CN117176248A - Method and device for positioning optical signal fault in passive optical network - Google Patents

Abstract

The application discloses a method and a device for positioning optical signal faults in a passive optical network, belonging to the field of communication. The method comprises the following steps: the method comprises the steps that target equipment obtains a first target optical network unit of which the optical receiving power in an optical wiring network is in a specified optical receiving power range; the target equipment determines a second target optical network unit meeting specified conditions from the first target optical network unit; the target device determines a location of an optical signal failure in an optical wiring network based on the second target optical network unit.

Description

Method and device for positioning optical signal fault in passive optical network

Technical Field

The application belongs to the field of communication, and particularly relates to a method and a device for positioning optical signal faults in a passive optical network.

Background

When the optical fiber is used for entering a home, the passive optical network is usually adopted, and only the optical line terminal equipment at the transmitting position of the entering signal and the optical network unit equipment at the receiving position of the entering signal are respectively connected with a power supply, and the middle part can be transmitted by using a powerless device. When the network signal transmission is unstable, the signal receiving position is easy to generate abnormal fluctuation phenomenon, and the user surfing experience is further affected.

In the prior art, an optical power meter is usually used manually to detect each node on a passive optical network, so that the fault position is determined, and the fault detection mode is often low in efficiency.

Disclosure of Invention

The embodiment of the application provides a method, a device and electronic equipment for positioning optical signal faults in a passive optical network, which can solve the problem of lower efficiency caused by manually detecting faults in the related technology.

In a first aspect, a method for locating an optical signal fault in a passive optical network is provided, including:

acquiring a first target optical network unit of which the optical receiving power is in a specified optical receiving power range in an optical wiring network;

determining a second target optical network unit of which the optical receiving power meets a specified condition from the first target optical network unit;

and determining the position of the optical signal fault in the optical wiring network based on the second target optical network unit.

In a second aspect, an apparatus for locating an optical signal fault in a passive optical network is provided, including:

the acquisition module is used for acquiring a first target optical network unit of which the optical receiving power is in a specified optical receiving power range in the optical distribution network;

the determining module is used for determining a second target optical network unit with the optical receiving power meeting the specified condition from the first target optical network unit; and determining the position of the optical signal fault in the optical wiring network based on the second target optical network unit.

In a third aspect, there is provided an electronic device comprising: a processor and a memory storing a program which when executed by the processor realizes the steps in the method according to the first aspect.

In the embodiment of the application, a target device acquires a first target optical network unit of which the optical receiving power in an optical wiring network is within a specified optical receiving power range; the target equipment determines a second target optical network unit of which the optical receiving power meets a specified condition from the first target optical network unit; the target device determines a location of an optical signal failure in an optical wiring network based on the second target optical network unit. In this way, in the whole process, the target device determines the second target optical network unit with the optical receiving power meeting the specified condition from the first target optical network unit, and determines the position of the optical signal fault in the optical wiring network based on the second target optical network unit, without manually participating in fault positioning, compared with the detection of optical power by manually using an optical power meter to each node in the passive optical network in the related art, the efficiency of optical signal fault detection in the passive optical network is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1-1 is a network architecture diagram of a passive optical network according to an embodiment of the present application;

fig. 1-2 are architecture diagrams for locating an optical signal fault in a passive optical network according to an embodiment of the present application;

fig. 2 is a flowchart of a method for locating an optical signal fault in a passive optical network according to an embodiment of the present application;

fig. 3 is a flowchart of another method for locating an optical signal fault in a passive optical network according to an embodiment of the present application;

fig. 4 is a flowchart of another method for locating an optical signal fault in a passive optical network according to an embodiment of the present application;

fig. 5 is a flowchart of another method for locating an optical signal fault in a passive optical network according to an embodiment of the present application;

fig. 6 is a flowchart of a method for locating an optical signal fault in another passive optical network according to an embodiment of the present application;

Fig. 7 is a block diagram of an apparatus for locating an optical signal fault in a passive optical network according to an embodiment of the present application;

fig. 8 is a schematic diagram of an electronic device according to an embodiment of the present application.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type, and are not limited to the number of objects, such as the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

For a better understanding of the present application, the environment in which embodiments of the present application are implemented will first be explained before explaining the embodiments of the present application. Fig. 1-1 is a schematic diagram of a passive optical network (Passive Optical Network, abbreviated as PON) according to an embodiment of the present application, where, as shown in fig. 1-1, the passive optical network mainly includes an optical line terminal (Optical Line Terminal, abbreviated as OLT) device, an optical network unit (Optical Network Unit, abbreviated as ONU) device, and an optical distribution network (Optical Distribution Network, abbreviated as ODN) that provides an optical transmission channel between the optical line terminal and the optical network unit. The optical line terminal comprises a plurality of passive optical network ports, and one passive optical network port can be connected with a plurality of optical network unit devices. Regarding the passive optical network, an optical signal is sent from an optical line terminal through a passive optical network port, passes through an optical line network, reaches an optical network unit, and a plurality of optical network unit devices under one passive optical network port can simultaneously receive the optical signal from the optical line terminal, thereby achieving the purpose of broadcasting through the passive optical network port. The embodiment of the application can be used for detecting faults of an optical network unit for positioning the received signals, a passive optical network port for completing signal broadcasting and an optical line terminal device for transmitting the signals. In practical situations, an optical splitter may be disposed on the optical distribution network, where one end of the optical splitter is connected to one passive optical network port, and the other end of the optical splitter is connected to a plurality of optical network units at the same time, and through connection of the optical splitter, one passive optical network port may broadcast signals to more optical network units. Furthermore, the embodiment of the application can also be used for fault positioning processing between the optical splitter and the optical network unit which also complete the signal broadcasting function.

In the broadcasting process, if the intermediate node fails, the propagation of the optical signal is affected, so that the user surfing experience is affected. In the prior art, an optical power meter is usually used manually to detect each node on a passive optical network, so that the fault cause is determined, and the mode is low in efficiency and high in positioning difficulty.

The embodiment of the application provides a method for positioning optical signal faults in a passive optical network, in particular to a method for acquiring a first target optical network unit with optical receiving power within a specified optical receiving power range by target equipment; the target equipment determines a second target optical network unit meeting specified conditions from the first target optical network unit; the target device determines a location of an optical signal failure in an optical wiring network based on the second target optical network unit. In this way, in the whole process, the target device determines the second target optical network unit with the optical receiving power meeting the specified condition from the first target optical network unit, and determines the position of the optical signal fault in the optical wiring network based on the second target optical network unit, without manually participating in fault positioning, compared with the detection of optical power by manually using an optical power meter to detect the optical power of each stage of nodes in the passive optical network in the related art, the efficiency of optical signal fault detection in the passive optical network is improved.

Fig. 1-2 are architecture diagrams for locating optical signal faults in a passive optical network according to an embodiment of the present application, and it should be understood that fig. 1-2 are only examples, and are not limiting. As shown in fig. 1-2: the acquisition server acquires the optical receiving power of the optical network unit connected with the optical line terminal through the optical line terminal. A specific way to collect the optical receiving power of the optical network unit may be: the terminal integrated management system (Integrated Terminal Management System, abbreviated as ITMS) on the collection server collects the optical receiving power of the optical network unit through a simple network management protocol (Simple Network Management Protocol, abbreviated as SNMP). After the acquisition server finishes acquisition, the acquired data are sent to an analysis server, the analysis server preprocesses the acquired data, for example, effective data are screened out, the relation among the effective data is analyzed, and the preprocessing result is sent to a dispatch system. The dispatch system further analyzes according to the preprocessing result of the analysis server, and finally obtains an analysis result (namely, a fault reason). And then, reporting the dispatch system to related departments responsible for the fault points according to the fault reasons, and carrying out specific field investigation and correction on the fault points by the related departments. In practical cases, the collection server, the analysis server and the dispatch system may be one server or may be multiple servers, which is not particularly limited in the embodiment of the present application.

The method for positioning the optical signal fault in the passive optical network provided by the embodiment of the application can be executed by the target equipment, wherein the target equipment can be one electronic equipment or a plurality of electronic equipment. That is, the method for locating the optical signal fault in the passive optical network provided by the embodiment of the application can be executed by one electronic device or can be executed by a plurality of electronic devices in a mutually matched manner. The electronic device may be, for example, a terminal device such as a notebook computer or a tablet, or may be a server.

Fig. 2 is a flowchart of a method for locating an optical signal fault in a passive optical network according to an embodiment of the present application. As shown in fig. 2, the method for positioning an optical signal fault in a passive optical network according to the embodiment of the present application includes the following steps:

step 210, obtaining a first target optical network unit with an optical receiving power within a specified optical receiving power range in an optical distribution network;

in embodiments of the present application, the specified optical power range may be any detectable optical power range, for example, between-35 decibels (i.e., -35 dbm) per milliwatt and-7 decibels (i.e., -7 dbm) per milliwatt. The first target optical network unit may be all optical network units in the optical distribution network, or may be a part of the specified optical network units obtained according to specified conditions, or may be a single optical network unit. The embodiment of the application does not specifically limit the number of the first target optical network units.

In the embodiment of the application, the first target optical network unit with the optical receiving power within the specified optical receiving power range can be obtained by screening the optical receiving power ranges of all the optical network units in the optical wiring network according to the specified optical receiving power ranges after the target equipment obtains the optical receiving power ranges of all the optical network units in the optical wiring network. Accordingly, the target device may acquire the optical receiving power ranges of all the optical network units in the optical distribution network, and may directly acquire and collect and classify the optical receiving power ranges from the inside of the optical network units through the target device, or may acquire the optical receiving power ranges from the network or the external device to which the optical network units belong through a terminal integrated management system (Integrated Terminal Management System, abbreviated as ITMS), for example, may acquire the optical receiving power ranges from the optical line terminal device or the optical distribution network through a passive optical network performance platform.

After the first target optical network unit is obtained, a further processing may be performed to further identify a second target optical network unit.

Step 220, determining a second target optical network unit with the optical receiving power meeting the specified condition from the first target optical network units;

in the embodiment of the present application, the specified condition may be any condition regarding the light receiving power, for example, in a range where a certain light receiving power is specified, or the like.

The first target optical network unit and the second target optical network unit may be one optical network unit or may be multiple optical network units, which is not particularly limited in the embodiment of the present application.

After the second target optical network unit is obtained, the position of the optical signal fault in the optical cable network can be determined through the second target optical network unit.

And step 230, determining the position of the optical signal fault in the optical distribution network based on the second target optical network unit.

In embodiments of the present application, determining the location of an optical signal failure in an optical wiring network may be accomplished in a number of different ways. For example: acquiring the optical network units under the same passive optical network port, wherein if the number of problems of the optical network unit equipment under the same passive optical network port is small, the problems of the optical network unit equipment can be considered. If the number of the optical network units with problems is large, the problems of the network devices with the passive optical network ports and even higher layers can be considered, and the problem of the fault reasons can be further solved according to the fault reasons.

In the embodiment of the application, a target device acquires a first target optical network unit of which the optical receiving power in an optical wiring network is within a specified optical receiving power range; the target equipment determines a second target optical network unit meeting specified conditions from the first target optical network unit; the target device determines a location of an optical signal failure in an optical wiring network based on the second target optical network unit. In this way, in the whole process, the target device determines the second target optical network unit with the optical receiving power meeting the specified condition from the first target optical network unit, and determines the position of the optical signal fault in the optical wiring network based on the second target optical network unit, without manually participating in fault positioning, compared with the detection of optical power by manually using an optical power meter to detect the optical power of each stage of nodes in the passive optical network in the related art, the efficiency of optical signal fault detection in the passive optical network is improved.

Fig. 3 is a flowchart of a method for locating an optical signal fault in a passive optical network according to an embodiment of the present application. As shown in fig. 3, the method for positioning an optical signal fault in a passive optical network according to the embodiment of the present application includes the following steps:

step 310, a first target optical network unit of which the optical receiving power is within a specified optical receiving power range in an optical distribution network is obtained; the first target optical network unit is an optical network unit under the same passive optical network port;

step 320, determining a second target optical network unit with optical receiving power smaller than a threshold value from the optical network units under the same passive optical network port; wherein the threshold value is a value set for a light receiving power that does not reach the standard;

in the embodiment of the present application, the threshold may be any optical receiving power value, for example, when the specified optical receiving power is-35 dbm to-7 dbm, the threshold may be-27 dbm, that is, the optical network unit with the optical receiving power between-27 dbm and-35 dbm is the second target optical network unit.

After confirming the second target optical network unit, fault location can be performed according to the second target optical network unit.

Step 330 of determining a ratio of the number of the second target optical network units to the number of the first target optical network units;

Step 340, if the ratio is greater than a first preset value, determining that the passive optical network port fails;

in the embodiment of the present application, the first preset value may be any number, and may be configured statically by a person, or may be a dynamic value obtained by calculating by a normalization indication function according to a sorting process by using a fault cause processed in a period of time. If the ratio is not greater than the first preset value, the second target optical network unit may be considered to be a fault of itself or perform further fault detection.

When the passive optical network port is confirmed to be faulty, the fault reason can be reported to related departments responsible for the fault point, and the related departments can more accurately solve the problems, such as checking the winding and ageing conditions of the optical fiber at the passive optical network port, and replacing the optical fiber or other treatments according to the conditions.

Step 350, determining a ratio of the number of target passive optical network ports in the target optical line terminal to the total number of passive optical network ports of the target optical line terminal, where the target passive optical network ports are a failed passive optical network port in the plurality of passive optical network ports of the target optical line terminal.

Wherein the optical distribution network comprises a target optical line terminal.

And step 360, if the ratio is greater than a second preset value, determining that the target optical line terminal equipment fails.

When the target optical line terminal equipment fails, the target equipment can also report to related departments, and the related departments can check the optical line terminal equipment to determine whether the processing methods such as optical module replacement or equipment replacement are needed. In the embodiment of the application, if the ratio is not greater than the second preset value, the failure of the passive optical network port can be considered, the target equipment reports the failure reason, and the next step of investigation is manually performed.

In the embodiment of the present application, the second preset value may be the same as or different from the first preset value, which is not particularly limited in the embodiment of the present application.

For a better understanding of embodiments of the present application, examples are further provided below for understanding. Table 1 may be optical received power data under an optical network unit under the same target optical line terminal device at a certain moment provided in the embodiment of the present application, where the data are shown in table 1:

TABLE 1

The threshold value may be-27 dbm when the optical reception power is specified to be-35 dbm to-7 dbm. That is, the optical network unit with the optical reception power between-27 dbm and-35 dbm is the second target optical network unit, and according to table 1, the optical network unit 2 does not participate in the calculation, and the optical network unit 4, the optical network unit 5, and the optical network unit 9 are all the second target optical network units. When the first preset value is 0.3, the ratio of the number of the second target optical network units to the number of the first target optical network units is 2/4=0.5, and the fault may be determined to be the first passive optical network port (i.e., the passive optical network port 1). Further, according to step 360, assuming that the second preset value is 0.4, the ratio of the number of the target pon ports in the target olt to the total number of the pon ports in the target olt is 1/2=0.5, it may be determined that the olt 1 fails, affecting the pon ports 1, and further causing an abnormality in the optical receiving powers of the onu 4 and onu 5.

According to the embodiment of the application, the positioning standard is more objectified by determining the ratio of the number of the second target optical network units to the number of the first target optical network units and the ratio of the number of the target passive optical network ports in the target optical line terminal to the total number of the passive optical network ports of the target optical line terminal, so that the target equipment can more accurately and automatically position the cause of the fault, and compared with the manual positioning in the related art, the efficiency and the accuracy of positioning the fault point are improved.

Fig. 4 is a flowchart of a method for locating an optical signal fault in a passive optical network according to an embodiment of the present application. As shown in fig. 4, the method for positioning an optical signal fault in a passive optical network according to the embodiment of the present application includes the following steps:

step 410, obtaining a first target optical network unit with an optical receiving power within a specified optical receiving power range in an optical distribution network; the first target optical network unit is an optical network unit under the same passive optical network port;

step 420, determining a second target optical network unit with abnormal fluctuation of optical receiving power from the first target optical network units; wherein, for any one of the first target optical network units, the abnormal fluctuation of the optical receiving power is determined by at least one of the following ways;

In the embodiment of the present application, the step 420 of judging the abnormal fluctuation of the light receiving power is judged by at least one of the steps 430, 440 and 450.

Step 430, the jitter value of the optical receiving power of the optical network unit in the first time period is greater than a first threshold;

in the embodiment of the present application, the first threshold may be any number, or may be equal to other thresholds and/or preset values in the embodiment of the present application, which is not specifically limited in the embodiment of the present application. The calculation formula of the jitter value of the optical receiving power of the optical network unit in the first time period is as follows:

j is a jitter value of the optical receiving power of the optical network unit in a first time period, where t1=acquisition times N is an acquisition unit time T;

p is the optical power of the optical network unit in each acquisition unit time, and a is the average value of the optical receiving power of a plurality of optical network units under the same passive optical network port in the same acquisition unit time.

For a better understanding of the calculation of the jitter values, examples are given below. Assuming that the acquisition unit time t is one hour, the acquisition times N are 3 times, and the first time period is 3 hours. The information collected from one early morning to three early morning is shown in table 2:

TABLE 2

As shown in table 2, P is-26, a is (-26-36-16-32)/4= -25, P-a= -26- (-25) = 1 at one early morning, P-a= -3 at two early morning, and P-a= -12.75 at three early morning, and the jitter value of the optical network unit 1 is(taking the decimal point one after the other). Assuming that the first threshold is 3, the jitter value of the optical receiving power of the optical network unit in the first time period is greater than the first threshold, the optical network unit may be considered as the second target optical network unit, i.e. the optical network unit 1 shown in table 2 is the second target optical network unit.

Step 440, the difference between the maximum value and the minimum value of the optical receiving power of the optical network unit in the second time period is greater than the second threshold;

in the embodiment of the present application, the second time period may be any time period, and the second time period may be the same time period as the first time period or may be a different time period. The second threshold may be any number, assuming that the second threshold is 10.

To better understand step 440, as shown in table 2, it is assumed that the optical network unit is within the second time period, from one early morning to three early morning, and the maximum value of the optical reception power of the optical network unit 2 is-17 dbm, and the minimum value is-25 dbm in the second time period (it is assumed that only data in the range of-7 dbm to-35 dbm is considered in step 210 herein), and-17- (-25) =8 dbm, and the optical network unit is considered to not satisfy the specified condition and cannot be determined as the second target optical network unit because it is smaller than the second threshold.

Step 450, the difference between the average value of the optical receiving power of the optical network unit in the third time period and the average value of the optical receiving power of all the optical network units in the first target optical network unit in the third time period is smaller than a third threshold;

in the embodiment of the present application, the third time period may be any time period, and the same time period as the first time period and/or the second time period may be the same time period or different time periods, which is not specifically limited in the embodiment of the present application. The third threshold may be any natural number, and may be the same as or different from the first threshold and/or the second threshold, which is not specifically limited in the embodiment of the present application.

For a better understanding of step 450, it may be assumed that the third threshold is-5. As shown in table 2, assuming that the third time period is from one early morning to three early morning, the average value of the optical receiving powers of the optical network units 3 in the third time period is (-16-18-10)/3= -14.7 (taking the last digit of the decimal point), and the average value of the optical receiving powers of all the optical network units in the first target optical network unit in the third time period is (-26-16-34-36-17-25-16-18-10-32-19-16)/12= -22.1 (taking the last digit of the decimal point), further calculating that-14.7- (-22.4) = 7.4, and if the average value is greater than the third threshold, it is considered that the optical network unit does not meet the specified condition and cannot be determined as the second target optical network unit.

Step 460 of determining a ratio of the number of the second target optical network units to the number of the first target optical network units;

in the embodiment of the application, the ratio comprises the jitter overrun ratio of the passive optical network port and the receiving difference overrun ratio of the passive optical network port. The jitter overrun duty ratio of the passive optical network port is the ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network is equal to the ratio of the self-receiving difference overrun in the passive optical network port.

Wherein, the jitter overrun refers to that the jitter value of the optical receiving power in the first time period is greater than the first threshold (i.e. the judgment mode of step 430); the self-receiving difference exceeds the limit, which means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is greater than the second threshold (i.e. the judgment mode of step 440).

And 470, determining the position of the optical signal fault in the optical wiring network based on the ratio, wherein the position of the optical signal fault is at the second target optical network unit or the passive optical network port.

In an embodiment of the present application, based on the ratio, one implementation of determining the location of the optical signal fault in the optical wiring network may be: if the jitter overrun duty ratio of the passive optical network port is smaller than a third preset value and the received difference overrun duty ratio of the passive optical network port is smaller than a fourth preset value, determining that the position of the optical signal fault in the optical wiring network is in the second target optical network unit. When confirming that the optical signal fault is the second target optical network unit, the target equipment can directly inform related departments responsible for the fault point to check and replace the second target optical network unit equipment. If the jitter overrun duty ratio of the passive optical network port is not satisfied and is smaller than a third preset value, and the received difference overrun duty ratio of the passive optical network port is smaller than a fourth preset value, the fault source can be considered to be the passive optical network port, and the target equipment informs related departments responsible for the fault point to perform targeted inspection and processing.

In the embodiment of the application, the position of the optical signal fault in the optical wiring network is determined through the jitter overrun duty ratio of the passive optical network port and the receiving difference overrun duty ratio of the passive optical network port. In the process of confirming the optical signal fault, a calculation mode of standard deviation and extremely poor is added, so that the fluctuation condition of the optical network unit in a period of time can be obtained more accurately, and the process of confirming the optical signal fault can be enabled to have higher efficiency and accuracy.

Fig. 5 is a flowchart of a method for locating an optical signal fault in a passive optical network according to an embodiment of the present application. As shown in fig. 5, the method for positioning an optical signal fault in a passive optical network according to the embodiment of the present application includes the following steps:

step 510, obtaining a first target optical network unit with an optical receiving power within a specified optical receiving power range in an optical distribution network;

step 520, determining a second target optical network unit with no abnormal fluctuation of the optical receiving power from the first target optical network unit;

in the embodiment of the present application, the step 520 of determining that the optical receiving power does not abnormally fluctuate may also be determined by at least one of the steps 430, 440 and 450, and if at least one of the steps 430, 440 and 450 is not satisfied, the optical network unit is considered to have no abnormally fluctuating. Such as the optical network units 2 and 3 illustrated in step 440 and step 450.

Step 530, under the condition that the optical receiving power of the second target optical network unit does not abnormally fluctuate, obtaining the jitter overrun duty ratio of the passive optical network port and the receiving difference overrun duty ratio of the passive optical network port;

Step 540, if the jitter overrun ratio of the passive optical network port is greater than a fifth preset value and the received differential overrun ratio of the passive optical network port is greater than a sixth preset value, determining that the position of the optical signal fault in the optical line network is at the passive optical network port.

The jitter overrun duty ratio of the passive optical network port is a ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network port; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network port is the ratio of the self-receiving difference overrun in the passive optical network port; wherein, the jitter overrun refers to that the jitter value of the optical receiving power in the first time period is greater than the first threshold (i.e. the judgment mode of step 430); the self-receiving difference exceeds the limit, which means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is greater than the second threshold (i.e. the judgment mode of step 440).

In the embodiment of the present application, the fifth preset value and/or the sixth preset value may be any natural number, or may be the same as other preset values and/or thresholds in the embodiment of the present application. Correspondingly, the fifth preset value and/or the sixth preset value can be static data set manually, or dynamic data can be obtained by the historical data through a normalization indication function. The embodiment of the present application is not particularly limited thereto.

In the embodiment of the present application, if the jitter overrun ratio of the passive optical network port is not satisfied and is greater than a fifth preset value, and the self-receiving difference overrun ratio of the passive optical network port is greater than a sixth preset value, the fault point may be considered as an optical network unit, and the target device reports the fault cause to a related department responsible for the optical network unit for checking and further processing.

In the embodiment of the application, based on the second target optical network unit with no abnormal fluctuation of the optical receiving power, the optical signal fault is confirmed by judging the ratio of the second target optical network unit with abnormal fluctuation to the first target optical network unit, so that the fault can be more rapidly positioned when the optical network unit has no problem, but the passive optical network port or the optical line terminal equipment of the upper genus has the problem, more diversified optical signal fault conditions can be covered, and the accuracy and the comprehensiveness of the optical signal fault positioning are improved.

Fig. 6 is a flowchart of a method for locating an optical signal fault in a passive optical network according to an embodiment of the present application. As shown in fig. 6, the method for positioning an optical signal fault in a passive optical network according to the embodiment of the present application includes the following steps:

Step 610, acquiring a first target optical network unit of which the optical receiving power is within a specified optical receiving power range in the optical distribution network; the first target optical network unit is an optical network unit under the same passive optical network port;

step 615, determining a second target optical network unit with optical receiving power smaller than a threshold value from the first target optical network units; wherein the threshold value is a value set for a light receiving power that does not reach the standard;

step 620, determining a ratio of the number of the second target optical network units to the number of the first target optical network units;

step 625, if the ratio is greater than a first preset value, determining that the passive optical network port fails;

step 630, determining a ratio of the number of the target passive optical network ports in the target optical line terminal to the total number of the passive optical network ports of the target optical line terminal, where the target passive optical network ports are the passive optical network ports with faults in the multiple passive optical networks of the target optical line terminal;

step 635, if the ratio is greater than a second preset value, determining that the target optical line terminal fails;

step 640, determining a second target optical network unit with abnormal fluctuation of the optical receiving power from the first target optical network unit; wherein, for any one of the first target optical network units, the abnormal fluctuation of the optical receiving power is determined by at least one of the following ways;

The jitter value of the optical receiving power of the optical network unit in the first time period is larger than a first threshold value; the difference between the maximum value and the minimum value of the optical receiving power of the optical network unit in the first time period is larger than a second threshold value; the difference between the average value of the optical receiving power of the optical network unit in the third time period and the average value of the optical receiving power of all the optical network units in the first target optical network unit in the third time period is smaller than a third threshold value;

step 645, determining a ratio of the number of second target optical network units to the number of first target optical network units;

in the embodiment of the application, the ratio comprises the jitter overrun ratio of the passive optical network port and the receiving difference overrun ratio of the passive optical network port. The jitter overrun duty ratio of the passive optical network port is the ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network is the ratio of the self-receiving difference overrun in the passive optical network port;

Wherein, the jitter overrun refers to that the jitter value of the optical receiving power in the first time period is greater than the first threshold (i.e. the judgment mode of step 430); the self-receiving difference exceeds the limit, which means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is greater than the second threshold (i.e. the judgment mode of step 440).

Step 650, if the jitter overrun ratio of the passive optical network port is smaller than a third preset value and the received difference overrun ratio of the passive optical network port is smaller than a fourth preset value, determining that the position of the optical signal fault in the optical distribution network is in the second target optical network unit;

step 655, determining a second target optical network unit with no abnormal fluctuation of the optical receiving power from the first target optical network unit;

step 660, obtaining the jitter overrun duty ratio of the passive optical network port and the self-receiving difference overrun duty ratio of the passive optical network port;

in step 665, if the jitter overrun ratio of the passive optical network port is greater than a fifth preset value and the received differential overrun ratio of the passive optical network port is greater than a sixth preset value, determining that the position of the optical signal fault in the optical line network is at the passive optical network port.

For a better understanding of the embodiments of the present application, reference will now be made to the examples, which are not limiting.

Collecting the light receiving data of the whole network optical network unit from an optical line terminal through a passive optical network performance platform or collecting the light receiving data of the whole network optical network unit from the optical network unit through a terminal integrated management system, wherein the collecting unit time is once per hour, and twenty-four hours is a time period;

extracting light receiving data of an optical network unit in a weak light range of-35 to-27 dbm, defining the optical network unit as abnormal fluctuation according to three judging conditions of abnormal fluctuation, wherein an optical power assessment range is required to be-35 to-7 dbm, and calculation is not included in the range;

jitter overrun (i.e., the relevant description of step 430): the value of the optical network unit jitter is ≡n (i.e., the first threshold may be any natural number, here it may be assumed to be 3), defined as an optical network unit jitter overrun.

J is the jitter value of the optical network unit, and the first time period t1=the acquisition times N is the acquisition unit time T; p is the optical power of each optical network unit in the unit time of collection, and a is the average value of the optical receiving power of a plurality of optical network units in the same unit time of collection under the same passive optical network port. The decimal point remains behind with 1 decimal place.

Calculating the difference value between the optical power of the optical network unit and the average optical power in each acquisition unit time, and squaring each difference value; and then calculating the sum of squares of the differences, dividing the sum by the acquisition times, and finally opening the root number to obtain the jitter value.

Self-extinction difference overrun (i.e., the relevant description of step 440): (strongest light power-weakest light power). Gtoreq.M (i.e., the second threshold, which may be any natural number, here can be assumed to be 10), is defined as an overrun of the self-extinction difference, with a 1-bit fraction remaining after the decimal point.

The light reception difference exceeds the limit (i.e., the relevant description of step 450): and comparing the average value of the optical power of each optical network unit in each time period with the average value of the optical power of all the optical network units under the passive optical network port in each time period, and calculating the light receiving difference. The single optical network unit optical power-passive optical network port average optical power is equal to or less than X (i.e., the third threshold may be any natural number, here may be assumed to be-5), and is defined as the optical reception difference overrun.

For example: the average value of the optical power of all the optical network units hung under the passive optical network port is-17 dbm, wherein the optical power value of one optical network unit is-23 dbm. Light reception difference: -23dbm- (-17 dbm) = -6dbm, this optical network unit is defined as an out-of-limit of the optical reception difference.

After the data are obtained, the fault can be located according to the method for locating the optical signal fault in the passive optical network provided by the embodiment of the application.

The single optical network unit receiving light difference overrun data are aggregated, the passive optical network port jitter overrun duty ratio data (the same number of the jitter overrun optical network units under the passive optical network port/the number of the passive optical network units active in the passive optical network port) can be used for positioning scattered weak light and passive optical network port clustering weak light, and the backbone cause weak light can be positioned by converging the passive optical network ports and clustering weak light.

Optical network unit causes weak light: the optical network unit receives the differential overrun and the passive optical network port shakes the overrun and accounts for < A% (i.e., the third preset value, can be an arbitrary natural number, can be assumed to be 30 here) and the passive optical network port receives the differential overrun and accounts for < B% (i.e., the fourth preset value, can be an arbitrary natural number, can be assumed to be 30 here).

Passive optical network port causes weak light: (1) jitter analysis method: the non-receiving differential overrun of the optical network unit and the jitter overrun of the same passive optical network port are > C% (namely, a fifth preset value, which can be an arbitrary natural number, and can be assumed to be 30 here) and the receiving differential overrun ratio of the passive optical network port is > D% (namely, a sixth preset value, which can be an arbitrary natural number, and can be assumed to be 30 here); (2) clustering method: the weak light duty cycle > E "(i.e., the first preset value, which may be any natural number, here may be assumed to be 20) with the optical network unit under the passive optical network port.

The reason for the optical line terminal is weak light: clustering and separating method: the weak-light passive optical network port under the same-optical line terminal has a duty ratio > F% (i.e., the second preset value may be any natural number, and here may be assumed to be 50).

Aiming at the environment of weak light caused by the optical network unit and weak light caused by the passive optical network port clustering, and weak light caused by the optical line terminal, weak light is remedied.

The proposal constructs a demarcation method and a demarcation device for analyzing weak light and finding out the reason of the weak light in an optical distribution network. Firstly, after the optical network unit received light data is collected for the whole network regularly, the change trend analysis is carried out for the optical network unit data under the passive optical network port, such as the aggregation of single optical network unit received light difference overrun data, the jitter overrun duty ratio data of the passive optical network port (the same number of the jitter overrun optical network units under the passive optical network port/the number of the active optical network units of the passive optical network port), the self received light difference overrun ratio of the passive optical network port (the same number of the self received light difference overrun optical network units under the passive optical network port/the number of the active optical network units of the passive optical network port) can position the weak light of the optical network unit and the weak light of the passive optical network port, and the reason of the optical line terminal can be positioned by converging the weak light through the passive optical network port clustering.

Fig. 7 is a block diagram of a device for locating an optical signal fault in a passive optical network according to an embodiment of the present application, where a device 700 for locating an optical signal fault in a passive optical network according to an embodiment of the present application includes an acquisition module 710 and a determination module 720.

An obtaining module 710, configured to obtain a first target optical network unit in which optical receiving power in the optical distribution network is within a specified optical receiving power range;

a determining module 720, configured to determine a second target optical network unit that meets a specified condition from the first target optical network units; and determining the position of the optical signal fault in the optical wiring network based on the second target optical network unit.

Optionally, in an embodiment of the present application, the first target optical network unit is an optical network unit under the same passive optical network port, and in a process of determining, from the first target optical network unit, a second target optical network unit that meets a specified condition, the determining module 720 is specifically configured to: determining a second target optical network unit with the optical receiving power smaller than a threshold value from the first target optical network units; wherein the threshold value is a value set for a light receiving power that does not reach the standard;

In the process of determining the location of the optical signal fault in the optical fiber network based on the second target optical network unit, the determining module 720 is specifically configured to: determining a ratio of the number of the second target optical network units to the number of the first target optical network units; and if the ratio is larger than a first preset value, determining that the passive optical network port fails.

Optionally, in one embodiment of the present application, the optical distribution network includes a target optical line terminal having a plurality of passive optical network ports, and the determining module 720 is further configured to: determining the ratio of the number of target passive optical network ports in the target optical line terminal to the total number of the passive optical network ports of the target optical line terminal, wherein the target passive optical network ports are the passive optical network ports with faults in a plurality of passive optical network ports of the target optical line terminal; and if the ratio is larger than a second preset value, determining that the target optical line terminal fails.

Optionally, in an embodiment of the present application, the first target optical network unit is an optical network unit under the same passive optical network port, and in a process of determining, from the first target optical network unit, a second target optical network unit that meets a specified condition, the determining module 720 is specifically configured to: and determining a second target optical network unit with abnormal fluctuation of the optical receiving power from the first target optical network unit. Wherein, for any one of the first target optical network units, the abnormal fluctuation of the optical receiving power is determined by at least one of the following modes:

The jitter value of the optical receiving power of the optical network unit in the first time period is larger than a first threshold value;

the difference between the maximum value and the minimum value of the optical receiving power of the optical network unit in the second time period is larger than a second threshold value;

and the difference between the average value of the optical receiving power of the optical network unit in the third time period and the average value of the optical receiving power of all the optical network units in the first target optical network unit in the third time period is smaller than a third threshold value.

Optionally, in one embodiment of the present application, the jitter value of the optical received power of the optical network unit in the first time period is calculated by the following formula:

wherein, the first time period t1=the acquisition times N is the acquisition unit time T;

p is the optical power of each optical network unit in the unit time of collection, and a is the average value of the optical receiving power of a plurality of optical network units in the same unit time of collection under the same passive optical network port.

Optionally, in one embodiment of the present application, in determining a location of an optical signal fault in the optical network based on the second target optical network unit, the determining module 720 is specifically configured to: determining a ratio of the number of the second target optical network units to the number of the first target optical network units; and determining the position of the optical signal fault in the optical wiring network based on the ratio, wherein the position of the optical signal fault is at the second target optical network unit or the passive optical network port.

Optionally, in one embodiment of the present application, the ratio includes a passive optical network port jitter overrun ratio and a passive optical network port self-receiving difference overrun ratio, and the determining module 720 is specifically configured to, in determining a location of an optical signal fault in the optical fiber network based on the ratio: if the jitter overrun duty ratio of the passive optical network port is smaller than a third preset value and the receiving difference overrun duty ratio of the passive optical network port is smaller than a fourth preset value, determining that the position of the optical signal fault in the optical wiring network is in the second target optical network unit.

The jitter overrun duty ratio of the passive optical network port is a ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network is equal to the ratio of the self-receiving difference overrun in the passive optical network port.

Wherein, the jitter overrun means that the jitter value of the optical receiving power in the first time period is larger than a first threshold value; the self-receiving difference overrun means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is larger than the second threshold value.

Optionally, in an embodiment of the present application, the first target optical network unit is an optical network unit under the same passive optical network port, and in a process of determining, from the first target optical network unit, a second target optical network unit that meets a specified condition, the determining module 720 is specifically configured to: and determining a second target optical network unit with the optical receiving power not abnormally fluctuating from the first target optical network unit.

In determining the location of the optical signal fault in the optical fiber network based on the second target optical network unit, the determining module 720 is specifically configured to: under the condition that the optical receiving power of the second target optical network unit does not abnormally fluctuate, obtaining the jitter overrun duty ratio of the passive optical network port and the receiving difference overrun duty ratio of the passive optical network port; if the jitter overrun ratio of the passive optical network port is larger than a fifth preset value and the receiving difference overrun ratio of the passive optical network port is larger than a sixth preset value, determining that the position of the optical signal fault in the optical distribution network is at the passive optical network port;

the jitter overrun duty ratio of the passive optical network port is a ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network is the ratio of the self-receiving difference overrun in the passive optical network port;

Wherein, the jitter overrun means that the jitter value of the optical receiving power in the first time period is larger than a first threshold value; the self-receiving difference overrun means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is larger than the second threshold value.

Fig. 8 is a schematic diagram of an electronic device according to an embodiment of the present application. As shown in fig. 8, an electronic device 800 provided by an embodiment of the application may include a processor 810 and a memory 820. The memory stores a computer program that when executed implements the steps in any of the methods for locating an optical signal fault in a passive optical network provided by the embodiments of the present application (e.g., the method for locating an optical signal fault in a passive optical network shown in any of fig. 1 to 6).

The Memory is used to store programs or data, and may be, but is not limited to, random access Memory (Random Access Memory, RAM), read Only Memory (ROM), programmable Read Only Memory (Programmable Read-Only Memory, PROM), erasable Read Only Memory (Erasable Programmable Read-Only Memory, EPROM), electrically erasable Read Only Memory (Electric Erasable Programmable Read-Only Memory, EEPROM), and the like.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here.

Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running programs or instructions to realize the processes of the embodiment of the method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here.

Embodiments of the present application provide a computer program product stored in a storage medium, where the program product is executed by at least one processor to implement the respective processes of the above method embodiments, and achieve the same technical effects, and for avoiding repetition, a detailed description is omitted herein.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (10)

1. A method for locating an optical signal failure in a passive optical network, comprising:

the method comprises the steps that target equipment obtains a first target optical network unit of which the optical receiving power in an optical wiring network is in a specified optical receiving power range;

the target equipment determines a second target optical network unit of which the optical receiving power meets a specified condition from the first target optical network unit;

the target device determines a location of an optical signal failure in an optical wiring network based on the second target optical network unit.

2. The method of claim 1, wherein the first target optical network unit is an optical network unit under the same passive optical network port; the target device determines a second target optical network unit meeting specified conditions from the first target optical network units, and the second target optical network unit comprises:

The target equipment determines a second target optical network unit with the optical receiving power smaller than a threshold value from the first target optical network unit; wherein the threshold value is a value set for a light receiving power that does not reach the standard;

the target device determines, based on the second target optical network unit, a location of an optical signal failure in an optical wiring network, including:

the target device determines a ratio of the number of the second target optical network units to the number of the first target optical network units;

and if the ratio is larger than a first preset value, the target equipment determines that the passive optical network port fails.

3. The method of claim 2, wherein the optical distribution network comprises a target optical line terminal having a plurality of passive optical network ports, the method further comprising;

the target equipment determines the ratio of the number of target passive optical network ports in the target optical line terminal to the total number of the passive optical network ports of the target optical line terminal, wherein the target passive optical network ports are the passive optical network ports with faults in a plurality of passive optical network ports of the target optical line terminal;

and if the ratio is larger than a second preset value, the target equipment determines that the target optical line terminal fails.

4. The method of claim 1, wherein the first target optical network unit is an optical network unit under the same passive optical network port; the target device determines a second target optical network unit meeting specified conditions from the first target optical network units, and the second target optical network unit comprises:

the target equipment determines a second target optical network unit with abnormal fluctuation of the optical receiving power from the first target optical network unit;

wherein, for any one of the first target optical network units, the abnormal fluctuation of the optical receiving power is determined by at least one of the following modes:

the jitter value of the optical receiving power of the optical network unit in the first time period is larger than a first threshold value;

the difference between the maximum value and the minimum value of the optical receiving power of the optical network unit in the second time period is larger than a second threshold value;

and the difference between the average value of the optical receiving power of the optical network unit in the third time period and the average value of the optical receiving power of all the optical network units in the first target optical network unit in the third time period is smaller than a third threshold value.

5. The method of claim 4, wherein the jitter value of the optical receive power of the optical network unit over the first time period is calculated by the formula:

Wherein, the first time period t1=the acquisition times N is the acquisition unit time T;

p is the optical power of each optical network unit in the unit time of collection, and a is the average value of the optical receiving power of a plurality of optical network units in the same unit time of collection under the same passive optical network port.

6. The method according to claim 4 or 5, wherein the target device determining the location of an optical signal failure in an optical wiring network based on the second target optical network unit comprises:

the target device determines a ratio of the number of the second target optical network units to the number of the first target optical network units;

and the target equipment determines the position of the optical signal fault in the optical wiring network based on the ratio, wherein the position of the optical signal fault is at the second target optical network unit or the passive optical network port.

7. The method of claim 6, wherein the ratio comprises a passive optical network port jitter overrun ratio and a passive optical network port self-received differential overrun ratio; the target device determines a location of an optical signal failure in an optical wiring network based on the ratio, comprising:

if the jitter overrun ratio of the passive optical network port is smaller than a third preset value and the receiving difference overrun ratio of the passive optical network port is smaller than a fourth preset value, the target equipment determines that the position of the optical signal fault in the optical wiring network is in the second target optical network unit;

The jitter overrun duty ratio of the passive optical network port is a ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network is the ratio of the self-receiving difference overrun in the passive optical network port;

wherein, the jitter overrun means that the jitter value of the optical receiving power in the first time period is larger than a first threshold value; the self-receiving difference overrun means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is larger than the second threshold value.

8. The method of claim 1, wherein the first target optical network unit is an optical network unit under the same passive optical network port; the target device determines a second target optical network unit meeting specified conditions from the first target optical network units, and the second target optical network unit comprises:

the target equipment determines a second target optical network unit with the optical receiving power not abnormally fluctuating from the first target optical network unit;

The target device determines, based on the second target optical network unit, a location of an optical signal failure in an optical wiring network, including:

under the condition that the optical receiving power of the second target optical network unit does not abnormally fluctuate, obtaining the jitter overrun duty ratio of the passive optical network port and the receiving difference overrun duty ratio of the passive optical network port;

if the jitter overrun ratio of the passive optical network port is larger than a fifth preset value and the receiving difference overrun ratio of the passive optical network port is larger than a sixth preset value, determining that the position of the optical signal fault in the optical distribution network is at the passive optical network port;

the jitter overrun duty ratio of the passive optical network port is a ratio of the number of optical network units with jitter overrun in the passive optical network port to the number of the first target optical network units in the passive optical network; the ratio of the number of the optical network units with the self-receiving difference overrun in the passive optical network port to the number of the first target optical network units in the passive optical network is the ratio of the self-receiving difference overrun in the passive optical network port;

wherein, the jitter overrun means that the jitter value of the optical receiving power in the first time period is larger than a first threshold value; the self-receiving difference overrun means that the difference between the maximum value and the minimum value of the light receiving power in the second time period is larger than the second threshold value.

9. An apparatus for locating an optical signal failure in a passive optical network, comprising:

the acquisition module is used for acquiring a first target optical network unit of which the optical receiving power is in a specified optical receiving power range in the optical distribution network;

the determining module is used for determining a second target optical network unit with the optical receiving power meeting the specified condition from the first target optical network unit; and determining the position of the optical signal fault in the optical wiring network based on the second target optical network unit.

10. An electronic device comprising a processor and a memory storing a program or instructions that, when executed by the processor, implement the steps of the method of any of claims 1-8.