting the finally determined fault section information to the first system for graphical display and triggering operation and maintenance order allocation. In this way, the method provided by the present application can realize rapid and accurate positioning of multiplexed channel faults, reduce misjudgment, and improve operation and maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 is a schematic diagram of a multiplexed fiber channel fault positioning method system architecture based on multi-end alarm provided by the embodiments of the present application; Figure 2 is a method flowchart of multiplexed fiber channel fault positioning based on multi-end alarm provided by the embodiments of the present application; Figure 3 is a multiplexed fiber channel structure and fault section division schematic diagram based on multi-end alarm provided by the embodiments of the present application; Figure 4 is a multi-level fault discrimination flowchart provided by the embodiments of the present application; Figure 5 is a module schematic diagram of a multiplexed fiber channel fault positioning system based on multi-end alarm provided by the embodiments of the present application; Figure 6 is a hardware structure schematic diagram of a computer device provided by the embodiments of the present application. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0024] It should be understood that "multiple" mentioned in the present application refers to two or more than two. In the description of the present application, unless otherwise specified, " / " represents the meaning of or, for example, A / B can represent A or B; "and / or" herein is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can represent: A exists alone, A and B exist together, and B exists alone. In addition, in order to clearly describe the technical solutions of the present application, "first", "second" and the like are used to distinguish the same items or similar items with basically the same function and role. Those skilled in the art can understand that "first", "second" and the like do not limit the quantity and execution order, and "first", "second" and the like do not necessarily mean different.

[0025] The phrase "one embodiment" or "some embodiments" appearing in the present application means that the specific features, structures or characteristics described in the embodiment are included in one or more embodiments of the present application. Therefore, the phrases "in one embodiment", "in some embodiments", "in other some embodiments", "in other some embodiments" appearing in the present application are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized. In addition, the terms "include", "contain", "have" and their variants mean "include but not limited to", unless otherwise specifically emphasized.

[0026] The embodiments of the present application provide a multiplexed fiber channel fault positioning method, system and device driven by a multi-end alarm state table, which comprises the following steps: Step one: collecting first information in the multiplexed fiber channel through a first interface device, uploading the first information to a first system, wherein the first system comprises a comprehensive automation system and a signal protection system, the first interface device is connected with a line protection device and a communication interface device in the multiplexed fiber channel, and the first information comprises optical port information and electrical port information of the line protection device, and optical port information and electrical port information of the communication interface device.

[0027] Step two: performing time synchronization processing on the first interface device and the first system based on a time synchronization protocol, to ensure consistency in the first interface device and the first system.

[0028] Step three: generating optical alarm and electrical alarm of binary state based on the first information, forming a state vector, which indicates the running state of the line protection device and the communication interface device.

[0029] Step four: inputting the state vector into a preset fault location relationship table to determine a preliminary fault section, the fault location relationship table defining a one-to-one mapping relationship between the state vector and the fault section in the multiplexed fiber channel.

[0030] Step five: when the preliminary fault section includes an OPGW section, performing a multi-level fault discrimination process to obtain an accurate fault section, wherein if the accurate fault section is the OPGW section, confirming the OPGW section fault, otherwise, excluding the OPGW section fault, the fault discrimination process being composed of communication network management performance parameter discrimination, optical power difference discrimination, and multi-source data fusion discrimination in sequence.

[0031] Step six: sending the finally determined fault section information to the first system for display. In this way, the method can realize rapid and accurate positioning of the multiplexed fiber channel fault, reduce misjudgment, and improve operation and maintenance efficiency.

[0032] The multiplexed fiber channel fault location method based on the multi-end alarm state table provided in the application is described below through three embodiments. Embodiment one describes a system architecture of the multiplexed fiber channel fault location method based on multi-end alarms, embodiment two describes a method process of implementing the multiplexed fiber channel fault location based on multi-end alarms, and embodiment three describes a system module structure and a computer device hardware structure of implementing the multiplexed fiber channel fault location method based on multi-end alarms.

[0033] Embodiment one Figure 1 is a schematic diagram of a system architecture of a multiplexed fiber channel fault location method based on multi-end alarms provided in the embodiments of the application. As shown in Figure 1 , the system architecture of the multiplexed fiber channel fault location method based on multi-end alarms includes a fault section diagnosis device 100, a first interface device 200, a multiplexed fiber channel 300, and a first system 400. The fault section diagnosis device 100 includes a state vector generation module, a preliminary fault section judgment module, an accurate fault section judgment module, and a final fault section determination module. The first interface device 200 includes a synchronization module. The multiplexed fiber channel 300 includes a line protection device, a communication interface device, a digital distribution frame (DDF), an SDH, and an OPGW. The DDF and the SDH can be connected together to form a DDF / SDH. The first system 400 includes a background server 410, which includes a synchronization module and a fault section display and operation and maintenance dispatching module.

[0034] In the embodiment of the present application, the fault section diagnosis device 100 obtains the first information in the multiplex optical fiber channel 300 through the first interface device 200, and analyzes the accurate section of the multiplex optical fiber channel 300 through the first information, and indicates the first system 400 to display the fault section and automatically dispatch a maintenance work order.

[0035] Specifically, the state vector generation module generates the optical alarm and the electrical alarm of the binary state based on the first information, and forms a state vector; the fault section diagnosis device 100 is preconfigured with a fault positioning relationship table of the multiplex optical fiber channel 300, and the preliminary fault section judgment module determines a preliminary fault section based on the state vector and the fault positioning relationship table, wherein when the preliminary fault section does not include the OPGW section, the fault section diagnosis device 100 can directly determine the fault section through the final fault section determination module, and when the preliminary fault section includes the OPGW section, the fault section diagnosis device 100 needs to further judge through the accurate fault section judgment module; the accurate fault section judgment module finally determines whether the fault section includes the OPGW section by executing a multi-level fault discrimination process, wherein the fault discrimination process includes sequentially executing the communication network performance parameter discrimination, the optical power difference discrimination, and the multi-source data fusion discrimination; and the final fault section determination module outputs the finally determined fault section information to the first system 400 for graphical display and triggers the operation and maintenance order.

[0036] In the embodiment of the present application, when the first interface device 200 obtains the first information in the multiplex optical fiber channel 300, the obtained first information needs to be synchronously sent to the background server 410 in the first system 400. At the same time, because the first interface device 200 needs to obtain information from two different devices (i.e. the line protection device and the communication interface device) in the multiplex optical fiber channel 300, in order to avoid that the information between different devices affects the subsequent judgment of the fault section because of different acquisition times, the first interface device 200 synchronizes the time with the background server 410 in the first system 400 through the synchronization module, and adds a time stamp for the first information from different devices.

[0037] In the embodiment of the present application, the first system includes an integrated automation system and a signal protection system, and the first information includes the optical port information and the electrical port information of the line protection device, and the optical port information and the electrical port information of the communication interface device, wherein the optical port information can include the light emitting power and the light receiving power of the optical port, and the electrical port information can include the bit error rate, the block error rate, the frame loss rate, the device self-checking state, etc. of the digital port.

[0038] In the embodiment of the present application, the line protection device in the multiplexing fiber channel 300 is deployed in the relay protection room, the communication interface device is deployed in the communication room, and the first interface device 200 is deployed in the relay protection room and the communication room, and the first information can be obtained from the line protection device and the communication interface device. Specifically, one or more first interface devices 200 can be deployed in the relay protection room, and one or more first interface devices 200 can be deployed in the communication room, and the information obtained by each first interface device 200 can be integrated to obtain the first information.

[0039] In the embodiment of the present application, the devices and modules in the multiplexing fiber channel 300 have a communication connection for communication transmission. The multiplexing fiber channel 300 can include a line structure symmetric to both ends of the device, that is, the signal is input at one end of the multiplexing fiber channel 300, sequentially passes through the line protection device, the communication interface device, the DDF and the SDH, and then sequentially enters the SDH, the DDF, the communication interface device and the line protection device from the other end of the multiplexing fiber channel 300 through the OPGW, and the specific multiplexing fiber channel structure can be referred to in the subsequent description. Figure 4 , which will not be described here.

[0040] In the embodiment of the present application, Figure 1 The multiplexing fiber channel fault locating method system architecture based on multi-end alarm takes the fault section diagnosis device 100, the first interface device 200, the multiplexing fiber channel 300 and the first system 400 as an example, and in actual application, the multiplexing fiber channel fault locating method system architecture based on multi-end alarm can have more or fewer devices. For example, the modules in the fault section diagnosis device 100 can be located in the first interface device 200, and the execution method of the fault section diagnosis device 100 is executed by the first interface device 200; for another example, the modules in the fault section diagnosis device 100 can also be located in the first system 400, and the execution method of the fault section diagnosis device 100 is executed by the first system 400, at this time, the multiplexing fiber channel fault locating method system architecture based on multi-end alarm only needs the first interface device 200, the multiplexing fiber channel 300 and the first system 400, and the specific device type included in the multiplexing fiber channel fault locating method system architecture based on multi-end alarm is not limited in the embodiment of the present application. In the following introduction process, the multiplexing fiber channel fault locating method based on multi-end alarm involved in the embodiment of the present application can be applied to Figure 1 the multiplexing fiber channel fault locating method system architecture based on multi-end alarm shown in the figure.

[0041] It can be understood that the function division between the modules shown in the embodiments of the present application is only illustrative and does not constitute a function limitation of the multi-end alarm multiplexed fiber channel fault locating method system architecture. In other embodiments of the present application, the multi-end alarm multiplexed fiber channel fault locating method system architecture can also be implemented in a manner of different modules or a combination of multiple modules to realize the functions in the multi-end alarm multiplexed fiber channel fault locating method system architecture.

[0042] Embodiment two Figure 2 is a flowchart of a multi-end alarm multiplexed fiber channel fault locating method provided by the embodiments of the present application, applied to the multi-end alarm multiplexed fiber channel fault locating method system architecture as shown in Figure 1 The multi-end alarm multiplexed fiber channel fault locating method system architecture is executed by the fault section diagnosis device 100, and specifically includes the following steps. S101. Obtain first information synchronized with a first system.

[0043] In the embodiments of the present application, the fault section diagnosis device collects first information in the multiplexed fiber channel through a first interface device, and the first interface device uploads the first information to a first system, wherein the first system includes an integrated automation system and a signal protection system, the first interface device is connected to a line protection device and a communication interface device in the multiplexed fiber channel, and the first information includes optical port information and electrical port information of the line protection device, and optical port information and electrical port information of the communication interface device.

[0044] In the embodiments of the present application, in order to ensure the consistency of the information collected from multiple ends in time, a time synchronization protocol is executed between the first interface device and the background server, realizing time synchronization between the first interface device and the first system, and ensuring that all uploaded information has accurate and unified time stamps.

[0045] In the embodiments of the present application, the first interface device is deployed in a relay protection room and a communication machine room, and is used to detect the communication state of the line protection device and the communication interface device; the optical port information and the electrical port information in the first information specifically include but are not limited to: light emitting power of the optical port, light receiving power of the optical port, bit error rate, block error rate, frame loss rate of the 2M digital port, and self-checking state of the device.

[0046] S102. Generate optical alarms and electrical alarms based on the first information to form a state vector.

[0047] In the embodiment of the present application, the fault section diagnosis device generates optical alarm and electrical alarm of binary state based on the first information, and forms a state vector. Specifically, the fault section diagnosis device converts the optical port information and the electrical port information into binary alarm states according to a preset threshold or state definition. For example, when the received optical power of the optical port is lower than a preset optical threshold, the optical alarm is recorded, otherwise the optical normal is recorded; when an AIS signal is acquired or frame loss is occurred in the 2M digital port, the electrical alarm is recorded, otherwise the electrical normal is recorded; the optical end alarm state and the electrical end alarm state in the line protection device and the communication interface device are sequentially acquired, and are combined to form a state vector, which is used to indicate the running state of the line protection device and the communication interface device.

[0048] In the embodiment of the present application, the state vector is formed by Figure 3 Taking a multiplexing fiber channel structure based on multi-end alarm and a fault section division schematic diagram as an example, the specific process of forming the state vector is described as follows: Figure 3 As shown in the figure, the multiplexing fiber channel has a substation at both ends, which are denoted as a first end substation and a second end substation, is a line protection device in the first end substation (i.e., a fiber phase current differential protection device in the first end substation), is a line protection device in the second end substation (i.e., a fiber phase current differential protection device in the second end substation), is a communication interface device in the first end substation (i.e., a protection communication interface device in the first end substation), is a communication interface device in the second end substation (i.e., a protection communication interface device in the second end substation). The line protection device is located in a relay protection room, the first interface device can acquire optical alarm and electrical alarm information of multiple ports of the line protection device, which is used to reflect the running state of the fiber channel at the line protection device side; the communication interface device is deployed in a communication room and an SDH network, and is connected with a DDF / SDH access section, the first interface device can acquire optical alarm information and electrical alarm information of ports adjacent to an OPGW section through the communication interface device, so as to acquire the running state of the communication room and the OPGW section.

[0049] For example, by acquiring and combining the optical port alarm state and the electrical port alarm state of the four devices, , , , a state vector can be formed, and the fault section can be quickly located according to a preset relationship table. Specifically, the optical alarm and the electrical alarm state of the above-mentioned ports are encoded to form an 8-bit state vector , which includes the following specific forms: =[ optical alarm, Electrical alarm, Light alarm, Electrical alarm, Light alarm, Electrical alarm, Light alarm, [Electrical Alarm]. The status bit corresponding to the occurrence of an alarm is recorded as the first value (e.g., 1), and the status bit when normal is recorded as the second value (e.g., 0).

[0050] S103. Determine the initial fault section based on the state vector and fault location relationship table.

[0051] In this embodiment of the application, the fault section diagnostic device will use the state vector The data is input into a pre-defined fault location table to obtain preliminary fault location results. This fault location table is the core logical judgment component, constructed based on expert experience and historical fault data, and it predefines different state vectors. The table establishes a one-to-one mapping between combinations and specific physical fault sections, allowing for a quick determination of the initial fault sections.

[0052] For example, with Figure 3 The diagram shown illustrates a multiplexed fiber optic channel structure and fault segment division based on multi-terminal alarms, as an example. Figure 3 As shown, the multiplexed fiber channel structure includes a first segment, a second segment, a third segment, a fourth segment, and an OPGW segment, wherein the first segment is... and The communication lines between them include line 1 and line 2, wherein line 1 is in The connection interface is an FX fiber optic interface. The connected interface is the receiver interface RX, indicating that the optical signal travels through line 1 from... Send to Similarly, Line 2 in The connected interface is RX, in The interface connected is FX, indicating that the optical signal travels through line 2 from... Send to The second section is and The communication lines between them include line 3 and line 4. The interface descriptions for lines 3 and 4 can be found in the previously mentioned lines 1 and 2, and will not be repeated here. The third segment is... The communication lines between the first substation and the DDF / SDH include lines 301 and 302; the fourth section is... The communication lines between the DDF / SDH in the second substation include lines 303 and 304; the OPGW section is communication line 305 connecting the DDF / SDH in the first and second substations. Specifically, the mapping relationship for determining the preliminary fault section based on the state vector and fault location table is as follows: When the state vector instruct Light alarm or Electrical alarm or Light alarm or An electrical alarm indicates a fault in the multiplexed fiber optic channel, requiring rerouting. and The operating status further indicates the fault range: If the instruction Light alarm, no indication Light alarm (i.e.) (Normal light) indicates The optical port received from The optical signal power is lower than the preset optical threshold, indicating Towards Line 1, which transmits optical signals, is faulty; the initial fault section is the first segment. If not indicated Light alarm (i.e.) (Light normal), indicating Light alarm indicates The optical port received from The optical signal power is lower than the preset optical threshold, indicating Towards Line 4, which transmits optical signals, is faulty; the initial fault section is the second segment. If the instruction Electrical alarm, no instruction Electrical alarm (i.e.) (Power is normal) indicates When the electrical port (i.e., the 2M digital port) receives an electrical signal from the DDF / SDH within the same substation, a frame synchronization failure or AIS signal occurs, indicating that the DDF / SDH should... A fault in the line transmitting electrical signals (such as line 301) or a fault in the OPGW section transmitting optical signals to the DDF / SDH of the first substation will result in the corresponding initial fault section being the third section or the OPGW section. If not indicated Electrical alarm (i.e.) (Power normal), indicator Electrical alarm indicates If the electrical port receives an electrical signal from a DDF / SDH within the same substation and experiences frame synchronization loss or an AIS signal, it indicates that the DDF / SDH should... The line (such as the line 304) transmitting the electrical signal fails, or the OPGW section transmitting the optical signal to the second end substation DDF / SDH fails, and the corresponding preliminary fault section is the fourth section or the OPGW section.

[0053] In some embodiments, and The multiple fault sections can also be indicated by the electrical alarm and the optical alarm together, wherein the electrical alarm and the optical alarm can be analyzed separately through the mapping relationship, and the analysis results of the electrical alarm and the optical alarm are combined to indicate the multiple fault sections. For example, when the state vector indicates that the multiplexed fiber channel fails, the optical alarm and the electrical alarm coexist, and the optical signal and the electrical signal are both normal, the preliminary fault section includes the first section and further includes the third section or the OPGW section.

[0054] S104. Determine whether the preliminary fault section includes the OPGW section.

[0055] In the embodiments of the present application, since the fault of the OPGW section is difficult to distinguish from the faults of the devices or the wiring on both sides under some alarm combinations, when the fault section diagnosis device obtains that the preliminary fault section may include the OPGW section, further data analysis is required to determine whether it is the OPGW section fault. If the fault section diagnosis device determines that the preliminary fault section includes the OPGW section, the subsequent S105 step is executed for detailed analysis; if the fault section diagnosis device determines that the preliminary fault section does not include the OPGW section, the subsequent S107-1 step is executed to determine other fault sections.

[0056] S105. Execute a multi-level fault judgment process to determine the accurate fault section.

[0057] In the embodiments of the present application, when the preliminary fault section may include the OPGW section, the fault section diagnosis device will execute a multi-level fault judgment process for fine fault section judgment. The multi-level fault judgment process is sequentially executed and consists of communication network management performance parameter judgment, optical power difference judgment, and multi-source data fusion judgment, which are used to determine the accurate fault section.

[0058] In the embodiments of the present application, the communication network performance parameter discrimination includes: the fault section diagnosis device acquires performance indicators (i.e., communication network performance parameters) related to the OPGW section, including the bit error rate BER, the block error rate, the frame error rate F, and the signal-to-noise ratio SNR, and compares the above indicators with a preset first threshold to determine whether they exceed the range limited by the first threshold. The first threshold is a preset communication network performance parameter. If any of the above performance indicators exceeds the range limited by the first threshold, the accurate fault section includes the OPGW section, and the subsequent fault discrimination process can be exited. If the performance indicators related to the OPGW section are all within the range limited by the first threshold, it is determined that the accurate fault section may not include the OPGW section, and the subsequent fault discrimination process needs to be performed.

[0059] In the embodiments of the present application, the optical power difference discrimination includes: the fault section diagnosis device calculates the received optical power difference between the two ends of the multiplexing optical fiber channel based on the first information acquired in the foregoing S101 step . If the difference exceeds a preset second threshold, it indicates that there may be abnormal attenuation in the OPGW section, and the accurate fault section includes the OPGW section, and the subsequent fault discrimination process can be exited. If the difference does not exceed the preset second threshold, it is determined that the accurate fault section may not include the OPGW section, and the subsequent fault discrimination process needs to be performed. The second threshold can be determined based on the received optical power difference when the OPGW section has abnormal attenuation.

[0060] In the embodiments of the present application, when the communication network performance parameter discrimination and the optical power difference discrimination both fail to confirm that the accurate fault section includes the OPGW section, it may correspond to a difficult scenario of the OPGW section fault phenomenon being not obvious or intermittent fault. Then, the fault section diagnosis device performs multi-source data fusion discrimination, which quantifies the health degree of the OPGW section through a comprehensive scoring function .

[0061] Specifically, based on the BER, , the frame error rate, and the SNR, if the comprehensive score is greater than or equal to a preset third threshold, it is determined that the accurate fault section includes the OPGW section. If the comprehensive score is less than the third threshold, it is determined that the accurate fault section does not include the OPGW section. The third threshold can be determined based on the health degree when the OPGW section fault phenomenon is not obvious or intermittent fault. The calculation formula of the comprehensive score is as follows:

[0062] Among them, , ​, , The weight coefficients of BER, frame error rate F and SNR are in turn 0.4, 0.3 and 0.3.

[0063] In some embodiments, the fault section diagnosis device can dynamically determine and correct the weight coefficients (i.e. 0.4, 0.3 and 0.3) based on historical data, in order to improve the accuracy and adaptability of the discrimination.

[0064] S106. Determine whether the accurate fault section is an OPGW section.

[0065] In the embodiments of the present application, the fault section diagnosis device determines whether the accurate fault section determined in the S105 step is an OPGW section. If the accurate fault section is an OPGW section, the subsequent S107-2 step is executed, otherwise, the subsequent S107-1 step is executed.

[0066] S107-1. Exclude OPGW section fault and determine other section fault.

[0067] In the embodiments of the present application, the fault section diagnosis device determines that the fault section of the multiplexing optical fiber channel does not include the OPGW section, and records the information confirming the fault section.

[0068] S107-2. Confirm OPGW section fault.

[0069] In the embodiments of the present application, the fault section diagnosis device determines that the fault section of the multiplexing optical fiber channel is an OPGW section, and records the fault section information of the OPGW section.

[0070] S108. Upload the fault section information to the first system and instruct the first system to display the fault section and dispatch a maintenance work order.

[0071] In the embodiments of the present application, the fault section diagnosis device can send the fault section information to the first system for detection and display in real time, no matter whether the fault section information is obtained directly by the fault positioning relationship table or is finally confirmed through the multi-level fault judgment process. The fault section positioning result is displayed in a graphical manner in the first system, the fault section can be highlighted on the simulated line topology graph, and a maintenance work order can be automatically generated and dispatched to the maintenance personnel, so as to realize the closed-loop management of fault positioning and operation and maintenance disposal in the multiplexing optical fiber channel, and improve the operation and maintenance efficiency.

[0072] ​​​​​​Based on the method described in steps S101-S108 above, the fault section diagnosis device collects optical, electrical, and performance information through the first interface device and synchronizes it with the first system; it obtains a state vector composed of optical alarms and electrical alarms, inputs it into a preset relationship table to obtain a preliminary fault section; when the preliminary fault section includes the OPGW section, it executes a multi-level fault discrimination process to obtain the precise fault section; and it outputs the finally confirmed fault section information to the first system for graphical display and triggers an operation and maintenance dispatch order. Thus, this method achieves the following beneficial effects: 1. Based on the combination of optical alarms and electrical alarms, and a multi-level fault diagnosis process, it is possible to effectively distinguish the OPGW segment in the multiplexed fiber channel from other segments, thereby improving the accuracy of fault diagnosis; 2. Based on the time synchronization protocol, it synchronizes with the first system, improving the reliability of cross-end association of optical alarms and electrical alarms from different devices; 3. Based on the joint analysis and display of the fault section diagnostic device and the first system, closed-loop management of fault location and operation and maintenance in the multiplexed fiber optic channel is realized, thereby improving operation and maintenance efficiency.

[0073] It should be understood that, as mentioned above Figure 2 The steps in the flowcharts are shown sequentially as indicated by the arrows, but these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise explicitly stated herein, there is no strict order in which these steps are performed; they can be executed in other orders. Furthermore, as mentioned above... Figure 2 The flowchart may include at least some steps or stages. These steps or stages are not necessarily completed at the same time, but may be executed at different times. The execution order of these steps or stages is not necessarily sequential, but may be executed in turn or alternately with other steps or at least some of the steps or stages in other steps.

[0074] Figure 3 This is a schematic diagram of a multiplexed fiber optic channel structure and fault segment division based on multi-terminal alarms provided in an embodiment of this application. For example... Figure 3 As shown, the multiplexed fiber optic channel has a first-end substation and a second-end substation located at both ends. , These are fiber optic phase-separated current differential protection devices (i.e. line protection devices) in the first and second substations, respectively. , These refer to the protection communication interface devices (i.e., communication interface devices) in the first and second substations, respectively. Figure 3 For a detailed description of the multiplexed fiber channel structure, please refer to the aforementioned Figure 2 Step S102 in the above will not be described in detail here.

[0075] In the embodiments of the present application, the multiplexing fiber channel structure includes a first section, a second section, a third section, a fourth section and an OPGW section, and the OPGW section is located between the first section and the second section. Figure 3 The specific description of different sections of the multiplexing fiber channel structure in the embodiments of the present application can refer to the S103 step in the foregoing Figure 2 , and will not be described here again.

[0076] Figure 4 is a multi-level fault judgment flowchart provided by the embodiments of the present application, which is used to describe the S105 step to the S107-2 step as shown in Figure 2 , and specifically includes: S201. Obtain the performance index related to the OPGW section.

[0077] In the embodiments of the present application, with reference to the S105 step in the foregoing Figure 2 , when the fault section diagnosis device judges that the preliminary fault section may include the OPGW section, the communication network management performance parameter judgment, the optical power difference judgment and the multi-source data fusion judgment are sequentially performed.

[0078] In the embodiments of the present application, the communication network management performance parameter judgment is first performed by the fault section diagnosis device, and the performance index related to the OPGW section needs to be obtained, including the BER, the block error rate, the frame error rate and the SNR. Among them, the performance index can be obtained by the first information obtained by the S101 step in the foregoing Figure 2 , or can be obtained by the system (such as the communication network management system) managing the communication multiplexing fiber channel.

[0079] S202. Judge whether the performance index exceeds the first threshold limit range.

[0080] In the embodiments of the present application, the fault section diagnosis device compares the performance index obtained in the S201 step with the preset first threshold, and judges whether it exceeds the range limited by the first threshold.

[0081] Exemplarily, the first threshold can include the BER threshold, the block error rate threshold, the frame error rate threshold and the SNR threshold, and the fault section diagnosis device sequentially judges whether the BER in the performance index is less than the BER threshold, whether the block error rate is less than the block error rate threshold, whether the frame error rate is less than the frame error rate threshold, and whether the SNR is greater than the SNR threshold.

[0082] In this embodiment of the application, if any of the above performance indicators exceeds the range of the first threshold limit, the precise fault segment includes the OPGW segment, and the fault identification process can be exited to execute the subsequent S206-1 step; if all the performance indicators related to the OPGW segment are within the range of the first threshold limit, it is determined that the precise fault segment may not include the OPGW segment, and the subsequent S203 step is executed.

[0083] S203. Determine whether the difference in optical power exceeds the second threshold.

[0084] In this embodiment of the application, the fault section diagnostic device is based on, for example, Figure 2 The first information obtained in step S101 is used to calculate the difference in received optical power at both ends of the multiplexed fiber channel. If the If the preset second threshold is exceeded, the precise faulty section includes the OPGW section, and the subsequent step S206-1 is executed; if the If the preset second threshold is not exceeded, it is determined that the precise faulty section may not include the OPGW section, and the subsequent step S204 is executed. The second threshold can be determined based on the difference in received optical power when abnormal attenuation occurs in the OPGW section.

[0085] S204. Calculate the overall health score of the OPGW section.

[0086] In this embodiment, the fault section diagnostic device performs multi-source data fusion discrimination, which is achieved through a comprehensive scoring function. Quantifying the health of OPGW segments, For the specific calculation formula, please refer to the above. Figure 2 The steps in S105 will not be repeated here.

[0087] In this embodiment of the application, the fault section diagnostic device aims to improve... The accuracy and adaptability of the discrimination can be improved by adjusting the weighting coefficients (i.e. , , , The method employs a multivariate regression approach based on historical data for dynamic determination and correction. Specifically, this includes acquiring multiple confirmed OPGW section fault and non-fault sample data, and then... After normalizing the feature parameters, a regression model is established. :

[0088] in, , , , the normalized BER, F and SNR, is a residual term, used to represent the deviation between the model prediction value and the actual result, is the optimal coefficient solved by the least square method, and is dynamically corrected based on the obtained sample data.

[0089] In some embodiments, the fault section diagnosis apparatus can periodically or triggeredly re-calculate the regression of the weight coefficient based on the accumulated new fault samples, so as to realize the dynamic correction of the comprehensive score function .

[0090] S205. determining whether the comprehensive score exceeds a third threshold value.

[0091] In the embodiments of the present application, the fault section diagnosis apparatus determines the accurate fault section determined in the S204 step, and judges whether it is an OPGW section. If the accurate fault section is an OPGW section, the subsequent S206-1 step is executed, otherwise, the subsequent S206-2 step is executed.

[0092] S206-1. confirming the OPGW section fault.

[0093] In the embodiments of the present application, the fault section diagnosis apparatus determines and records the fault section information of the OPGW section, which can also be referred to the S107-2 step in the foregoing Figure 2 , and will not be described here.

[0094] S206-2. excluding the OPGW section fault and determining other section fault.

[0095] In the embodiments of the present application, the fault section diagnosis apparatus determines and records the fault section information, which can also be referred to the S107-1 step in the foregoing Figure 2 , and will not be described here.

[0096] Based on the method as shown in Figure 4 , when the fault section diagnosis apparatus obtains the preliminary fault section including the OPGW section, a multi-level fault discrimination process is executed to obtain the accurate fault section, the multi-level fault discrimination process is composed of performance parameter discrimination, received optical power difference and multi-source data fusion arbitration in sequence, wherein the multi-source data fusion arbitration can also be dynamically corrected based on the historical samples. In this way, the method dynamically determines and corrects the weight coefficient in the comprehensive score function based on the adaptive correction ability of the historical samples, which can adapt to the topology and operating environment in different multiplex optical fiber channels, and improves the accuracy of the fault diagnosis of the multiplex optical fiber channel. ​​​​

[0097] Example 3 Figure 5 This is a schematic diagram of a multiplexed fiber optic channel fault location system based on multi-terminal alarms, provided in an embodiment of this application. Figure 5 As shown, the multiplexed fiber channel fault location system 500 based on multi-terminal alarms specifically includes the following devices and modules: The first interface device 200 is deployed in the relay protection room and the communication equipment room. It is used to collect first information from multiple endpoints in the multiplexed optical fiber channel and upload the first information to the first system. The first system includes an integrated automation system and a protection and communication system. The first interface device connects the line protection device and the communication interface device in the multiplexed optical fiber channel. The first information includes the optical port information and electrical port information of the line protection device, as well as the optical port information and electrical port information of the communication interface device.

[0098] The time synchronization module 502 is used to perform time synchronization processing on the first interface device and the first system based on the time synchronization protocol to ensure the consistency between the first interface device and the first system.

[0099] The state vector processing module 503 is used to generate binary optical alarms and electrical alarms through the first information, forming a state vector that indicates the operating status of the line protection device and the communication interface device.

[0100] The fault location table module 504 is used to input the state vector into a preset fault location table to determine the initial fault segment. The fault location table defines a one-to-one mapping relationship between the state vector and the fault segment in the multiplexed fiber optic channel.

[0101] The sequential decision module 505 is used to execute a multi-level fault identification process to obtain the precise fault section and determine whether the fiber optic composite overhead ground wire (OPGW) section belongs to the precise fault section. The fault identification process consists of communication network management performance parameter identification, optical power differential identification, and multi-source data fusion identification in sequence.

[0102] The data fusion module 506 is used to calculate the comprehensive scoring function and dynamically adjust the weight coefficients of the feature parameters in the multi-source data fusion discrimination.

[0103] The output module 507 is used to send the finally determined fault section information to the first system for display, and instruct the first system to automatically generate maintenance work orders and dispatch them to maintenance personnel.

[0104] It can be understood that the function division between the modules shown in the embodiments of the present application is only illustrative and does not constitute a limitation on the function of the multi-end alarm based multiplexed fiber channel fault locating system 500. In some other embodiments of the present application, the multi-end alarm based multiplexed fiber channel fault locating system 500 can also be implemented in a manner of different modules or a combination of multiple modules to realize the functions in the multi-end alarm based multiplexed fiber channel fault locating system 500.

[0105] Figure 6 is a schematic diagram of a hardware structure of a computer device provided by the embodiments of the present application. The computer device 600 can include the foregoing Figure 1 The fault section diagnosis apparatus 100 shown in the foregoing Figure 5 The multi-end alarm based multiplexed fiber channel fault locating system 500 shown in the foregoing Figure 6 The computer device 600 shown in the foregoing Figure 2 The computer device 600 shown in the foregoing Figure 4 The computer program 603 stored in the foregoing memory 602 and executable on the foregoing processor 601. Wherein, the processor 601 executes the foregoing computer program 603 to realize the execution steps shown in the foregoing

[0106] The one or more units / modules can be a series of computer program instruction segments capable of completing a specific function, which are used to describe the execution process of the computer program 603 in the computer device 600. For example, the computer program 603 can be used to execute the method shown in the steps S101-S108 in the foregoing Figure 2 The specific function or mechanism has been described in the foregoing embodiments and will not be described here.

[0107] Those skilled in the art can understand that Figure 6 is only an example of the computer device 600 and does not constitute a limitation on the computer device 600, and can include more or fewer components than shown, or combine certain components, or different components, for example, the foregoing computer device 600 can also include an input / output device, a network access device, a bus, etc.

[0108] The processor 601 can be a central processing unit (CPU), and can also be other general-purpose processors, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable logic array (FPGA) or other programmable logic devices, discrete gates or transistor logic, discrete hardware components, etc. The general-purpose processor can be a microprocessor or the processor can also be any conventional processor.

[0109] In some embodiments, the processor 601 can include one or more interfaces. The interfaces can include an I2C interface, an I2S interface, a PCM interface, a UART interface, an MIPI interface, a GPIO interface, an OBD interface, and / or a USB interface, etc. It can be understood that the interface connection relationship between the modules shown in the embodiments of the present application is only illustrative, and does not constitute a structural limitation of the computer device 600. In some other embodiments of the present application, the computer device 600 can also use different interface connection modes or combinations of multiple interface connection modes.

[0110] In some embodiments, the computer device 600 can connect the internal devices and modules through one or more interfaces. The memory 602 can be an internal storage unit of the computer device 600, such as a hard disk or a memory of the computer device 600. The memory 602 can also include both the internal storage unit of the computer device 600 and an external storage device. The memory 602 is used to store the computer program and other programs and data required by the computer device 600. The memory 602 can also be used to temporarily store data that has been output or will be output.

[0111] The communication module 604 can provide a wireless communication solution applied to the computer device 600, including a wireless local area network (WLAN), Bluetooth (BT), a global navigation satellite system (GNSS), a frequency modulation (FM), a near field communication (NFC), an infrared (IR), etc. The communication module 604 can be one or more device communication modules integrated with at least one communication processing module, receive electromagnetic waves via an antenna, demodulate and filter the electromagnetic wave signals, and send the processed signals to the processor 601. The communication module 604 can also receive signals to be sent from the processor 601, frequency modulate them, amplify them, and radiate them as electromagnetic waves via an antenna.

[0112] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional units and modules is exemplified, and in actual applications, the above functions can be completed by different functional units and modules according to needs, that is, the internal structure of the device is divided into different functional units or modules to complete all or part of the functions described above.

[0113] The various functional units and modules in the embodiments can be integrated in one processing unit, or can be physically present separately, or two or more units can be integrated in one unit, and the integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0114] In the embodiments of the present application, the specific names of the functional units and modules are only for the purpose of mutual distinction, and are not used to limit the protection scope of the present application. It should be understood that each step in the above method embodiments provided by the present application can be completed by integrated logic circuits of hardware in the processor or instructions in the form of software. The method steps disclosed in conjunction with the embodiments of the present application can be directly embodied as hardware processor execution completion, or executed by hardware and software module combination in the processor.

[0115] The present application also provides a computer readable storage medium, which stores a computer program (also referred to as code or instructions). When the computer program is run, it makes the computer execute the method executed by the computer device in any one of the preceding embodiments. The computer readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. integrated with one or more available media. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a digital versatile disc DVD), or a semiconductor medium (for example, a solid state disk SSD) and the like.

[0116] Those of ordinary skill in the art can understand that all or part of the processes in the foregoing embodiments can be implemented by a computer program to instruct relevant hardware, and the program can be stored in a computer readable storage medium. When the program is executed, it can include the processes of the foregoing method embodiments. The foregoing storage medium includes a readable memory ROM or a random memory RAM, a magnetic disk or an optical disk, and various program code storage media.

[0117] In summary, the above description is only an embodiment of the technical solution of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made according to the disclosure of the present application shall be included in the protection scope of the present application.

Claims

1. A method for fault location in a multiplexed fiber optic channel based on multi-terminal alarms, characterized in that, Includes the following steps: Step 1: Collect the first information in the multiplexed optical fiber channel through the first interface device, and upload the first information to the first system. The first system includes an integrated automation system and a security system. The first interface device is connected to the line protection device and the communication interface device in the multiplexed optical fiber channel. The first information includes the optical port information and electrical port information of the line protection device, as well as the optical port information and electrical port information of the communication interface device. Step 2: Perform time synchronization processing on the first interface device and the first system based on the time synchronization protocol to ensure that the first information has a unified timestamp; Step 3: Generate binary optical alarms and electrical alarms based on the first information to form a state vector, which indicates the operating status of the line protection device and the communication interface device; Step 4: Input the state vector into a preset fault location relationship table to determine the initial fault section. The fault location relationship table defines a one-to-one mapping relationship between the state vector and the fault section in the multiplexed optical fiber channel. Step 5: When the preliminary fault section includes the OPGW (Optical Fiber Composite Overhead Ground Wire) section, a multi-level fault identification process is executed to obtain the precise fault section. If the precise fault section is the OPGW section, the OPGW section is confirmed to be faulty; otherwise, the OPGW section is ruled out. The fault identification process consists of communication network management performance parameter identification, optical power differential identification, and multi-source data fusion identification in sequence. Step Six: Send the finally determined faulty section information to the first system for display.

2. The method according to claim 1, characterized in that, The state vector includes: Light alarm, Electrical alarm, Light alarm, Electrical alarm, Light alarm, Electrical alarm, Light alarm and Electrical alarm, wherein the multiplexed fiber optic channel has substations located at both ends, This refers to the line protection device in the first substation. The line protection device is for the second substation. This refers to the communication interface device of the first substation. This refers to the communication interface device of the second substation.

3. The method according to claim 2, characterized in that, The multiplexed fiber channel includes a first segment, a second segment, a third segment, a fourth segment, and the OPGW segment. In the fault location table, the one-to-one mapping relationship between the state vector and the fault segment in the multiplexed fiber channel specifically includes: When the state vector indicates the Light alarm or as described Electrical alarm or the above Light alarm or as described When an electrical alarm occurs, the multiplexed fiber optic channel fails, and this is transmitted through the... and stated The operating status indicates the fault range: If the instruction is as stated Light alarm, no indication provided If a light alarm is triggered, the faulty section is the first segment; If not indicated Light alarm, indicating the If a light alarm is triggered, the faulty section is the second segment; If the instruction is as stated Electrical alarm, not indicated as stated If an electrical alarm is triggered, the faulty section is either the third section or the OPGW section; If not indicated Electrical alarm, indicating the If an electrical alarm is triggered, the faulty section is either the fourth section or the OPGW section.

4. The method according to claim 1, characterized in that, The communication network management performance parameter discrimination includes: The communication network management performance parameters are compared with a preset first threshold to determine whether they exceed the range of the first threshold limit. If they exceed the range of the first threshold limit, the precise fault segment is determined to include the OPGW segment. The communication network management performance parameters are performance indicators related to the OPGW segment, including the bit error rate. Block error rate, frame error rate and signal-to-noise ratio .

5. The method according to claim 4, characterized in that, The optical power differential discrimination includes: Based on the first information, calculate the difference in received optical power at both ends of the multiplexed optical fiber channel. If the above If the threshold value exceeds the preset second threshold, the precise faulty section is determined to include the OPGW section.

6. The method according to claim 5, characterized in that, The multi-source data fusion discrimination includes: When the initial fault segment includes the OPGW segment, and neither the communication network management performance parameter discrimination nor the optical power differential discrimination can determine that the precise fault segment includes the OPGW segment, the multi-source data fusion discrimination is then performed. Based on the above The above The above and stated Calculate the comprehensive scoring function If the above If the value is greater than or equal to a preset third threshold, then the precise fault segment is determined to include the OPGW segment. If the value is less than the third threshold, it is determined that the precise fault section does not include the OPGW section. The calculation formula is: in, , , , The following are in sequence The above The above The above The weighting coefficients.

7. The method according to claim 6, characterized in that, The The above The above The above The value is dynamically determined through a multiple regression method based on historical data, specifically including: acquiring multiple confirmed fault and non-fault sample data of the OPGW section, and then... After normalizing the feature parameters, a regression model is established. : in, , , , The normalized versions are as follows: The above The above The above , The residual term represents the deviation between the model's predicted values ​​and the actual results. The above The above The above The optimal coefficients are obtained by using the least squares method and are dynamically corrected based on the acquired sample data.

8. The method according to any one of claims 1-7, characterized in that, The finally determined fault section information is displayed graphically in the first system, and the first system is instructed to automatically generate maintenance work orders and dispatch them to maintenance personnel.

9. A multiplexed fiber optic channel fault location system based on multi-terminal alarms, characterized in that, include: The first interface device, deployed in the relay protection room and the communication equipment room, is used to collect first information from multiple endpoints in the multiplexed optical fiber channel and upload the first information to the first system. The first system includes an integrated automation system and a protection and information system. The first interface device connects the line protection device and the communication interface device in the multiplexed optical fiber channel. The first information includes the optical port information and electrical port information of the line protection device, as well as the optical port information and electrical port information of the communication interface device. The time synchronization module is used to perform time synchronization processing on the first interface device and the first system based on the time synchronization protocol to ensure the consistency between the first interface device and the first system. The state vector processing module is used to generate binary optical alarms and electrical alarms based on the first information, forming a state vector that indicates the operating status of the line protection device and the communication interface device. The fault location relationship table module is used to input the state vector into a preset fault location relationship table to determine the initial fault section. The fault location relationship table defines a one-to-one mapping relationship between the state vector and the fault section in the multiplexed optical fiber channel. The sequential decision module is used to execute a multi-level fault identification process to obtain the precise fault section and determine whether the fiber optic composite overhead ground wire (OPGW) section belongs to the precise fault section. The fault identification process consists of communication network management performance parameter identification, optical power differential identification, and multi-source data fusion identification in sequence. The data fusion module is used to calculate the comprehensive scoring function and dynamically adjust the weight coefficients of the feature parameters in the multi-source data fusion discrimination. The output module is used to send the finally determined fault section information to the first system for display, and instruct the first system to automatically generate maintenance work orders and dispatch them to maintenance personnel.

10. A computer device, characterized in that, The device includes one or more memories and one or more processors; the memories are coupled to the one or more processors, the memories are used to store computer program code, the computer program code including computer instructions, and the one or more processors invoke the computer instructions to cause the computer device to perform the method as described in any one of claims 1 to 8.

Images