CN115913359A

CN115913359A - ODN fault positioning method and device

Info

Publication number: CN115913359A
Application number: CN202211586539.0A
Authority: CN
Inventors: 罗倩
Original assignee: Unihub China Information Technology Co Ltd
Current assignee: Unihub China Information Technology Co Ltd
Priority date: 2022-12-09
Filing date: 2022-12-09
Publication date: 2023-04-04

Abstract

The invention discloses an ODN fault positioning method and device, wherein the method comprises the following steps: acquiring information of specified OLT equipment, information of all ODNs and ONU equipment under a PON port, and generating a link relation topological graph; acquiring indexes of appointed OLT equipment and indexes of all ONU equipment under a PON port in real time to test; and according to different test conclusions, carrying out abnormal icon and link color identification on the link relation topological graph. According to the method and the device, the positions of the fault points of the network equipment can be visually presented through the abnormal icons and the link color changes on the link relation topological graph, and maintenance personnel can conveniently and quickly position and solve the problems.

Description

ODN fault positioning method and device

Technical Field

The invention relates to the field of ODN fault location, in particular to an ODN fault location method and device.

Background

An ODN (passive network element) as a passive optical network device of a PON does not contain any electronic device and power supply, and thus it is difficult to perform effective monitoring and fault location on the PON.

At present, in a traditional mode, fault point information is acquired mainly through timing acquisition and is analyzed by maintenance personnel, and then the position of a corresponding fault point is determined, so that the problem that the fault point cannot be found in time and the maintenance period is too long may exist.

Disclosure of Invention

In order to overcome the problems existing in the traditional mode, the invention provides an ODN fault positioning method and device.

In order to achieve the purpose, the invention adopts the following technical scheme:

in an embodiment of the present invention, an ODN fault location method is provided, including:

acquiring the information of specified OLT equipment, all ODNs and ONU equipment under a PON port, and generating a link relation topological graph;

acquiring the indexes of the appointed OLT equipment and all ONU equipment under the PON port in real time to test;

and according to different test conclusions, carrying out abnormal icon and link color identification on the link relation topological graph.

Further, collecting the specified OLT equipment index and all ONU equipment indexes under the PON port in real time for testing, including:

acquiring an index of specified OLT equipment and indexes of all ONU equipment under a PON port in real time;

if the PON board state is not equal to online/inService/normal/enable, the test conclusion is as follows: the PON plate is not online;

if the PON port state is not equal to the up, the test conclusion is as follows: PON port down;

if the single ONU status is not equal to 1 and the off-line reason is dying-gasp/poweroff/dying gasp, then the test concludes: the ONU is powered off;

if the single ONU state is not equal to 1 and the offline reason is to start with los/Loss, then the test concludes: ONU fiber breaking;

if the state of the single ONU is not equal to 1 and the offline reason is other conditions, the test conclusion is as follows: other ONUs;

if all the ONUs under the PON port are broken or other conditions exist, the main optical fiber is broken according to a test conclusion;

if the ONU at the lower part of the PON port is broken, the test conclusion is that the branch optical fiber is broken;

if the single ONU state is equal to 1 and the ONU received optical power is not between-7 to-27 dBm, the test concludes: the ONU optical power is abnormal.

Further, according to different test conclusions, abnormal icons and link color identification are carried out on the link relation topological graph, and the method comprises the following steps:

if the test conclusion is that the PON plate is not on line or is down at the PON port, an equipment abnormal icon is placed on the OLT equipment, and the color of all links is changed into grey;

if the test conclusion is that the ONU is powered off, placing a power-off icon on the corresponding ONU equipment;

if the test conclusion is that the optical power of the ONU is abnormal, changing the colors of all uplink links of the corresponding ONU equipment into yellow;

if the test conclusion is that the trunk optical fiber is broken, when only one secondary optical splitter exists, the color of all uplink links of the secondary optical splitter is changed into red; when a plurality of secondary optical splitters exist and all ONUs under one secondary optical splitter are broken, the colors of all uplink links of the secondary optical splitters are changed into red;

and if the test conclusion is that the branch optical fiber is broken, changing the color of the uplink single link of the corresponding ONU equipment into red.

In an embodiment of the present invention, an ODN fault locating apparatus is further provided, including:

the topological graph generating module is used for acquiring information of specified OLT equipment, information of all ODNs and ONU equipment under a PON port and generating a link relation topological graph;

the index acquisition and analysis module is used for acquiring the indexes of the specified OLT equipment and the indexes of all ONU equipment under the PON port in real time to test;

and the test result presentation module is used for carrying out abnormal icon and link color identification on the link relation topological graph according to different test conclusions.

Further, the index collection and analysis module is specifically configured to:

acquiring an index of appointed OLT equipment and indexes of all ONU equipment under a PON port in real time;

if the PON plate state is not equal to online/inService/normal/enable, the test conclusion is as follows: the PON plate is not online;

if the PON port state is not equal to up, the test conclusion is as follows: a PON port down;

if the single ONU state is not equal to 1 and the off-line reason is dying-gasp/poweroff/dying gasp, then the test concludes: the ONU is powered off;

if the single ONU state is not equal to 1 and the offline reason is other conditions, the test conclusion is that: other ONU;

if all the ONUs below the PON port are broken or other times are carried out, the test conclusion is that the main optical fiber is broken;

Further, the test result presenting module is specifically configured to:

In an embodiment of the present invention, a computer device is further provided, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and when the processor executes the computer program, the ODN fault location is implemented.

In an embodiment of the present invention, a computer-readable storage medium is further proposed, in which a computer program for performing ODN fault location is stored.

Has the beneficial effects that:

according to the invention, through the abnormal icon on the link relation topological graph and the link color change, the position of the fault point of the network equipment can be visually presented, and maintenance personnel can conveniently and rapidly position and solve the problem.

Drawings

FIG. 1 is a flow chart of an ODN fault location method according to the present invention;

FIG. 2 is a link relationship topology graph generated by the present invention;

FIG. 3 is a link relationship topology diagram of one embodiment of the present invention;

fig. 4 is a schematic diagram illustrating a change of an identifier on a link relationship topology diagram when a PON board is not on-line or is down at a PON port according to a test result of an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a change of an identifier on a link relationship topology diagram when an ONU is powered off in a test result according to an embodiment of the present invention;

fig. 6 is a schematic diagram illustrating a change of an identifier on a link relationship topology diagram when an optical power of an ONU is abnormal according to a test result of an embodiment of the present invention;

FIG. 7 is a schematic diagram illustrating the change of the identifier on the link relationship topology when only one secondary splitter exists after the trunk fiber is broken according to the test result of the embodiment of the present invention;

fig. 8 is a schematic diagram illustrating a change in the identifier on the link relationship topology diagram when the test result indicates that the trunk optical fiber is broken and when there are multiple secondary optical splitters and all ONUs under a certain secondary optical splitter are broken;

FIG. 9 is a schematic diagram illustrating the change of the identifier on the link relationship topology diagram when the test result is a broken branch optical fiber according to an embodiment of the present invention;

fig. 10 is a schematic diagram illustrating a change in the identifier on the link relationship topology diagram when the test result is that the optical fiber branch is broken and there is an ONU power failure according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of an ODN fault locating device according to the present invention;

FIG. 12 is a schematic diagram of the computer device structure of the present invention.

Detailed Description

The principles and spirit of the present invention will be described below with reference to several exemplary embodiments, which should be understood to be presented only to enable those skilled in the art to better understand and implement the present invention, and not to limit the scope of the present invention in any way. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As will be appreciated by one of skill in the art, embodiments of the present invention may be embodied as an apparatus, device, node, method, or computer program product. Accordingly, the present disclosure may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.

The embodiment of the invention provides an ODN fault positioning method, which comprises the steps of obtaining information of specified OLT equipment, information of all ODNs and ONU equipment under a PON port and generating a link relation topological graph (shown from left to right in a tree form); acquiring indexes of appointed OLT equipment and indexes of all ONU equipment under a PON port in real time to test; and according to different test conclusions, carrying out abnormal icon and link color identification on the link relation topological graph.

The principles and spirit of the present invention are explained in detail below with reference to several representative embodiments of the invention.

Fig. 1 is a flow chart of the ODN fault location method according to the present invention. As shown in fig. 1, the method includes:

1. acquiring information of specified OLT equipment, information of all ODNs and ONU equipment under a PON port from a database, and generating a link relation topological graph;

the OLT apparatus information includes: OLT equipment IP, equipment name, PON port of OLT equipment and the like;

the ODN device information includes: first-level optical splitter (OBD) and second-level optical splitter (OBD) information, etc.;

the ONU device information includes: ONU device name and oneuid, etc.

As shown in fig. 2, shown from left to right in a tree-like fashion: OLT- - > one-level OBD- - > two-level OBD- - > ONU. The connection lines between all the devices are green by default, which indicates normal.

2. The real-time login equipment acquires an index of appointed OLT equipment and indexes of all ONU equipment under a PON port for testing;

the OLT equipment indexes comprise: oltton board status and oltton port status, etc.

All ONU equipment indexes under the PON port comprise: the operation state, the reason of last drop, the OLT side receiving optical power, the ONU transmitting optical power, the ONU receiving optical power and the like.

The specific tests are as follows:

if the PON board status cardstatus is not equal to online/inService/normal/enable, then the test conclusion is: the PON plate is not online;

if the single ONU state, onstatus, is not equal to 1 and the off-line reason is offgoing-gasp (power down alarm)/poweroff/dinggasp (power down alarm), then the test conclusion is: the ONU is powered off;

if the single ONU state, noustutus, is not equal to 1 and the off-line reason offlineson = starts with los/Loss (representing fiber cable broken or optical path Loss), then the test concludes: ONU fiber breaking;

if the single ONU status, noustutus, is not equal to 1 and the offline reason offlineson = other cases, then the test conclusion is: other ONU;

if the single ONU state, once, is equal to 1 and the ONU received optical power, onurcvpptower, is not in the normal range, i.e., -7 to-27 dBm, then the test concludes: the ONU optical power is abnormal.

3. According to different test conclusions, carrying out abnormal icon and link color identification on the link relation topological graph; the method comprises the following specific steps:

It should be noted that although the operations of the method of the present invention have been described in the above embodiments and the accompanying drawings in a particular order, this does not require or imply that these operations must be performed in this particular order or that all of the illustrated operations must be performed to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps combined into one step execution, and/or one step broken down into multiple step executions.

For a clearer explanation of the above ODN fault location method, a specific embodiment is described below, however, it should be noted that the embodiment is only for better explaining the present invention and is not to be construed as an undue limitation to the present invention.

Example (b):

1. and (3) designating an OLT device + OLTPON port as a parameter to test (a test button is provided on an interface, and real-time test can be carried out after clicking).

2. And acquiring the IP address and the equipment name of the OLT equipment from the database table according to the equipment identifier of the specified OLT.

3. And acquiring the first-level splitter information, the second-level splitter information and the ONUID from the database table according to the equipment identifier + OLTPON port of the specified OLT.

4. Generating a link relation topological graph, and displaying the topological graph in a tree form from left to right: OLT- - > one-level OBD- - > two-level OBD- - > ONU. As shown in fig. 3, when the link relationship topology is displayed, the device name (IP address) is displayed below the device icon, and the device name is displayed below each ONU device icon.

5. And carrying out real-time index acquisition on the specified OLT equipment and the OLTPON port, and analyzing the acquired indexes. And identifying in the link relation topological graph according to different test conclusions, and providing possible fault reasons and a suggested processing mode. The method comprises the following specific steps:

(1) When the test result is that the PON board is not on-line or the PON port is down, the OLT apparatus places an apparatus exception icon, and all the links change to gray in color, as shown in fig. 4.

(2) And when the test conclusion is that the ONU is powered down, placing a power down icon on the corresponding ONU equipment, as shown in FIG. 5.

Possible causes of failure: the ONU is powered down.

And (4) suggesting a treatment mode: and restarting the ONU equipment.

(3) If the test conclusion is that the optical power of the ONU is abnormal, all uplink colors of the corresponding ONU device are changed into yellow, as shown in fig. 6.

(4) When the test conclusion is that the main optical fiber is broken:

(a) When there is only one secondary splitter, then the secondary splitter goes all-link colors red, as shown in fig. 7.

(b) When there are multiple secondary splitters and all ONUs under a certain secondary splitter are broken, the color of all uplink of the secondary splitter changes to red, as shown in fig. 8.

Possible causes of failure: 1. and 2, breaking the optical fiber, wherein 2, the tail drill rod of the lower connection port of the optical splitter is loosened, and 3, the tail drill rod of the OLTPON port is loosened.

And (4) suggesting a treatment mode: 1. testing optical fibers, 2, checking a lower connection tail drill rod of the optical splitter, 3, checking an OLTPON opening tail drill rod, and 4, replacing the optical splitter.

(5) When the test conclusion is that the branch optical fiber is broken, the color of the uplink single link of the corresponding ONU equipment is changed into red, as shown in FIG. 9.

Possible causes of failure: 1. and 2, interrupting the optical fiber, wherein 2, the tail drill rod of the lower connection port of the optical splitter is loosened, and 3.ONUPON port tail drill rod is loosened.

And (4) suggesting a treatment mode: 1. testing optical fibers, 2, checking a tail drill rod of a lower connection port of the optical splitter, 3, checking a tail drill rod of an ONUPON port, and 4, replacing the optical splitter.

(6) When the test conclusion is that the branch optical fiber is broken and the ONU has power failure, the color of the uplink single link of the corresponding ONU device is changed to red, and a power failure icon is placed on the corresponding ONU device, as shown in fig. 10.

Possible causes of failure: 1. and 2, interrupting the optical fiber, wherein 2, the tail drill rod of the lower connection interface of the optical splitter is loosened, 3.ONUPON interface tail drill rod is loosened, and 4.ONU is powered off.

And (4) suggesting a treatment mode: 1. testing an optical fiber, 2, checking a tail drill rod of a lower connection port of the optical splitter, 3, checking a tail drill rod of an ONUPON port, 4, replacing the optical splitter, and 5, restarting ONU equipment.

Based on the same invention concept, the invention also provides an ODN fault positioning device. The implementation of the device can be referred to the implementation of the method, and repeated details are not repeated. The term "module," as used below, may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.

Fig. 11 is a schematic structural diagram of the ODN fault locating device according to the present invention. As shown in fig. 11, the apparatus includes:

the topology map generating module 101 is configured to obtain information of a specified OLT device, information of all ODNs and ONU devices under the PON port, and generate a link relationship topology map.

The index acquisition and analysis module 102 is used for acquiring indexes of the specified OLT equipment and indexes of all ONU equipment under the PON port in real time to test; the method comprises the following specific steps:

The test result presentation module 103 is used for performing abnormal icon and link color identification on the link relation topological graph according to different test conclusions; the method comprises the following specific steps:

It should be noted that although several modules of the ODN fault locating device are mentioned in the above detailed description, such division is merely exemplary and not mandatory. Indeed, the features and functions of two or more of the modules described above may be embodied in one module according to embodiments of the invention. Conversely, the features and functions of one module described above may be further divided into embodiments by a plurality of modules.

Based on the aforementioned inventive concept, as shown in fig. 12, the present invention further provides a computer apparatus 200, which includes a memory 210, a processor 220 and a computer program 230 stored on the memory 210 and capable of running on the processor 220, wherein the processor 220 implements the aforementioned ODN fault location method when executing the computer program 230.

Based on the foregoing inventive concept, the present invention further provides a computer readable storage medium storing a computer program for performing the foregoing ODN fault location.

According to the ODN fault positioning method and device provided by the invention, the position of the fault point of the network equipment can be visually presented through the abnormal icon and the link color change on the link relation topological graph, so that maintenance personnel can conveniently and quickly position and solve the problem.

The above mentioned terms are described as follows:

PON: the ODN is a typical passive optical network, which means that the optical distribution network does not contain any electronic device and electronic power supply, and the ODN is composed of passive devices such as an optical Splitter (Splitter) and does not need expensive active electronic equipment. A passive optical network includes an Optical Line Terminal (OLT) mounted at a central control station and a plurality of associated Optical Network Units (ONUs) mounted at customer sites.

OLT: the optical access network is a core component of the optical access network, is equivalent to a switch or a router in a traditional communication network, and is also a multi-service providing platform. Typically located at the office end, provides a fiber interface to the subscriber-oriented passive fiber optic network. The main functions realized by the method are as follows:

(1) And the upper network is connected to finish the uplink access of a PON (passive optical network).

(2) And (3) connecting the user end equipment ONU through an ODN network (consisting of an optical fiber and a passive optical splitter). The functions of controlling, managing, ranging and the like of the user side equipment ONU are realized.

And ONU: the Ethernet is a user side device in an optical network, is placed at a user side and is matched with the OLT for use, thereby realizing the functions of two layers and three layers of the Ethernet and providing voice, data and multimedia services for the user. The main functions realized by the method are as follows:

(1) And selecting to receive the data sent by the OLT.

(2) Responding to the management command sent by the OLT and making corresponding adjustment.

(3) And buffering the Ethernet data of the user and transmitting the Ethernet data in an uplink direction in a transmission window allocated by the OLT.

(4) Other user management functions.

An ODN (optical distribution network) optical distribution network is an FTTH optical cable network based on PON devices. Its function is to provide an optical transmission channel between the OLT and the ONU. From the function, the ODN can be divided into four parts, i.e., a feeder cable subsystem, a distribution cable subsystem, a service cable subsystem, and an optical fiber termination subsystem, from the local side to the subscriber side. Briefly, the ODN is a network formed by all passive optical fibers and passive devices (optical splitters) between two active devices (OLT device and ONU device).

While the spirit and principles of the invention have been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, nor is the division of aspects, which is for convenience only as the features in such aspects cannot be combined to advantage. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

The limitation of the protection scope of the present invention is understood by those skilled in the art, and various modifications or changes which can be made by those skilled in the art without inventive efforts based on the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. An ODN fault locating method is characterized by comprising the following steps:

acquiring indexes of appointed OLT equipment and indexes of all ONU equipment under a PON port in real time to test;

2. The ODN fault location method according to claim 1, wherein collecting the specified OLT equipment index and all ONU equipment indexes under the PON port in real time for testing comprises:

if the PON port state is not equal to up, the test conclusion is as follows: PON port down;

3. The ODN fault location method according to claim 1, wherein the performing of the abnormal icon and the link color identification on the link relation topology map according to different test conclusions comprises:

if the test conclusion is that the PON plate is not on line or is down at the PON port, the OLT equipment is provided with an equipment abnormal icon, and the color of all links is changed into grey;

4. An ODN fault location device, comprising:

5. The ODN fault location device of claim 4, wherein the index collection and analysis module is specifically configured to:

6. The ODN fault location device of claim 4, wherein the test result presentation module is specifically configured to:

7. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor implements the method of any of claims 1-3 when executing the computer program.

8. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1-3.