Passive optical equipment fault detection method and device and nonvolatile storage medium

Abstract

The invention discloses a passive optical equipment fault detection method, a passive optical equipment fault detection device and a nonvolatile storage medium. The method comprises the following steps: determining a service flow state of a service flow; under the condition that the service flow state is an abnormal state, active optical equipment and passive optical equipment related to the service flow are determined, and the active optical equipment and the passive optical equipment are connected; determining the device state of the active optical device, and determining whether there is a fault of the passive optical device according to the device state of the active optical device and a preset fault judgment rule, and determining whether there is a fault of the passive optical device when it is determined that there is a fault of the passive optical device. And according to the optical fiber link optical power segmentation loss value corresponding to the service flow, determining a faulted passive optical device which breaks down from the passive optical devices. According to the invention, the technical problem of difficulty in fault positioning caused by incapability of directly monitoring the passive optical equipment is solved.

Description

Technical Field

[0001] The present application relates to the field of network technology and security, and in particular to a method and apparatus for detecting faults in passive optical equipment and a non-volatile storage medium. Background Art

[0002] To address the shortcomings of existing traditional local area networks (LANs) in industrial enterprises, passive optical networks (PONs) provide a set of solutions that meet the requirements of industrial scenario indicators for the construction and transformation of enterprise intranets. By using passive optical network (PON) technology, it can collect and transmit the operating data and production data of various equipment in the factory. The comprehensive factory intranet solution provided by the passive optical network, an open platform for industrial protocol collection and conversion, meets the network application needs of various industries and sizes.

[0003] However, because the Optical Distribution Network (ODN) is entirely passive, existing network management systems can only collect information such as network performance and alarms from active devices. They are unable to collect relevant information from optical splitters and optical fibers, making it difficult to diagnose and locate faults in these devices.

[0004] To address the above-mentioned problems, no effective solutions have been proposed so far. Summary of the Invention

[0005] The embodiments of the present application provide a passive optical device fault detection method, apparatus, and non-volatile storage medium to at least solve the technical problem of difficulty in fault location due to the inability to directly monitor passive optical devices.

[0006] According to one aspect of an embodiment of the present application, a passive optical device fault detection method is provided, comprising: determining a business flow status of a business flow; when the business flow status is an abnormal state, determining active optical devices and passive optical devices related to the business flow, wherein there is a connection relationship between the active optical devices and the passive optical devices; determining the device status of the active optical device, and determining whether a passive optical device has failed based on the device status of the active optical device and a preset fault judgment rule, and when it is determined that a passive optical device has failed, determining a faulty passive optical device from the passive optical devices based on an optical fiber link optical power segment loss value corresponding to the business flow, wherein the fault judgment rule includes a correlation relationship between the device status of the active optical device and the fault status of the passive optical device.

[0007] Optionally, the active optical device includes an optical line terminal and an optical network unit, and the passive optical device includes an optical splitter and an optical fiber; the device status of the active optical device is determined, and whether there is a passive optical device fault is determined based on the device status of the active optical device and a preset fault judgment rule, and when it is determined that there is a passive optical device fault, the faulty passive optical device is determined from the passive optical device based on the optical power segment loss value of the optical fiber link corresponding to the business flow. The passive optical device includes: when the status of all optical network units connected to the optical splitter are offline, and the status of the optical line terminal connected to the optical splitter is that the optical transmission power of the corresponding port of the passive optical network board in the optical line terminal is within a preset range, it is determined that there is a fault in the passive optical device; when it is determined that there is a fault in the passive optical device, whether the faulty passive optical device includes the optical splitter or the optical fiber connected to the optical splitter is determined based on the optical power segment loss value.

[0008] Optionally, determining whether the faulty passive optical device includes an optical splitter or an optical fiber connected to the optical splitter based on the optical power segment loss value includes: when the optical power segment loss value of the optical fiber connected to the optical splitter is within a preset value range, determining that the faulty passive optical device includes the optical splitter; when the optical power segment loss value of the optical fiber connected to the optical splitter is not within a preset value range, determining that the faulty passive optical device includes the optical fiber connected to the optical splitter; and determining that the faulty passive optical device includes the optical splitter when the optical fiber connected to the optical splitter is replaced and the service flow status is an abnormal state.

[0009] Optionally, after determining the faulty passive optical device from the passive optical devices based on the optical fiber link optical power segment loss value corresponding to the business flow, the method also includes: determining a topological relationship diagram of the active optical devices and passive optical devices related to the business flow in the abnormal state, and marking the location information of the faulty passive optical device in the topological relationship diagram; and displaying the topological relationship diagram with the marked location information.

[0010] Optionally, when the faulty passive optical device is a faulty optical splitter, the location information includes at least one of the following: the weak current room where the faulty optical splitter is located, the rack location and slot information; when the faulty passive optical device is a faulty optical fiber, the location information includes at least one of the following: the section where the faulty optical fiber is located, and the device port information connected to the upper and lower links of the faulty optical fiber.

[0011] Optionally, determining the business flow status of a business flow includes: determining the business flow indicators of the business flow, wherein the indicator types of the business flow indicators include at least one of the following: delay, jitter, packet loss rate, connection stability, number of retransmissions, and link establishment speed; determining the thresholds corresponding to various indicator types; and determining that the business flow status of the business flow is an abnormal state when there is at least one business flow indicator whose indicator value exceeds the corresponding threshold.

[0012] Optionally, the method also includes: when the fault is an overall failure of the optical splitter, the maintenance robot replaces the faulty optical splitter according to a first maintenance instruction; when the fault is a port failure in the optical splitter, the maintenance robot determines the faulty port according to a second maintenance instruction, and switches the optical fiber connected to the faulty port to a backup port connected to the faulty port, wherein the second maintenance instruction includes a port identifier of the faulty port.

[0013] According to another aspect of an embodiment of the present application, a passive optical device fault detection device is also provided, including: a first processing module for determining the business flow status of a business flow; a second processing module for determining the active optical device and the passive optical device related to the business flow when the business flow status is an abnormal state, wherein there is a connection relationship between the active optical device and the passive optical device; a third processing module for determining the device status of the active optical device, and determining whether there is a passive optical device fault based on the device status of the active optical device and a preset fault judgment rule, and when it is determined that there is a passive optical device fault, determining the faulty passive optical device from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes the correlation relationship between the device status of the active optical device and the fault status of the passive optical device.

[0014] According to another aspect of an embodiment of the present application, a non-volatile storage medium is provided, in which a program is stored. When the program is running, the device where the non-volatile storage medium is located is controlled to execute a passive optical device fault detection method.

[0015] According to another aspect of an embodiment of the present application, an electronic device is provided, including: a memory and a processor, wherein the processor is configured to run a program stored in the memory, wherein the passive optical device fault detection method is executed when the program is run.

[0016] According to another aspect of an embodiment of the present application, a computer program product is provided, including a computer program, which implements a passive optical device fault detection method when executed by a processor.

[0017] In an embodiment of the present application, a method is adopted to determine the business flow status of a business flow; when the business flow status is an abnormal state, determine the active optical device and the passive optical device related to the business flow, wherein there is a connection relationship between the active optical device and the passive optical device; determine the device status of the active optical device, and determine whether there is a passive optical device failure based on the device status of the active optical device and a preset fault judgment rule, and when it is determined that there is a passive optical device failure, determine the faulty passive optical device from the passive optical device based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes a correlation between the device status of the active optical device and the fault status of the passive optical device. By monitoring and analyzing the business flow status, passive optical device fault detection is performed based on the status of the active optical device and the preset fault judgment rule, thereby achieving the purpose of quickly identifying business anomalies and locating faulty devices, thereby realizing the technical effect of automatically diagnosing faults of passive optical devices (such as optical splitters, optical fibers), and further solving the technical problem of difficulty in fault locating caused by the inability to directly monitor passive optical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 is a structural diagram of a computer terminal provided according to an embodiment of the present application;

[0020] Figure 2 1 is a flow chart of a method for detecting faults in a passive optical device according to an embodiment of the present application;

[0021] Figure 3 is a schematic diagram of a network management system provided according to an embodiment of the present application;

[0022] Figure 4 is a schematic diagram of a network fault linkage analysis module provided according to an embodiment of the present application;

[0023] Figure 5 This is a schematic diagram of a process for linking and locating optical splitter and optical fiber faults according to an embodiment of the present application;

[0024] Figure 6 It is a structural diagram of a passive optical device fault detection device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0026] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0027] In order to better understand the embodiments of the present application, the technical terms involved in the embodiments of the present application are explained as follows:

[0028] OLT (optical line terminal): optical line terminal.

[0029] ONU (Optical Network Unit): Optical network unit.

[0030] OTDR (Optical Time Domain Reflectometer): Optical time domain reflectometer.

[0031] ODF (Optical Distribution Frame): Optical fiber distribution frame.

[0032] Most enterprises generally do not implement dual-node protection for optical splitters due to investment cost considerations. Taking a 1:32 optical splitter as an example, one optical splitter can connect to 32 ONUs, and one ONU has several to dozens of user interfaces. If an optical splitter fails, it will affect the services of hundreds of information nodes. Therefore, fault diagnosis and positioning of optical splitters and optical fibers are very important. However, since optical splitters and optical fibers are passive, the existing network management system can only collect network performance, alarm and other information for active devices. The performance and faults of optical splitters and optical fibers cannot be directly collected. Fault detection of passive devices has become a difficulty and pain point in enterprise network operation and maintenance.

[0033] When an optical splitter fails, the current practice is to use an optical power meter to perform a manual environmental inspection. This method uses the optical power meter to confirm the light receiving range section by section and check whether there is no light or weak light. Sometimes, an OTDR instrument is also needed to analyze and determine the specific ODN fault point. This is time-consuming, labor-intensive, and inefficient, resulting in long network fault diagnosis and recovery times, affecting enterprise production.

[0034] In order to solve the above problems, relevant solutions are provided in the embodiments of the present application, which are described in detail below.

[0035] According to an embodiment of the present application, a method embodiment of a passive optical device fault detection method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0036] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 The hardware structure block diagram of a computer terminal for implementing a passive optical device fault detection method is shown in FIG. Figure 1 As shown, the computer terminal 10 may include one or more (illustrated as 102a, 102b, ..., 102n in the figure) processors 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission device 106 for communication functions. In addition, it may also include: a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which may be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. It will be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the above electronic device. Figure 1 More or fewer components than shown, or with Figure 1 Different configurations shown.

[0037] It should be noted that the one or more processors 102 and / or other data processing circuits described above may generally be referred to herein as "data processing circuitry." The data processing circuitry may be embodied in whole or in part as software, hardware, firmware, or any other combination thereof. Furthermore, the data processing circuitry may be a single, independent processing module, or may be incorporated in whole or in part into any of the other components of the computer terminal 10. As described in the embodiments of the present application, the data processing circuitry serves as a processor control (e.g., selection of a variable resistor terminal path connected to an interface).

[0038] Memory 104 can be used to store software programs and modules for application software, such as the program instructions / data storage device corresponding to the passive optical device fault detection method in the embodiments of the present application. Processor 102 executes the software programs and modules stored in memory 104 to perform various functional applications and data processing, thereby implementing the aforementioned passive optical device fault detection method. Memory 104 can include high-speed random access memory (RAM) and non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 can further include memory remotely located from processor 102, which can be connected to computer terminal 10 via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0039] The transmission device 106 is configured to receive or transmit data via a network. A specific example of the aforementioned network may include a wireless network provided by the communications provider of the computer terminal 10. In one embodiment, the transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication with the Internet. In another embodiment, the transmission device 106 may be a radio frequency (RF) module, which is configured to communicate with the Internet wirelessly.

[0040] The display may be, for example, a touch screen liquid crystal display (LCD) that enables a user to interact with a user interface of the computer terminal 10 .

[0041] In the above operating environment, the embodiment of the present application provides a passive optical device fault detection method, such as Figure 2 As shown, the method includes the following steps:

[0042] Step S202: Determine the service flow status of the service flow.

[0043] As an optional implementation, determining the business flow status of a business flow includes: determining the business flow indicators of the business flow, wherein the indicator types of the business flow indicators include at least one of the following: delay, jitter, packet loss rate, connection stability, number of retransmissions, and link establishment speed; determining the thresholds corresponding to various indicator types; and determining that the business flow status of the business flow is an abnormal state when there is at least one business flow indicator whose indicator value exceeds the corresponding threshold.

[0044] Optionally, before determining the service status of the service flow, it also includes integrating the management function modules of "passive devices" such as optical fibers and optical splitters with the PON equipment management in the same integrated management and control platform; by transforming the "optical cable junction box" into an electronic tray, the ODF rack can be turned into an intelligent ODF rack, and the optical path can be monitored online through the intelligent ODF rack. Through the optical port electronic tags, the use of optical fiber resources can be controlled in real time, and the "dumb resources" can be recorded and visually managed to avoid misconnections of optical paths. On the basis of the current "performance and fault alarm" function of the PON network management, a "network fault linkage analysis module" is added; based on the "performance, fault alarm" and other information collected by the PON network management on the active equipment OLT and ONU, the designed analysis model is used to analyze and diagnose whether the optical splitter is in normal working condition. Figure 3 A schematic diagram of the network management system is shown in FIG. Figure 3 The OLT devices in the multiple computer rooms shown are connected to the management server. The network management server has a built-in network fault linkage analysis module for determining the service status of the service flow and locating the fault. The OLT is connected to multiple ONU devices through an optical splitter and optical fiber. The ONU device has a user interface for connecting to various user devices (including cameras in the security system, machine equipment or wireless access points (APs) in the production network and office network). Figure 4 A schematic diagram of a network fault linkage analysis module is shown in FIG. Figure 4 As shown, the network fault linkage analysis module is set in the industrial PON integrated management and control platform (deployed in the network management server) and interacts with the PON network (including OLT equipment and ONU equipment) of the enterprise / industrial park through the SNMP protocol. The module uses business flow indicators and pre-set alarm thresholds (i.e., thresholds corresponding to various indicator types) to provide early warnings. It also includes automatic switching, forced switching, and device restart of faulty equipment. The module also interacts with the Web client, which is used to send alarm information. When the alarm is a level 1 alarm, it is also used to make an alarm call and send a fault repair program to the maintenance robot.

[0045] Optionally, an AI algorithm is deployed within a converged management and control platform (network management platform). This algorithm primarily collects and analyzes the correlations between different devices by collecting and analyzing various optical path performance indicators and their changing trends. This algorithm, combined with previously collected preliminary topology information, forms a complete passive network topology. This converged platform provides real-time monitoring of the active PON device status and enables coordinated analysis of both passive and active device fault information.

[0046] By collecting network delay, jitter, packet loss rate, optical transmission power, optical receiving power, temperature and other parameters of PON equipment in real time as service flow indicators, if the value of at least one service flow indicator exceeds the corresponding threshold, the service flow status of the service flow is determined to be abnormal; the integrated monitoring module has a service quality analysis system for analyzing each service flow carried in the system and analyzing the health status of each service flow, such as connection stability, number of retransmissions, link establishment speed, etc. as service flow indicators.

[0047] In the process of monitoring the service quality indicators of the end-to-end transmission link, the corresponding threshold values of the network performance of delay, jitter, and packet loss rate are compared with those of different services. If they are within the normal range, monitoring will continue. If it is detected that the performance indicators such as delay, jitter, and packet loss rate of the main link (i.e., service flow indicators) exceed the threshold values allowed by a certain service (i.e., the threshold values corresponding to the service flow indicators), the service flow status of the service flow is determined to be abnormal and an alarm is automatically issued. Once it is found that some parameters are close to the fault point, the service flow status of the service flow is also determined to be abnormal. Through linkage analysis, it is determined whether the fault is in the active equipment or the passive equipment (including optical splitters and optical fibers).

[0048] Step S204 : when the service flow state is abnormal, determining the active optical device and the passive optical device related to the service flow, wherein a connection relationship exists between the active optical device and the passive optical device.

[0049] Optionally, devices associated with service flows can be identified based on the passive network topology: The passive network topology details the connection methods and logical relationships between each node and fiber segment in the network. For example, if a specific service flow originates from port 1 of the OLT device and ultimately reaches port X of the ONU device, all optical splitters connected between the OLT and ONU along this path, the optical fibers occupied by the splitters, and the ONUs connected to the splitters are identified as active and passive optical devices associated with the service flow.

[0050] Step S206, determine the device status of the active optical device, and determine whether there is a passive optical device fault based on the device status of the active optical device and the preset fault judgment rule, and when it is determined that there is a passive optical device fault, determine the faulty passive optical device from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes the correlation between the device status of the active optical device and the fault status of the passive optical device.

[0051] Optionally, when an optical splitter or optical fiber fails, although relevant information about the optical splitter cannot be collected from the existing PON network management, information such as "performance, fault alarm" of the active equipment OLT and ONU can be collected; compared with the pre-entered optical splitter upstream OLT port and downstream ONU device information database, it is determined whether there is a passive optical device failure through preset fault judgment rules.

[0052] In the technical solution provided in step S206, the active optical device includes an optical line terminal and an optical network unit, and the passive optical device includes an optical splitter and an optical fiber; the device status of the active optical device is determined, and whether a passive optical device has failed is determined based on the device status of the active optical device and a preset fault judgment rule; and when it is determined that a passive optical device has failed, the faulty passive optical device is determined from the passive optical device based on the optical power segment loss value of the optical fiber link corresponding to the business flow. The faulty passive optical device includes: when the status of all optical network units downstream of the optical splitter are offline, and the status of the optical line terminal upstream of the optical splitter is that the optical transmission power of the corresponding port of the passive optical network board in the optical line terminal is within a preset range, it is determined that the passive optical device has failed; when it is determined that a passive optical device has failed, it is determined based on the optical power segment loss value whether the faulty passive optical device includes the optical splitter or the optical fiber upstream of the optical splitter.

[0053] Optionally, when the PON network management displays that all ONUs downstream of the optical splitter are offline (the ONUs have no transmitting or receiving optical power), and the optical transmission power of the corresponding connection port of the OLT PON board card upstream of the faulty optical splitter is normal (that is, the optical transmission power of the corresponding port of the passive optical network board card is within a preset range), it can be determined that a fault has occurred in the optical splitter or the upstream optical fiber (that is, there is a fault in the passive optical device).

[0054] Optionally, the optical fiber link segment loss value collected by the "intelligent ODF rack management module" can be used to further determine whether the "optical splitter" is faulty or the optical fiber connected to the optical splitter is faulty.

[0055] As an optional implementation manner, determining whether the faulty passive optical device includes an optical splitter or an optical fiber connected to the optical splitter based on the optical power segmentation loss value includes: when the optical power segmentation loss value of the optical fiber connected to the optical splitter is within a preset value range, determining that the faulty passive optical device includes an optical splitter; when the optical power segmentation loss value of the optical fiber connected to the optical splitter is not within a preset value range, determining that the faulty passive optical device includes the optical fiber connected to the optical splitter; and when the optical fiber connected to the optical splitter is replaced and the service flow status is abnormal, determining that the faulty passive optical device includes an optical splitter.

[0056] Optionally, if it is found that all ONUs under a certain optical splitter are in an offline state and the optical transmission power of the connection port of the OLT PON board card connected to the faulty optical splitter is abnormal, the optical splitter is ruled out as a fault and it is determined that the optical port of the OLT PON board card connected to the optical splitter is faulty.

[0057] Optionally, after determining the faulty passive optical device from the passive optical devices based on the optical fiber link optical power segment loss value corresponding to the business flow, the method also includes: determining a topological relationship diagram of the active optical devices and passive optical devices related to the business flow in the abnormal state, and marking the location information of the faulty passive optical device in the topological relationship diagram; and displaying the topological relationship diagram with the marked location information.

[0058] Optionally, when the faulty passive optical device is a faulty optical splitter, the location information includes at least one of the following: the weak current room where the faulty optical splitter is located, the rack location and slot information; when the faulty passive optical device is a faulty optical fiber, the location information includes at least one of the following: the section where the faulty optical fiber is located, and the device port information connected to the upper and lower links of the faulty optical fiber.

[0059] Optionally, after the faulty passive optical device is determined from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, a topological relationship diagram of the faulty optical splitter pops up on the network management interface while the PON network management issues an audible and optical alarm message; and the location information of the faulty optical splitter or the faulty optical fiber is displayed. If it is an optical splitter failure, it includes displaying which weak current room, rack, and slot (i.e., rack location and slot information) the optical splitter is in; if it is an optical fiber failure, it includes displaying which section the faulty optical fiber is in and the upper and lower connected device port information.

[0060] Optionally, the method also includes: when the fault is an overall failure of the optical splitter, the maintenance robot replaces the faulty optical splitter according to a first maintenance instruction; when the fault is a port failure in the optical splitter, the maintenance robot determines the faulty port according to a second maintenance instruction, and switches the optical fiber connected to the faulty port to a backup port connected to the faulty port, wherein the second maintenance instruction includes a port identifier of the faulty port.

[0061] Optionally, in the network fault linkage analysis module, there are preset response and repair plans for various "optical splitter" faults, such as the repair plan for the entire optical splitter, the repair plan for a port of the optical splitter, the repair plan for the optical fiber connected to the optical splitter, etc.; then, for these plans, corresponding pre-written maintenance robot repair programs and instruction sets are stored.

[0062] Optionally, when the PON network manager issues an audible or visual alarm, the PON network manager sends a corresponding repair program corresponding to the fault to the maintenance robot based on the alarm level. The maintenance robot repairs the fault according to the fault repair program issued by the PON network manager, including the maintenance robot locating the specific rack and slot where the faulty optical splitter is located according to program instructions. If the optical splitter as a whole is faulty, the maintenance robot replaces the faulty optical splitter according to the instruction (i.e., the first maintenance instruction). If only a port of the optical splitter is faulty, the robot determines the faulty port according to the second maintenance instruction, unplugs the optical fiber connected to the faulty port, and replaces it with a backup port on the optical splitter (i.e., a backup port connected to the faulty port). Maintenance robots perform rapid repairs according to agile operation and maintenance plans. Optical splitters and optical fibers are passive devices and do not require any data configuration. They only need to prepare similar optical splitters and optical fibers (optical fibers are prefabricated into "pre-terminated" fibers of different lengths according to the fault plan) in the same computer room as the plan, and directly plug and unplug the corresponding upper and lower connecting fibers into the new optical splitter. The fault repair time is reduced from the original "hours" to "minutes".

[0063] Optionally, when the optical fiber connected to the optical splitter is replaced and the optical fiber fault is repaired, and the service flow state is still abnormal, it is determined that the faulty passive optical device includes the optical splitter.

[0064] Optionally, for the "Level 1 Alarm", it also includes calling Zabbix's telephone alarm service. The Zabbix platform uses a voice software robot to make an alarm call, and voice notifies the operation and maintenance personnel to conduct a second confirmation of the fault repair status of the maintenance robot.

[0065] Optionally, the embodiment of the present application provides a method for linking and locating optical splitter and optical fiber faults, such as Figure 5 As shown, the method includes the following steps:

[0066] In step S501, the PON network management collects information such as "performance, fault alarms" of active devices such as OLT and ONU in real time, determines whether the active devices such as OLT and ONU are abnormal, and detects in real time whether the network performance indicators of PON network-related devices can meet the requirements of various business application scenarios.

[0067] In step S502, once the network performance and function of the active equipment OLT and ONU are abnormal, the PON network management immediately records the relevant abnormal information and pops up fault alarm information in real time.

[0068] In step S503, if multiple ONUs and OLT boards fail at the same time, the PON network management's "network linkage analysis module" compares the pre-entered information of the OLT and ONU device information databases at the upstream and downstream ports of the optical splitter; based on the innovative algorithm model, it generates a topological relationship diagram between each optical splitter and the OLT and ONU, and performs an overall correlation analysis based on the logical relationship between the faulty devices.

[0069] Step S504 determines whether the optical splitter is faulty. If all ONUs connected to a particular optical splitter are offline and the optical transmission power of the port connected to the OLT PON board connected to the faulty optical splitter is abnormal, the optical splitter is ruled out as faulty. The fault is determined to be at the optical port connected to the OLT PON board. If the optical power loss of the optical fiber connected to the optical splitter is within a preset range, the faulty passive optical device is determined to include the optical splitter. The PON network manager issues an audible and visual alarm and, based on the alarm level, sends a repair program to the maintenance robot through the PON network manager.

[0070] In step S505, the maintenance robot follows program instructions to locate the specific rack and slot where the faulty optical splitter is located. If the fault is with the entire optical splitter, the maintenance robot replaces the faulty splitter according to the instructions. If the fault is limited to a single port on the splitter, the robot unplugs the fiber connecting the splitter and replaces it with a backup port. For a Level 1 alert, Zabbix's telephone alert service is invoked. The Zabbix platform uses a voice software robot to dial the alert number, which notifies the operations and maintenance personnel to confirm the robot's repair status.

[0071] Through the above steps, by adding a "network fault linkage analysis module" to the existing PON network management; based on the linkage analysis of "performance, fault alarms" and other information collected by the PON network management on the existing active equipment OLT and ONU, it is possible to quickly locate the fault of the optical splitter, and send the corresponding repair program to the maintenance robot through the PON network management to achieve a rapid recovery effect. This can greatly save the time and energy of industry customers, significantly reduce the labor costs of enterprise operation and maintenance, and greatly improve the experience of industry customers. Specifically, the method embodiment of the present application has the following advantages:

[0072] (1) The method embodiment of the present application integrates the management function modules of "passive devices" such as optical fibers and optical splitters with the management of PON equipment in the same integrated management and control platform; by transforming the "optical cable junction box" into an electronic tray, the ODF rack becomes an intelligent ODF rack, and the optical path is supervised online. Through the optical port electronic label, the use of optical fiber resources is controlled in real time; the "dumb resources" (optical splitters, optical fibers) are recorded and visually managed to avoid misconnections of optical paths. Based on the integrated platform, the use status of passive "dumb resources" (optical splitters, optical fibers) and active PON equipment can be controlled in real time, and the fault information of "passive equipment" and "active equipment" can be analyzed in a linked manner to improve the accuracy of the analysis.

[0073] (2) The method embodiment of the present application adds a "network fault linkage analysis module" on the basis of the "performance and fault alarm" function of the current PON network management; based on the "performance and fault alarm" and other information collected by the PON network management on the active equipment OLT and ONU, the designed analysis model is used to infer whether the optical splitter is in normal working condition, thereby improving the judgment efficiency.

[0074] (3) An AI algorithm was deployed in the integrated management and control platform. By collecting and analyzing the changing trends of various optical path performance indicators, the correlation between different devices was analyzed. Combined with the preliminary topology information collected previously, a complete passive network topology was formed, thereby improving the accuracy of the topology structure.

[0075] (4) The service flow status is evaluated by real-time collection of network delay, jitter, packet loss rate, optical transmission power, optical receiving power, temperature and other parameters of PON equipment; and the integrated monitoring module has a service quality analysis system, which supports the analysis of each service flow carried in the system and analyzes the health status of each service flow, such as connection stability, number of retransmissions, and link establishment speed, to comprehensively evaluate the service flow status and immediately discover abnormal service flows.

[0076] (5) When an optical splitter fails, although it is impossible to collect relevant information about the optical splitter from the existing PON network management, it is possible to collect information such as "performance, fault alarm" of the active equipment OLT and ONU; and compare it with the pre-entered optical splitter upstream OLT port and downstream ONU equipment information database; if at this time the PON network management will show that all downstream ONUs of the faulty optical splitter are in an offline state (ONU has no transmitting or receiving optical power), and the optical transmission power of the corresponding connection port of the OLTPON board card upstream of the faulty optical splitter is normal, it can be immediately inferred that the optical splitter or the upstream optical fiber has failed, and then the optical fiber link optical power segment loss value collected by the "intelligent ODF rack management module" can be further judged whether it is the "optical splitter" that has failed or the upstream optical fiber that has failed.

[0077] (6) When the PON network management sends out an audible and visual alarm message, a topological diagram of the faulty optical splitter will pop up on the network management interface; and the location information of the faulty optical splitter (or the faulty uplink optical fiber) will be displayed, including which weak current room, rack, and slot the optical splitter is in; if it is an optical fiber failure, the section of the faulty optical fiber and the port information of the uplink and downlink devices will be displayed, and the alarm information will be complete.

[0078] (7) When the PON network manager issues an audible and visual alarm message, the corresponding repair program is sent to the maintenance robot through the PON network manager; the maintenance robot finds the specific rack and slot where the faulty optical splitter is located according to the program instructions; if the optical splitter is faulty as a whole, the maintenance robot completes the replacement of the faulty optical splitter according to the instructions; if only a port of the optical splitter is faulty, the robot unplugs the connecting optical fiber of the optical splitter and replaces it with the spare port of the optical splitter, thereby improving the maintenance efficiency.

[0079] (8) For the “Level 1 Alarm”, the Zabbix telephone alarm service is called. The Zabbix platform uses a voice software robot to make an alarm call, and the voice notification operation and maintenance personnel conduct a second confirmation of the fault repair status of the maintenance robot, ensuring that serious faults are handled immediately.

[0080] The present invention provides a passive optical device fault detection device. Figure 6 is a structural diagram of the device, such as Figure 6As shown, the device includes: a first processing module 60, which is used to determine the business flow status of the business flow; a second processing module 62, which is used to determine the active optical device and the passive optical device related to the business flow when the business flow status is an abnormal state, wherein there is a connection relationship between the active optical device and the passive optical device; a third processing module 64, which is used to determine the device status of the active optical device, and determine whether there is a passive optical device failure based on the device status of the active optical device and a preset fault judgment rule, and when it is determined that there is a passive optical device failure, determine the faulty passive optical device from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes the association relationship between the device status of the active optical device and the fault status of the passive optical device.

[0081] In some embodiments of the present application, the active optical device includes an optical line terminal and an optical network unit, and the passive optical device includes an optical splitter and an optical fiber; the third processing module 64 determines the device status of the active optical device, and determines whether there is a passive optical device fault based on the device status of the active optical device and a preset fault judgment rule, and determines the faulty passive optical device from the passive optical device based on the optical power segment loss value of the optical fiber link corresponding to the business flow when it is determined that there is a passive optical device fault. The faulty passive optical device includes: when the status of all optical network units connected to the optical splitter are offline, and the status of the optical line terminal connected to the optical splitter is that the optical transmission power of the corresponding port of the passive optical network board in the optical line terminal is within a preset range, it is determined that there is a fault in the passive optical device; when it is determined that there is a fault in the passive optical device, it is determined whether the faulty passive optical device includes the optical splitter or the optical fiber connected to the optical splitter based on the optical power segment loss value.

[0082] In some embodiments of the present application, the third processing module 64 determines whether the faulty passive optical device includes an optical splitter or an optical fiber connected to the optical splitter based on the optical power segmentation loss value, including: when the optical power segmentation loss value of the optical fiber connected to the optical splitter is within a preset value range, determining that the faulty passive optical device includes an optical splitter; when the optical power segmentation loss value of the optical fiber connected to the optical splitter is not within a preset value range, determining that the faulty passive optical device includes the optical fiber connected to the optical splitter; and when the optical fiber connected to the optical splitter is replaced and the service flow status is an abnormal state, determining that the faulty passive optical device includes an optical splitter.

[0083] In some embodiments of the present application, after determining the faulty passive optical device from the passive optical devices based on the optical fiber link optical power segment loss value corresponding to the business flow, the third processing module 64 is also used to: determine the topological relationship diagram of the active optical devices and passive optical devices related to the business flow in the abnormal state, and mark the location information of the faulty passive optical device in the topological relationship diagram; and display the topological relationship diagram with the marked location information.

[0084] In some embodiments of the present application, when the faulty passive optical device is a faulty optical splitter, the location information includes at least one of the following: the weak current room where the faulty optical splitter is located, the rack location and slot information; when the faulty passive optical device is a faulty optical fiber, the location information includes at least one of the following: the section where the faulty optical fiber is located, and the device port information connected to the upper and lower links of the faulty optical fiber.

[0085] In some embodiments of the present application, the first processing module 60 determines the business flow status of the business flow, including: determining the business flow indicators of the business flow, wherein the indicator type of the business flow indicators includes at least one of the following: delay, jitter, packet loss rate, connection stability, number of retransmissions, and link establishment speed; determining the thresholds corresponding to various indicator types; and determining that the business flow status of the business flow is an abnormal state when there is at least one business flow indicator whose indicator value exceeds the corresponding threshold.

[0086] In some embodiments of the present application, the passive optical equipment fault detection device is also used to: when the fault is an overall failure of the optical splitter, the maintenance robot replaces the faulty optical splitter according to a first maintenance instruction; when the fault is a port failure in the optical splitter, the maintenance robot determines the faulty port according to a second maintenance instruction, and switches the optical fiber connected to the faulty port to a backup port connected to the faulty port, wherein the second maintenance instruction includes a port identifier of the faulty port.

[0087] It should be noted that the various modules in the above-mentioned passive optical equipment fault detection device can be program modules (for example, a set of program instructions that implement a certain specific function) or hardware modules. For the latter, it can be expressed in the following forms, but is not limited to this: the expression form of each of the above-mentioned modules is a processor, or the functions of each of the above-mentioned modules are implemented by a processor.

[0088] An embodiment of the present application provides a non-volatile storage medium, in which a program is stored, wherein when the program is running, the device where the non-volatile storage medium is located is controlled to execute the following passive optical device fault detection method: determining the business flow status of the business flow; when the business flow status is an abnormal state, determining the active optical device and the passive optical device related to the business flow, wherein there is a connection relationship between the active optical device and the passive optical device; determining the device status of the active optical device, and determining whether there is a passive optical device failure based on the device status of the active optical device and a preset fault judgment rule; and when it is determined that there is a passive optical device failure, determining the faulty passive optical device from the passive optical device based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes the correlation relationship between the device status of the active optical device and the fault status of the passive optical device.

[0089] An embodiment of the present application provides an electronic device, comprising: a memory and a processor, the processor being configured to run a program stored in the memory, wherein the program executes the following passive optical device fault detection method when running: determining a service flow status of a service flow; when the service flow status is abnormal, determining active optical devices and passive optical devices related to the service flow, wherein a connection relationship exists between the active optical devices and the passive optical devices; determining the device status of the active optical device, and determining whether a passive optical device has failed based on the device status of the active optical device and a preset fault judgment rule; and when it is determined that a passive optical device has failed, determining a faulty passive optical device from the passive optical devices based on an optical fiber link optical power segment loss value corresponding to the service flow, wherein the fault judgment rule includes an association relationship between the device status of the active optical device and the fault status of the passive optical device.

[0090] An embodiment of the present application provides a computer program product, including a computer program, which implements the following passive optical device fault detection method when executed by a processor: determining the business flow status of a business flow; when the business flow status is an abnormal state, determining the active optical device and the passive optical device related to the business flow, wherein there is a connection relationship between the active optical device and the passive optical device; determining the device status of the active optical device, and determining whether there is a passive optical device fault based on the device status of the active optical device and a preset fault judgment rule; and when it is determined that there is a passive optical device fault, determining the faulty passive optical device from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes the association relationship between the device status of the active optical device and the fault status of the passive optical device.

[0091] In the above embodiments of the present application, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0092] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. Among them, the device embodiments described above are only exemplary. For example, the division of the units can be a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of units or modules, which can be electrical or other forms.

[0093] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple units. Some or all of the units may be selected according to actual needs to achieve the purpose of the present embodiment.

[0094] In addition, the functional units in the various embodiments of the present application may be integrated into a single processing unit, or each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0095] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the relevant technology or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a read-only memory (ROM), a random access memory (RAM), a mobile hard disk, a magnetic disk or an optical disk.

[0096] The above is only a preferred embodiment of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A passive optical device fault detection method, characterized in that: include: Determine the business flow status of the business flow; In a case where the service flow state is an abnormal state, determining an active optical device and a passive optical device related to the service flow, wherein a connection relationship exists between the active optical device and the passive optical device; Determine the device status of the active optical device, and determine whether the passive optical device has a fault based on the device status of the active optical device and a preset fault judgment rule; and when it is determined that the passive optical device has a fault, determine the faulty passive optical device from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes a correlation between the device status of the active optical device and the fault status of the passive optical device.

2. The passive optical device fault detection method according to claim 1, wherein: The active optical device includes an optical line terminal and an optical network unit, and the passive optical device includes an optical splitter and an optical fiber; determining the device status of the active optical device, and determining whether the passive optical device has failed based on the device status of the active optical device and a preset fault judgment rule; and if it is determined that the passive optical device has failed, determining the faulty passive optical device from the passive optical device based on the optical power segment loss value of the optical fiber link corresponding to the service flow includes: When the states of all the optical network units downstream of the optical splitter are offline, and the state of the optical line terminal upstream of the optical splitter is that the optical transmission power of the corresponding port of the passive optical network card in the optical line terminal is within a preset range, it is determined that the passive optical device has a fault; When it is determined that the passive optical device has a fault, it is determined whether the faulty passive optical device includes the optical splitter or an optical fiber connected to the optical splitter according to the optical power segment loss value.

3. The passive optical device fault detection method according to claim 2, wherein: Determining whether the faulty passive optical device includes the optical splitter or an optical fiber connected to the optical splitter according to the optical power segment loss value includes: When the optical power segment loss value of the optical fiber connected to the optical splitter is within a preset value range, determining that the faulty passive optical device includes the optical splitter; When the optical power segment loss value of the optical fiber connected to the optical splitter is not within a preset value range, it is determined that the faulty passive optical device includes the optical fiber connected to the optical splitter. When the optical fiber connected to the optical splitter is replaced and the service flow status is abnormal, it is determined that the faulty passive optical device includes the optical splitter.

4. The passive optical device fault detection method according to claim 1, wherein: After determining a faulty passive optical device from the passive optical devices based on the optical fiber link optical power segment loss value corresponding to the service flow, the method further includes: Determine a topological relationship diagram of active optical devices and passive optical devices related to the service flow in the abnormal state, and mark the location information of the faulty passive optical device in the topological relationship diagram; A topological relationship diagram with the location information marked is displayed.

5. The passive optical device fault detection method according to claim 4, characterized in that: In the case where the faulty passive optical device is a faulty optical splitter, the location information includes at least one of the following: the weak current room where the faulty optical splitter is located, the rack location and slot information; In the case that the faulty passive optical device is a faulty optical fiber, the location information includes at least one of the following: the section where the faulty optical fiber is located, and port information of devices connected to and below the faulty optical fiber.

6. The passive optical device fault detection method according to claim 1, wherein: Determining the service flow status of a service flow includes: Determining a business flow indicator of the business flow, wherein the indicator type of the business flow indicator includes at least one of the following: delay, jitter, packet loss rate, connection stability, number of retransmissions, and link establishment speed; Determine thresholds corresponding to various indicator types; In a case where an indicator value of at least one of the service flow indicators exceeds the corresponding threshold, it is determined that the service flow state of the service flow is the abnormal state.

7. The passive optical device fault detection method according to claim 1, wherein: The method further comprises: In the case where the fault is a complete failure of the optical splitter, the maintenance robot replaces the faulty optical splitter according to the first maintenance instruction; When the fault is a port fault in the optical splitter, the maintenance robot determines the faulty port according to the second maintenance instruction and switches the optical fiber connected to the faulty port to a backup port connected to the faulty port, wherein the second maintenance instruction includes a port identifier of the faulty port.

8. A passive optical device fault detection device, characterized in that: include: A first processing module is used to determine the service flow status of the service flow; A second processing module is configured to determine, when the service flow state is an abnormal state, an active optical device and a passive optical device related to the service flow, wherein a connection relationship exists between the active optical device and the passive optical device; The third processing module is used to determine the device status of the active optical device, and determine whether the passive optical device has a fault based on the device status of the active optical device and a preset fault judgment rule; and when it is determined that the passive optical device has a fault, determine the faulty passive optical device from the passive optical devices based on the optical power segment loss value of the optical fiber link corresponding to the business flow, wherein the fault judgment rule includes the correlation between the device status of the active optical device and the fault status of the passive optical device.

9. A non-volatile storage medium, characterized in that: The non-volatile storage medium stores a program, wherein when the program is running, the device where the non-volatile storage medium is located is controlled to execute the passive optical device fault detection method according to any one of claims 1 to 7.

10. An electronic device, characterized in that: include: A memory and a processor, wherein the processor is configured to run a program stored in the memory, wherein the method for detecting faults of passive optical devices according to any one of claims 1 to 7 is executed when the program is run.

11. A computer program product, characterized in that The invention comprises a computer program, which implements the passive optical device fault detection method according to any one of claims 1 to 7 when being executed by a processor.

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