CN115733545A - Method and device for detecting performance abnormity of optical splitter - Google Patents

Abstract

The embodiment of the application provides a method and a device for detecting performance abnormality of an optical splitter, wherein in the performance abnormality detection, after optical signal intensities of optical network units are obtained in advance, trend analysis is performed on the optical signal intensities, if the data change trend of the optical signal intensities is continuously low, the data is judged to be abnormal data, if the optical signal intensities of at least two optical network units ONU are both abnormal data and the difference value of the reduction amplitudes is smaller than a first threshold value, the optical splitter directly connected with the at least two optical network units ONU together is judged to be the performance abnormality optical splitter, and then the performance abnormality state of the optical splitter directly connected with the optical network units can be judged directly according to the data correlation degree of the at least two optical network units, so that the fault troubleshooting speed is increased.

Description

Method and device for detecting performance abnormity of optical splitter

[ technical field ] A method for producing a semiconductor device

The embodiment of the application relates to the field of communication, in particular to a method and a device for detecting performance abnormity of an optical splitter.

[ background of the invention ]

At present, a home broadband network generally adopts a Passive Optical Network (PON) technology to realize broadband access, and one optical network line generally includes an Optical Line Terminal (OLT), a Splitter (Splitter), and an Optical Network Unit (ONU).

The optical splitter belongs to passive equipment, and does not have the functions of detecting performance data, reporting alarms and other telecommunication equipment, so the optical splitter belongs to a monitoring blind spot in a home broadband network. In the household broadband daily maintenance, the fault of the optical splitter can be tested on site by step through instruments only under the conditions of user complaints, service interruption and the like, fault points are checked and positioned, manpower and material resources are consumed, the solving speed caused by the low positioning speed is low, and the satisfaction degree of users is directly influenced.

[ summary of the invention ]

The embodiment of the application provides a method and a device for detecting performance abnormity of an optical splitter, so that broadband line detection personnel can directly position the optical splitter with a fault after finding that a certain optical network unit has the fault, and the troubleshooting speed is increased.

In a first aspect, an embodiment of the present application provides a method for detecting performance anomaly of an optical splitter, where the method is applied to an optical splitter in an optical network system, where the optical network system includes at least one optical splitter and at least two optical network units ONU directly connected to each optical splitter, and the method includes:

obtaining the optical signal intensity of the ONU for N times within a preset time period, wherein N is more than or equal to 2;

in the ONUs of the optical network system, at least two target ONUs with continuously reduced optical signal intensity for N times are obtained, and if the reduction amplitude difference values between the optical signal intensities of the at least two target ONUs are smaller than a first threshold value, a target optical splitter which is directly connected with the at least two target ONUs together is determined to be an optical splitter with abnormal performance.

According to the method for detecting the performance abnormity of the optical splitter, after the optical signal intensity of the optical network units is obtained in advance, trend analysis is carried out on the optical signal intensity, if the data change trend of the optical signal intensity is continuously lowered, the data is judged to be abnormal data, if the optical signal intensities of at least two optical network units are both abnormal data and the difference value of the reduction amplitude is smaller than a first threshold value, the optical splitter directly connected with the at least two optical network units together is judged to be the optical splitter with abnormal performance, the performance abnormity state of the optical splitter directly connected with the optical network units can be judged directly according to the data correlation degree of the at least two optical network units, and the troubleshooting speed is increased.

In one possible implementation manner, the optical splitter in the optical network system further includes at least one parent optical splitter, and if the target optical splitter is directly connected to the parent optical splitter, the target optical splitter is a sub-target optical splitter, and the method further includes: if the difference of the reduction amplitudes between the optical signal intensities corresponding to the at least two sub-target optical splitters is smaller than a second threshold value; and determining that the parent optical splitter directly connected with the at least two sub-target optical splitters together is an abnormal-performance optical splitter.

In one possible implementation manner, the step of determining that the target optical splitter to which the at least two target ONUs are directly connected together is an optical splitter with abnormal performance includes: searching a target optical splitter connected with the target ONU in a preset first corresponding relation between the ONU and the optical splitter connected with the ONU; and if at least two target optical splitters which are directly connected with the target ONU together exist, determining that the target optical splitters are abnormal performance optical splitters.

In one possible implementation manner, the optical network system further includes an optical line terminal, where the optical line terminal is connected to at least one optical splitter, and the method further includes: searching a port of the optical line terminal connected with the abnormal optical splitter in a preset second corresponding relation between the optical splitter and the connected optical line terminal; and if at least two ports of the optical line terminal directly connected with the abnormal optical splitters together exist, and the difference values of the reduction amplitudes between the optical signal intensities corresponding to the at least two abnormal optical splitters are smaller than a third threshold value, determining that the ports of the optical line terminal are performance abnormal ports.

In a second aspect, an embodiment of the present application provides an optical splitter performance anomaly detection apparatus, where the apparatus is applied to an optical splitter in an optical network system, where the optical network system includes at least one optical splitter and at least two optical network units ONU directly connected to each optical splitter, and the apparatus includes: the obtaining module is used for obtaining the optical signal intensity of the ONU for N times within a preset time period, wherein N is more than or equal to 2; the judging module is used for obtaining at least two target ONUs with continuously reduced optical signal intensity for N times from the ONUs of the optical network system, and if the difference values of the reduction amplitude between the optical signal intensities of the at least two target ONUs are smaller than a first threshold value, determining that a sub-target optical splitter which is directly connected with the at least two target ONUs together is an optical splitter with abnormal performance.

In one possible implementation manner, the determining module is further configured to determine that a parent optical splitter commonly connected to the at least two sub-target optical splitters is an optical splitter with abnormal performance if the difference between the reduction amplitudes of the optical signal intensities corresponding to the at least two sub-target optical splitters is smaller than a second threshold.

In one possible implementation manner, the apparatus further includes: the searching module is used for searching a target optical splitter connected with the target ONU in a preset first corresponding relation between the ONU and the connected sub optical splitters; the judging module is further configured to determine that the target optical splitter is an optical splitter with abnormal performance if at least two target Optical Network Units (ONUs) are directly connected together.

In one possible implementation manner, the searching module is further configured to search a port of the optical line terminal connected to the abnormal optical splitter in a preset second corresponding relationship between the optical splitter and the connected optical line terminal; the determining module is further configured to determine that the port of the optical line terminal is an abnormal-performance port if there is a port of the optical line terminal to which at least two abnormal optical splitters are directly connected together, and both of the reduction amplitude differences between the optical signal intensities corresponding to the at least two abnormal optical splitters are smaller than a third threshold.

In a third aspect, an embodiment of the present application further provides an apparatus for detecting performance abnormality of an optical splitter, including: a memory; and a processor coupled to the memory, the processor configured to perform the method provided by the first aspect based on instructions stored in the memory.

In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing computer program instructions, which, when executed by one or more processors, cause the computer to perform the method provided in the first aspect.

It should be understood that the second to fourth aspects of the embodiment of the present application are consistent with the technical solution of the first aspect of the embodiment of the present application, and beneficial effects obtained by each aspect and a corresponding possible implementation manner are similar, and are not described again.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present specification, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a network topology structure diagram of an optical network system according to an embodiment of the present application;

fig. 2 is a schematic flowchart of a method for detecting an abnormal performance of an optical splitter according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a data cleaning process according to an embodiment of the present application;

fig. 4 is a schematic flowchart of determining performance abnormality of a port of an optical line terminal according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of an apparatus for detecting performance anomaly of a spectrometer according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of an apparatus for detecting an abnormal performance of a beam splitter according to another embodiment of the present application;

fig. 7 is a schematic structural diagram of a splitter performance abnormality detection apparatus according to still another embodiment of the present application.

[ detailed description ] A

In order to better understand the technical solutions of the present specification, the following detailed description is made with reference to the accompanying drawings.

It should be understood that the described embodiments are only a few embodiments of the present specification, and not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments in the present specification without any inventive step are within the scope of the present specification.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the specification. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

To facilitate an understanding of the present invention, the related art names referred to in the present application will now be described.

Passive optical network

The passive optical fiber network is a point-to-multipoint optical fiber transmission and access technology, and includes an optical line terminal, an Optical Distribution Network (ODN) and an optical network unit, where the optical distribution network includes a series of passive devices such as an optical splitter, an optical fiber cable, an optical cable distribution box, and an optical cable cross-connect box. The passive optical network optical line terminal is used for providing an optical network interface for other network equipment, the optical distribution network is used for transmitting optical signals, and the optical network unit is used for providing network access service for a user terminal.

Network topology

Network Topology (NT) architecture refers to the physical layout of various devices interconnected by a transmission medium, particularly where computers are distributed and how cables connect them. The network topology structure can reflect the structural relationship of the network, and the difference of the network topology structure has important influence on the performance, reliability and the like of the network, so the network topology structure has very important function in the aspects of network construction, troubleshooting and the like.

In the prior art, the fault of the optical splitter can be detected on site by a step-by-step instrument only under the conditions of user complaints, service interruption and the like, fault points are checked and positioned, manpower and material resources are consumed, the positioning speed is low, the solution speed is low, and the satisfaction degree of users is directly influenced.

Based on the above problems, embodiments of the present application provide an optical splitter performance abnormality detection method, which determines a performance abnormality state of an optical splitter directly connected to at least two optical network units by determining data trends of the optical network units, so as to improve a troubleshooting speed.

Fig. 1 is a network topology structure diagram of an optical network system according to an embodiment of the present disclosure, which includes an optical line terminal, a first optical splitter, a second optical splitter, and an optical network unit.

Optionally, the optical line terminal is a local side device in the optical transmission network, and is configured to provide an optical fiber interface of a passive optical network for the optical access network, and a network device in the optical network system provides an optical signal; the optical line terminal can also be used for realizing the control management function of the optical network unit. The network device here includes an optical splitter (a first-stage optical splitter or a second-stage optical splitter) and an optical network unit.

The first-stage optical splitter and the second-stage optical splitter are used for distributing optical signals received by the uplink interface to a plurality of downlink interfaces and transmitting the optical signals by the downlink interfaces; of course, the first optical splitter and the second optical splitter may also be configured to transmit optical signals received by the plurality of downlink interfaces to the uplink interface, and the uplink interface transmits the optical signals. It should be noted that the first optical splitter and the second optical splitter each include an upstream interface, but the downstream interface may include a plurality of optical splitters (first optical splitter or second optical splitter) such as 1. The uplink interface here refers to an interface for connecting upper layer network equipment in an optical network system, for example, the uplink interface of the first-stage optical splitter refers to an interface for connecting an optical line terminal, and the uplink interface of the second-stage optical splitter refers to an interface for connecting the first-stage optical splitter; the downlink interface refers to an interface for connecting with lower-layer network equipment in an optical network system, for example, the downlink interface of the first-stage optical splitter refers to an interface for connecting with the second-stage optical splitter, and the downlink interface of the second-stage optical splitter refers to an interface for connecting with a terminal. The terminal may be a mobile phone, a computer, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a smart phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a laptop computer, a handheld communication device, a handheld computing device, a satellite radio device, a wireless modem card, a Set Top Box (STB), a Customer Premises Equipment (CPE), and/or other devices for communicating over a wireless system.

The optical network unit is used for receiving an optical signal sent by an optical line terminal and selectively receiving the received optical signal; the optical network unit can also be used for sending a response signal to the optical line terminal after receiving the optical signal; of course, the optical network unit may also send the ethernet data of the terminal to the optical line terminal.

It should be noted that the network topology of the optical transmission network shown in fig. 1 is only exemplary, and in practice, other first-stage optical splitters may be connected below the optical line terminal, and these first-stage optical splitters may be connected with the optical network unit through second-stage optical splitters; of course, the first-stage optical splitter may also be connected with the optical network unit without forwarding of the second-stage optical splitter. The same number of optical network units connected below each secondary optical splitter shown in fig. 1 is merely an example, and in practice, the number of optical network units connected below each secondary optical splitter may be different.

Fig. 2 is a schematic flow chart of a method for detecting an abnormal performance of an optical splitter according to an embodiment of the present disclosure, where as shown in the figure, the method for detecting an abnormal performance of an optical splitter may include:

and S101, acquiring the optical signal intensity of the ONU for N times within a preset time period, wherein N is more than or equal to 2.

Optionally, the optical signal intensity of the optical network unit ONU may be collected by a signal collecting device, and the signal collecting device may collect the optical signal intensities of all the optical network units ONU in the optical network system.

It should be noted that the signal acquisition device may be a built-in probe of the ONU, may also be an optical power meter, and may also be other devices for acquiring the intensity of the optical signal, which is not limited in this embodiment of the present application. In addition, in the process of acquiring the optical signal intensity, the signal acquisition device can acquire data in a preset time period, and the optical splitter performance abnormity detection device receives the data in real time; or the signal acquisition device acquires data in real time, and the optical splitter performance abnormity detection device receives data in preset time intervals.

Optionally, after obtaining the data of the optical signal intensity, a cleaning operation of the data may be performed, as shown in fig. 3, including:

step S1011, removing the value of which the range is smaller than the first preset value;

step S1012, removing the value of the overrun threshold larger than the second preset value;

step S1013, removing the value of the overrun duty ratio threshold larger than a third preset value;

and step S1014, acquiring the cleaned optical signal intensity data.

Alternatively, noise data may occur due to the detection factors of the detection device itself, and the presence of such noise data may affect the final detection result. The range difference is a value obtained by subtracting the minimum value from the maximum value of the optical signal intensity in the preset time period, and the dispersion degree of the optical signal intensity data can be reduced to an expected range by removing the value with the range difference smaller than the first preset value; the overrun threshold is | sample value-average value |/average value, which is the threshold value of jump data for judging whether the jump data belongs to noise in the optical signal intensity data; the overrun occupation threshold is the overrun sample number/total sample number, which reflects the jump frequency of the optical signal strength data.

Preferably, the first preset value is 1dbm, the second preset value is 0.15, and the third preset value is 0.01.

It should be noted that, the order of the data cleaning steps may be changed, or other data cleaning steps may also be used, and any method capable of playing a role of denoising may be used, which is not limited in this embodiment of the present application. The specific preset value is a relevant standard threshold of the optical signal intensity determined by those skilled in the art according to signal transmission, so as to determine threshold data that does not affect the final determination result.

Step S102, obtaining, in the ONUs of the optical network system, at least two target ONUs whose optical signal intensities are continuously reduced N times, and if the difference values of the reduction amplitudes between the optical signal intensities of the at least two target ONUs are both smaller than a first threshold value, determining that a target optical splitter to which the at least two target ONUs are directly connected together is an optical splitter with abnormal performance.

Further, the step of determining that the target optical splitter to which the at least two target ONUs are directly connected together is an optical splitter with abnormal performance includes: searching a target optical splitter connected with the target ONU in a preset first corresponding relation between the ONU and the optical splitter connected with the ONU; and if at least two target optical splitters which are directly connected with the target ONU together exist, determining that the target optical splitters are abnormal performance optical splitters.

Optionally, because the optical network units ONU are directly connected under the optical splitter, when performance of one optical splitter is abnormal, all the optical network units ONU connected under the optical splitter will have waveform degradation of the same degree, so that positioning determination can be performed. However, since continuous data reduction of multiple optical network units may be a cause of the device itself, when it is detected that the phenomenon of continuous data reduction of multiple optical network units occurs, it is not possible to simply draw a conclusion from the connection relationship that an optical splitter commonly connected to multiple optical network units is an optical splitter with abnormal performance, and it is also necessary to calculate a difference value of reduction amplitude of data between multiple optical network units to further determine a performance state of the optical splitter.

Exemplarily, referring to fig. 1, taking a secondary optical splitter 1-1 and an optical network unit to which the secondary optical splitter belongs as an example, when it is detected that the intensities of N times of optical signals of the optical network units 1-1-1, 1-1-2, and 8230are continuously reduced, and 1-1-N of the optical network units are continuously reduced, the correlation coefficients of the optical network units 1-1-1, 1-1-2, and 8230are calculated by using a pearson coefficient algorithm, the correlation degree between the optical network units is determined according to the calculation result of the correlation coefficients, and if the correlation degree is higher than a first threshold, the secondary optical splitter 1-1 is determined to be an optical splitter with abnormal performance.

The pearson coefficient is defined as the quotient of the covariance and the standard deviation between two variables and is calculated as:

the determination result of the correlation coefficient is usually obtained by comparing the following table:

TABLE 1

Correlation coefficient	Determination result
		0.8-1.0	Very strong correlation
0.6-0.8	Strong correlation
		0.4-0.6	Moderate degree of correlation
0.2-0.4	Weak correlation
		0.0-0.2	Very weak or no correlation

Take the example that the two-stage optical splitter 1-1 has 3 target ONUs. The 3 target ONUs are respectively A, B and C, and three groups of correlation coefficients are respectively calculated by using a Pearson coefficient algorithm: corrAB, corrAC, corrBC. In the present embodiment, the first threshold is 0.9, and when the correlation coefficients corrAB, corrAC, corrBC are all greater than 0.9, the secondary spectrometer 1-1 is calibrated as a performance anomaly spectrometer.

It should be noted that the value of the first threshold is between 0.8 and 1.0, and is self-established according to the precise requirement of the person skilled in the art.

Further, the optical splitter in the optical network system further includes at least one parent optical splitter, and if the target optical splitter is directly connected to the parent optical splitter, the target optical splitter is a sub-target optical splitter, and the method further includes: and determining that the parent optical splitter directly connected with the at least two sub-target optical splitters in common is the optical splitter with abnormal performance.

Optionally, when the detected at least two target optical splitters are also directly connected to the same parent optical splitter, the difference of the reduction amplitudes between the optical signal intensities of at least two target ONUs existing under the at least two target optical splitters is smaller than a first threshold, that is, the optical splitter with abnormal performance is determined, then a corresponding target ONU is optionally selected from the optical splitters with abnormal performance connected to the parent optical splitter, and if the difference of the reduction amplitudes between the optical signal intensities of the selected target ONUs is smaller than a second threshold, the parent optical splitter is determined to be the optical splitter with abnormal performance.

For example, referring to fig. 1, taking a first-stage optical splitter 1, a second-stage optical splitter 1-2, and an optical network unit to which the first-stage optical splitter 1, the second-stage optical splitter 1-1, and the second-stage optical splitter 1-2 belong as an example, after it is determined that the second-stage optical splitter 1-1 and the second-stage optical splitter 1-2 are both performance-abnormality optical splitters, a correlation coefficient between the two target ONUs is calculated by using a pearson coefficient algorithm, a correlation degree between the second-stage optical splitters is determined according to a calculation result of the correlation coefficient, if the correlation degree is higher than a second threshold, the first-stage optical splitter 1 is determined to be a performance-abnormality optical splitter, and a result of the correlation degree is determined as shown in table 1.

Take the example of the first-stage optical splitter 1 having 3 second-stage optical splitters with abnormal performance. Respectively taking any target ONU belonging to a second-level optical splitter with abnormal performance, wherein 3 target ONUs are respectively A, B and C, respectively calculating correlation coefficients among optical signal intensity data corresponding to the 3 target ONUs by using a Pearson coefficient algorithm, and the correlation coefficients corresponding to three groups are as follows: corrAB, corrAC, corrBC.

In this embodiment, the second threshold is 0.9, and when the correlation coefficients corrAB, corrAC, and corrBC are all greater than 0.9, the first-stage optical splitter 1 is calibrated as an anomalous performance optical splitter.

It should be noted that the value of the second threshold is between 0.8 and 1.0, which is determined by the precise requirement of the person skilled in the art.

Further, the optical network system further includes an optical line terminal, where the optical line terminal is connected to at least one optical splitter, and the method further includes: searching a port of an optical line terminal connected with the abnormal optical splitter in a preset second corresponding relation between the optical splitter and the connected optical line terminal; and if the port of the optical line terminal directly connected with at least two abnormal optical splitters is existed, determining that the port of the optical line terminal is the performance abnormal port.

Optionally, when the detected at least two target optical splitters are further directly connected to a port of the same optical line terminal, it is determined that the difference values of the reduction amplitudes between the optical signal intensities of at least two target ONUs existing under the at least two target optical splitters are smaller than a first threshold, that is, both the at least two target optical splitters are performance-abnormal optical splitters, then a corresponding target ONU is selected from the performance-abnormal optical splitters connected to the port of the optical line terminal, and if the difference values of the reduction amplitudes between the optical signal intensities of the selected target ONUs are smaller than a third threshold, it is determined that the port of the optical line terminal is a performance-abnormal port.

For example, referring to fig. 1, taking an optical line terminal, a first-stage optical splitter 1, a first-stage optical splitter 2, and optical network units to which the first-stage optical splitter 1 and the first-stage optical splitter 2 belong as examples, after it is determined that the first-stage optical splitter 1 and the first-stage optical splitter 2 are both performance-abnormal optical splitters, one of target ONUs subordinate to the first-stage optical splitter 1 and the first-stage optical splitter 2 is selected, a correlation coefficient between the two target ONUs is calculated by using a pearson coefficient algorithm, a correlation degree between the first-stage optical splitters is determined according to a calculation result of the correlation coefficient, if the correlation degree is higher than a third threshold, it is determined that a terminal port of the optical line terminal to which the first-stage optical splitter 1 and the first-stage optical splitter 2 are connected together is a performance-abnormal port, and a result of the correlation degree is determined as shown in table 1.

Take the first-stage optical splitter with 3 performance anomalies at the optical line terminal port as an example. Respectively taking any target ONU which belongs to a first-level optical splitter with abnormal performance, wherein 3 target ONUs are respectively A, B and C, respectively calculating correlation coefficients among optical signal intensity data corresponding to the 3 target ONUs by using a Pearson coefficient algorithm, and the corresponding three groups of correlation coefficients are as follows: corrAB, corrAC, corrBC.

In this embodiment, the third threshold is 0.9, and when the correlation coefficients corrAB, corrAC, and corrBC are all greater than 0.9, the olt port is marked as an abnormal-performance port.

It should be noted that the value of the third threshold is between 0.8 and 1.0, and is self-established according to the precise requirement of those skilled in the art.

Exemplarily, a schematic flow chart of the performance anomaly determination on the port of the optical line terminal is shown in fig. 4, and in this embodiment, taking the presence of the two-stage optical splitter as an example, the process includes:

step S201, a first corresponding relationship between the preset ONU and the connected optical splitter and a second corresponding relationship between the optical splitter and the connected optical line terminal are obtained.

Optionally, both the correspondence between the ONU and the connected optical splitter and the correspondence between the optical splitter and the connected optical line terminal are stored in a database in advance.

Step S202, judging whether the variation amplitude of the optical signal intensity of the ONU under the same secondary optical splitter is similar, if not, judging that the ONU has the problem of the ONU itself and is not the optical splitter; if so, go to step S203.

Step S203, judging whether the variation amplitudes of the optical signal intensities of the ONUs under different second-stage optical splitters under the same-stage first-stage optical splitter are similar, and if not, judging that the performance of the second-stage optical splitter is abnormal; if so, go to step S204.

Step S204, judging whether the variation amplitudes of the optical signal intensities of the ONUs under different first-level optical splitters at the port of the same optical line terminal are similar, and if not, judging that the performance of the first-level optical splitter is abnormal; if the port performance of the optical line terminal is similar to the port performance of the optical line terminal, judging that the port performance of the optical line terminal is abnormal.

Optionally, after the information of the target ONU, the abnormal optical splitter, and the abnormal port is obtained, the related device information may be output for the maintenance personnel to check.

Fig. 5 is a schematic structural diagram of an optical splitter performance abnormality detection device according to an embodiment of the present application, which is applied to an optical splitter in an optical network system, where the optical network system includes at least one optical splitter and at least two optical network units ONU directly connected to each optical splitter, and the optical splitter performance abnormality detection device 30 includes:

an obtaining module 301, configured to obtain optical signal intensities of the ONU N times within a preset time period, where N is greater than or equal to 2;

the determining module 302 is configured to obtain, in ONUs of the optical network system, at least two target ONUs whose optical signal intensities are continuously reduced N times, and if a reduction amplitude difference value between the optical signal intensities of the at least two target ONUs is smaller than a first threshold, determine that a sub-target optical splitter to which the at least two target ONUs are directly connected together is an optical splitter with abnormal performance.

Optionally, the optical splitter in the optical network system further includes at least one parent optical splitter, and if the target optical splitter is directly connected to the parent optical splitter, the target optical splitter is a sub-target optical splitter, and the apparatus further includes: the determining module 302 is further configured to determine that a parent optical splitter commonly connected to the at least two sub-target optical splitters is an optical splitter with abnormal performance if the difference between the reduction amplitudes of the optical signal intensities corresponding to the at least two sub-target optical splitters is smaller than a second threshold.

Optionally, the apparatus further comprises: a searching module 303, configured to search for a target optical splitter to which the target ONU is connected, in a first correspondence between preset ONUs and connected sub optical splitters; the determining module 302 is further configured to determine that the target optical splitter is an optical splitter with abnormal performance if at least two target Optical Network Units (ONUs) are directly connected to the target optical splitter.

Optionally, the optical network system further includes an optical line terminal, where the optical line terminal is connected to at least one optical splitter, and the apparatus further includes: the searching module 303 is further configured to search, in a second correspondence between a preset optical splitter and a connected optical line terminal, a port of the optical line terminal to which the abnormal optical splitter is connected; the determining module 302 is further configured to determine that the port of the optical line terminal is an abnormal performance port if there is a port of the optical line terminal to which at least two abnormal optical splitters are directly connected together, and the difference values of the reduction amplitudes between the optical signal intensities corresponding to the at least two abnormal optical splitters are both smaller than a third threshold.

Optionally, as shown in fig. 6, the apparatus further includes: and the output module 304 is configured to output exception information, which includes the target ONU, the exception splitter, and the exception port.

Fig. 7 is a schematic structural diagram of another optical splitter performance abnormality detection apparatus according to an embodiment of the present application, including a memory 41, a processor 42, a bus 43, and a communication interface 44; the memory 41 is used for storing computer execution instructions, and the processor 42 is connected with the memory 41 through a bus 43; when the splitter performance anomaly detection apparatus is operating, processor 42 executes computer-executable instructions stored in memory 41 to cause the splitter performance anomaly detection apparatus to perform the splitter performance anomaly detection method provided in the above-described embodiments.

In particular implementations, processor 42 (42-1 and 42-2) may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 7, as one embodiment. And as an example, the splitter performance anomaly detection apparatus may include a plurality of processors 42, such as processor 42-1 and processor 42-2 shown in fig. 7. Each of the processors 42 may be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). Processor 42 may refer herein to one or more devices, circuits, and/or processing cores that process data (e.g., computer program instructions).

The memory 41 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 41 may be self-contained and coupled to the processor 42 via a bus 43. The memory 41 may also be integrated with the processor 42.

In a specific implementation, the memory 41 is used for storing data in the present application and computer-executable instructions corresponding to software programs for executing the present application. Processor 42 may perform various functions of the splitter performance anomaly detection apparatus by running or executing software programs stored in memory 41 and invoking data stored in memory 41.

The communication interface 44 may be any device, such as a transceiver, for communicating with other devices or communication networks, such as a control system, a Radio Access Network (RAN), a Wireless Local Area Network (WLAN), etc. The communication interface 44 may include a receiving unit implementing a receiving function and a transmitting unit implementing a transmitting function.

The bus 43 may be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended ISA (EISA) bus, or the like. The bus 43 may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in FIG. 7, but this is not intended to represent only one bus or type of bus.

An embodiment of the present invention further provides a computer-readable storage medium, where the computer-readable storage medium includes a computer execution instruction, and when the computer execution instruction runs on a computer, the computer is enabled to execute the method for detecting performance anomaly of an optical splitter provided in the foregoing embodiment.

The embodiment of the present application further provides a computer program, where the computer program may be directly loaded into a memory and contains a software code, and the computer program is loaded and executed by a computer, so as to implement the method for detecting performance anomaly of an optical splitter provided in the foregoing embodiment.

Those skilled in the art will recognize that the functionality described in this disclosure may be implemented in hardware, software, firmware, or any combination thereof, in one or more of the examples described above. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.

Through the description of the foregoing embodiments, it will be clear to those skilled in the art that, for convenience and simplicity of description, only the division of the functional modules is illustrated, and in practical applications, the above function distribution may be completed by different functional modules as needed, that is, the internal structure of the apparatus may be divided into different functional modules to complete all or part of the above described functions.

In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules or units is only one logical function division, and there may be other division ways in actual implementation. For example, various elements or components may be combined or may be integrated into another device, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. Units described as separate parts may or may not be physically separate, and parts displayed as units may be one physical unit or a plurality of physical units, may be located in one place, or may be distributed to a plurality of different places. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit. The integrated unit, if implemented as a software functional unit and sold or used as a separate product, may be stored in a readable storage medium. Based on such understanding, the technical solutions of the embodiments of the present application may be essentially or partially contributed to by the prior art, or all or part of the technical solutions may be embodied in the form of a software product, where the software product is stored in a storage medium and includes several instructions to enable a device (which may be a single chip microcomputer, a chip, or the like) or a processor to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk or an optical disk, and various media capable of storing program codes.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An optical splitter performance anomaly detection method is applied to an optical splitter in an optical network system, wherein the optical network system comprises at least one optical splitter and at least two Optical Network Units (ONU) directly connected with each optical splitter, and the method comprises the following steps:

obtaining the optical signal intensity of the ONU for N times within a preset time period, wherein N is more than or equal to 2;

in the ONUs of the optical network system, at least two target ONUs with continuously reduced optical signal intensity for N times are obtained, and if the reduction amplitude difference values between the optical signal intensities of the at least two target ONUs are smaller than a first threshold value, a target optical splitter which is directly connected with the at least two target ONUs together is determined to be an optical splitter with abnormal performance.

2. The method of claim 1, wherein the optical splitter in the optical network system further comprises at least one parent optical splitter, and if the target optical splitter is directly connected to the parent optical splitter, the target optical splitter is a sub-target optical splitter, and the method further comprises:

if the difference of the reduction amplitudes between the optical signal intensities corresponding to the at least two sub-target optical splitters is smaller than a second threshold value;

and determining that the parent optical splitter directly connected with the at least two sub-target optical splitters together is an abnormal-performance optical splitter.

3. The method of claim 1, wherein the step of determining that the target optical splitter to which the at least two target ONUs are commonly directly connected is a performance-anomaly optical splitter comprises:

searching a target optical splitter connected with the target ONU in a preset first corresponding relation between the ONU and the optical splitter connected with the ONU;

and if at least two target optical splitters which are directly connected with the target ONU together exist, determining that the target optical splitters are abnormal performance optical splitters.

4. A method according to claim 2 or 3, wherein the optical network system further comprises an optical line terminal, the optical line terminal being connected to at least one optical splitter, the method further comprising:

searching a port of the optical line terminal connected with the abnormal optical splitter in a preset second corresponding relation between the optical splitter and the connected optical line terminal;

and if at least two ports of the optical line terminal directly connected with the abnormal optical splitters together exist, and the difference values of the reduction amplitudes between the optical signal intensities corresponding to the at least two abnormal optical splitters are smaller than a third threshold value, determining that the ports of the optical line terminal are performance abnormal ports.

5. An optical splitter performance anomaly detection device is applied to an optical splitter in an optical network system, wherein the optical network system comprises at least one optical splitter and at least two Optical Network Units (ONU) directly connected with each optical splitter, and the device comprises:

the obtaining module is used for obtaining the optical signal intensity of the ONU for N times within a preset time period, wherein N is more than or equal to 2;

and the judging module is used for obtaining at least two target ONUs with continuously reduced optical signal intensity for N times in the ONUs of the optical network system, and if the reduction amplitude difference values between the optical signal intensities of the at least two target ONUs are smaller than a first threshold value, determining that a sub-target optical splitter which is directly connected with the at least two target ONUs together is an optical splitter with abnormal performance.

6. The apparatus of claim 5, wherein the optical splitter in the optical network system further comprises at least one parent optical splitter, and if the target optical splitter is directly connected to the parent optical splitter, the target optical splitter is a sub-target optical splitter, the apparatus further comprising:

the determination module is further configured to determine that a parent optical splitter commonly connected to the at least two sub-target optical splitters is an optical splitter with abnormal performance if the difference between the reduction amplitudes of the optical signal intensities corresponding to the at least two sub-target optical splitters is smaller than a second threshold.

7. The apparatus of claim 5, wherein the apparatus further comprises:

the searching module is used for searching a target optical splitter connected with the target ONU in a preset first corresponding relation between the ONU and the connected sub optical splitters;

the determination module is further configured to determine that the target optical splitter is an optical splitter with abnormal performance if at least two target Optical Network Units (ONUs) are directly connected together.

8. The apparatus according to claim 6 or 7, wherein the optical network system further comprises an optical line terminal, the optical line terminal being connected to at least one optical splitter, the apparatus further comprising:

the searching module is further configured to search a port of the optical line terminal to which the abnormal optical splitter is connected in a preset second corresponding relationship between the optical splitter and the connected optical line terminal;

the determining module is further configured to determine that the port of the optical line terminal is an abnormal-performance port if there is a port of the optical line terminal to which at least two abnormal optical splitters are directly connected together, and both of the reduction amplitude differences between the optical signal intensities corresponding to the at least two abnormal optical splitters are smaller than a third threshold.

9. An optical splitter performance abnormality detection apparatus, characterized by comprising:

a memory;

and a processor coupled to the memory, the processor configured to perform the method of any of claims 1-4 based on instructions stored in the memory.

10. A computer-readable storage medium having computer program instructions stored thereon for execution by one or more processors to perform the steps of implementing the method of any one of claims 1-4.

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