Method and system for managing underground distribution cable, and computer recording medium comprising the same

Abstract

An underground power distribution cable fault diagnosis management system and a method are provided that link fault information and diagnosis information. The method for managing underground power distribution cables includes: i) providing map information of a plurality of underground power distribution cables based on a geographic information system (GIS); ii) providing diagnosis information of one or more of the plurality of underground power distribution cables corresponding to the map information; iii) providing fault information of one or more of the plurality of underground power distribution cables corresponding to the map information; and iv) displaying the diagnosis information and fault information together on the map information through a terminal.

Description

Technology Field

[0001] The present invention relates to a management system for underground power distribution cables, a method thereof, and a computer recording medium recording the same. More specifically, the present invention relates to a management system for underground power distribution cables that links fault information and diagnostic information, a method thereof, and a computer recording medium recording the same. Background Technology

[0002] Distribution cables account for a significant portion of power facilities in terms of both cost and scale. Due to their long operating lifespan, efficient maintenance is required. In particular, as the demand for undergrounding distribution cables continues to rise, the proportion of underground distribution cables is expected to increase significantly in the future.

[0003] Therefore, there is an increasing need for an efficient cable condition diagnosis method to determine whether to replace or repair existing underground power distribution cables. In particular, given the high investment cost of underground power distribution cables, predicting the remaining lifespan of the cables through diagnostic status is crucial for determining the appropriate replacement timing. Furthermore, since power outages caused by cable failures result in significant social losses, it is necessary to minimize social losses and equipment investment costs by accurately predicting cable failures and replacing cables at the appropriate time before a failure occurs. The problem to be solved

[0004] We intend to provide an underground power distribution cable fault diagnosis management system that links fault information and diagnostic information. Furthermore, we intend to provide an underground power distribution cable fault diagnosis management method that links fault information and diagnostic information. means of solving the problem

[0005] A method for managing an underground power distribution cable according to one embodiment of the present invention comprises: i) providing map information of a plurality of underground power distribution cables based on a geographic information system (GIS); ii) providing diagnostic information of one or more of the plurality of underground power distribution cables in correspondence with the map information; iii) providing fault information of one or more of the plurality of underground power distribution cables in correspondence with the map information; and iv) displaying the diagnostic information and the fault information together on the map information through a terminal.

[0006] In the step of providing map information, the map information is provided from the server, and in the step of providing diagnostic information for underground distribution cables, the diagnostic information for underground distribution cables is input or output through the terminal, and the input diagnostic information for underground distribution cables may be stored on the server. In the step of providing fault information for underground distribution cables, the fault information for underground distribution cables is input or output through the terminal, and the input fault information for underground distribution cables may be stored on the server. An authentication procedure through the terminal may be performed before the diagnostic information and fault information are stored on the server. If the diagnostic information and fault information are stored on the server after passing the authentication procedure, the real name of the person who passed the authentication procedure may be labeled on the diagnostic information and fault information.

[0007] In the step of providing diagnostic information for an underground power distribution cable, the diagnostic information may include one or more parameters selected from a group consisting of attributes of the power distribution cable, years elapsed since installation, diagnostic history, diagnostic results, and predicted time of failure. In the step of providing diagnostic information for an underground power distribution cable, the diagnostic information may include the start and end points of the power distribution cable by GPS.

[0008] In the step of providing fault information for an underground distribution cable, the fault information may include one or more parameters selected from a group consisting of the attributes of the distribution cable, years elapsed since installation, years elapsed since the occurrence of the fault, fault history, results of fault corrective actions, and fault prediction error. In the step of providing fault information for an underground distribution cable, the fault information may include the start and end points of the distribution cable by GPS. The fault information includes the attributes of the distribution cable and the years elapsed since the distribution cable, and in the step of providing map information, fault prediction information for a plurality of other underground distribution cables having the same attributes as the underground distribution cable for which the fault information is provided may be displayed on the terminal.

[0009] Fault prediction information includes a fault prediction period, and the fault prediction period may be provided as the number of years elapsed since the failure occurred minus the number of years elapsed since installation. The years are grouped into pre-set year intervals, and the year intervals may be provided as within 1 year, 1 to 5 years, or 5 to 10 years. Among each year interval, multiple underground distribution cables within the same year interval may be displayed in the same color. Different year intervals within each year interval may be displayed in different colors.

[0010] In the step of providing fault information for an underground distribution cable, the fault information includes fault location information, and the fault location information may include one or more parameters selected from a group consisting of fault location coordinates, fault type, fault action result, and fault history. In the step of displaying diagnostic information and fault information together, the map information, diagnostic information, and fault information may each be displayed as different layers.

[0011] In the step of displaying diagnostic information and fault information together, if a fault location of an underground distribution cable is set, the underground distribution cable containing the fault location may be selected so that the fault information of the underground distribution cable may be displayed. In the step of displaying diagnostic information and fault information together, if the distribution cable for which diagnostic information is provided matches the distribution cable for which fault information is provided, the diagnostic information and fault information may be displayed together on the terminal.

[0012] In the step of displaying diagnostic information and fault information together, the underground distribution cable containing diagnostic information and the underground distribution cable containing fault information can be indicated with lines of different colors, respectively. If the underground distribution cable contains both diagnostic information and fault information, lines of different colors can be displayed side by side on the underground distribution cable.

[0013] A computer recording medium according to one embodiment of the present invention may include the aforementioned method for managing an underground power distribution cable.

[0014] A management system for underground power distribution cables according to one embodiment of the present invention comprises: i) a server providing map information, diagnostic information, and fault information of a plurality of underground power distribution cables based on GIS; ii) a database unit connected to the server and providing power distribution system information to the server; and iii) a plurality of terminals connected to the server and displaying map information, diagnostic information, and fault information. The diagnostic information and fault information each correspond to the map information, and the diagnostic information or fault information is input from the plurality of terminals and stored in the server.

[0015] The terminal may provide an authentication procedure before storing diagnostic information or fault information on the server. Diagnostic information or fault information that has passed the authentication procedure may be stored on the server with the real name of the person who passed the authentication procedure labeled thereon. The diagnostic information provided by the server may include one or more parameters selected from a group consisting of attributes of the power distribution cable, years elapsed since installation, diagnostic history, diagnostic results, and the time of fault prediction. The fault information provided by the server may include one or more parameters selected from a group consisting of attributes of the power distribution cable, years elapsed since installation, years elapsed since the occurrence of the fault, fault history, results of fault corrective actions, and fault prediction error.

[0016] Fault information includes the attributes of the distribution cable and the elapsed years of the distribution cable, and one or more of the multiple terminals may display fault prediction information for multiple other underground distribution cables having the same attributes as the underground distribution cable for which fault information is provided. The fault prediction information includes a fault prediction period, and the fault prediction period is provided as the number of years elapsed by subtracting the installation elapsed years from the years elapsed since the fault occurred, and the years are grouped into pre-set year intervals, and the year intervals may be provided as within 1 year, 1 to 5 years, or 5 to 10 years. The terminal may display multiple other underground distribution cables within the same year interval in the same color. The terminal may display different year intervals within each year interval in different colors. The fault information provided by the server includes fault location information, and the fault location information may include one or more parameters selected from a group consisting of fault location coordinates, fault type, fault action result, and fault history.

[0017] One or more of the multiple terminals may display map information, diagnostic information, and fault information as distinct layers. The terminal may set and display the fault location of an underground distribution cable, and may display the fault information of the underground distribution cable when the underground distribution cable containing the fault location is selected. The terminal may display the diagnostic information and the fault information together when the distribution cable for which diagnostic information is provided matches the distribution cable for which fault information is provided. The terminal may display the underground distribution cable with diagnostic information and the underground distribution cable with fault information using lines of different colors, respectively. If the underground distribution cable contains both diagnostic information and fault information, the terminal may display lines of different colors side by side on the underground distribution cable. Effects of the invention

[0018] Since the management method for underground distribution cables is based on GIS, existing distribution cable history information stored on a server can be linked for faulty distribution cables. As a result, real-time fault analysis and error verification are possible through the analysis of past diagnostic data at the point of fault occurrence.

[0019] By additionally linking various underground distribution cable information, distribution cables located near the actual faulty cable and those with a high similarity in elapsed years can be selectively presented. By presenting fault prediction results that consider the cable burial environment and the impact of the power cable on the power load as a power facility, the management efficiency of underground distribution cables can be enhanced. In other words, when it is difficult to diagnose the condition of all buried distribution cables due to issues such as time and cost, the diagnosis results according to an embodiment of the present invention can be reflected under the assumption that the predicted fault lifespan of distribution cables with attributes similar to those of cables previously diagnosed as a sample in a specific area will be similar.

[0020] Furthermore, effective analysis data can be secured by integrating the management of diagnostic and fault cable data. This allows for the improvement of distribution cable diagnostic methods and enhanced maintenance efficiency, thereby reducing equipment investment costs for distribution cables. Additionally, since an integrated diagnostic and fault data management system can be implemented via terminals, the management of vast underground distribution cable facilities can be simplified. Consequently, advanced management manuals can also be provided. Brief explanation of the drawing

[0021] FIG. 1 is a schematic flowchart of a method for managing an underground power distribution cable according to one embodiment of the present invention. Figure 2 is a schematic diagram showing the terminal display structure of Figure 1. FIG. 3 is a schematic diagram of a management system for an underground power distribution cable according to one embodiment of the present invention. Figure 4 is a diagram schematically showing the input status of diagnostic information or fault information in Figure 3. FIGS. 5 to 7 are schematic examples of terminal display states. FIG. 8 is a schematic diagram of a computer recording medium for implementing the method of managing underground power distribution cables of FIG. 1. Specific details for implementing the invention

[0022] The technical terms used herein are for the reference of specific embodiments only and are not intended to limit the invention. The singular forms used herein include plural forms unless phrases clearly indicate otherwise. The meaning of "comprising" as used in the specification specifies a particular characteristic, area, integer, step, action, element, and / or component, and does not exclude the presence or addition of other particular characteristic, area, integer, step, action, element, component, and / or group.

[0023] Unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries are further interpreted to have meanings consistent with relevant technical literature and the present disclosure, and are not interpreted in an ideal or highly formal sense unless otherwise defined. For example, the term “applied” described below is interpreted to include both the state in which it is appropriately used and the state prior to appropriate use.

[0024] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings so that those skilled in the art can easily implement the present invention. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein.

[0025] FIG. 1 schematically illustrates a flowchart of a method for managing an underground power distribution cable according to an embodiment of the present invention. The underground power distribution cable diagnosis cycle learning method of FIG. 1 is merely for illustrating the present invention and is not limited thereto. Accordingly, the underground power distribution cable diagnosis cycle learning method can be modified differently.

[0026] As illustrated in FIG. 1, the method for learning the diagnosis cycle of an underground power distribution cable includes the steps of providing map information of a plurality of underground power distribution cables based on GIS (S10), providing diagnosis information of one or more of the plurality of underground power distribution cables corresponding to the map information (S20), providing fault information of one or more of the plurality of underground power distribution cables corresponding to the map information (S30), and displaying the diagnosis information and fault information together on the map information through a terminal (S40). In addition, the method for learning the diagnosis cycle of an underground power distribution cable may include other steps.

[0027] First, in step (S10), map information of multiple underground power distribution cables based on GIS is provided. The underground power distribution cables are provided as GIS-based map information. Underground power distribution cables can be efficiently managed by utilizing a power distribution network system implemented based on GIS.

[0028] In one embodiment of the present invention, the determination of whether a distribution cable to be diagnosed matches a distribution cable expected to fail in the future is made accurately. Furthermore, a GIS-based distribution system network is utilized through a terminal for efficient management of diagnostic data and failure data. In addition, the management efficiency of underground distribution cables can be significantly improved by designating and linking diagnostic information and failure information of underground distribution cables.

[0029] Map information is provided by constructing route diagrams, system diagrams, and underground distribution cables on a GIS map. For example, map information can be created at a scale of 1 / 5,000 of a national digital map. An index map is created using an index map, major road names are edited, and topographic maps corresponding to legal administrative district names are searched and created using an administrative district map search. Underground distribution cables can be labeled with line names and section numbers, and necessary colors can be applied.

[0030] In cases where consistency is based on text-based section or location information rather than GIS, consistency verification is possible based on information such as the distribution line name that can refer to the distribution cable, the starting and ending names that specify the location of the distribution cable section, and the fault location indicated by a point number and computerized number according to the numbering format, in order to extract each actual distribution cable. However, it is difficult to secure high-quality analysis data due to issues such as information omissions and format inconsistencies when text is written by operators, and the absence of consistent cables due to separate management systems. Furthermore, in the management of existing diagnostic and fault data, the measurement data collection system and the fault data management system were separated. Consequently, it was difficult to guarantee accurate consistency between diagnostic and fault data collected over a long period, and problems such as time delays occurred for searching for distribution cables. In contrast, one embodiment of the present invention manages underground distribution cables based on GIS, thereby resolving the aforementioned problems.

[0031] Next, in step (S20), diagnostic information for one or more underground distribution cables among a plurality of underground distribution cables is provided in correspondence with map information. The diagnostic information includes parameters such as attributes of the distribution cable, years elapsed since installation, diagnostic history, diagnostic results, or predicted time of failure. Here, attributes refer to the specifications of the distribution cable that are generally used, such as the manufacturing date, material, manufacturer, specifications, and standards of the distribution cable. Years elapsed refers to the period from the manufacturing date or burial date of the underground distribution cable to the present time. Since attributes and years elapsed among the parameters are included in all underground distribution cables, the failure information and diagnostic information of the underground distribution cables can be linked through these parameters. Meanwhile, the diagnostic information may include GPS (Global Positioning System) information of the distribution cable to be displayed on the GIS-based map information. That is, since GPS information is displayed in the form of points, it may include the starting and ending points of the distribution cable determined by GPS. In other words, the distribution cable can be displayed by including the starting and ending points of the distribution cable and connecting them.

[0032] In step (S30), fault information for one or more underground distribution cables among a plurality of underground distribution cables is provided in correspondence with map information. The fault information includes parameters such as attributes of the distribution cable, years since installation, years since the occurrence of the fault, fault history, results of fault corrective actions, or fault prediction error. Additionally, the fault information may include GPS information of the distribution cable to be displayed on GIS-based map information. That is, since the GPS information is displayed in the form of points, it may include the start and end points of the distribution cable by GPS. In other words, the start and end points of the distribution cable may be included and connected to display the distribution cable. The aforementioned fault prediction error may be linked to the diagnosis result included in the diagnosis information.

[0033] Meanwhile, fault information may include fault location information. Fault location information includes parameters such as fault location coordinates, fault type, fault action results, or fault history. By identifying this GIS-based fault location information, operators can manage underground power distribution cables more efficiently.

[0034] Finally, in step (S40), diagnostic information and fault information are displayed together on the map information via the terminal. That is, since diagnostic information and fault information regarding underground power distribution cables are displayed together on the GIS-based map information, the condition of underground power distribution cables, which is actually impossible to verify visually, can be identified at a glance. This is explained in more detail through Fig. 2.

[0035] FIG. 2 schematically illustrates the terminal display structure of step (S40) of FIG. 1, namely map information, diagnostic information, and fault information. The terminal display structure of FIG. 2 is merely for illustrating the present invention and is not limited thereto. Accordingly, the terminal display structure of FIG. 2 can be modified differently.

[0036] As illustrated in FIG. 2, for example, map information (10), diagnostic information (20), and fault information (30) can be displayed in different layer forms. That is, diagnostic information (20) and fault information (30) for a specific underground wiring cable, each stored in a separate category, can be placed together and viewed on top of the map information (10) for the underground wiring cable. The diagnostic information (20) displays the diagnosed cable section (201). The diagnosed cable section (201) is set by connecting the start point (201a) and end point (201b) set by GPS. The diagnosed cable section (201) includes the diagnostic information from the aforementioned step (S20). Meanwhile, the fault information (30) displays the fault cable section (301) containing the fault location (303). The fault cable section (301) is set by connecting the start point (301a) and end point (301b) set by GPS. The fault cable section (201) and the fault location (303) include the diagnostic information from the aforementioned step (S30). Since the detailed implementation method of such map information (10), diagnostic information (20), and fault information (30) can be easily understood by a person skilled in the art to which the present invention belongs, the detailed description thereof is omitted. Meanwhile, unlike FIG. 2, the map information, diagnostic information, and fault information may be displayed together on one layer, or the diagnostic information and fault information may be displayed together on top of the map information.

[0037] FIG. 3 schematically illustrates an underground power distribution cable management system (100) according to one embodiment of the present invention. The structure of the underground power distribution cable management system (100) of FIG. 3 is merely for illustrating the present invention and is not limited thereto. Accordingly, the underground power distribution cable management system (100) may be modified differently.

[0038] As illustrated in FIG. 3, the GIS-based underground power distribution cable management system (1000) includes a server (100), terminals (200), and a database unit (300). In addition, the underground power distribution cable management system (1000) may include other components.

[0039] The server (100) is provided with map information, diagnostic information, and fault information regarding multiple underground power distribution cables based on GIS. The database unit (300) is connected to the server (100). The database unit (300) stores a power distribution system information database and provides power distribution system information to the server (100). This power distribution system information is fused with other information to form GIS-based map information. Since the detailed implementation process of this GIS-based map information can be easily understood by a person with ordinary knowledge in the field to which the present invention belongs, a detailed description thereof is omitted.

[0040] Multiple terminals (200) are connected to a server (100). Multiple terminals (200) may be wirelessly connected to the server (100). Map information, diagnostic information, and fault information provided by the server (100) are displayed on the multiple terminals (200). The diagnostic information and fault information correspond to the map information provided by the server (100), respectively. Therefore, GIS-based map information, diagnostic information, and fault information can be viewed at a glance through the terminals (200), and the diagnostic information and fault information are input or output through the terminals (200). The terminals (200) are not limited to a specific device as long as they include a display. For example, the terminals (200) can be portable devices including a display, such as a laptop, smartphone, or tablet. Therefore, workers can input diagnostic information or fault information through the terminals (200) and store it in the server (100). This is explained in more detail through FIG. 4.

[0041] FIG. 4 schematically illustrates the input state of diagnostic information or fault information in FIG. 3. The input state of diagnostic information or fault information in FIG. 4 is merely for illustrating the present invention and is not limited thereto. Accordingly, the input state of diagnostic information or fault information may be modified differently.

[0042] As illustrated in FIG. 4, when diagnostic information and fault information from terminals (200) are stored in the server (100), authentication (200a) must be performed. That is, since the diagnostic information and fault information of underground power distribution cables are linked to map information stored in the server (100) and are databased and continuously used in the future, they must be entered accurately. Therefore, the worker's employee ID number is entered to verify whether the worker has completed GIS-related training in advance and is qualified to input diagnostic information and fault information. Only after passing this authentication procedure can the diagnostic information and fault information be stored in the server (100). When the diagnostic information and fault information are stored in the server after passing the authentication procedure, the real name of the worker who passed the authentication procedure is labeled on the diagnostic information and fault information. That is, the real name of the person who provided the information is recorded together with the stored diagnostic information and fault information, thereby increasing the reliability of the information.

[0043] FIGS. 5 to 7 schematically illustrate terminal display states as examples. FIGS. 5 to 7 are merely for illustrating the present invention and are not limited thereto. Accordingly, terminal display states may be modified differently.

[0044] Figure 5 illustrates a basic terminal display state. As shown in Figure 5, diagnostic information and fault information are displayed together on map information where underground distribution cables are installed based on GIS. For example, sections where underground distribution cables are configured are displayed in blue, sections where diagnosed underground distribution cables are configured are displayed in green, and sections where faulty distribution cables are configured are displayed in red. Since the faulty distribution cable section indicates the fault location, i.e., the point where the fault occurred, it can be displayed together with a black circle. When a fault point is configured in this way, the underground distribution cable containing the fault point is selected, and the fault information of the underground distribution cable can be displayed. In addition, if it is an underground distribution cable that has been previously diagnosed, its diagnostic information is also displayed.

[0045] When a fault location is specified via the terminal's display using GIS-based distribution network information, cables in section units managed based on diagnostic data acquisition criteria can be retrieved and displayed. When a fault is indicated by specifying a distribution cable fault location, it is automatically linked with past diagnostic information, allowing data such as the time and cause of the fault to be stored in an integrated manner. Diagnostic and fault information are collected and operated as a single data management system so that they can be managed integrally within the server transmitted via the terminal.

[0046] Therefore, the operator can identify the location information of the underground power distribution cable along with the diagnostic information and fault information in conjunction, thereby increasing the convenience of the work. Meanwhile, although not shown in FIG. 5, the underground power distribution cable containing both diagnostic information and fault information can be displayed side by side with lines of different colors on the underground power distribution cable.

[0047] FIG. 6 schematically illustrates the state in which diagnostic information details and fault information details are displayed in FIG. 5. As shown in FIG. 6, when an underground power distribution cable marked as containing diagnostic information or fault information is touched, balloon-shaped diagnostic information or fault information is displayed.

[0048] Figure 7 illustrates an example of a state in which fault prediction information for multiple other underground power distribution cables having the same attributes as the underground power distribution cable for which fault information was provided is displayed on a terminal. That is, when fault information for an underground power distribution cable is received, underground power distribution cables having the same attributes are highly likely to experience the same fault in the future. Therefore, this can be displayed on a terminal so that an operator can perform a preventive diagnosis.

[0049] The failure prediction information includes a failure prediction period, and the failure prediction period is provided by the following mathematical formula 1.

[0050] [Mathematical Formula 1]

[0051] Predicted failure period = Years since failure - Years since installation

[0052] In other words, the failure prediction period is the number of years elapsed since the failure occurred minus the years elapsed since installation. The years elapsed since the failure occurred refer to the period from the date of manufacture or burial of the underground distribution cable until the time the failure occurred. Additionally, the years elapsed since installation refer to the period from the date of manufacture or burial of the underground distribution cable until the present. Therefore, the failure prediction period can be calculated by subtracting the years elapsed since installation from the years elapsed since the failure occurred.

[0053] The aforementioned years can be grouped into pre-set year intervals. The year intervals can be provided as within 1 year, 1 to 5 years, or 5 to 10 years. Among these year intervals, multiple underground distribution cables within the same year interval may be marked with the same color.

[0054] That is, as shown in Fig. 7, for underground wiring cables, a failure prediction period of within one year can be indicated in yellow, a failure prediction period of one to five years in green, and a failure prediction period of five to ten years in blue. Therefore, the operator can perform a preliminary diagnosis of the underground wiring cable based on GIS in the order of yellow, green, and blue, thereby allowing the work to proceed efficiently.

[0055] FIG. 8 schematically illustrates the structure of a computer recording medium (50) for implementing the method of managing an underground power distribution cable of FIG. 1. The structure of the computer recording medium (50) of FIG. 8 is merely for illustrating the present invention and is not limited thereto. Accordingly, the structure of the computer recording medium (50) can be modified differently.

[0056] A computer system for implementing a method for managing underground power distribution cables includes one or more processors (510) which are computer recording media in which a program for implementing the management method is stored, one or more memories (530), one or more storage (520), and one or more communication interfaces (540). These may be connected to each other via a bus. In addition, the data flow system may include hardware such as input devices and output devices. Furthermore, the data flow system may be equipped with various software, including an operating system capable of running the program.

[0057] The processor (510) controls the operation of the data flow system. The processor may be a various type of processor that processes instructions included in the program. For example, the processor may be a CPU (Central Processing Unit), MPU (Micro Processor Unit), MCU (Micro Controller Unit), GPU (Graphic Processing Unit), etc. The memory (530) loads the program so that instructions described to execute the underground power distribution cable diagnosis cycle calculation method according to one embodiment are processed by the processor. For example, the memory may be a ROM (read-only memory), RAM (random access memory), etc. The storage (520) stores various data, programs, etc. required to execute the operation according to one embodiment of the present invention. The communication interface (540) is a wired / wireless communication module and can be linked with an external database through a wired / wireless network.

[0058] Although the present invention has been described as previously stated, those skilled in the art will readily understand that various modifications and variations are possible without departing from the concept and scope of the claims set forth below. Explanation of the symbols

[0059] 10. Map Information 20. Diagnostic Information 30. Fault Information 50. Computer recording media 100. Server 200. Terminals 200a. Certification 201. Diagnosed cable section 201a, 301a. Point in time 201b, 301b. Terminal 300. Database Department 301. Faulty cable section 303. Location of failure 510. Process 520. Memory 530. Storage 540. Communication Interface

Claims

Claim 1 The method comprises the steps of: providing map information of a plurality of underground power distribution cables based on a Geographic Information System (GIS); providing diagnostic information of one or more of the plurality of underground power distribution cables corresponding to the map information; providing fault information of one or more of the plurality of underground power distribution cables corresponding to the map information; and displaying the diagnostic information and the fault information together on the map information through a terminal. In the step of providing the map information, the map information is provided from a server. In the step of providing the diagnostic information of the underground power distribution cable, the diagnostic information of the underground power distribution cable is input or output through the terminal. The input diagnostic information of the underground power distribution cable undergoes an authentication procedure through the terminal, and the real name of the person who passed the authentication procedure is labeled and stored in the server. In the step of providing the fault information of the underground power distribution cable, the fault information of the underground power distribution cable is input or output through the terminal. The input fault information of the underground power distribution cable undergoes an authentication procedure through the terminal, and the real name of the person who passed the authentication procedure is labeled and stored in the server. Management method for power distribution cables. Claim 2 delete Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 A method for managing an underground power distribution cable according to claim 1, wherein, in the step of providing diagnostic information of the underground power distribution cable, the diagnostic information comprises one or more parameters selected from the group consisting of attributes of the power distribution cable, years elapsed since installation, diagnostic history, diagnostic results, and fault prediction time. Claim 7 A method for managing an underground power distribution cable according to claim 1, wherein the step of providing diagnostic information of the underground power distribution cable includes the starting and ending points of the power distribution cable by GPS. Claim 8 A method for managing an underground power distribution cable according to claim 1, wherein the step of providing fault information of the underground power distribution cable comprises, wherein the fault information includes one or more parameters selected from the group consisting of attributes of the power distribution cable, years elapsed since installation, years elapsed since the occurrence of a fault, fault history, results of fault action, and fault prediction error. Claim 9 In claim 8, a method for managing an underground power distribution cable, wherein the fault information provided in the step of providing fault information of the underground power distribution cable includes the starting and ending points of the power distribution cable by GPS. Claim 10 A method for managing an underground distribution cable according to claim 9, wherein the fault information includes the attributes of the distribution cable and the elapsed years of the distribution cable, and in the step of providing the map information, the fault prediction information of a plurality of other underground distribution cables having the same attributes as the attributes of the underground distribution cable for which the fault information is provided is displayed at the terminal. Claim 11 A method for managing an underground power distribution cable according to claim 10, wherein the fault prediction information includes a fault prediction period, and the fault prediction period is provided as the number of years by subtracting the installation elapsed years from the years elapsed since the fault occurred. Claim 12 A method for managing underground power distribution cables according to claim 11, wherein the above-mentioned years are grouped into pre-set year intervals, and the above-mentioned year intervals are provided as any one of within 1 year, 1 year to 5 years, and 5 years to 10 years. Claim 13 In paragraph 12, a method for managing underground power distribution cables in which the other multiple underground power distribution cables in the same year section among the above year sections are marked with the same color. Claim 14 In paragraph 12, a method for managing underground power distribution cables in which different year sections among the above-mentioned year sections are each marked in a different color. Claim 15 A method for managing an underground power distribution cable according to claim 1, wherein, in the step of providing fault information of the underground power distribution cable, the fault information includes fault location information, and the fault location information includes one or more parameters selected from a group consisting of fault location coordinates, fault type, fault action result, and fault history. Claim 16 A method for managing an underground power distribution cable according to claim 1, wherein, in the step of displaying the diagnostic information and the fault information together, the map information, the diagnostic information, and the fault information are each displayed in different layers. Claim 17 A method for managing an underground distribution cable according to claim 1, wherein, in the step of displaying the diagnostic information and the fault information together, when a fault point of the underground distribution cable is set, an underground distribution cable including the fault point is selected and the fault information of the underground distribution cable is displayed. Claim 18 In claim 1, the step of displaying the diagnostic information and the fault information together is a method for managing an underground power distribution cable in which the diagnostic information provided on the power distribution cable and the fault information provided on the power distribution cable match each other, and the diagnostic information and the fault information are displayed together on the terminal. Claim 19 A method for managing underground power distribution cables according to claim 1, wherein, in the step of displaying the diagnostic information and the fault information together, the underground power distribution cable having the diagnostic information and the underground power distribution cable having the fault information are each marked with lines of different colors. Claim 20 In claim 19, a method for managing an underground power distribution cable in which lines of different colors are displayed side by side on the underground power distribution cable when the underground power distribution cable includes both the diagnostic information and the fault information. Claim 21 A non-transitory computer recording medium comprising a method for managing underground power distribution cables according to any one of paragraphs 1, 6 through 15. Claim 22 A management system for underground power distribution cables comprising: a server providing map information, diagnostic information, and fault information of multiple underground power distribution cables based on a geographic information system (GIS); a database unit connected to the server and providing power distribution system information to the server; and multiple terminals connected to the server and displaying the map information, diagnostic information, and fault information, wherein the diagnostic information and the fault information each correspond to the map information, and the multiple terminals input the diagnostic information or the fault information and provide an authentication procedure, and the real name of the person who passed the authentication procedure is labeled and stored in the server. Claim 23 delete Claim 24 delete Claim 25 In paragraph 22, the diagnostic information provided by the server comprises one or more parameters selected from the group consisting of the attributes of the distribution cable, years elapsed since installation, diagnostic history, diagnostic results, and failure prediction time, in a management system for underground distribution cables. Claim 26 In paragraph 22, the fault information provided by the server comprises one or more parameters selected from the group consisting of attributes of the power distribution cable, years elapsed since installation, years elapsed since failure, failure history, results of failure action, and failure prediction error, in a management system for underground power distribution cables. Claim 27 In paragraph 26, the fault information includes the attributes of the distribution cable and the elapsed years of the distribution cable, and one or more of the plurality of terminals displays fault prediction information for another plurality of underground distribution cables having the same attributes as the attributes of the underground distribution cable for which the fault information is provided. Claim 28 A management system for underground power distribution cables according to claim 27, wherein the fault prediction information includes a fault prediction period, the fault prediction period is provided as a number of years by subtracting the installation elapsed years from the years elapsed since the fault occurred, the number of years is grouped into preset year intervals, and the year interval is provided as any one of within 1 year, 1 year to 5 years, and 5 years to 10 years. Claim 29 In paragraph 28, the above terminal is a management system for underground power distribution cables that displays the other plurality of underground power distribution cables in the same year section among each year section in the same color. Claim 30 In paragraph 28, the terminal is a management system for underground power distribution cables that displays different year sections among the above year sections in different colors. Claim 31 A management system for underground power distribution cables according to claim 22, wherein the fault information provided by the server includes fault location information, and the fault location information includes one or more parameters selected from a group consisting of fault location coordinates, fault type, fault action result, and fault history. Claim 32 In paragraph 22, a management system for an underground power distribution cable in which one or more of the plurality of terminals each display the map information, the diagnostic information, and the fault information as different layers. Claim 33 In paragraph 22, the above terminal sets and displays a fault location of the underground distribution cable, and when an underground distribution cable including the fault location is selected, the underground distribution cable management system displays the fault information of the underground distribution cable. Claim 34 In paragraph 22, the terminal is a management system for underground power distribution cables that displays the diagnostic information and the fault information together when the power distribution cable to which the diagnostic information is provided and the power distribution cable to which the fault information is provided match each other. Claim 35 In paragraph 22, the terminal is a management system for underground power distribution cables that displays the underground power distribution cable with the diagnostic information and the underground power distribution cable with the fault information, respectively, with lines of different colors. Claim 36 In paragraph 22, the terminal is a management system for an underground power distribution cable that displays lines of different colors side by side on the underground power distribution cable when the underground power distribution cable includes both the diagnostic information and the fault information.

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