Equipment replacement plan creation device, equipment replacement plan creation system, equipment replacement plan creation method, and program

Abstract

To reduce a calculation amount by using intermediate data in creating an equipment replacement plan.SOLUTION: According to an aspect of this disclosure, an equipment replacement plan creation device includes: an information acquisition unit for acquiring plan creation condition information indicating a plan creation condition including index information indicating an index representing an equipment replacement priority and a parameter value for calculating the index; an execution order determination unit for determining an execution order of a plurality of plan creation conditions on the basis of variable information that changes among the plurality of plan creation conditions included in the plan creation condition information acquired by the information acquisition unit; an intermediate data acquisition unit for acquiring intermediate data to be used to create an equipment replacement plan on the basis of the index and the parameter value included in the plurality of plan creation conditions; and a plan creation unit for creating the equipment replacement plan by using the intermediate data acquired by the intermediate data acquisition unit in the order of the plan creation condition determined by the execution order determination unit.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to an equipment replacement plan creating device, an equipment replacement plan creating system, an equipment replacement plan creating method, and a program. [Background technology]

[0002] Conventionally, a known technique for creating a plan to replace equipment is, for example, the technique described in Patent Document 1 below. The equipment maintenance management work support system described in Patent Document 1 includes various databases such as equipment information, inspection and maintenance information, health evaluation information, deterioration diagnosis information, and risk evaluation information, and performs risk evaluation by predicting deterioration diagnosis based on the failure occurrence probability or health. The equipment maintenance management work support system determines replacement priority based on the level of risk to equipment under budget constraints, and creates an equipment replacement plan by extracting equipment to be replaced each fiscal year and determining equipment to be replaced in the following fiscal year and thereafter.

[0003] Creating a plan for replacing equipment requires handling large amounts of data, which can result in a huge amount of calculation. A known technology for reducing the amount of calculation is described in Patent Document 2. The data analysis system described in Patent Document 2 accumulates intermediate calculation results and final results obtained by data analysis processing under specific conditions as intermediate data, and utilizes the intermediate data when performing data analysis processing under similar conditions next time, thereby reducing the amount of calculation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2014-016691 A [Patent Document 2] JP 2011-002911 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the facility maintenance management support system described in Patent Document 1 does not use intermediate data when creating a facility replacement plan, which may result in a huge amount of calculation and a long calculation time. Also, even if an attempt is made to apply the technology of Patent Document 2 that utilizes the intermediate data to create the facility replacement plan of Patent Document 1, the intermediate data cannot be utilized unless the plan creation conditions for the calculation target completely match the past plan creation conditions.

[0006] The present disclosure has been made in consideration of the above circumstances, and aims to provide an equipment replacement plan creation device, an equipment replacement plan creation system, an equipment replacement plan creation method, and a program that can reduce the amount of calculations by using intermediate data when creating an equipment replacement plan. [Means for solving the problem]

[0007] The present disclosure has been made to solve the above-mentioned problems, and one aspect of the present disclosure is an equipment replacement plan creation device including: an information acquisition unit that acquires index information indicating an index representing an equipment replacement priority level and planning creation condition information indicating planning conditions including a parameter value for calculating the index; an execution order determination unit that determines an execution order of the multiple planning conditions based on variable information that changes among the multiple planning conditions included in the planning condition information acquired by the information acquisition unit; an intermediate data acquisition unit that acquires intermediate data used to create a replacement plan for the equipment based on the index and the parameter value included in the multiple planning conditions; and a plan creation unit that creates a replacement plan for the equipment using the intermediate data acquired by the intermediate data acquisition unit in the order of the planning conditions determined by the execution order determination unit.

[0008] Another aspect of the present disclosure is an equipment replacement plan creation system including: an information acquisition unit that acquires index information indicating an index representing a replacement priority of equipment and planning condition information indicating planning conditions including a parameter value for calculating the index; an execution order determination unit that determines an execution order of a plurality of planning conditions based on variable information that changes among a plurality of planning conditions included in the planning condition information acquired by the information acquisition unit; an intermediate data acquisition unit that acquires intermediate data used to create a replacement plan for the equipment based on the index and the parameter value included in the plurality of planning conditions; and a plan creation unit that creates a replacement plan for the equipment using the intermediate data acquired by the intermediate data acquisition unit in the order of the planning conditions determined by the execution order determination unit.

[0009] Another aspect of the present disclosure is an equipment replacement plan creation method including the steps of: an information acquisition unit acquiring index information indicating an index representing equipment replacement priority and planning condition information indicating planning conditions including parameter values ​​for calculating the index; an execution order determination unit determining an execution order of the multiple planning conditions based on variable information changing among multiple planning conditions included in the acquired planning condition information; an intermediate data acquisition unit acquiring intermediate data used to create a replacement plan for the equipment based on the index and the parameter values ​​included in the multiple planning conditions; and a plan creation unit creating a replacement plan for the equipment using the acquired intermediate data in the order of the determined planning conditions.

[0010] Another aspect of the present disclosure is a method for obtaining, in a computer, plan creation condition information indicating plan creation conditions including index information indicating an index representing a replacement priority of equipment and a parameter value for calculating the index; The program executes the steps of: determining an execution order of multiple planning conditions based on variable information that changes among the multiple planning conditions included in the acquired planning condition information; acquiring intermediate data to be used for creating a replacement plan for the equipment based on the indicators and parameter values ​​included in the multiple planning conditions; and creating a replacement plan for the equipment using the acquired intermediate data in the determined order of the planning conditions. Effect of the Invention

[0011] According to one aspect of the present invention, the amount of calculation can be reduced by using intermediate data when creating an equipment replacement plan. [Brief description of the drawings]

[0012] [Figure 1] 1 is a block diagram showing an example of a facility replacement plan creation system according to an embodiment. [Diagram 2] FIG. 2 is a diagram for explaining an outline of a plan creation process by the facility replacement plan creation system according to the embodiment. [Diagram 3] 1A and 1B are diagrams for explaining the process of creating equipment replacement plan information in an embodiment, in which (A) is a diagram showing the total risk for each year, and (B) is a diagram showing the total risk when the total risk for each year is set to an upper limit value or less. [Figure 4] FIG. 13 is a diagram for explaining an example of processing for making the total risk for each year equal to or less than an upper limit value in an embodiment. [Diagram 5] FIG. 4 is a diagram showing a list of schedule creation rules according to the embodiment. [Figure 6] FIG. 4 is a diagram showing an example of a list of plan creation conditions according to the embodiment. [Figure 7] 11A to 11C are diagrams illustrating intermediate data and an example of calculation using the intermediate data in the embodiment. [Figure 8] FIG. 11 is a diagram showing another example of the list of plan creation conditions in the embodiment. [Figure 9]11A to 11C are diagrams illustrating intermediate data and an example of calculation using the intermediate data in the embodiment. [Figure 10] 11 is a flowchart showing an example of a processing procedure for a facility replacement plan creation process by the facility replacement plan creation system according to the embodiment. [Figure 11] FIG. 2 is a diagram showing an example of raw data in the embodiment. [Figure 12] FIG. 11 is a diagram illustrating an example of plan creation process definition information according to an embodiment. [Figure 13] FIG. 13 is a diagram illustrating an example of a function call formula for calculating an index in the embodiment. [Figure 14] FIG. 11 is a diagram illustrating an example of a rule for determining whether an index increases or decreases monotonically in the embodiment. [Figure 15] FIG. 4 is a diagram illustrating an example of a schedule creation rule according to the embodiment. [Figure 16] 11 is a flowchart showing an example of a process for creating a replacement plan using plan creation rules according to an embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0013] Hereinafter, an equipment replacement plan creating device, an equipment replacement plan creating system, an equipment replacement plan creating method, and a program to which the present invention is applied will be described with reference to the drawings.

[0014] FIG. 1 is a block diagram showing an example of a facility replacement plan creating system 1 according to the embodiment. The equipment replacement plan creation system 1 includes, for example, an equipment replacement plan creation device 100, a user terminal device 200, a power transmission and distribution equipment 300, and a business operator device 400. The equipment replacement plan creation device 100, the user terminal device 200, the power transmission and distribution equipment 300, and the business operator device 400 each have a communication interface (not shown) such as a network interface card (NIC) or a wireless communication module for connecting to a communication network NW such as the Internet. The network may include, for example, a general-purpose network such as the Internet, and a private network such as local 5G or WiFi (registered trademark).

[0015] The power transmission and distribution equipment 300 is equipment for transmitting and distributing electric power, such as transformers, steel towers, and utility poles. Elementary data related to the power transmission and distribution equipment 300 is transmitted from the power transmission and distribution equipment 300 to the equipment replacement plan creation device 100. The elementary data is, for example, equipment data that represents the configuration and state of equipment, such as equipment specification data and inspection record data of equipment included in the power transmission and distribution equipment 300. The elementary data is, for example, acquired by equipment called IEDs (Intelligent Electronic Devices) installed at various locations in the power transmission and distribution equipment 300, transmitted from multiple IEDs to a parent device, and transmitted from the parent device to the equipment replacement plan creation device 100.

[0016] The user terminal device 200 is an information processing device operated by a user related to the power transmission and distribution facility 300. The user terminal device 200 is, for example, a computer device such as a personal computer, a mobile phone such as a smartphone, a tablet terminal, or a PDA (Personal Digital Assistant). The user in the embodiment is, for example, an operator belonging to a business entity that replaces equipment in the power transmission and distribution facility 300. The user terminal device 200 generates plan creation condition information based on the user's operation, transmits it to the information acquisition unit 110, and displays the equipment replacement plan created by the plan creation unit 140.

[0017] The equipment replacement plan creation device 100 is an information processing device that communicates via a communication network NW and performs various processes. The equipment replacement plan creation device 100 includes, for example, an information acquisition unit 110, an execution order determination unit 120, an intermediate data acquisition unit 130, and a plan creation unit 140. The information acquisition unit 110, the execution order determination unit 120, the intermediate data acquisition unit 130, and the plan creation unit 140 are realized by a processor such as a CPU (Central Processing Unit) executing a program stored in a program memory.

[0018] The information acquisition unit 110 acquires planning condition information indicating planning conditions including index information and parameter values. The index information indicates an index indicating the replacement priority of equipment. The parameter value is a value for calculating the index. The planning condition information includes a plurality of planning conditions.

[0019] The execution order determination unit 120 determines the execution order of the multiple planning conditions based on variable information that changes among the multiple planning conditions included in the planning condition information acquired by the information acquisition unit 110. The variable information is an index or parameter value that is different between a certain planning condition and another planning condition, among the indexes and parameter values ​​included in the planning conditions.

[0020] The intermediate data acquisition unit 130 acquires intermediate data used to create an equipment replacement plan based on indexes and parameter values ​​included in multiple plan creation conditions. The intermediate data is data generated in a previously executed equipment replacement plan creation process. For example, the intermediate data is data generated when equipment replacement plan information for a certain plan creation condition is created, and can be used to create equipment replacement plan information for another plan creation condition.

[0021] The plan creation unit 140 creates an equipment replacement plan using the intermediate data acquired by the intermediate data acquisition unit 130 in the order of the plan creation conditions determined by the execution order determination unit 120. The plan creation unit 140 transmits equipment replacement plan information indicating the created replacement plan to the user terminal device 200.

[0022] The equipment replacement plan creation device 100 includes a storage unit 150 that stores various information for creating an equipment replacement plan. The storage unit 150 is realized by, for example, a hard disk drive (HDD), a solid state drive (SSD), a flash memory, an electrically erasable programmable read only memory (EEPROM), a read only memory (ROM), or a random access memory (RAM), or a storage device using a plurality of these. The storage unit 150 stores various programs such as firmware and application programs, processing results by various functional units, and the like. Note that a part or the whole of the storage unit may be realized by an external storage device that the equipment replacement plan creation device 100 can access via various networks. An example of an external storage device is a network attached storage (NAS) device.

[0023] The storage unit 150 stores raw data 152, plan creation process definition information 154, plan creation rule list information 156, and intermediate data 158. The raw data 152 is data related to the power transmission and distribution equipment 300. The plan creation process definition information 154 is information that represents the risk for each year for each piece of equipment included in the power transmission and distribution equipment 300, how to calculate the index, and how to select equipment to be replaced each year. The plan creation rule list information 156 is information that represents a list of rules for creating an equipment replacement plan.

[0024] The business operator device 400 is a terminal device of the business operator related to the facility replacement plan creation device 100. The business operator device 400 transmits the plan creation process definition information 154 and the plan creation rule list information 156 to the facility replacement plan creation device 100 via the communication network NW by accepting an operation by a person belonging to the business operator.

[0025] FIG. 2 is a diagram for explaining an outline of a plan creation process by the facility replacement plan creation system 1 in the embodiment. The information acquisition unit 110 acquires raw data from the power transmission and distribution facility 300, and acquires plan creation condition information including a list of plan creation conditions from the user terminal device 200. In the list of plan creation conditions, parameter values ​​such as a coefficient to be multiplied by the life span after replacement and the reliability degree of part X are set for plan creation condition 1 and plan creation condition 2, the risk reduction amount is set as an index, and the upper limit of the total risk for each year is set to the total risk for 2022.

[0026] The equipment replacement plan creation device 100 determines an execution order of a plurality of plan creation conditions based on variable information that changes between the plurality of plan creation conditions 1 and 2 by the execution order determination unit 120, acquires intermediate data used to create an equipment replacement plan based on the indexes and parameter values ​​included in the plurality of plan creation conditions 1 and 2 by the intermediate data acquisition unit 130, and creates an equipment replacement plan using the indexes and intermediate data included in the plan creation conditions in the order of the plan creation conditions determined by the execution order determination unit 120 by the plan creation unit 140. In this way, the equipment replacement plan creation device 100 can create an equipment replacement plan corresponding to the plan creation condition 1 and an equipment replacement plan corresponding to the plan creation condition 2, and transmit equipment replacement plan information including the plurality of equipment replacement plans to the user terminal device 200. The equipment replacement plan information is information that indicates a correspondence relationship between equipment included in the power transmission and distribution equipment 300 and the presence or absence of replacement in each year for each plan creation condition.

[0027] In the embodiment, the function of acquiring raw data of the power transmission and distribution equipment 300, the function of generating plan creation conditions, the information acquisition unit 110, the execution order determination unit 120, the intermediate data acquisition unit 130, the plan creation unit 140, the memory unit 150, and the function of making the user aware of the equipment replacement plan are distributed among the equipment replacement plan creation device 100, the user terminal device 200, and the power transmission and distribution equipment 300 as described above, but are not limited to this and may be consolidated into one information processing device or distributed among multiple information processing devices of a form different from that shown in FIG. 1.

[0028] FIG. 3 is a diagram illustrating the process of creating equipment replacement plan information in an embodiment, in which (A) is a diagram showing the total risk for each year, and (B) is a diagram showing the total risk when the total risk for each year is set to less than or equal to an upper limit. The plan creation unit 140 first calculates the risk for each year. The risk is the expected value of the cost incurred due to equipment failure. For example, the risk increases as the equipment deteriorates with age. Next, the plan creation unit 140 creates an equipment replacement plan so that the total risk for each year is equal to or less than the upper limit value for a certain period of time. For example, when the total risk in 2121 exceeds the upper limit value as shown in FIG. 3(A), the plan creation unit 140 creates an equipment replacement plan so that the total risk in 2121 is equal to or less than the upper limit value as shown in FIG. 3(B). The upper limit value is the total risk in 2022, but is not limited to this and may be another value.

[0029] FIG. 4 is a diagram for explaining an example of the process of making the total risk for each year equal to or less than the upper limit value in the embodiment. If the total risk in 2121 exceeds the upper limit, the plan creation unit 140 calculates the index of each piece of equipment in 2023. The index of each piece of equipment is, for example, the amount of risk reduction. Next, the plan creation unit 140 sorts the calculated index of each piece of equipment in descending order. Next, the plan creation unit 140 extracts, in descending order of index, one or more pieces of equipment (2) and (3) that achieve the target amount of risk reduction. This allows the plan creation unit 140 to create an equipment replacement plan to replace the equipment (2) and (3) in 2023 so that the total risk in 2021 is equal to or less than the upper limit.

[0030] FIG. 5 is a diagram showing a list of schedule creation rules according to the embodiment. The execution order determination unit 120, the intermediate data acquisition unit 130, and the plan creation unit 140 perform processing according to the list of plan creation rules. The list of planning rules includes planning rule 1 and planning rule 2. Planning rule 1 defines that the variable information of the planning conditions is one type of parameter value, the execution order is the order in which the index decreases, the intermediate data is the index of each year and each piece of equipment calculated under the previous planning conditions and the order when the list of indexes is sorted in descending order, and the planning process extracts equipment to be replaced each year by extracting equipment with the highest index size and omits the calculation of indexes for lower-ranked equipment. Planning rule 2 defines that the variable information of the planning conditions is the type of index, the execution order is the order in which indexes calculated under specific planning conditions can be used to calculate the next planning conditions, the intermediate data is a list of indexes for each year and each piece of equipment calculated under the previous planning conditions, and the planning process calculates indexes for new planning conditions using the indexes calculated under the previous planning conditions.

[0031] Fig. 6 is a diagram showing an example of a list of plan creation conditions in the embodiment. Fig. 7 is a diagram showing intermediate data and a calculation example using the intermediate data in the embodiment. The planning condition 1 includes a life reduction coefficient of 0.2 as a parameter value, and the planning condition 2 includes a life reduction coefficient of 0.1 as a parameter value. In this case, the variable information is the parameter value, and the index included in the planning condition acquired by the information acquisition unit 110 monotonically decreases with respect to the change in the parameter value. The execution order determination unit 120 determines to execute the multiple planning conditions 1 and 2 in the order in which the index monotonically decreases (planning condition 1 → planning condition 2). The intermediate data acquisition unit 130 acquires, as intermediate data, a list of equipment (FIG. 7(a)) in which the index is sorted in descending order for each period in which the equipment is replaced. The planning unit 140 extracts equipment to be replaced in the order of the planning conditions determined by the execution order determination unit 120, in the order of the equipment with the largest index (A1, A2, ...) from the list of equipment. The plan creation unit 140 recalculates the index of equipment A1 using the parameter values ​​of plan creation condition 1, calculates the index (850) of equipment A1 shown in Fig. 7(b), and calculates the index of equipment A2, which has an index (900) greater than the calculated index of equipment A1. Because the calculated index (860) of equipment A2 is greater than the index of equipment A1, the plan creation unit 140 can select equipment A1 and equipment A2 as the two pieces of equipment to be replaced shown in Fig. 4, and terminate the process of creating the equipment replacement plan. This allows the plan creation unit 140 to omit calculations for equipment with lower indices in the equipment list.

[0032] This kind of equipment replacement plan creation process focuses on the fact that the variable information in the list of plan creation conditions is often the value of a specific parameter, that the index often monotonically decreases or increases with respect to the parameter, and that the amount of equipment to be replaced each year is small. When the list of plan creation conditions shown in Figure 6 is obtained, the risk reduction amount (index) decreases as the life reduction coefficient (parameter value) multiplied by the design life of the equipment after replacement increases. According to this kind of equipment replacement plan creation process, the amount of calculation can be reduced by using intermediate data, and further, the number of pieces of equipment for which indexes are calculated can be reduced.

[0033] Fig. 8 is a diagram showing another example of a list of plan creation conditions in the embodiment. Fig. 9 is a diagram showing intermediate data and a calculation example using the intermediate data in the embodiment. The planning condition 1 includes a failure probability as an index, and the planning condition 2 includes a health score as an index, and the failure probability is calculated using the health score. In this case, the variable information is the type of index, and the second index (failure probability) included in the second planning condition (planning condition 1) is calculated using the first index (health score) included in the first planning condition (planning condition 2) among the multiple planning conditions. The execution order determination unit 120 determines that the multiple planning conditions 1 and 2 are executed in the order of the first planning condition (planning condition 2) and the second planning condition (planning condition 1). The intermediate data acquisition unit 130 acquires the first index (health score) calculated using the period for replacing the equipment and the first planning condition for each equipment as intermediate data. The plan creation unit 140 calculates a second index (failure probability, FIG. 9(b)) using a first index (health score, FIG. 9(a)) as intermediate data, and extracts equipment A1 and equipment A2 as equipment to be replaced based on the first index and the second index.

[0034] This kind of facility replacement planning process focuses on the fact that variable information in the list of planning conditions is often a type of index, and that a relationship is often established in which one index can be used to calculate another index. According to this kind of facility replacement planning process, the amount of calculation can be reduced by using intermediate data.

[0035] FIG. 10 is a flowchart showing an example of a processing procedure of the facility replacement plan creating process by the facility replacement plan creating system 1 according to the embodiment. First, the information acquisition unit 110 registers the raw data 152 of the power transmission and distribution equipment 300 (step S100). The information acquisition unit 110, for example, periodically acquires the raw data 152 from the power transmission and distribution equipment 300 and stores it in the storage unit 150. FIG. 11 is a diagram showing an example of raw data in the embodiment. The raw data includes the equipment name, expected life, voltage class, availability rate, distance from the coast, and inspection item results. The raw data is not limited to the example shown in FIG. 11, and may be any value that allows a risk to be calculated.

[0036] Next, the information acquisition unit 110 registers the plan creation process definition information 154 (step S102). Fig. 12 is a diagram showing an example of plan creation process definition information in the embodiment. The plan creation condition information includes, for example, a risk derivation function r1 of equipment, an index derivation function i1 of equipment, and a derivation function a1 of a list of equipment to be replaced. Note that T in Fig. 12 indicates a period.

[0037] 13 is a diagram showing an example of a call formula for a function that calculates an index in the embodiment. The call formula for the index calculation function is included in the plan creation process definition information. The call formula for the index calculation function is, for example, a derivative function for a risk reduction amount, a derivative function for a risk immediately after replacement, a derivative function for a risk before replacement, a derivative function for a failure probability, a derivative function for a health score, or a derivative function for a failure impact degree, but is not limited thereto, and may be any formula for calculating an index included in the plan creation conditions.

[0038] Fig. 14 is a diagram showing an example of a rule for determining whether an index increases or decreases monotonically in an embodiment. The rule for determining whether an index increases or decreases monotonically is included in the planning process definition information. The execution order determination unit 120 refers to the rule for determining whether an index increases or decreases monotonically in Fig. 14 in the process of searching for a planning rule applicable to the planning conditions.

[0039] Next, the information acquiring unit 110 registers the schedule creation rule list information 156 (step S104). The information acquiring unit 110 acquires the schedule creation process definition information 154 and the schedule creation rule list information 156 from the business operator device 400 and stores them in the storage unit 150. The schedule creation process definition information 154 and the schedule creation rule list information 156 may be acquired via a communication network NW or from a recording medium.

[0040] FIG. 15 is a diagram illustrating an example of a schedule creation rule according to the embodiment. When the planning process definition information of FIG. 12 is registered, the facility replacement planning device 100 calculates a derivation function of the list of facilities to be replaced in the planning rule 1 as follows: a2(T, raw data, p1, p2, risk list, previous index and ranking list) may be changed to. When the planning process definition information of FIG. 12 is registered, the facility replacement planning device 100 calculates a derivation function of the list of facilities to be replaced in the planning rule 2 as follows: i2(T, raw data, previous index list, parameter 1, parameter 2) may be changed to.

[0041] Next, the information acquisition unit 110 judges whether or not planning condition information has been received from the user terminal device 200 (step S106). If the information acquisition unit 110 has not received the planning condition information, the information acquisition unit 110 waits and repeats the processes from step S100 to step S104 (step S106: NO). If the information acquisition unit 110 has received the planning condition information (step S106: YES), the execution order determination unit 120 searches for a planning rule that can be applied to the received planning condition information (step S108).

[0042] When the execution order determination unit 120 determines that there is a plan creation rule applicable to the plan creation conditions (step S110: YES), the plan creation unit 140 creates an equipment replacement plan with the searched plan creation rule using intermediate data corresponding to the plan creation rule acquired by the intermediate data acquisition unit 130 (step S112). When the execution order determination unit 120 determines that there is no plan creation rule applicable to the plan creation conditions (step S110: NO), the plan creation unit 140 creates an equipment replacement plan by an existing method (step S114). In step S114, the plan creation unit 140 calculates the indexes of all equipment in the power transmission and distribution equipment 300 from raw data, sorts the calculated indexes in descending order, and extracts a list of equipment that achieves the target of the risk reduction amount by assuming that the equipment is replaced in descending order of the indexes. The plan creation unit 140 transmits equipment replacement plan information indicating the created equipment replacement plan to the user terminal device 200 (step S116).

[0043] FIG. 16 is a flowchart showing an example of the process (step S112) of creating a replacement plan using the plan creation rules in the embodiment. When the equipment replacement plan creation device 100 receives a list of planning conditions applicable to the planning rules (step S200), it sets one planning condition (step S202), and the execution order determination unit 120 and the intermediate data acquisition unit 130 determine the execution order and intermediate data of the planning condition according to the variable information of the set planning condition relative to the other planning conditions (step S204).

[0044] The intermediate data acquisition unit 130 judges whether the determined intermediate data is stored in the storage unit 150 (step S206). If the determined intermediate data is stored in the storage unit 150 (step S206: YES), the intermediate data acquisition unit 130 acquires the intermediate data from the storage unit 150. The plan creation unit 140 creates an equipment replacement plan using the raw data and the intermediate data (step S208). If the determined intermediate data is not stored in the storage unit 150 (step S206: NO), the intermediate data acquisition unit 130 does not acquire the intermediate data, and the plan creation unit 140 creates an equipment replacement plan using the raw data (step S210). Next, the plan creation unit 140 stores the intermediate data calculated to create the equipment replacement plan (step S212).

[0045] The plan creation unit 140 determines whether or not there is a next plan creation condition (step S214). If there is a next plan creation condition (step S214: YES), the plan creation unit 140 sets the next plan creation condition (step S202). If there is no next plan creation condition (step S214: NO), the plan creation unit 140 ends the processing of this flowchart.

[0046] As described above, according to the system 1 of the first embodiment, it is possible to determine the execution order of a plurality of planning conditions based on variable information that changes among the plurality of planning conditions, obtain intermediate data based on indexes and parameter values ​​included in the plurality of planning conditions, and create an equipment replacement plan using the intermediate data in the determined order of the planning conditions. According to this equipment replacement plan creation system 1, it is possible to reduce the amount of calculations by using the intermediate data when creating an equipment replacement plan.

[0047] The risks and indicators in the power transmission and distribution facility 300 change by year or by parameters, and therefore calculations are required according to the year and the parameters. However, if the number of facilities included in the power transmission and distribution facility 300 and the number of conditions included in the plan creation conditions are large, the amount of calculations for the facility replacement plan becomes enormous, and the processing time is often long. For this reason, when considering many plan creation conditions for a large-scale power transmission and distribution facility 300, it is desirable to speed up the calculations. According to the facility replacement plan creation system 1, intermediate data obtained by past calculations based on indicators and parameters included in multiple plan creation conditions and variable information that changes between multiple plan creation conditions can be reused when creating a replacement plan for new plan creation conditions, thereby omitting unnecessary calculations.

[0048] 1 may be recorded on a computer-readable recording medium, and the programs recorded on the recording medium may be read into a computer system and executed to realize the facility replacement plan creation device 100, the user terminal device 200, the power transmission and distribution facility 300, and the business operator device 400. Note that the term "computer system" used here includes hardware such as an OS and peripheral devices.

[0049] In addition, "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into computer systems. Furthermore, "computer-readable recording medium" also includes those that dynamically hold a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and those that hold a program for a certain period of time, such as volatile memory inside a computer system that is the server or client in such cases. Furthermore, the above program may be one that realizes part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system.

[0050] Although each embodiment and each modified example have been described, they are merely examples and are not limited thereto, and for example, any of the embodiments and modified examples, or a part of each embodiment or a part of each modified example may be combined with one or more other embodiments or one or more other modified examples to realize one aspect of the present invention. The above-mentioned embodiment has been described with respect to creating a replacement plan for the power transmission and distribution facility 300, but is not limited thereto and may also be applied to facilities such as roads and water supply and sewerage facilities where a business operator sets plan creation conditions based on specific rules and performs facility replacement. [Explanation of symbols]

[0051] 1...equipment replacement plan creation system, 100...equipment replacement plan creation device, 110...information acquisition unit, 120...execution order determination unit, 130...intermediate data acquisition unit, 140...plan creation unit, 150...storage unit, 152...raw data, 154...plan creation process definition information, 156...plan creation rule list information, 158...intermediate data, 200...user terminal device, 400...business operator device

Claims

1. an information acquisition unit that acquires index information indicating an index representing a replacement priority of equipment and schedule creation condition information indicating schedule creation conditions including parameter values ​​for calculating the index; an execution order determination unit that determines an execution order of the plurality of planning conditions based on variable information that changes among the plurality of planning conditions included in the planning condition information acquired by the information acquisition unit; an intermediate data acquisition unit that acquires intermediate data used to create a replacement plan for the equipment based on the indexes and the parameter values ​​included in the plurality of plan creation conditions; a plan creation unit that creates a replacement plan for the equipment using the intermediate data acquired by the intermediate data acquisition unit in the order of the plan creation conditions determined by the execution order determination unit; An equipment replacement plan creation device comprising:

2. When the variable information is the parameter value, and the index included in the plan creation condition acquired by the information acquisition unit monotonically decreases with respect to a change in the parameter value, the execution order determination unit determines to execute the plurality of planning conditions in an order in which the index monotonically decreases; The intermediate data acquisition unit acquires, as the intermediate data, a list of equipment in which the index is sorted in descending order for each period in which the equipment is replaced; the plan creation unit extracts equipment to be replaced in the list of equipment in the order of the plan creation conditions determined by the execution order determination unit, starting from the equipment with the largest index. The facility replacement plan creating device according to claim 1 .

3. When the variable information is a type of the index, and a second index included in a second planning condition is calculated using a first index included in a first planning condition among the plurality of planning conditions, the execution order determination unit determines that the plurality of planning conditions are to be executed in the order of the first planning condition and the second planning condition; the intermediate data acquisition unit acquires, as the intermediate data, the first index calculated using a period for replacing the equipment and the first plan creation condition for each equipment; the plan creation unit calculates a second index by using the first index as the intermediate data, and extracts equipment to be replaced based on the first index and the second index; The facility replacement plan creating device according to claim 1 .

4. an information acquisition unit that acquires index information indicating an index representing a replacement priority of equipment and schedule creation condition information indicating schedule creation conditions including parameter values ​​for calculating the index; an execution order determination unit that determines an execution order of the plurality of planning conditions based on variable information that changes among the plurality of planning conditions included in the planning condition information acquired by the information acquisition unit; an intermediate data acquisition unit that acquires intermediate data used to create a replacement plan for the equipment based on the indexes and the parameter values ​​included in the plurality of plan creation conditions; a plan creation unit that creates a replacement plan for the equipment using the intermediate data acquired by the intermediate data acquisition unit in the order of the plan creation conditions determined by the execution order determination unit; An equipment replacement plan creation system comprising:

5. 5. The equipment replacement plan creation system according to claim 4, further comprising a user terminal device that generates the plan creation condition information based on a user operation, transmits the plan creation condition information to the information acquisition unit, and displays the replacement plan for the equipment created by the plan creation unit.

6. An information acquisition unit acquires index information indicating an index representing a replacement priority of equipment and schedule creation condition information indicating schedule creation conditions including a parameter value for calculating the index; an execution order determination unit determining an execution order of the plurality of planning conditions based on variable information that changes among the plurality of planning conditions included in the acquired planning condition information; An intermediate data acquisition unit acquires intermediate data used for creating a replacement plan for the equipment based on the indexes and the parameter values ​​included in the plurality of plan creation conditions; A plan creation unit creates a replacement plan for the equipment using the acquired intermediate data in the order of the determined plan creation conditions; A method for creating an equipment replacement plan, including:

7. On the computer, acquiring index information indicating an index representing a replacement priority of equipment and schedule creation condition information indicating schedule creation conditions including parameter values ​​for calculating the index; determining an execution order of the plurality of planning conditions based on variable information that changes among the plurality of planning conditions included in the acquired planning condition information; acquiring intermediate data used to create a replacement plan for the equipment based on the indexes and the parameter values ​​included in the plurality of plan creation conditions; creating a replacement plan for the equipment using the acquired intermediate data in the order of the determined plan creation conditions; A program that executes the following.

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