KR20240053269A - Apparatus and method for analyzing failure section in optical fiber - Google Patents

Abstract

The present invention relates to an optical cable failure section analysis method and an optical cable failure section analysis device. The optical cable failure section analysis method according to an embodiment of the present invention is an optical cable failure section analysis method in a communication network connecting a national office and a plurality of communication devices with an optical cable. An analysis method comprising: receiving an alert message from a plurality of communication devices; Determining whether there is a line failure in the optical cable from the warning message; generating route information on optical cables connecting the communication devices that transmit the warning message and the central office; Comparing the route information and specifying overlapping sections as fault sections including a fault point where the line fault occurs; And it may include the step of correcting the failure section using path information of non-failure communication devices that did not transmit the warning message among communication devices sharing the failure section.

Description

Optical cable failure section analysis method and optical cable failure section analysis device {Apparatus and method for analyzing failure section in optical fiber}

The present invention relates to an optical cable failure section analysis method and an optical cable failure section analysis device that accurately determines and informs in which optical cable section the failure occurred when a line failure occurs in an optical cable.

Optical cables in optical communication networks can be damaged or disconnected by heavy equipment construction or rodents, and in this case, communication failures may occur. Conventionally, the disconnection distance to the location where the optical cable was disconnected was determined using OTDR equipment, the actual location corresponding to the disconnection distance was confirmed on the map, and then fault recovery work was performed at that location.

However, in order to constantly monitor the faulty section of the optical cable using OTDR (Optical Time Domain Reflectometer) equipment, it is necessary to provide an optical core that passes the same route as the optical cable to be monitored and is not in service. In this case, because the cable operation rate decreases, it is difficult for telecommunication operators to apply the constant monitoring function to all optical cables in use.

Additionally, if a break occurs in a cable that is not constantly monitored, operator intervention is required to confirm the location of the fault. In other words, the optical core that is confirmed to have a failure is temporarily connected to the OTDR equipment for measurement, and then the location of the disconnection is identified. However, there is a problem with this work in that it is not suitable for full automation and time reduction of line failure recognition and recovery work.

Republic of Korea Patent Publication No. 10-2010-0000108

The present invention provides an optical cable fault section analysis method and an optical cable fault section analysis device that can analyze the fault section of an optical cable based on GIS (Geographical Information System) information without having to check disconnection using OTDR equipment when a line failure of an optical cable occurs. It is for this purpose.

The present invention is intended to provide an optical cable failure section analysis method and an optical cable failure section analysis device that can refine the failure section based on path information of non-fault communication devices.

The optical cable failure section analysis method according to an embodiment of the present invention relates to an optical cable failure section analysis method in a communication network that connects a national office and a plurality of communication devices with an optical cable, and includes the step of receiving an alarm message from a plurality of communication devices. ; Determining whether there is a line failure in the optical cable from the warning message; generating route information on optical cables connecting the communication devices that transmit the warning message and the central office; Comparing the route information and specifying overlapping sections as fault sections including a fault point where the line fault occurred; And it may include the step of correcting the failure section using path information of non-failure communication devices that did not transmit the warning message among communication devices sharing the failure section.

Here, the step of generating each of the route information involves creating an optical cable information database in which analysis target data including the location coordinates of the communication device displayed on a geographic information system (GIS) and connection information of the optical cables are stored. The route information may be generated by referring to the route information.

Here, the step of generating each of the route information includes checking the separation distance between the position coordinate value of the communication device and the end point of the optical cable from the analysis target data, or the presence of an optical terminal for connection between the communication device and the optical cable. , it may be to determine the suitability of the route information.

Here, the step of generating each of the route information may include excluding the route information when the separation distance is greater than a set value or when the optical terminal is absent.

Here, in the step of generating each of the route information, if the separation distance is more than a set value and the optical terminal exists, an additional connection path connecting the end point of the optical cable and the communication device is further searched, and the additional connection path is searched for. When the connection path is confirmed, the path information may be updated to include the additional connection path.

Here, the step of specifying the failure section includes distinguishing each node and link included in the path information, counting the number of times each node and link included in the plurality of path information overlaps, and counting the number of times each node and link included in the plurality of path information overlaps. The section connecting the node and links having the maximum value may be specified as the failure section.

Here, the step of modifying the failure section may be modifying the failure section to exclude a section that overlaps with the path information of the non-failure communication device among the failure sections.

Here, the step of correcting the failure section may be determining the suitability of the route information for the non-faulty communication devices.

Here, in the step of correcting the failure section, if there are no non-failure communication devices among the communication devices sharing the failure section, the fault section is moved from the node furthest from the station to the point within the set distance radius of the failure section. It may be modified by section.

Here, the optical cable failure section analysis method according to an embodiment of the present invention may further include the step of visually displaying the failure section on the control screen using a geographic information system.

According to an embodiment of the present invention, a computer program stored in a medium can be implemented in combination with hardware to perform the above-described optical cable failure section analysis method.

The optical cable failure section analysis device according to an embodiment of the present invention relates to an optical cable failure section analysis device for a communication network that connects a national office and a plurality of communication devices with an optical cable, and receives an alarm message from a plurality of communication devices. collection department; a line failure determination unit that determines whether there is a line failure in the optical cable from the alarm message; And if it is determined that the line failure is, path information of optical cables connecting the failed communication devices that transmitted the warning message and the national office is generated, and the path information is compared, and overlapping sections are selected from the line failure. It is specified as a failure section including a point, and may include a failure section analysis unit that modifies the failure section using path information of non-fault communication devices that did not transmit the alarm message among communication devices sharing the failure section. .

Here, the fault section analysis unit refers to the optical cable information database in which analysis target data including the location coordinate value of the communication device displayed on a geographic information system (GIS: Geographic Information System) and connection information of the optical cables are stored. It may be generating information.

Here, the fault section analysis unit determines the location coordinate value of the communication device and the separation distance of the end point of the optical cable from the analysis target data, or the presence or absence of an optical terminal for connection between the communication device and the optical cable, and determines the route information. This may be to determine suitability.

Here, if the separation distance is more than the set value and the optical terminal exists, the fault section analysis unit further searches for an additional connection path connecting the end point of the optical cable and the communication device, and confirms the additional connection path. If so, the route information may be updated to include the additional connection route.

Here, the failure section analysis unit may modify the failure section to exclude a section that overlaps with the path information of the non-failure communication device among the failure sections.

Here, if there are no non-faulty communication devices among the communication devices sharing the faulty section, the faulty section analysis unit determines the faulty section to be a point within a set distance radius from the node furthest from the station among the faulty sections. It may be something to modify.

Here, the optical cable failure section analysis device according to an embodiment of the present invention may further include a control screen unit that visually displays the failure section using a geographic information system.

Additionally, the means for solving the above problems do not enumerate all the features of the present invention. The various features of the present invention and the resulting advantages and effects can be understood in more detail by referring to the specific embodiments below.

According to the optical cable failure section analysis method and optical cable failure section analysis device according to an embodiment of the present invention, when a line failure of an optical cable occurs, it is possible to analyze the failure section of the optical cable based on GIS information without having to check disconnection using OTDR equipment. do. Therefore, the fault section can be identified on the actual map more quickly and accurately than when using OTDR equipment.

According to the optical cable failure section analysis method and optical cable failure section analysis device according to an embodiment of the present invention, the failure section can be refined based on path information of non-fault communication devices. Therefore, it is possible to more easily perform recovery work on the fault section.

Figure 1 is a schematic diagram showing an optical cable failure section analysis system according to an embodiment of the present invention.
Figures 2 and 3 are schematic diagrams showing a failure section analysis method according to an embodiment of the present invention.
Figure 4 is a flowchart showing a method for analyzing an optical cable failure section according to an embodiment of the present invention.

Hereinafter, with reference to the attached drawings, preferred embodiments will be described in detail so that those skilled in the art can easily practice the present invention. However, when describing preferred embodiments of the present invention in detail, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description will be omitted. In addition, the same symbols are used throughout the drawings for parts that perform similar functions and actions.

Additionally, throughout the specification, when a part is said to be 'connected' to another part, this does not only mean 'directly connected', but also 'indirectly connected' with another element in between. Includes. In addition, 'including' a certain component does not mean excluding other components, but may further include other components, unless specifically stated to the contrary. Additionally, terms such as “unit” and “module” used in the specification refer to a unit that processes at least one function or operation, which may be implemented as hardware or software, or as a combination of hardware and software.

Figure 1 is a schematic diagram showing an optical cable failure section analysis system according to an embodiment of the present invention.

Referring to Figure 1, the optical cable failure section analysis system according to an embodiment of the present invention may include a communication network (N) and an optical cable failure section analysis device 100.

Hereinafter, an optical cable failure section analysis system according to an embodiment of the present invention will be described with reference to FIG. 1.

The communication network (N) is constructed to provide various communication services to users within the target area, and may include multiple communication devices (C1, C2, C3, ..., Cn) and optical cables to connect them. there is. Communication devices (C1, C2, C3, ..., Cn) are OLT (Optical Line Terminal), ONU (Optical Network Unit), ONT (Optical Network Terminal), and OXC (Optical Cross Connect) to relay communication through optical cables. ), an optical splitter, etc., and in addition, various types of communication devices may be included depending on the embodiment. Telecommunications operators can build communication networks (N) to provide various communication services such as cable broadcasting, wired and wireless Internet services, OTT (Over the Top) services, and dedicated line services, and use communication devices (C1, C2, C3, . .., various user terminals or servers connected to Cn) can access the communication network (N). A plurality of optical cores may be included in one optical cable, and each optical core may individually transmit communication data. For example, one optical cable may include 32, 64, or 128 optical cores.

The optical cable failure section analysis device 100 may be located within the central office of the communication network (N), detects line failures that occur on the communication network (N), and records the fault section where the line failure occurred in GIS (Geographical Information System) information. It can be analyzed based on In other words, the optical cable failure section analysis device 100 can automatically analyze the failure section of the optical cable in which an actual failure occurred based on GIS information without using OTDR (Optical Time Domain Reflectometer) equipment. Depending on the embodiment, it is possible to include the optical cable failure section analysis device 100 as a component or part of the function in the line control system built by the communication service provider to manage the communication network (N).

As shown in Figure 1, the optical cable failure section analysis device 100 may include an alarm collection unit 110, a line failure determination unit 120, a failure section analysis unit 130, and a control screen unit 140. You can.

The alarm collection unit 110 can receive various alarm messages from a plurality of communication devices (C1, C2, ..., Cn). The communication devices (C1, C2, ..., Cn) can transmit corresponding alarm messages according to various failures or errors that occur during the communication process, and the optical cable failure section analysis device 100 is connected to the alarm collection unit 110. You can collect each alarm message using .

The line failure determination unit 120 can use various alarm messages collected by the alarm collection unit 110 to determine whether there is a line failure in the optical cable. For example, if the optical cable is damaged or disconnected due to heavy equipment construction, vehicle accidents, rodents, etc., the communication devices (C1, C2, ..., Cn) connected to the optical cable will not be able to communicate, so the communication devices (C1, C2) , ... , Cn) can transmit alarm messages related to line failures. In this case, the line failure determination unit 120 can collect and analyze the alarm messages transmitted by each communication device (C1, C2, ..., Cn), and through this, the optical cable within the corresponding communication network (N) It can be determined that a line failure has occurred.

Here, since the communication devices (C1, C2, ..., Cn) can transmit alarm messages for various reasons other than line failure, the line failure determination unit 120 transmits a plurality of alarm messages transmitted by the alarm collection unit 110. Among these, alarm messages about line failures can be filtered. For example, the line failure determination unit 120 can check whether warning messages for LOS (Loss of Signal), SD (Signal Degrade), etc. are included, and if these warning messages are included, it can be determined that a line failure has occurred. You can. However, since each communication device may have different types and forms of warning messages for each device and manufacturer, the line failure determination unit 120 may be set in advance to determine whether there is a line failure by reflecting these.

If it is determined that there is a line failure, the fault section analysis unit 130 can generate path information for optical cables connecting the faulty communication devices that transmitted the warning message and the central office. That is, among a plurality of communication devices, the faulty communication devices that transmitted the alarm message can be distinguished, and the optical cables connecting the faulty communication devices and the central office can be identified to generate path information for these faulty communication devices.

At this time, the fault section analysis unit 130 may refer to the optical cable information database (D). The optical cable information database (D) may store analysis target data including the address or location coordinates of the communication device displayed on the geographic information system, optical terminal information for connecting the communication device and the optical cable, and connection information of the optical cables. . In other words, the fault section analysis unit 130 can generate route information based on GIS information so that it can be displayed on a map.

In addition, the fault section analysis unit 130 determines the separation distance between the location coordinate value of the communication device and the end point of the optical cable, the presence or absence of an optical terminal for connection between the communication device and the optical cable, and whether there is an error in the installation address of the communication device from the data to be analyzed. can be checked, and through this, the suitability of the route information can be determined. For example, if the location coordinates of the communication device and the end point of the optical cable are separated by a certain distance or if there is no optical terminal for connection, it is difficult to see that the actual optical cable is connected to the communication device, so the route information cannot be trusted. It can be judged that Therefore, the failure section analysis unit 130 can check the analysis target data to determine suitability, and if it is determined that suitability is poor, the failure section can be determined excluding the corresponding route information.

Here, the failure section analysis unit 130 can determine suitability by comparing each preset reference value. For example, the installation address of the communication device can be compared with the address on the geographic information system, and it can be confirmed whether the separation distance between the location coordinate value of the communication device and the end point of the optical cable is more than the limit distance range. In addition, the presence or absence of an optical terminal can be determined by checking the optical cable information database (D). That is, the fault section analysis unit 130 can determine the suitability of each analysis target data by comparing it with a preset reference value, and can exclude path information generated using analysis target data with poor suitability.

Additionally, depending on the embodiment, there may be cases where the separation distance between the position coordinate value of the communication device and the end point of the optical cable is greater than the limit distance range, but an optical terminal exists. In this case, the fault section analysis unit 130 may further search for additional connection paths connecting the end point of the optical cable and the communication device. In other words, if the separation distance is more than the limit distance range but an optical terminal exists, there may be another path connected to the optical terminal, so connection can be confirmed through additional search. Here, if an additional connection path is confirmed, the failure section analysis unit 130 may update the path information to include the additional connection path instead of excluding the corresponding path information.

Afterwards, the failure section analysis unit 130 can exclude route information that is not suitable, include updated route information to include additional connection paths, and finally determine route information for analysis of the failure section. In other words, there may be a plurality of communication devices that transmitted the warning message, but the fault section analysis unit 130 can filter and utilize only the communication devices determined to be suitable for fault section analysis and the path information of the corresponding optical cables. Through this, the accuracy of the failure section analysis results can be improved.

Additionally, the fault section analysis unit 130 may compare route information and specify overlapping sections as fault sections including the fault point where a line fault occurs. Since the connection information of optical cables is generated based on GIS information, it can be displayed in the form of nodes and links. Here, the node may be an OSP (Out-Side Plant) such as a manhole or a telecommunication company that is defined and managed by the telecommunication service provider. Therefore, as shown in Figure 2, each route information (R1, R2) can be represented as nodes and links connecting them.

Here, the failure section analysis unit 130 can count the number of overlapping nodes and links included in each path information, and connect the nodes and links with the maximum number of overlaps to primarily determine the failure section. It can be specified as: Referring to Figure 2, two path information (R1, R2) for the first node (N1) and the second node (N2) corresponding to the faulty communication device in which a failure occurred, may be generated, respectively. Here, according to the route information (R1, R2), the links from the bureau B to the four nodes connected have an overlap count of 2, and the links to the remaining nodes have an overlap count of 1. In other words, since the maximum number of duplicates is 2, the failure section (A1) can be set to include the four nodes connected from the central office (B) and the links connecting them.

Thereafter, the failure section analysis unit 130 may modify the failure section A1 using path information of non-failure communication devices that did not transmit an alarm message among communication devices sharing the failure section. That is, if there is a section among the faulty sections that overlaps with the route information of the non-faulty communication device, the faulty section can be modified to exclude the corresponding section.

As shown in Figure 2, referring to the path information (R3) of the non-failure communication device, the failure section (A1) is shared from the station (B) to the first three nodes, but the failure section (A1) corresponding to the third node (N3) is shared. It can be confirmed that no failure occurs in non-faulty communication devices. In other words, it can be seen that no disconnection or damage to the optical cable occurred from the bureau (B) to the first three nodes, and it can be determined that damage or disconnection of the optical cable occurred between the third and fourth nodes. Accordingly, the failure section analysis unit 130 may set a modified failure section (A2) by limiting the failure section (A1) to between the third and fourth nodes.

Here, the failure section analysis unit 130 can determine the suitability of the path information (R3) of the non-failure communication device, and can correct the failure section only for the path information whose suitability is recognized. At this time, the suitability of the path information (R3) of the non-faulty communication device can be determined in the same way as the suitability of the path information of the failed communication device described above.

Meanwhile, depending on the embodiment, there may be cases where there are no non-faulty communication devices among the communication devices sharing the faulty section. That is, as shown in FIG. 3, there are only nodes (N1, N2) that have failed, and there may be no non-faulty communication devices sharing the failed section (A1). Generally, when laying an optical cable, a telecommunications service provider starts from the communication port within the national office (B) and lays the optical cable in the same direction moving away from the national office (B). Therefore, in the case of an optical cable extending from the national office (B), the optical cable will be relatively long. You can. Accordingly, the fault section analysis unit 130 can modify the fault section from the node furthest from the station to a point within the set distance radius as the fault section. In other words, as shown in Figure 3, the modified fault section (A2) can be set to a point within the set distance radius (d) based on the node furthest from the station (B) among the fault sections (A1). there is. Through this, even when there is no non-faulty communication device sharing the faulty section (A1), the faulty section can be limited to a minimum.

The control screen unit 140 can visually display the fault section using a geographic information system. In other words, since the fault section is created based on GIS information, it is possible to visually display it on the map. Through this, controllers and field dispatchers can accurately recognize the fault section and quickly dispatch to the fault section to perform recovery work, such as setting communication traffic to bypass the fault section.

Figure 4 is a flow chart showing a method for analyzing an optical cable failure section according to an embodiment of the present invention. Here, the optical cable failure section analysis method according to an embodiment of the present invention may be performed by an optical cable failure section analysis device.

Referring to Figure 4, the optical cable failure section analysis device can receive an alarm message from a plurality of communication devices (S110). The communication device can transmit corresponding alarm messages according to various failures or errors that occur during the communication process, and the optical cable failure section analysis device can collect each alarm message.

Afterwards, the optical cable failure section analysis device can determine whether there is a line failure for the optical cable using the collected alarm messages (S120). When an optical cable is damaged or disconnected, communication devices connected to the optical cable become unable to communicate, so the communication devices can transmit an alarm message related to a line failure. In this case, the optical cable failure section analysis device can collect and analyze the alarm messages transmitted by each communication device, and through this, it can be determined that a line failure has occurred within the corresponding communication network. Here, since communication devices can transmit alarm messages for various reasons other than line failure, the optical cable failure section analysis device can filter out alarm messages related to line failure from among the plurality of transmitted alarm messages. For example, an optical cable failure section analysis device can check whether warning messages for LOS (Loss of Signal), SD (Signal Degrade), etc. are included, and if these alarm messages are included, it can be determined that a line failure has occurred. .

Afterwards, if it is determined to be a line failure, the optical cable failure section analysis device can generate path information for optical cables connecting the failed communication devices that transmitted the alarm message and the central office (S130). That is, among a plurality of communication devices, the faulty communication devices that transmitted the alarm message can be distinguished, and the optical cables connecting the faulty communication devices and the central office can be identified to generate path information for these faulty communication devices. At this time, the optical cable failure section analysis device may refer to the optical cable information database. The optical cable information database may store analysis target data including the address or location coordinates of the communication device displayed on the geographic information system, optical terminal information for connecting the communication device and the optical cable, and connection information of the optical cables. In other words, the optical cable failure section analysis device can generate route information based on GIS information so that it can be displayed on a map.

Afterwards, the optical cable failure section analysis device checks the location coordinates of the communication device and the separation distance between the end points of the optical cable, the presence or absence of an optical terminal for connection between the communication device and the optical cable, and whether there is an error in the installation address of the communication device from the data to be analyzed. Through this, the suitability of the route information can be determined (S140). For example, if the location coordinates of the communication device and the end point of the optical cable are separated by a certain distance or if there is no optical terminal for connection, it is difficult to see that the actual optical cable is connected to the communication device, so the route information cannot be trusted. It can be judged that Therefore, the optical cable failure section analysis device can check the analysis target data to determine suitability (S140), and if suitability is determined to be poor, the failure section can be determined excluding the corresponding path information.

Here, the optical cable failure section analysis device can determine suitability by comparing each preset reference value. For example, the installation address of the communication device can be compared with the address on the geographic information system, and it can be confirmed whether the separation distance between the location coordinate value of the communication device and the end point of the optical cable is more than the limit distance range. Additionally, the presence or absence of an optical terminal can be determined by checking the optical cable information database. In other words, the suitability of each analysis target data can be determined by comparing it with a preset standard value, and path information generated using analysis target data with poor suitability can be excluded.

Additionally, depending on the embodiment, there may be cases where the separation distance between the position coordinate value of the communication device and the end point of the optical cable is greater than the limit distance range, but an optical terminal exists. In this case, the optical cable failure section analysis device can further search for additional connection paths connecting the end point of the optical cable and the communication device (S150). In other words, although the separation distance is more than the limit distance range, there may be another path connected to the optical terminal, so connection can be confirmed through additional search. Here, if an additional connection path is confirmed, the route information can be updated to include the additional connection path instead of excluding the corresponding route information.

Afterwards, the optical cable failure section analysis device can exclude path information that is not suitable, include updated path information to include additional connection paths, and finally determine the path information for the failure section analysis. In other words, there may be multiple communication devices that transmitted the alarm message, but the optical cable failure section analysis device can filter and utilize only the communication devices determined to be suitable for analysis of the failure section and the path information of the corresponding optical cables, and through this, The accuracy of section analysis results can be improved.

The optical cable failure section analysis device can compare route information and specify overlapping sections as failure sections including the failure point where the line failure occurred (S160). Since the connection information of optical cables is created based on GIS information, it can be displayed in the form of nodes and links. Therefore, each route information can be expressed as nodes and links connecting them.

Here, the optical cable failure section analysis device can count the number of overlapping nodes and links included in each path information, and connects the nodes and links with the maximum number of overlaps to primarily identify the failure section. can do.

Here, the optical cable failure section analysis device can determine the suitability of the path information of the non-failure communication device (S170), and can then correct the failure section using the path information whose suitability has been recognized. At this time, the suitability of the path information of the non-faulty communication device can be determined in the same way as the suitability of the path information of the failed communication device described above.

If the suitability of the path information of the non-faulty communication device is recognized, the optical cable fault section analysis device can modify the faulty section using the path information of non-faulty communication devices that did not transmit an alarm message among communication devices sharing the faulty section ( S180). That is, if there is a section among the faulty sections that overlaps with the route information of the non-faulty communication device, the faulty section can be modified to exclude the corresponding section.

For example, there may be a case where the failure section is from the central office to the first 4 nodes, and the route information of the non-faulty communication device shares the failure section from the central office to the first 3 nodes. In this case, since there is no line failure in the non-faulty communication device, it can be seen that no disconnection or damage to the optical cable has occurred, at least from the central office to the first three nodes. Therefore, since there is no line failure up to the first three nodes in the existing fault section, it can be determined that damage or disconnection of the optical cable occurred between the remaining third and fourth nodes. Accordingly, the optical cable failure section analysis device can modify the failure section to limit the failure section to between the third and fourth nodes.

Meanwhile, depending on the embodiment, there may be cases where there are no non-faulty communication devices among the communication devices sharing the faulty section. In this case, the optical cable failure section analysis device can modify the failure section from the node furthest from the station to the point within the set distance radius as the failure section. In other words, when a communication service provider lays an optical cable, it starts from the communication port within the national office and lays the optical cable in the same direction moving away from the national office, so optical cables extending from the national office are generally set to be relatively long. Therefore, points in the fault section that are close to the national office can be excluded from the fault section, and for this, the fault section can be modified to a point within the set distance radius based on the node furthest from the national office among the fault sections. Through this, even when there is no non-faulty communication device sharing the faulty section, it is possible to limit the faulty section to a minimum.

At this time, the optical cable failure section analysis device can visually display the failure section on the control screen using a geographic information system. In other words, since the fault section is created based on GIS information, it is possible to display it on the map within the control screen. Through this, controllers and field dispatchers can accurately recognize the fault section, quickly dispatch to the fault section, and perform recovery work, such as setting communication traffic to bypass the fault section. Depending on the embodiment, it is also possible to implement an optical cable failure section analysis device to specify the corresponding failure section and automatically request on-site dispatch for recovery work through a user terminal of a facility management person.

The above-described present invention can be implemented as computer-readable code on a program-recorded medium. A computer-readable medium may continuously store a computer-executable program or temporarily store it for execution or download. In addition, the medium may be a variety of recording or storage means in the form of a single or several pieces of hardware combined. It is not limited to a medium directly connected to a computer system and may be distributed over a network. Examples of media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical recording media such as CD-ROMs and DVDs, magneto-optical media such as floptical disks, And there may be something configured to store program instructions, including ROM, RAM, flash memory, etc. Additionally, examples of other media include recording or storage media managed by app stores that distribute applications, sites or servers that supply or distribute various other software, etc. Accordingly, the above detailed description should not be construed as restrictive in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

The present invention is not limited to the above-described embodiments and attached drawings. For those skilled in the art to which the present invention pertains, it will be clear that components according to the present invention can be replaced, modified, and changed without departing from the technical spirit of the present invention.

100: Optical cable failure section analysis device 110: Alarm collection unit
120: Track failure determination unit 130: Failure section analysis unit
140: Control screen unit

Claims (18)

In a method of analyzing optical cable failure sections in a communication network that connects a national office and multiple communication devices with optical cables,
Receiving an alarm message from a plurality of communication devices;
Determining whether there is a line failure in the optical cable from the warning message;
generating route information on optical cables connecting the communication devices that transmit the warning message and the central office;
Comparing the route information and specifying overlapping sections as fault sections including a fault point where the line fault occurred; and
An optical cable failure section analysis method comprising the step of correcting the failure section using path information of non-failure communication devices that did not transmit the warning message among communication devices sharing the failure section.
The method of claim 1, wherein the step of generating each of the route information is
Generating the route information by referring to an optical cable information database in which analysis target data including connection information of the optical cables and location coordinate values of the communication device displayed on a geographic information system (GIS) are stored, Optical cable failure section analysis method.
The method of claim 2, wherein the step of generating each of the route information is
Determining the suitability of the route information by checking the separation distance between the position coordinate value of the communication device and the end point of the optical cable from the analysis target data, or the presence of an optical terminal for connection between the communication device and the optical cable. , Optical cable failure section analysis method.
The method of claim 3, wherein the step of generating each of the route information is
A method for analyzing an optical cable failure section, wherein the route information is excluded when the separation distance is more than a set value or the optical terminal is absent.
The method of claim 4, wherein the step of generating each of the route information is
If the separation distance is more than the set value and the optical terminal exists, an additional connection path connecting the end point of the optical cable and the communication device is further searched, and if the additional connection path is confirmed, the additional connection path is included. A method of analyzing an optical cable failure section, which updates the route information so as to do so.
The method of claim 1, wherein the step of specifying the fault section is
Each node and link included in the route information is distinguished, the number of overlaps of each node and link included in the plurality of route information is counted, and the nodes and links having the maximum number of overlaps are connected. A method of analyzing an optical cable failure section, wherein one section is specified as the failure section.
The method of claim 1, wherein the step of modifying the fault section is
A method of analyzing an optical cable failure section, wherein the failure section is modified to exclude a section that overlaps with the path information of the non-failure communication device among the failure sections.
The method of claim 7, wherein the step of modifying the fault section is
An optical cable failure section analysis method that determines the suitability of the route information for the non-failure-free communication devices.
The method of claim 1, wherein the step of modifying the fault section is
If there are no non-failure communication devices among the communication devices sharing the fault section, the fault section is modified to the point within the set distance radius from the node furthest from the station among the fault sections. Analysis method.
According to paragraph 1,
A method of analyzing an optical cable failure section, further comprising the step of visually displaying the failure section on a control screen using a geographic information system.
A computer program stored in a medium in combination with hardware to perform the optical cable failure section analysis method according to any one of claims 1 to 10.
In the optical cable failure section analysis device for a communication network connecting a national office and a plurality of communication devices with an optical cable,
An alarm collection unit that receives alarm messages from a plurality of communication devices;
a line failure determination unit that determines whether there is a line failure in the optical cable from the warning message; and
If it is determined to be a line failure, path information of optical cables connecting the failed communication devices that transmitted the warning message and the national office is generated, and the path information is compared to identify overlapping sections as the fault point where the line disorder occurred. An optical cable failure section that is specified as a fault section and includes a fault section analysis unit that corrects the fault section using path information of non-fault communication devices that did not transmit the alarm message among communication devices sharing the fault section. Analysis device.
The method of claim 12, wherein the failure section analysis unit
Generating the route information by referring to an optical cable information database in which analysis target data including connection information of the optical cables and location coordinate values of the communication device displayed on a geographic information system (GIS) are stored, Optical cable failure section analysis device.
The method of claim 13, wherein the failure section analysis unit
Determining the suitability of the route information by checking the location coordinate value of the communication device and the separation distance of the end point of the optical cable from the analysis target data, or the presence or absence of an optical terminal for connection between the communication device and the optical cable, Optical cable failure section analysis device.
The method of claim 14, wherein the failure section analysis unit
If the separation distance is more than the set value and the optical terminal exists, an additional connection path connecting the end point of the optical cable and the communication device is further searched, and if the additional connection path is confirmed, the additional connection path is included. An optical cable failure section analysis device that updates the route information so as to do so.
The method of claim 12, wherein the failure section analysis unit
An optical cable failure section analysis device that modifies the failure section to exclude a section that overlaps with the path information of the non-failure communication device among the failure sections.
The method of claim 12, wherein the failure section analysis unit
If there are no non-failure communication devices among the communication devices sharing the fault section, the fault section is modified to a point within a set distance radius from the node furthest from the station among the fault sections. Section analysis device.
According to clause 12,
An optical cable fault section analysis device further comprising a control screen unit that visually displays the fault section using a geographic information system.

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