CN113965834A - Problem detection method and device for optical distribution network - Google Patents
Problem detection method and device for optical distribution network Download PDFInfo
- Publication number
- CN113965834A CN113965834A CN202010698936.1A CN202010698936A CN113965834A CN 113965834 A CN113965834 A CN 113965834A CN 202010698936 A CN202010698936 A CN 202010698936A CN 113965834 A CN113965834 A CN 113965834A
- Authority
- CN
- China
- Prior art keywords
- access
- optical network
- distance
- network unit
- optical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q11/00—Selecting arrangements for multiplex systems
- H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
- H04Q11/0062—Network aspects
- H04Q2011/0079—Operation or maintenance aspects
- H04Q2011/0083—Testing; Monitoring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a problem detection method and device for an optical distribution network. The method comprises the following steps: acquiring the access distance between an optical network unit and an optical line terminal in the same cell; sequencing the access distances according to the sequence of the access distances between each optical network unit and the optical line terminal to generate an access distance sequence; and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance. According to the scheme, the optical network unit with the cross-region long-distance access problem can be automatically identified before the user feeds back the problem, so that the problem can be timely processed; the optical network unit with the cross-region long-distance access problem can be determined from multiple dimensions, and the detection precision is high; moreover, the implementation process of the scheme is simple and easy, the calculated amount is small, and the detection efficiency is high.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a problem detection method and device for an optical distribution network.
Background
An Optical Distribution Network (ODN) is an FTTH Optical cable Network based on PON devices, which is one of important links in broadband service access. The performance of the optical distribution network will directly affect the performance of the whole broadband service, and then the user experience is affected. At present, the problem of the optical distribution network is usually determined by a manual troubleshooting mode after fault feedback (such as slow network speed, time delay and the like) of a user is received.
However, the inventor finds that the following defects exist in the prior art in the implementation process: the implementation mode in the prior art has hysteresis, and can not detect the problem existing in the optical distribution network in advance before the user service fails; and has the disadvantages of low detection efficiency and poor detection precision.
Disclosure of Invention
In view of the above, the present invention is proposed to provide a problem detection method and apparatus for an optical distribution network that overcomes or at least partially solves the above problems.
According to an aspect of the present invention, there is provided a problem detection method for an optical distribution network, including:
acquiring the access distance between an optical network unit and an optical line terminal in the same cell;
sequencing the access distances according to the sequence of the access distances between each optical network unit and the optical line terminal to generate an access distance sequence;
and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
Optionally, the identifying, according to the minimum access distance value in the access distance sequence, the difference between adjacent access distances, and/or the service path information to which the optical network unit corresponding to the access distance belongs, the optical network unit having the cross-region long-distance access problem further includes:
judging whether the minimum value of the access distance is greater than a first preset distance or not;
if yes, determining that each optical network unit has a cross-region long-distance access problem;
and if not, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
Optionally, the identifying, according to the difference between the adjacent access distances and the service path information to which the optical network unit corresponding to the access distance belongs, the optical network unit that has the cross-region long-distance access problem in the optical distribution network further includes:
judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence or not;
if so, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the service path information of the optical network unit corresponding to the access distance;
if not, determining that the optical network units do not have the cross-region long-distance access problem.
Optionally, the service path information to which the optical network unit belongs is specifically a first-stage optical splitter number associated with the optical network unit;
the identifying, according to the service path information to which the optical network unit corresponding to the access distance belongs, that the optical network unit having the cross-region long-distance access problem in the optical distribution network further includes:
respectively acquiring first-level optical splitter numbers associated with two optical network units with adjacent access distances of which the difference value is greater than a second preset distance;
judging whether the serial numbers of the first-level optical splitters associated with the two optical network units are the same;
if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
Optionally, the method further includes:
aiming at any optical network unit without the cross-region long-distance access problem, calculating the corresponding nominal access loss and the actual access loss of the optical network unit;
and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
Optionally, the calculating the nominal access loss corresponding to the onu further includes: and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs.
Optionally, after the determining whether the optical network unit has the received signal quality problem, the method further includes:
generating a first set and a second set according to the judgment result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units without receiving signal quality problem;
respectively acquiring comparison information of each optical network unit contained in the first set and the second set; wherein the comparison information comprises routing information and physical resource information;
matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set;
and determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result.
According to another aspect of the present invention, there is provided an apparatus for detecting a problem in an optical distribution network, including:
the acquisition module is suitable for acquiring the access distance between the optical network unit and the optical line terminal in the same cell;
the sequence generation module is suitable for sequencing the access distances according to the sequence of the access distances between the optical network units and the optical line terminal so as to generate an access distance sequence;
and the identification module is suitable for identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
Optionally, the identification module is further adapted to:
judging whether the minimum value of the access distance is greater than a first preset distance or not;
if yes, determining that each optical network unit has a cross-region long-distance access problem;
and if not, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
Optionally, the identification module is further adapted to:
judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence or not;
if so, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the service path information of the optical network unit corresponding to the access distance;
if not, determining that the optical network units do not have the cross-region long-distance access problem.
Optionally, the service path information to which the optical network unit belongs is specifically a first-stage optical splitter number associated with the optical network unit;
the identification module is further adapted to:
respectively acquiring first-level optical splitter numbers associated with two optical network units with adjacent access distances of which the difference value is greater than a second preset distance;
judging whether the serial numbers of the first-level optical splitters associated with the two optical network units are the same;
if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
Optionally, the apparatus further comprises: the receiving signal quality problem determining module is suitable for calculating the nominal access loss and the actual access loss corresponding to any optical network unit without the cross-region long-distance access problem;
and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
Optionally, the received signal quality problem determination module is further adapted to: and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs.
Optionally, after the determining whether the optical network unit has the received signal quality problem, the apparatus further includes: the fault point determining module is suitable for generating a first set and a second set according to the judgment result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units without receiving signal quality problem;
respectively acquiring comparison information of each optical network unit contained in the first set and the second set; wherein the comparison information comprises routing information and physical resource information;
matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set;
and determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result.
According to yet another aspect of the present invention, there is provided a computing device comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction enables the processor to execute the operation corresponding to the problem detection method of the optical distribution network.
According to still another aspect of the present invention, a computer storage medium is provided, where at least one executable instruction is stored in the storage medium, and the executable instruction causes a processor to perform an operation corresponding to the problem detection method of the optical distribution network.
According to the problem detection method and device of the optical distribution network, the access distance between the optical network unit and the optical line terminal in the same cell is obtained; sequencing the access distances according to the sequence of the access distances between each optical network unit and the optical line terminal to generate an access distance sequence; and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance. According to the scheme, the optical network unit with the cross-region long-distance access problem can be automatically identified before the user feeds back the problem, so that the problem can be timely processed; the optical network unit with the cross-region long-distance access problem can be determined from multiple dimensions, and the detection precision is high; moreover, the implementation process of the scheme is simple and easy, the calculated amount is small, and the detection efficiency is high.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic flowchart illustrating a problem detection method for an optical distribution network according to an embodiment of the present invention;
fig. 2 is a schematic flowchart illustrating an optical network unit identifying the existence of a cross-region long-distance access problem based on three dimensions according to an embodiment of the present invention;
fig. 3 is a schematic flowchart illustrating a problem detection method for an optical distribution network according to a second embodiment of the present invention;
fig. 4 is a functional structure diagram of a problem detection apparatus of an optical distribution network according to a third embodiment of the present invention;
fig. 5 shows a schematic structural diagram of a computing device according to a fifth embodiment of the present invention.
Detailed Description
Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
To facilitate a better understanding of the invention, the relevant technical terms to which the invention relates are first clarified:
an Optical Line Terminal (OLT) is a Terminal device used for connecting an Optical fiber trunk.
An Optical Network Unit (ONU). In general, an ONU may be equivalent to an ONT (Optical network terminal), which is an Optical network terminal for a user end; the service signal reaches the OLT through the ONU via a user layer rubber-insulated-wire cable, a secondary optical cross, a branch optical fiber, a cell trunk optical cross, a wiring layer cell trunk optical cable, an optical cable network optical cross and a trunk access layer user optical cable network.
A Passive Optical Network (PON) refers to an Optical distribution Network that does not contain any electronic devices and electronic power supplies.
Example one
Fig. 1 is a flowchart illustrating a problem detection method for an optical distribution network according to an embodiment of the present invention. The method is applied to a broadband service scene. The embodiment does not limit the specific implementation device of the method.
In an optical distribution network, if a user with cross-regional access or long-distance access exists, the OLT often cannot realize the delay balance of the ONU, thereby affecting the broadband internet service quality; in addition, a large amount of physical resources such as pipeline and optical cable resources are wasted.
By implementing the embodiment, the cross-region and long-distance access problem existing in the optical distribution network can be detected in advance before the user feedback problem, so that the problem can be processed in time.
As shown in fig. 1, the method includes:
step S110: and acquiring the access distance between the optical network unit and the optical line terminal in the same cell.
In an actual implementation process, account opening information related to user account opening and related traffic path information are typically stored in a preset database in an associated manner (e.g., may be stored in a resource management system of the pipeline and the access network). Wherein, the account opening information specifically includes a cell corresponding to the user, and the service path information includes: the number of the optical network unit, the number of the optical splitter, and/or the port number of the lower-link PON port of the associated optical line terminal. The embodiment may obtain the account opening information and the associated service path information from the preset database, so as to extract the optical line terminal and the optical network unit associated with the same cell from the obtained information, and obtain the service path information to which each optical network unit belongs.
Further, the access distance between the optical line terminal and the optical network unit in the same cell is obtained. Optionally, the access distance may be obtained in advance through a corresponding ranging method (such as an optical network ranging method, etc.), and the access distance and the OLID number of the optical network unit are stored in association, so that the corresponding access distance can be quickly found based on the OLID number of the optical network unit.
Step S120: and sequencing the access distances according to the size sequence of the access distances between the optical network units and the optical line terminal to generate an access distance sequence.
According to the access distances between the optical line terminals obtained in the step S110, the access distances are further sorted in the order from the large access distance to the small access distance or from the small access distance to the large access distance, and an access distance sequence is generated according to the sorting result.
Step S130: and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
The minimum value of the access distance can reflect the whole access distance of each optical line terminal in the cell, the difference value of the adjacent access distances can reflect the loose degree of the access distance of the optical line terminal in the cell, and the service path information of the optical network unit can reflect the shared information of the path equipment of each optical line terminal in the cell. Therefore, in this embodiment, the optical line terminal having the cross-region long-distance access problem is determined from at least one of three pieces of dimensional information, that is, the minimum access distance, the difference between adjacent access distances, and the service path information to which the optical network unit corresponding to the access distance belongs.
Optionally, after the optical network unit with the cross-region-long-distance access problem is identified, a cross-region-long-distance access problem identifier may be further allocated to the optical network unit, so as to conveniently perform centralized management on each optical network unit with the cross-region-long-distance access problem, and conveniently and accurately adjust each optical network unit with the cross-region-long-distance access problem in time.
In a specific implementation process, the optical line terminal with the cross-region long-distance access problem can be comprehensively determined according to the minimum access distance, the difference between adjacent access distances, and the three-dimensional information of the service path information of the optical network unit corresponding to the access distance, as shown in fig. 2, so that the identification accuracy of the cross-region long-distance access problem is further improved.
As shown in fig. 2, this method includes the following steps:
s131, judging whether the minimum value of the access distance is greater than a first preset distance; if yes, determining that each optical network unit has a cross-region long-distance access problem; if not, go to step S132.
When the minimum access distance is determined to be greater than a first preset distance (for example, the first preset distance may be 5km), it indicates that each optical network unit in the cell has a cross-region long-distance access problem; and when the minimum value of the access distance is determined to be smaller than or equal to the first preset distance, the optical network unit with the cross-region long-distance access problem in the optical distribution network can be identified through the subsequent steps according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
S132, judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence; if not, determining that each optical network unit has no cross-region long-distance access problem; if yes, go to step S133.
Wherein the second preset distance is smaller than the first preset distance. Specifically, when the minimum value of the access distance is less than or equal to a first preset threshold value and the difference value of adjacent access distances is not greater than a second preset distance in the access distance sequence, determining that no cross-region-long-distance access problem exists in each optical network unit; however, when the minimum value of the access distance is less than or equal to the first preset threshold value and the difference value of adjacent access distances is greater than the second preset distance in the access distance sequence, the optical network unit having the cross-region long-distance access problem in the optical distribution network is further identified according to the service path information to which the optical network unit corresponding to the access distance belongs. The service path information to which the optical network unit belongs specifically includes a first-level optical splitter number associated with the optical network unit.
S133, respectively acquiring the numbers of the first-level optical splitters associated with two optical network units with the difference value of the adjacent access distances larger than a second preset distance, and judging whether the numbers of the first-level optical splitters associated with the two optical network units are the same; if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
In a specific implementation process, when only the difference value of one adjacent access distance in the access distance sequence is greater than a second preset distance, if the first-level optical splitters associated with the optical network units corresponding to the adjacent access distances are the same in number, it is indicated that each optical network unit in the cell does not have the cross-cell long-distance access problem; otherwise, the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence is identified as having the cross-region long-distance access problem. For example, the access distance sequence is {1.5, 2, 5, 6}, wherein a difference value between the second access distance of the bit sequence and the third access distance of the bit sequence is greater than a second preset distance 1, and when the numbers of the first-level optical splitters associated with the optical network units corresponding to the second access distance of the bit sequence and the third access distance of the bit sequence are the same, no cross-cell-long-distance access problem exists in any 4 optical network units in the cell; when the number of the first-level optical splitter associated with the optical network unit corresponding to the second access distance of the bit array is different from the number of the first-level optical splitter associated with the optical network unit corresponding to the third access distance of the bit array, all the optical network units corresponding to the access distances greater than or equal to 5 (the larger access distance of the two optical network units) in the sequence have the problem of cross-region-long-distance access.
When the difference value of a plurality of adjacent access distances in the access distance sequence is larger than a second preset distance, aiming at the plurality of conditions, selecting a condition with the minimum current total access distance, aiming at the condition, and identifying the optical network unit corresponding to the access distance larger than or equal to the larger value of the access distance in the access distance sequence as having a cross-region-long distance access problem if the first-stage optical splitters associated with the two optical network units of the condition are different in number; if the numbers of the first-level optical splitters associated with the two optical network units in the situation are the same, acquiring one situation with the minimum current total access distance from the rest situations, judging whether the numbers of the optical splitters corresponding to the situation are the same, if not, identifying the optical network unit corresponding to the access distance which is larger than or equal to the larger value of the access distance in the access distance sequence as having the cross-region long-distance access problem, if so, acquiring one situation with the minimum current total access distance from the rest situations again, and so on until all the situations are analyzed and identified.
Therefore, in the embodiment, before the user feeds back the problem, the optical network unit with the cross-region long-distance access problem can be automatically identified according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information to which the optical network unit corresponding to the access distance belongs, so that the problem can be timely processed; in addition, the embodiment can determine the optical network unit with the cross-region and long-distance access problem from multiple dimensions, thereby being beneficial to the improvement of detection precision; in addition, the implementation process of the scheme is simple and easy, the calculated amount is small, and the detection efficiency is high; moreover, this embodiment need not artifical the participation, further reduces the cost of labor, promotes detection efficiency.
Example two
Fig. 3 is a flowchart illustrating a problem detection method for an optical distribution network according to a third embodiment of the present invention. The method is directed to further optimization of the problem detection method of the optical distribution network in the first embodiment. More specifically, the present embodiment is directed to detecting a path loss problem of an optical network unit in which the cross-zone long-distance access problem does not exist in the first embodiment.
As shown in fig. 3, the method includes:
step S310: and calculating the corresponding nominal access loss and the actual access loss of any optical network unit without the cross-region and long-distance access problem.
Based on the implementation result of the first embodiment, at least one optical network unit without the cross-region long-distance access problem is obtained, and the nominal access loss corresponding to the optical network unit and the actual access loss corresponding to the optical network unit are calculated for any optical network unit.
Specifically, the nominal access loss corresponding to the onu can be obtained as follows: and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs (wherein the service path information specifically comprises the splitting ratio of the optical splitters and the number of the optical splitters involved in the path). Specifically, the nominal access loss may be obtained by the following formula:
wherein, I is a nominal access loss of the onu, D is an access distance between the onu and the olt, OS is an intrinsic loss calculated according to a splitting ratio of each splitter (wherein, the splitting ratios are 1: 2, 1: 4, 1: 8, 1: 16, and 1: 32, respectively, the intrinsic losses calculated by the splitters are 4dB, 7dB, 10dB, 13dB, and 16dB), and n is the number of the splitters included in a service path of the onu.
The actual access loss corresponding to the onu can be obtained according to the difference between the light-emitting power of the olt and the light-receiving power of the onu.
Step S320: and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
Specifically, when the difference between the actual access loss and the nominal access loss is greater than the preset loss (for example, the preset loss may be 3dB), it is determined that the optical network unit has a problem of the received signal quality; otherwise, determining that the optical network unit has no received signal quality problem.
Step S330: and further determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the judgment result.
By implementing step S310 and step S320, the optical network unit having the problem of the received signal quality and the optical network unit having no problem of the received signal quality in the optical distribution network can be accurately determined. So that a first set and a second set can be generated according to the judgment result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units that do not have received signal quality problems.
Further, the comparison information of each optical network unit contained in the first set and the second set is respectively obtained; the comparison information includes routing information and physical resource information. Such as a service name corresponding to the optical network unit, an LOID of the optical network unit, a cell name, a covered optical cable, a secondary optical cross, a branch optical cable, a primary optical cross, a trunk optical cable, and/or downlink port information of the OLT device.
And further, matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set, and finally determining the fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result. In order to improve the positioning accuracy of the fault node, the fault node may be positioned in a step-by-step matching manner in this embodiment. Specifically, step-by-step matching is performed according to the sequence of "service name → LOID of ONU → cell name → rubber-covered optical cable → secondary optical cross → branch optical cable → primary optical cross → trunk optical cable → downlink port of OLT device" (wherein the secondary optical cross is the next stage of the rubber-covered optical cable), that is, a current node (for example, a rubber-covered optical cable) associated with a service corresponding to the optical network unit in the first set is obtained, and a full-volume service corresponding to the current node is obtained, and then whether an optical network unit associated with the full-volume service exists is inquired in the second set, if so, a faulty node of the optical network unit in the first set is determined as a previous-stage node of the current node; if not, further acquiring a next-level node corresponding to the optical network unit in the first set, then inquiring whether an optical network unit associated with the full service corresponding to the next-level node exists in the second set, and so on until a fault point is determined.
The specific determination method is as follows:
acquiring a rubber-insulated-wire cable associated with a service corresponding to an optical network unit in a first set, acquiring a full service corresponding to the rubber-insulated-wire cable, and then inquiring whether an optical network unit associated with the full service exists in a second set;
if yes, determining the fault node of the optical network unit in the first set as an ONU terminal side problem (namely, a previous-stage node of the covered wire optical cable node); if not, further acquiring a secondary optical cross (namely a next-level node of the rubber-insulated-wire cable node) corresponding to the optical network unit in the first set, and then inquiring whether an optical network unit associated with the full service corresponding to the secondary optical cross exists in the second set;
if so, determining the fault node of the optical network unit in the first set as the quality problem of the rubber-insulated-wire optical cable; if not, further acquiring a branch optical cable corresponding to the optical network unit in the first set (namely, a next-level node of the secondary optical cross node), and then querying whether an optical network unit associated with the full service corresponding to the branch optical cable exists in the second set;
if yes, determining the fault node of the optical network unit in the first set as a secondary optical cross quality problem; if not, further acquiring a first-level optical cross (namely a next-level node of the branch optical cable node) corresponding to the optical network unit in the first set, and then inquiring whether an optical network unit associated with the full service corresponding to the first-level optical cross exists in the second set;
if yes, determining the fault node of the optical network unit in the first set as the branch optical cable quality problem; if not, further acquiring a trunk optical cable corresponding to the optical network unit in the first set (namely, a next-level node of the first-level optical cross node), and then querying whether an optical network unit associated with the full service corresponding to the trunk optical cable exists in the second set;
if yes, determining the fault node of the optical network unit in the first set as a primary optical cross quality problem; if not, further acquiring an OLT equipment downlink port (namely a next-stage node of the trunk optical cable node) corresponding to the optical network unit in the first set, and then inquiring whether an optical network unit associated with the full service corresponding to the OLT equipment downlink port exists in the second set;
if yes, determining the fault node of the optical network unit in the first set as the quality problem of the main optical cable; and if not, determining the fault node of the optical network unit in the first set as the quality problem of the downlink port of the OLT equipment.
Therefore, in this embodiment, on the basis of the first embodiment, the path loss problem is further detected for the optical network unit without the cross-region long-distance access problem, and the problem existing in the optical distribution network can be detected in an all-around manner; in addition, the embodiment can also accurately locate the fault node corresponding to the optical network unit with the problem of the quality of the received signal. In addition, the implementation of the embodiment does not need manual repeated measurement, so that the labor cost is reduced, and the detection efficiency is improved; in addition, the detection mode of the embodiment does not need to suspend the online service, thereby further improving the user experience.
EXAMPLE III
Fig. 4 is a functional structure diagram of a problem detection apparatus of an optical distribution network according to a third embodiment of the present invention. As shown in fig. 4, the apparatus includes: an acquisition module 41, a sequence generation module 42, and an identification module 43.
An obtaining module 41, adapted to obtain an access distance between an optical network unit and an optical line terminal in the same cell;
a sequence generating module 42, adapted to sequence the access distances according to the order of the access distances between the respective optical network units and the optical line terminal, so as to generate an access distance sequence;
the identifying module 43 is adapted to identify the optical network unit having the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value between adjacent access distances, and/or the service path information to which the optical network unit corresponding to the access distance belongs.
Optionally, the identification module is further adapted to: judging whether the minimum value of the access distance is greater than a first preset distance or not;
if yes, determining that each optical network unit has a cross-region long-distance access problem;
and if not, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
Optionally, the identification module is further adapted to: judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence or not;
if so, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the service path information of the optical network unit corresponding to the access distance;
if not, determining that the optical network units do not have the cross-region long-distance access problem.
Optionally, the service path information to which the optical network unit belongs is specifically a first-stage optical splitter number associated with the optical network unit;
the identification module is further adapted to: respectively acquiring first-level optical splitter numbers associated with two optical network units with adjacent access distances of which the difference value is greater than a second preset distance;
judging whether the serial numbers of the first-level optical splitters associated with the two optical network units are the same;
if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
Optionally, the apparatus further comprises: a received signal quality problem determining module (not shown in the figure) adapted to calculate, for any optical network unit without a cross-region long-distance access problem, a nominal access loss and an actual access loss corresponding to the optical network unit;
and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
Optionally, the received signal quality problem determination module is further adapted to: and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs.
Optionally, after the determining whether the optical network unit has the received signal quality problem, the apparatus further includes: a failure point determining module (not shown in the figure) adapted to generate a first set and a second set according to the determination result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units without receiving signal quality problem; respectively acquiring comparison information of each optical network unit contained in the first set and the second set; wherein the comparison information comprises routing information and physical resource information; matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set; and determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result.
In this embodiment, the specific implementation process of each module may refer to the description of the corresponding part in the first embodiment and/or the second embodiment, which is not described herein again.
Therefore, the method and the device can automatically identify the optical network unit with the cross-region long-distance access problem before the user feeds back the problem so as to process the problem in time; the optical network unit with the cross-region long-distance access problem can be determined from multiple dimensions, and the detection precision is high; moreover, the implementation process of the scheme is simple and easy, the calculated amount is small, and the detection efficiency is high.
Example four
According to a fourth embodiment of the present invention, a non-volatile computer storage medium is provided, where the computer storage medium stores at least one executable instruction, and the computer executable instruction may execute the problem detection method of the optical distribution network in any of the above-described method embodiments.
The executable instructions may be specifically configured to cause the processor to:
acquiring the access distance between an optical network unit and an optical line terminal in the same cell;
sequencing the access distances according to the sequence of the access distances between each optical network unit and the optical line terminal to generate an access distance sequence;
and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
judging whether the minimum value of the access distance is greater than a first preset distance or not;
if yes, determining that each optical network unit has a cross-region long-distance access problem;
and if not, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence or not;
if so, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the service path information of the optical network unit corresponding to the access distance;
if not, determining that the optical network units do not have the cross-region long-distance access problem.
In an optional implementation manner, the service path information to which the optical network unit belongs is specifically a first-level optical splitter number associated with the optical network unit;
the executable instructions may be specifically configured to cause the processor to:
respectively acquiring first-level optical splitter numbers associated with two optical network units with adjacent access distances of which the difference value is greater than a second preset distance;
judging whether the serial numbers of the first-level optical splitters associated with the two optical network units are the same;
if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
aiming at any optical network unit without the cross-region long-distance access problem, calculating the corresponding nominal access loss and the actual access loss of the optical network unit;
and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs.
In an alternative embodiment, the executable instructions may be specifically configured to cause the processor to:
after judging whether the optical network unit has the quality problem of the received signal, generating a first set and a second set according to the judgment result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units without receiving signal quality problem;
respectively acquiring comparison information of each optical network unit contained in the first set and the second set; wherein the comparison information comprises routing information and physical resource information;
matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set;
and determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result.
Therefore, the method and the device can automatically identify the optical network unit with the cross-region long-distance access problem before the user feeds back the problem so as to process the problem in time; the optical network unit with the cross-region long-distance access problem can be determined from multiple dimensions, and the detection precision is high; moreover, the implementation process of the scheme is simple and easy, the calculated amount is small, and the detection efficiency is high.
EXAMPLE five
Fig. 5 is a schematic structural diagram of a computing device according to a fifth embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the computing device.
As shown in fig. 5, a computing device may include: a processor (processor)502, a Communications Interface 504, a memory 506, and a communication bus 508.
Wherein: the processor 502, communication interface 504, and memory 506 communicate with one another via a communication bus 508. A communication interface 504 for communicating with network elements of other devices, such as clients or other servers. The processor 502 is configured to execute the program 510, and may specifically perform relevant steps in the above-described problem detection method embodiment of the optical distribution network.
In particular, program 510 may include program code that includes computer operating instructions.
The processor 502 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement an embodiment of the present invention. The computing device includes one or more processors, which may be the same type of processor, such as one or more CPUs; or may be different types of processors such as one or more CPUs and one or more ASICs.
And a memory 506 for storing a program 510. The memory 506 may comprise high-speed RAM memory, and may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The program 510 may specifically be used to cause the processor 502 to perform the following operations:
acquiring the access distance between an optical network unit and an optical line terminal in the same cell;
sequencing the access distances according to the sequence of the access distances between each optical network unit and the optical line terminal to generate an access distance sequence;
and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
In an alternative embodiment, the program 510 may be specifically configured to cause the processor 502 to perform the following operations:
judging whether the minimum value of the access distance is greater than a first preset distance or not;
if yes, determining that each optical network unit has a cross-region long-distance access problem;
and if not, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
In an alternative embodiment, the program 510 may be specifically configured to cause the processor 502 to perform the following operations:
judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence or not;
if so, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the service path information of the optical network unit corresponding to the access distance;
if not, determining that the optical network units do not have the cross-region long-distance access problem.
In an optional implementation manner, the service path information to which the optical network unit belongs is specifically a first-level optical splitter number associated with the optical network unit;
the program 510 may specifically be used to cause the processor 502 to perform the following operations:
respectively acquiring first-level optical splitter numbers associated with two optical network units with adjacent access distances of which the difference value is greater than a second preset distance;
judging whether the serial numbers of the first-level optical splitters associated with the two optical network units are the same;
if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
In an alternative embodiment, the program 510 may be specifically configured to cause the processor 502 to perform the following operations:
aiming at any optical network unit without the cross-region long-distance access problem, calculating the corresponding nominal access loss and the actual access loss of the optical network unit;
and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
In an alternative embodiment, the program 510 may be specifically configured to cause the processor 502 to perform the following operations:
and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs.
In an alternative embodiment, the program 510 may be specifically configured to cause the processor 502 to perform the following operations:
after judging whether the optical network unit has the quality problem of the received signal, generating a first set and a second set according to the judgment result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units without receiving signal quality problem;
respectively acquiring comparison information of each optical network unit contained in the first set and the second set; wherein the comparison information comprises routing information and physical resource information;
matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set;
and determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result.
Therefore, the method and the device can automatically identify the optical network unit with the cross-region long-distance access problem before the user feeds back the problem so as to process the problem in time; the optical network unit with the cross-region long-distance access problem can be determined from multiple dimensions, and the detection precision is high; moreover, the implementation process of the scheme is simple and easy, the calculated amount is small, and the detection efficiency is high.
The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. In addition, embodiments of the present invention are not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the embodiments of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functionality of some or all of the components according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names. The steps in the above embodiments should not be construed as limiting the order of execution unless specified otherwise.
Claims (10)
1. A problem detection method for an optical distribution network is characterized by comprising the following steps:
acquiring the access distance between an optical network unit and an optical line terminal in the same cell;
sequencing the access distances according to the sequence of the access distances between each optical network unit and the optical line terminal to generate an access distance sequence;
and identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
2. The method according to claim 1, wherein the identifying, according to the minimum access distance value in the access distance sequence, the difference between adjacent access distances, and/or the service path information to which the optical network unit corresponding to the access distance belongs, the optical network unit having the cross-region long-distance access problem further comprises:
judging whether the minimum value of the access distance is greater than a first preset distance or not;
if yes, determining that each optical network unit has a cross-region long-distance access problem;
and if not, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the difference value of the adjacent access distances and the service path information of the optical network unit corresponding to the access distance.
3. The method according to claim 2, wherein the identifying, according to the difference between the adjacent access distances and the service path information to which the optical network unit corresponding to the access distance belongs, the optical network unit having the cross-region long-distance access problem in the optical distribution network further comprises:
judging whether the difference value of adjacent access distances is larger than a second preset distance in the access distance sequence or not;
if so, further identifying the optical network unit with the cross-region long-distance access problem in the optical distribution network according to the service path information of the optical network unit corresponding to the access distance;
if not, determining that the optical network units do not have the cross-region long-distance access problem.
4. The method according to claim 3, wherein the service path information to which the onu belongs specifically includes a first-stage splitter number associated with the onu;
the identifying, according to the service path information to which the optical network unit corresponding to the access distance belongs, that the optical network unit having the cross-region long-distance access problem in the optical distribution network further includes:
respectively acquiring first-level optical splitter numbers associated with two optical network units with adjacent access distances of which the difference value is greater than a second preset distance;
judging whether the serial numbers of the first-level optical splitters associated with the two optical network units are the same;
if not, acquiring a larger value of the access distance in the two optical network units, and identifying the optical network unit corresponding to the access distance which is greater than or equal to the larger value of the access distance in the access distance sequence as the cross-region long-distance access problem.
5. The method according to any one of claims 1-4, further comprising:
aiming at any optical network unit without the cross-region long-distance access problem, calculating the corresponding nominal access loss and the actual access loss of the optical network unit;
and judging whether the optical network unit has the quality problem of the received signal according to the difference value between the actual access loss and the nominal access loss.
6. The method of claim 5, wherein the calculating the nominal access loss of the ONU further comprises: and calculating the nominal access loss corresponding to the optical network unit according to the access distance between the optical network unit and the optical line terminal and the service path information to which the optical network unit belongs.
7. The method according to claim 5, wherein after said determining whether the optical network unit has a received signal quality problem, the method further comprises:
generating a first set and a second set according to the judgment result; the first set is a set of optical network units with a problem of received signal quality; the second set is a set of optical network units without receiving signal quality problem;
respectively acquiring comparison information of each optical network unit contained in the first set and the second set; wherein the comparison information comprises routing information and physical resource information;
matching the comparison information of the optical network units in the first set with the comparison information of the optical network units in the first set;
and determining a fault node corresponding to the optical network unit with the quality problem of the received signal according to the matching result.
8. An apparatus for detecting problems in an optical distribution network, comprising:
the acquisition module is suitable for acquiring the access distance between the optical network unit and the optical line terminal in the same cell;
the sequence generation module is suitable for sequencing the access distances according to the sequence of the access distances between the optical network units and the optical line terminal so as to generate an access distance sequence;
and the identification module is suitable for identifying the optical network unit with the cross-region long-distance access problem according to the minimum access distance value in the access distance sequence, the difference value of adjacent access distances and/or the service path information of the optical network unit corresponding to the access distance.
9. A computing device, comprising: the system comprises a processor, a memory, a communication interface and a communication bus, wherein the processor, the memory and the communication interface complete mutual communication through the communication bus;
the memory is used for storing at least one executable instruction, and the executable instruction causes the processor to execute the operation corresponding to the problem detection method of the optical distribution network according to any one of claims 1-7.
10. A computer storage medium having at least one executable instruction stored therein, the executable instruction causing a processor to perform operations corresponding to the problem detection method of the optical distribution network according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698936.1A CN113965834B (en) | 2020-07-20 | 2020-07-20 | Method and device for detecting problems of optical distribution network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010698936.1A CN113965834B (en) | 2020-07-20 | 2020-07-20 | Method and device for detecting problems of optical distribution network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113965834A true CN113965834A (en) | 2022-01-21 |
| CN113965834B CN113965834B (en) | 2023-09-19 |
Family
ID=79459619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010698936.1A Active CN113965834B (en) | 2020-07-20 | 2020-07-20 | Method and device for detecting problems of optical distribution network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113965834B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008017301A (en) * | 2006-07-07 | 2008-01-24 | Ntt Docomo Inc | Short-range radio communication terminal and security level setting method |
| CN102055523A (en) * | 2009-11-09 | 2011-05-11 | ***通信集团江苏有限公司 | Method, equipment and system for diagnosing failure of passive optical network |
| CN102223185A (en) * | 2010-04-14 | 2011-10-19 | 中兴通讯股份有限公司 | Method and system for determining topology structure of passive optical network |
| CN103414962A (en) * | 2013-07-26 | 2013-11-27 | 大连海事大学 | Large-scale user access oriented LR-PON layout planning method |
| US20140043745A1 (en) * | 2012-08-10 | 2014-02-13 | Waveconnex, Inc. | Ehf enabled display systems |
| CN104768164A (en) * | 2015-04-08 | 2015-07-08 | 杭州华三通信技术有限公司 | Method and device for dynamically adjusting wireless coverage area |
| CN106714189A (en) * | 2015-11-13 | 2017-05-24 | ***通信集团广东有限公司 | Method and device for analyzing cell over coverage |
| CN108964756A (en) * | 2017-05-18 | 2018-12-07 | 中兴通讯股份有限公司 | Fault detection method and device, the passive optical network of Optical Distribution Network |
| CN109995561A (en) * | 2017-12-30 | 2019-07-09 | ***通信集团福建有限公司 | Method, apparatus, equipment and the medium of communication network failure positioning |
| CN110012418A (en) * | 2017-12-31 | 2019-07-12 | ***通信集团湖北有限公司 | Recognition methods, device, equipment and the medium of wireless network covering problem |
-
2020
- 2020-07-20 CN CN202010698936.1A patent/CN113965834B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008017301A (en) * | 2006-07-07 | 2008-01-24 | Ntt Docomo Inc | Short-range radio communication terminal and security level setting method |
| CN102055523A (en) * | 2009-11-09 | 2011-05-11 | ***通信集团江苏有限公司 | Method, equipment and system for diagnosing failure of passive optical network |
| CN102223185A (en) * | 2010-04-14 | 2011-10-19 | 中兴通讯股份有限公司 | Method and system for determining topology structure of passive optical network |
| US20140043745A1 (en) * | 2012-08-10 | 2014-02-13 | Waveconnex, Inc. | Ehf enabled display systems |
| CN103414962A (en) * | 2013-07-26 | 2013-11-27 | 大连海事大学 | Large-scale user access oriented LR-PON layout planning method |
| CN104768164A (en) * | 2015-04-08 | 2015-07-08 | 杭州华三通信技术有限公司 | Method and device for dynamically adjusting wireless coverage area |
| CN106714189A (en) * | 2015-11-13 | 2017-05-24 | ***通信集团广东有限公司 | Method and device for analyzing cell over coverage |
| CN108964756A (en) * | 2017-05-18 | 2018-12-07 | 中兴通讯股份有限公司 | Fault detection method and device, the passive optical network of Optical Distribution Network |
| CN109995561A (en) * | 2017-12-30 | 2019-07-09 | ***通信集团福建有限公司 | Method, apparatus, equipment and the medium of communication network failure positioning |
| CN110012418A (en) * | 2017-12-31 | 2019-07-12 | ***通信集团湖北有限公司 | Recognition methods, device, equipment and the medium of wireless network covering problem |
Non-Patent Citations (1)
| Title |
|---|
| 罗正华: "长距离PON接入技术研究", 《电子科技大学学报》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113965834B (en) | 2023-09-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111431758B (en) | Cloud network equipment testing method and device, storage medium and computer equipment | |
| CN110661569B (en) | Method, device and storage medium for optical fiber fault location | |
| CN111865627B (en) | Transmission networking evaluation method, device, computing equipment and computer storage medium | |
| CN110493670B (en) | Optical cable interruption judgment method and device | |
| CN109325028A (en) | A kind of reconciliation file verification method and terminal device | |
| CN106407002A (en) | Data processing task execution method and device | |
| CN107203464B (en) | Method and device for positioning service problem | |
| CN111865628A (en) | Statistical system, method, server and storage medium for influencing user by home wide fault | |
| CN114637321A (en) | Cable monitoring system based on image data optimization path | |
| CN102571495B (en) | Method and device for checking network topological structure for wire arrangement of printed circuit board | |
| CN110503297A (en) | Business scenario acquisition methods, device, electronic equipment and medium | |
| CN113965834A (en) | Problem detection method and device for optical distribution network | |
| CN115174638B (en) | Networking method and system for photovoltaic panel data acquisition equipment | |
| US20120260231A1 (en) | Code conversion method, apparatus, storage medium and request remaining time response method | |
| CN115187821B (en) | Method, related device and program product for verifying correctness of model before and after conversion | |
| CN116192245A (en) | PON network-based fault diagnosis method, system, equipment and storage medium | |
| CN113766363B (en) | Fault monitoring method and device and computing equipment | |
| CN111193631A (en) | Information processing method, system, and computer-readable storage medium | |
| CN104899364B (en) | A kind of standard block system of selection for organs weight | |
| CN110830107B (en) | Optical broadband network fault positioning method and device | |
| CN110166295B (en) | Method for judging whether network topology supports Byzantine fault tolerance or not | |
| CN114826908A (en) | Kubernets cluster service guarantee method, assembly and system | |
| CN112804709B (en) | Method and device for determining overlapping coverage condition between serving cells | |
| CN117331908B (en) | Online capacity expansion method and system device for real-time database | |
| CN115277370A (en) | Method, device and equipment for determining root cause node of operation and maintenance system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |