JP2020154350A - Preventive maintenance management device device, preventive maintenance management program, and preventive maintenance management method - Google Patents

Abstract

To provide a preventive maintenance management device for appropriately carrying out preventive maintenance by state-based maintenance for multiple facilities associated with each of multiple sections that make up a building.SOLUTION: A preventive maintenance management device 1 is provided with an acquisition unit 120 for acquiring the operation state information 111e indicating the operation status of a plurality of devices 20 associated with the plurality of sections 21 constituting the building 2, respectively, a failure estimation unit 121 for estimating device failure occurrence probability 111f at which the device 20 fails occurs for each of the plurality of devices 20 based on the operation status information 111e acquired by the acquisition unit 120, a priority determination unit 122 for determining maintenance priority 111g for carrying out preventive maintenance of the device 20 for each of the plurality of devices 20 based on section importance 110b indicating the importance of section 21 and the device failure probability 111f estimated by the failure estimation unit 121.SELECTED DRAWING: Figure 8

Description

The present invention relates to a preventive maintenance management device, a preventive maintenance management program, and a preventive maintenance management method.

Conventionally, as a method of carrying out preventive maintenance of equipment, time-based maintenance that carries out maintenance at regular time intervals and a state that monitors (monitors) the operating state of equipment and carries out maintenance when a sign of failure is found. It is known as standard maintenance. Of these, state-based maintenance has attracted particular attention in recent years because it provides merits such as improvement in equipment reliability and reduction in maintenance costs.

For example, Patent Document 1 discloses an abnormality predicting device that predicts an abnormality in a monitored equipment based on time-series data collected by a sensor installed in the equipment.

Further, in Patent Document 2, the optimization of equipment maintenance, which evaluates the risk from the probability of occurrence of failure of the equipment installed in the plant and the magnitude (degree of influence) of the influence due to the failure, and determines the optimum maintenance method. The system is disclosed.

JP-A-2018-139805 JP-A-2002-123314

However, the abnormality prediction device disclosed in Patent Document 1 uniformly monitors a plurality of monitored equipment, and does not consider the degree of influence of the equipment when a failure occurs in any of the monitored equipment. , Preventive maintenance is carried out under the same conditions regardless of the degree of impact.

In this regard, the equipment maintenance optimization system disclosed in Patent Document 2 considers the degree of influence due to failure for each of a plurality of equipments. However, the degree of influence in the equipment maintenance optimization system disclosed in Patent Document 2 indicates the magnitude of the influence on the operation of a plant composed of a plurality of facilities. Therefore, unlike the plurality of facilities associated with each of the plurality of sections constituting the building, the plurality of facilities are not integrally provided as one system, but are associated with each facility. When the function is provided individually for each section, it is not possible to optimize the equipment maintenance when implementing the state standard maintenance even if such an influence degree is taken into consideration.

The present invention has been made in view of such circumstances, and it is possible to appropriately carry out preventive maintenance by state-based maintenance for a plurality of facilities associated with a plurality of sections constituting a building. The purpose is to provide preventive maintenance management equipment, preventive maintenance management programs, and preventive maintenance management methods that can be performed.

The present invention solves the above problems, and the preventive maintenance management device according to the embodiment of the present invention is
An acquisition unit that acquires operating status information indicating the operating status of a plurality of facilities associated with a plurality of sections that make up a building, and an acquisition unit.
Based on the operating state information acquired by the acquisition unit, a failure estimation unit that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation unit.
Based on the partition importance indicating the importance of the section and the equipment failure occurrence probability estimated by the failure estimation unit, the maintenance priority for carrying out preventive maintenance of the facility is determined for each of the plurality of facilities. It is provided with a priority determination unit.

In addition, in the above preventive maintenance management device,
Further provided is a cost determination unit that selects the equipment whose maintenance priority determined by the priority determination unit satisfies a predetermined criterion, and determines the maintenance cost required for carrying out preventive maintenance of the selected equipment.

In addition, in the above preventive maintenance management device,
The cost determination unit
Based on the maintenance time and maintenance method for implementing the preventive maintenance of the equipment, the first running cost before the implementation of the preventive maintenance, the maintenance cost required for the implementation of the preventive maintenance, and the maintenance cost after the implementation of the preventive maintenance. By specifying the second running cost and integrating the specified first running cost, the maintenance cost, and the second running cost in chronological order, the time before and after the implementation of the preventive maintenance. Determine the overall cost, including transitions.

In addition, in the above preventive maintenance management device,
The cost determination unit
The overall cost is determined for each of a plurality of maintenance conditions in which the maintenance time and the maintenance method are different.
The cost display information generation unit further includes a cost display information generation unit that generates display information for identifiablely displaying a graph showing the time transition of the total cost determined by the cost determination unit for each of the plurality of maintenance conditions.

In addition, in the above preventive maintenance management device,
The priority determination unit
The maintenance priority is given to each of the plurality of facilities based on the importance of the section, the probability of occurrence of the equipment failure, and the degree of influence of the facility failure on the usefulness of the section associated with the facility. judge.

In addition, in the above preventive maintenance management device,
A state display information generation unit that generates display information for identifiablely displaying the division importance, the equipment failure occurrence probability, and the equipment impact degree for each of the plurality of divisions and each of the plurality of equipments. Further prepare.

Further, the preventive maintenance management device according to the embodiment of the present invention is
An acquisition unit that acquires operating status information indicating the operating status of a plurality of facilities associated with a plurality of sections that make up a building, and an acquisition unit.
Based on the operating state information acquired by the acquisition unit, a failure estimation unit that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation unit.
Maintenance to carry out preventive maintenance of the equipment based on the degree of influence of the equipment on the usefulness of the section associated with the equipment and the probability of occurrence of the equipment failure estimated by the failure estimation unit. A priority determination unit for determining the priority for each of the plurality of facilities is provided.

The preventive maintenance management program according to the embodiment of the present invention is
The computer is made to function as each part of the preventive maintenance management device.

The preventive maintenance management method according to the embodiment of the present invention is
An acquisition process for acquiring operation status information indicating the operation status of a plurality of facilities associated with a plurality of sections constituting a building, and an acquisition process.
Based on the operating state information acquired by the acquisition process, a failure estimation process that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation process.
Based on the partition importance indicating the importance of the partition and the equipment failure occurrence probability estimated by the failure estimation unit, the maintenance priority for carrying out preventive maintenance of the equipment is determined for each of the plurality of facilities. It includes a priority determination step.

Further, the preventive maintenance management method according to the embodiment of the present invention is
An acquisition process for acquiring operation status information indicating the operation status of a plurality of facilities associated with a plurality of sections constituting a building, and an acquisition process.
Based on the operating state information acquired by the acquisition process, a failure estimation process that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation process.
Maintenance to carry out preventive maintenance of the equipment based on the degree of influence of the equipment on the usefulness of the section associated with the equipment and the probability of occurrence of the equipment failure estimated by the failure estimation unit. It includes a priority determination step of determining the priority for each of the plurality of facilities.

According to the preventive maintenance management device, the preventive maintenance management program, and the preventive maintenance management method according to the embodiment of the present invention, the priority determination unit or the priority determination process determines the division importance and the equipment failure probability. Based on this, the maintenance priority is determined for each of the plurality of facilities, so that the equipment for which preventive maintenance is highly required is impaired in the compartment importance (that is, the function of the compartment associated with the equipment is impaired due to the failure of the equipment. Judgment is made in consideration of the degree of damage or loss at the time) and the probability of equipment failure. For example, if there are a plurality of facilities having the same probability of occurrence of equipment failure, the facilities associated with the sections having a higher section importance are determined to be facilities for which preventive maintenance is highly required. It is possible to appropriately carry out preventive maintenance by state-based maintenance for multiple facilities associated with each of the sections.

It is an overall block diagram which shows the preventive maintenance management system 100 which concerns on embodiment of this invention. It is a block diagram which shows the preventive maintenance management apparatus 1 which concerns on embodiment of this invention. The building database 110 and the equipment database 111 according to the embodiment of the present invention are shown, (a) is a data structure diagram showing the building database 110, and (b) is a data structure diagram showing the equipment database 111. It is a data structure diagram which shows the maintenance cost database 112 which concerns on embodiment of this invention. It is a data structure diagram which shows the priority determination table 113 which concerns on embodiment of this invention. It is a graph which shows the relationship between the operation state information 111e (the magnitude of vibration) of the equipment 20 which concerns on embodiment of this invention, and the equipment failure occurrence probability 111f. It is a figure which shows the relationship of the section importance 110b, the equipment failure occurrence probability 111f, equipment influence degree 111d, and maintenance priority 111g which concerns on embodiment of this invention. The states of a plurality of facilities 20 associated with the plurality of sections 21 according to the embodiment of the present invention are shown, (a) is a section icon 210 indicating a section importance 110b, (b) a facility failure occurrence probability 111f and a facility effect. It is a figure which shows the distribution state of the equipment icon 200 which shows degree 111d, (c) division importance 110b with respect to a plurality of equipment 20, equipment failure occurrence probability 111f, equipment influence degree 111d, and maintenance priority 111g. It is a graph which shows the total cost CT of the equipment 20 which concerns on embodiment of this invention. It is a flowchart which shows the operation of the preventive maintenance management system 100 which concerns on embodiment of this invention.

Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is an overall configuration diagram showing a preventive maintenance management system 100 according to an embodiment of the present invention. The preventive maintenance management system 100 includes an equipment monitoring sensor 3 that detects the operating state of a plurality of equipment 20 installed in the building 2, and a maintenance state of the plurality of equipment 20 based on the operating state detected by the equipment monitoring sensor 3. The preventive maintenance management device 1 that manages the system, the manager terminal 4 used by the manager M of the building 2, and the preventive maintenance management device 1, the equipment monitoring sensor 3, and the manager terminal 4 are communicably connected to each other. The network 5 is provided. The network 5 may be wired or wireless.

Building 2 is used in any form, for example, as an office building, an apartment house, a commercial facility, a hospital, a school, a welfare facility, a cultural facility, a public facility, a station, an airport, a factory, a warehouse, etc. Will be done.

The building 2 is provided with an indoor space having a predetermined number of floors on at least one of the ground and the underground, and the indoor space is divided by a plurality of sections 21. The section 21 is an arbitrary area in which the indoor space of the building 2 is divided by, for example, a wall, a floor, a ceiling, or the like. The section 21 may be divided into one section for each room or each floor, or a group of a plurality of rooms or a plurality of floors may be divided as one section. Further, the compartment 21 may be conceptually divided by, for example, a function, an application, or the like.

The equipment 20 is installed in the building 2, for example, electrical equipment (power receiving / transforming equipment, high-pressure equipment, etc.), air conditioning equipment (air conditioner, hot / cold water circulation equipment, heat storage equipment, air purifier, etc.), water supply / drainage equipment (water tank, etc.). Septic tanks / filtration equipment, pumps, etc.), disaster prevention equipment (firefighting equipment, fire prevention equipment, etc.), elevating equipment (elevators, escalators, etc.), etc.

Equipment 20 is associated with at least one compartment 21. The number of facilities 20 associated with one section 21 may be one or a plurality, and the number of facilities 20 associated with each section 21 may be the same or different for each section 21. You may. Further, in FIG. 1, the equipment 20 associated with the section 21 is shown in the case where it is installed in the section 21, but it also includes the case where it is installed outside the section 21. When the equipment 20 is installed outside the compartment 21, for example, the equipment 20 is installed on the roof of the building 2 and pipes and wirings are provided to the compartment 21 which is an indoor space different from the roof. This is a case where the function of the equipment 20 is provided through.

The equipment monitoring sensor 3 detects at least one value such as vibration, sound, temperature, pressure, and power consumption as the operating state of the equipment 20 in a predetermined sampling cycle. As the sampling cycle, for example, when detecting a fixed state of the entire device such as loosening of a fixing bolt, a low-period sampling cycle (for example, 2.5 KHz) is set, and a driving state such as bearing wear is set. In the case of detecting, a high-period sampling period (for example, 25 KHz) is set. The equipment monitoring sensor 3 may be built in the equipment 20, may be installed around the equipment 20, or may be retrofitted to the equipment 20. Further, a plurality of equipment monitoring sensors 3 may be attached to one equipment 20.

The administrator terminal 4 is composed of, for example, an information processing device such as a general-purpose computer installed in a management room where the administrator M works, and a mobile terminal device such as a tablet or a smartphone that the administrator M can carry. .. The administrator terminal 4 receives various inputs from the administrator M via the input screen, and presents various information to the administrator M via the display screen and voice. The manager M may be a person who manages the maintenance state of the building 2. For example, not only the owner of the building 2 but also a manager, a builder, who is entrusted with the maintenance work of the building 2. It may be an equipment supplier, a real estate agent, or the like.

The preventive maintenance management device 1 and the manager terminal 4 may be installed in the building 2 or may be installed in a remote place away from the building 2. Further, in FIG. 1, the number of buildings 2 is one, but the number of buildings 2 may be plural, and the preventive maintenance management device 1 and the manager terminal 4 manage the maintenance status of the plurality of buildings 2. It can be anything. Further, in FIG. 1, the preventive maintenance management device 1 and the administrator terminal 4 are one, but the preventive maintenance management device 1 and the administrator terminal 4 may be a plurality.

(Configuration of preventive maintenance management device 1)
FIG. 2 is a block diagram showing a preventive maintenance management device 1 according to an embodiment of the present invention. The preventive maintenance management device 1 is an information processing device such as a general-purpose computer that functions as a server or a cloud. The preventive maintenance management device 1 includes an input unit 10 composed of a keyboard, a touch panel, etc., a storage unit 11 composed of an HDD, a memory, etc., a control unit 12 composed of a processor such as a CPU, and a network 5. It includes a communication unit 13 which is a communication interface, and an output unit 14 composed of a display, a speaker, and the like. The input unit 10 and the output unit 14 may be omitted. In that case, the administrator terminal 4 may function as the input unit 10 and the output unit 14.

The storage unit 11 stores a building database 110, an equipment database 111, a maintenance cost database 112, a priority determination table 113, and a preventive maintenance management program 114 that controls the operation of the preventive maintenance management device 1. There is.

By executing the preventive maintenance management program 114, the control unit 12 serves as the acquisition unit 120, the failure estimation unit 121, the priority determination unit 122, the cost determination unit 123, the maintenance condition determination unit 124, and the display information generation unit 125. Function.

(Data structure of various data stored in the storage unit 11)
FIG. 3A is a data structure diagram showing a building database 110 according to an embodiment of the present invention. The building database 110 is a database that stores a plurality of sections 21 constituting the building 2 in association with the section name 110a and the section importance 110b using the "section ID" as an identification key. In this embodiment, a "hospital" will be described as an example of the building 2.

The section name 110a indicates the floor, position, function, use, etc. of the section 21 in the building 2, and is given an arbitrary name.

The section importance 110b indicates the importance of the section 21 in the building 2, and is an index showing the degree of damage or loss when the function of the section 21 associated with the facility 20 is impaired due to the failure of the facility 20. .. The division importance 110b differs depending on the function of the division 21, and the higher the division importance 110b, the greater the degree of damage or loss when the function of the division 21 is impaired.

In the present embodiment, the division importance 110b is set to three stages of "large", "medium", and "small", and in the example of the hospital shown in FIG. 3A, it plays an important function in lifesaving and treatment. The division importance "Large" is associated with the division 21 of "2nd floor-operating room" and "3rd floor-intensive care unit". The division importance 110b is not limited to three stages, and may be classified at any stage.

FIG. 3B is a data structure diagram showing the equipment database 111 according to the embodiment of the present invention. The equipment database 111 uses the "equipment ID" as an identification key for a plurality of equipment 20 installed in the building 2, and uses the equipment type 111a, the equipment model 111b, the section name 111c, the equipment influence degree 111d, and the operating state information. It is a database which stores 111e, equipment failure occurrence probability 111f, and maintenance priority 111g in association with each other. In this embodiment, "air conditioning equipment" and "water supply / drainage equipment" will be described as an example of the equipment type 111a of the equipment 20.

The equipment type 111a is classified based on the function provided by the equipment 20. The equipment type 111a may be further subdivided. For example, the equipment type 111a of the "air conditioner" includes "air conditioner", "cool / hot water circulation equipment", "heat storage equipment", "air purifier" and the like. It may be subdivided as follows.

The equipment model 111b is classified based on the specifications of the equipment 20, the manufacturing time, and the like, and even if the equipment type 111a is the same, the maintenance cost and the running cost are different because the equipment model 111b is different.

As the section name 111c, the section name 110a of the section 21 associated with the section ID is input in the building database 110 by designating the section ID of the section 21 associated with each facility 20.

The equipment impact degree 111d is an index indicating the degree of influence that the failure of the equipment 20 has on the usefulness of the compartment 21 associated with the equipment 20. The equipment influence degree 111d differs depending on the equipment type 111a, the equipment model 111b, and the like of the equipment 20, and the higher the equipment influence degree 111d, the greater the influence on the function of the section 21.

In the present embodiment, the facility impact degree 111d is set to three stages of “large”, “medium”, and “small”, and in the example of the hospital shown in FIG. 3 (a), for example, “large” for the water supply / drainage facility. The equipment influence degree 111d is associated, and the equipment influence degree 111d of "medium" or "small" is associated with the air conditioner equipment according to the equipment model 111b. The equipment influence degree 111d is not limited to three stages, and may be classified at any stage.

The operating state information 111e is information indicating the operating state of the equipment 20 detected by the equipment monitoring sensor 3. The operating state information 111e is, for example, information obtained by detecting at least one value such as vibration, sound, temperature, pressure, and power consumption of the equipment 20 in a predetermined sampling cycle over a predetermined period from the past to the present. Yes, including the detected value and the detected time.

The equipment failure occurrence probability 111f is a probability that a failure of the equipment 20 will occur. In the present embodiment, the equipment failure occurrence probability 111f has four stages of "high", "medium", "low", and "extremely low". Here, "extremely low" means that the probability of failure occurring is extremely low, and equipment 20 having an equipment failure occurrence probability of 111f of "extremely low" is excluded from the targets of preventive maintenance. The equipment failure occurrence probability 111f is not limited to four stages, and may be classified at any stage. The method of estimating the equipment failure occurrence probability 111f will be described later.

The maintenance priority 111g is an index that serves as a reference when selecting the equipment 20 that is highly necessary to carry out preventive maintenance. In the present embodiment, the maintenance priority 111g is set to 10 stages of "1" to "10", of which "1" has the highest priority and "10" has the lowest priority. To do. Therefore, in the 10 stages of "1" to "10", the lower the number indicating each stage, the higher the maintenance priority 111 g and the higher the need to carry out preventive maintenance. The maintenance priority 111g is not limited to 10 stages, and may be classified at any stage. The method for determining the maintenance priority of 111 g will be described later.

FIG. 4 is a data structure diagram showing the maintenance cost database 112 according to the embodiment of the present invention. The maintenance cost database 112 is a database used for determining the maintenance cost CM when carrying out preventive maintenance of the equipment 20. Specifically, the maintenance cost database 112 includes a repair cost 112a, a running cost after repair 112b, a replacement cost 112c, and a replacement cost for each equipment 20 specified by the equipment type 111a and the equipment model 111b. It is a database which stores the running cost 112d in association with each other. The method for determining the maintenance cost CM will be described later.

The repair cost 112a is a cost for repairing the equipment 20 by parts replacement, maintenance, or the like, and includes, for example, a parts purchase cost, a parts replacement work cost, and the like. The repair cost 112a may vary depending on the type and number of parts to be replaced.

The replacement cost 112c is a cost for replacing the equipment 20 with a new one, and includes, for example, a purchase cost of the equipment 20, a work cost for replacing the equipment, and the like.

The running cost 112b after the repair is a cost per unit time for operating the repaired equipment 20, and includes, for example, an electricity charge, a fuel cost, a consumables purchase cost, and the like. The running cost 112d after the replacement is a cost per unit time for operating the equipment 20 replaced with a new one, and includes, for example, an electricity charge, a fuel cost, a consumables purchase cost, and the like. The running cost 112b after repair and the running cost 112d after replacement may be values that gradually increase with the passage of time after repair or replacement.

FIG. 5 is a data structure diagram showing a priority determination table 113 according to an embodiment of the present invention. The priority determination table 113 is a table that serves as a reference for determining which of the plurality of facilities 20 installed in the building 2 is prioritized for performing preventive maintenance. The priority determination table 113 includes three priority determination tables 113a to 113c corresponding to each of the three stages (“large”, “medium”, and “small”) of the division importance 110b, and the priority determination tables 113a to 113c. Each of the four stages of equipment failure occurrence probability 111f ("high", "medium", "low", "extremely low") and three stages of equipment impact degree 111d ("large", "medium", "small") "1" to "10" of the maintenance priority of 111 g are set for each combination with ").

In the present embodiment, the larger or higher the partition importance 110b, the equipment failure occurrence probability 111f, and the equipment influence degree 111d, the higher the maintenance priority 111g is set. When the equipment failure occurrence probability 111f is "extremely low", the probability of failure occurrence is extremely low and it is excluded from the target of preventive maintenance. Therefore, regardless of each stage of the division importance 110b and the equipment impact degree 111d. However, "10" is set as the maintenance priority 111g. The maintenance priority 111g for each combination of the partition importance 110b, the equipment failure occurrence probability 111f, and the equipment influence degree 111d is not limited to the example shown in FIG. 5, and any maintenance priority 111g may be set.

(Structure of each part of control unit 12)
The acquisition unit 120 acquires the operation state information 111e from the equipment monitoring sensor 3 via the network 5 and stores it in the operation state information 111e of the equipment database 111. The acquisition unit 120 may acquire the operation state information 111e in the same acquisition cycle as the sampling cycle, or collectively acquire the operation state information 111e for a plurality of sampling cycles in an acquisition cycle longer than the sampling cycle. May be good. Further, the acquisition unit 120 may acquire the operation state information 111e at different acquisition cycles for each of the plurality of facilities 20.

The failure estimation unit 121 estimates the equipment failure occurrence probability 111f for each of the plurality of equipments 20 based on the operation state information 111e acquired by the acquisition unit 120, and stores it in the equipment failure occurrence probability 111f of the equipment database 111.

FIG. 6 is a graph showing the relationship between the operating state information 111e (the magnitude of vibration) of the equipment 20 according to the embodiment of the present invention and the equipment failure occurrence probability 111f. In FIG. 6, the horizontal axis represents time, and the vertical axis represents the magnitude (amplitude) of vibration as an example of the operating state information 111e.

The failure estimation unit 121 plots the operating states D1 from the past to the current time Tc side by side in chronological order based on the operating state information 111e of the equipment 20, and plots the approximate line L1 (shown in FIG. 6) by the least squares method, for example. Solid line). Then, the failure estimation unit 121 predicts a range that the future operating state D2 can take (a range surrounded by a broken line shown in FIG. 6) so as to include an operating state when the approximate line L1 is extended to a future time. To do.

Then, the failure estimation unit 121 determines whether or not the magnitude of the vibration indicated by the future operating state D2 exceeds the threshold values α1, α2, and α3 (α1 <α2 <α3) in the failure estimation period T1, and determines whether or not the threshold value is exceeded. If it does not exceed α1, the equipment failure probability 111f is estimated to be “extremely low”, and if it exceeds the thresholds α1, α2, and α3, respectively, the equipment failure probability 111f is set to “low” and “medium”. , And "high" respectively. In the example shown in FIG. 6, the failure estimation unit 121 estimates the equipment failure occurrence probability 111f as “medium” because the future operating state D2 in the failure estimation period T1 exceeds the threshold value α2.

The failure estimation unit 121 may consider the operation history of the equipment 20 (for example, the operation rate, the operation time, etc.) when estimating the equipment failure occurrence probability 111f. The failure estimation period T1 is a specific time point in the future, and may be a fixed value or a value that can be arbitrarily changed by the manager M or the preventive maintenance management device 1. The threshold values α1, α2, and α3 may be different values depending on the equipment type 111a and the equipment model 111b of the equipment 20, or may be learned based on the operation history of the equipment 20 when a failure occurs. ..

The priority determination unit 122 determines the maintenance priority 111g for each of the plurality of equipment 20 based on the partition importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d, and maintains the maintenance priority of the equipment database 111. Store in 111 g.

FIG. 7 is a diagram showing the relationship between the partition importance 110b, the equipment failure occurrence probability 111f, the equipment impact degree 111d, and the maintenance priority 111g according to the embodiment of the present invention.

In the present embodiment, when determining the maintenance priority 111g of the equipment 20, the priority determination unit 122 refers to the building database 110 and identifies the division importance 110b of the division 21 associated with the equipment 20. The equipment failure occurrence probability 111f of the equipment 20 and the equipment influence degree 111d of the equipment 20 on the section 21 are specified with reference to the equipment database 111. Then, the priority determination unit 122 determines the maintenance priority 111g based on the specified partition importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d with reference to the priority determination table 113. To do.

As shown in FIG. 7, when the equipment 20 for which the maintenance priority 111g is determined is the air conditioning equipment having the device ID “2”, the priority determination unit 122 refers to the building database 110 and refers to the building database 110. Identify the division importance "medium" of the division "1st floor-examination room" associated with the air conditioning equipment of device ID "2", refer to the equipment database 111, and equipment failure of the air conditioning equipment of equipment ID "2". The occurrence probability "high" and the equipment influence degree "medium" of the air conditioning equipment of the device ID "2" on the section "1st floor-examination room" are specified. Then, the priority determination unit 122 refers to the priority determination table 113b corresponding to the specified division importance "medium", and corresponds to the equipment failure occurrence probability "high" and the equipment impact degree "medium". The maintenance priority 111g is determined to be "4".

The priority determination unit 122 determines the maintenance priority 111g for each of the plurality of equipment 20 by performing the same processing as described above for the plurality of equipment 20, and as a result, the division importance for the plurality of equipment 20. The distribution status of 110b, equipment failure occurrence probability 111f, equipment influence degree 111d, and maintenance priority 111g can be displayed.

FIG. 8 shows the states of a plurality of facilities 20 associated with the plurality of sections 21 according to the embodiment of the present invention, (a) is a section icon 210 indicating a section importance 110b, and (b) a facility failure occurrence probability. It is a figure which shows the distribution state of the equipment icon 200 which shows 111f and equipment influence degree 111d, (c) division importance 110b with respect to a plurality of equipment 20, equipment failure occurrence probability 111f, equipment influence degree 111d and maintenance priority 111g.

The section icon 210 schematically represents the section 21 in a rectangular shape, and as shown in FIG. 8A, the section importance 110b is indicated by the hatching interval (attribute) inside the rectangle. The compartment icon 210 indicates that the narrower the hatching interval inside the rectangle, the greater the compartment importance 110b.

In the example shown in FIG. 8A, in the partition icon 210, the partition importance 110b corresponds to the hatching interval inside the rectangle, but corresponds to other attributes (color scheme inside the rectangle, etc.) of the partition icon 210. You may. Further, the attribute value of the section icon 210 may be set so as to attract the attention of the administrator M as the section importance 110b is larger.

As shown in FIG. 8B, the equipment icon 200 schematically represents the equipment 20 in a circular shape, the color scheme inside the circle indicates the equipment failure probability 111f, and the size (diameter) of the circle affects the equipment. The degree 111d is shown. The equipment icon 200 indicates that the darker the color scheme inside the circle, the higher the equipment failure probability 111f, and the larger the size of the circle, the larger the equipment influence degree 111d. Further, the equipment icon 200 indicates a maintenance priority of 111 g by a number represented inside the circle.

In the example shown in FIG. 8B, in the equipment icon 200, the equipment failure occurrence probability 111f, the equipment influence degree 111d, and the maintenance priority 111g are set by the color inside the circle of the equipment icon 200, the size of the circle, and the inside of the circle. Although the numbers correspond to each other, the correspondence may be changed as appropriate, or the equipment icon 200 may correspond to other attributes (line thickness, etc.). Further, the attribute value of the equipment icon 200 may be set so as to attract the attention of the manager M as the equipment failure occurrence probability 111f, the equipment influence degree 111d, and the maintenance priority 111g are larger or higher.

The distribution status of the section importance 110b, the facility failure occurrence probability 111f, the facility impact degree 111d, and the maintenance priority 111g for the plurality of facilities 20 installed in the building 2 is shown by the section icon 210 shown in FIG. 8A and FIG. It is schematically represented as shown in FIG. 8 (c) by using the equipment icon 200 shown in 8 (b). That is, the section icons 210 indicating the plurality of sections 21 are arranged in a simplified vertical sectional view of the building 2, and the facility icons 200 indicating the plurality of facilities 20 are the sections to which the facilities 20 are associated. It is arranged inside the compartment icon 210 indicating 21. In the example shown in FIG. 8C, the building 2 is represented by a vertical sectional view, but may be represented by a plan view of each floor.

The cost determination unit 123 selects the equipment 20 whose maintenance priority 111g determined by the priority determination unit 122 satisfies a predetermined standard as the equipment 20 to be cost-determined, and implements preventive maintenance of the selected equipment 20. Determine the required maintenance cost CM. The equipment 20 to be cost-determined that satisfies a predetermined standard may be one or a plurality of equipments. For example, equipment 20 having a maintenance priority of 111 g of "3" or higher may be selected, or the equipment 20 having a maintenance priority of 111 g may be selected. The highest equipment 20 may be selected, or the top three equipment 20 having a high maintenance priority of 111 g may be selected.

In the present embodiment, the cost determination unit 123 refers to the maintenance cost database 112 and refers to the time before and after the implementation of preventive maintenance based on the repair cost 112a or the replacement cost 112c as the maintenance cost CM of the equipment 20 to be cost-determined. Determine the overall cost CT including the transition. Then, the cost determination unit 123 determines the overall cost CT for each of a plurality of maintenance conditions having different maintenance times and maintenance methods for carrying out preventive maintenance.

The maintenance period is an arbitrary time in the future from the current time Tc, for example, a time when a predetermined period elapses from the current time Tc such as a time when one month has passed, a time when three months have passed, or a probability of occurrence of equipment failure 111f. Is the time when is one step higher from "low" to "medium". The maintenance method is a method for carrying out preventive maintenance of the equipment 20, for example, maintenance (repair) by parts replacement, maintenance by new replacement with model change, maintenance by new replacement without model change, etc. is there.

FIG. 9 is a graph showing the overall cost CT of the equipment 20 according to the embodiment of the present invention. In FIG. 9, the horizontal axis shows the time, the vertical axis shows the total cost, and the graph showing the time transition of the four total costs CT1 to CT4 corresponding to the four maintenance conditions is identified for each of the four maintenance conditions. It is displayed in a possible state. The four maintenance conditions are (1) repair after 3 months, (2) repair after 6 months, (3) new replacement with model change after 1 month, and (4) 4 months. It is a new replacement without changing the model at the time of lapse.

The cost determination unit 123 refers to the maintenance cost database 112 and uses the first running costs CR11 to CR14 (preventive maintenance) before the implementation of preventive maintenance as information corresponding to the four maintenance conditions (1) to (4). The running cost after repair 112b or the running cost after replacement 112d specified by the equipment type 111a and the equipment model 111b of the equipment 20 before the implementation, and the maintenance costs CM1 to CM4 (implementation of preventive maintenance) required for the implementation of preventive maintenance. The repair cost 112a or replacement cost 112c specified by the equipment type 111a and equipment model 111b of the equipment 20 before and after the implementation, and the second running costs CR21 to CR24 after the implementation of preventive maintenance (after the implementation of preventive maintenance). The running cost after repair 112b or the running cost after replacement 112d) specified by the equipment type 111a and the equipment model 111b of the equipment 20 of the above is specified, and the specified first running costs CR11 to CR14 and the maintenance cost are specified. The total cost CT1 to CT4 is determined by integrating the CM1 to CM4 and the second running costs CR21 to CR24 in chronological order.

For example, the cost determination unit 123 states that the equipment 20 to be maintained is "air conditioning equipment" and the maintenance condition is "(3) model change after one month has passed (" AC-A "→" AC-B "). When determining the overall cost CT3 when "replacement with a new product accompanied by", the cost determination unit 123 refers to the maintenance cost database 112 and is currently operating the air conditioning equipment (the previous maintenance method is repair). The running cost 112b after repair corresponding to the equipment model "AC-A" is specified as the first running cost CR13, and the replacement cost 112c corresponding to the equipment model "AC-B" of the air conditioning equipment to be replaced with a new one is specified. Is specified as the maintenance cost CM3, and the replacement running cost 112d corresponding to the equipment model “AC-B” of the air conditioning equipment to be replaced with a new one is specified as the second running cost CR23.

Then, the cost determination unit 123 has a first running cost CR13 one month before the current time Tc, a maintenance cost CM3 at the time when one month has passed, and a second running cost CR23 after two months have passed. And are integrated in chronological order to determine the total cost CT3.

The maintenance condition determination unit 124 responds to the selected total cost by selecting the minimum total cost in the cost evaluation period T2 from among the plurality of total costs CT1 to CT4 determined for each of the plurality of maintenance conditions. The maintenance conditions to be performed are determined as the final maintenance conditions. The cost evaluation period T2 is a specific time point in the future and may be a fixed value or a value that can be changed by the manager M or the preventive maintenance management device 1.

In the example shown in FIG. 9, when the cost evaluation period T2 is “10 months”, the maintenance condition determination unit 124 selects the minimum total cost CT1 after 10 months, thereby selecting the minimum total cost CT1. The maintenance condition corresponding to "(1) Repair after 3 months" is determined as the final maintenance condition.

The display information generation unit 125 generates various display information in response to the display information generation request received from the administrator terminal 4, and transmits the display information to the administrator terminal 4 via the communication unit 13 to the administrator terminal 4. Various display screens (details will be described later) are displayed.

The display information generation unit 125, as each unit that generates various display information, performs preventive maintenance of the state display information generation unit 125A that generates display information for displaying various states of the building 2 and the equipment 20 and the equipment 20. A cost display information generation unit 125B for generating display information for displaying various costs at the time of implementation is provided.

The state display information generation unit 125A generates display information for displaying the operation state D1 from the past to the current time Tc and the future operation state D2 based on the operation state information 111e of the equipment 20. On the administrator terminal 4, a display screen including the graph shown in FIG. 6 is displayed as a display screen based on the display information.

The status display information generation unit 125A displays display information for identifiablely displaying the partition importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d for each of the plurality of sections 21 and each of the plurality of facilities 20. Generate. On the administrator terminal 4, a display screen including the distribution state shown in FIG. 8 is displayed as a display screen based on the display information. When displaying the distribution state shown in FIG. 8, the display of the maintenance priority 111g is omitted before the maintenance priority 111g is determined, and the maintenance is performed after the maintenance priority 111g is determined. A display having a priority of 111 g may be added. Further, the display of any of the division importance 110b, the equipment failure occurrence probability 111f, and the equipment influence degree 111d may be omitted.

The cost display information generation unit 125B generates display information for displaying the total cost CT as a graph showing the time transition in an identifiable manner for each of a plurality of maintenance conditions. On the administrator terminal 4, a display screen including the graph shown in FIG. 9 is displayed as a display screen based on the display information.

(About the operation of the preventive maintenance management system 100)
Next, the operation (preventive maintenance management method) of the preventive maintenance management system 100 according to the embodiment of the present invention will be described.

FIG. 10 is a flowchart showing the operation of the preventive maintenance management system 100 according to the embodiment of the present invention. The building database 110 shown in FIG. 3A and the equipment database 111 shown in FIG. 3B (excluding the operation state information 111e and the equipment failure probability 111f) are provided by the administrator terminal 4 by the administrator M. It is assumed that it has been set via.

First, in the acquisition step (step S10), the acquisition unit 120 of the preventive maintenance management device 1 acquires the operation state information 111e from the plurality of equipment 20 and stores it in the equipment database 111 every time a predetermined acquisition cycle elapses. By doing so, the operating state information 111e is accumulated.

Next, in the failure estimation step (step S20), the failure estimation unit 121 estimates the equipment failure occurrence probability 111f for each of the plurality of equipment 20 based on the operation state information 111e stored in the equipment database 111, and the equipment Stored in database 111.

Then, when the preventive maintenance management device 1 receives the display information generation request regarding the operation state information 111e of the specific equipment 20 from the administrator terminal 4 (“Yes” in step S30), the display information generation step (step). In S31), the state display information generation unit 125A generates display information for the display information generation request, so that the administrator terminal 4 displays a display screen including the graph shown in FIG.

Further, when the preventive maintenance management device 1 receives a display information generation request regarding the distribution state of the division importance 110b, the equipment failure occurrence probability 111f, and the equipment influence degree 111d for the plurality of equipment 20 (in step S40, "Yes". ”), In the display information generation step (step S41), the state display information generation unit 125A generates display information for the display information generation request, so that the administrator terminal 4 has a distribution shown in FIG. 8 (c). A display screen including the status (here, the display of the maintenance priority 111g is omitted) is displayed.

Next, in the priority determination step (step S50), the priority determination unit 122 sets a plurality of maintenance priorities 111g based on the partition importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d. Judgment is made for each equipment 20.

Then, when the preventive maintenance management device 1 receives a display information generation request regarding the distribution state of the partition importance 110b, the equipment failure occurrence probability 111f, the equipment impact degree 111d, and the maintenance priority 111g for the plurality of equipment 20 (step). In the display information generation step (step S61), the state display information generation unit 125A generates display information for the display information generation request, so that the administrator terminal 4 can see FIG. A display screen (here, the maintenance priority 111 g is displayed) including the distribution state shown in (c) is displayed.

Next, in the cost determination step (step S70), the cost determination unit 123 selects the equipment 20 whose maintenance priority 111g satisfies a predetermined standard as the equipment 20 to be cost-determined. Then, the cost determination unit 123 determines the total cost CT for each of the plurality of maintenance conditions for the selected equipment 20.

Then, when the preventive maintenance management device 1 receives the display information generation request regarding the overall cost CT of the equipment 20 (“Yes” in step S80), the cost display information is generated in the display information generation step (step S81). The generation unit 125B generates display information for the display information generation request, so that the administrator terminal 4 displays a display screen including the graph shown in FIG.

Next, in the maintenance condition determination step (step S90), the maintenance condition determination unit 124 minimizes the total cost CT1 to CT4 determined for each of the plurality of maintenance conditions in the cost evaluation period T2. By selecting the cost, the maintenance condition corresponding to the selected total cost is determined as the final maintenance condition.

As described above, the preventive maintenance management device 1 determines the final maintenance conditions, and the final maintenance conditions are displayed by the administrator terminal 4.

Therefore, according to the preventive maintenance management device 1 according to the present embodiment, the priority determination unit 122 sets the maintenance priority 111g based on the division importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d. Since the determination is made for each of the plurality of facilities 20, the facility 20 having a high need for preventive maintenance has a partition importance of 110b (that is, the failure of the facility 20 impairs the function of the section 21 associated with the facility 20). Considering the degree of damage or loss at the time), the degree of equipment impact 111d (that is, the degree of influence that the failure of the equipment 20 has on the usefulness of the compartment 21 associated with the equipment 20), and the probability of occurrence of the equipment failure. Is judged. For example, if there are a plurality of equipment 20s having the same equipment failure probability, it is necessary for the equipment 20 associated with the division 21 having a larger division importance 110b and the equipment 20 having a larger equipment impact 111d to carry out preventive maintenance. Is determined to be high equipment 20, so that preventive maintenance by state-based maintenance can be appropriately carried out for the plurality of equipment 20 associated with the plurality of sections 21 constituting the building 2.

Further, according to the preventive maintenance management device 1 according to the present embodiment, the status display information generation unit 125A sets the division importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d for each of the plurality of divisions 21 and Since display information for identifiable display is generated for each of the plurality of facilities 20, the administrator M visually recognizes the display screen based on the display information, so that the partition importance for the plurality of sections 21 and the plurality of facilities 20 It is possible to visually compare the distribution states of 110b, the equipment failure occurrence probability 111f, and the equipment influence degree 111d.

Further, according to the preventive maintenance management device 1 according to the present embodiment, the cost determination unit 123 selects the equipment 20 whose maintenance priority 111 g satisfies a predetermined standard, and is required to carry out preventive maintenance of the selected equipment 20. Since the maintenance cost CM is determined, the manager M can grasp the maintenance cost CM required for carrying out the preventive maintenance of the equipment 20 which is highly necessary to carry out the preventive maintenance.

Further, according to the preventive maintenance management device 1 according to the present embodiment, the cost determination unit 123 has the first running costs 112b and 112d before the implementation of the preventive maintenance and the repair cost as the maintenance cost required for the implementation of the preventive maintenance. By integrating the 112a and the replacement cost 112c and the second running costs 112b and 112d after the implementation of the preventive maintenance in chronological order, the overall cost CT including the time transition before and after the implementation of the preventive maintenance is determined. Person M can grasp the time transition of the total cost CT.

Further, according to the preventive maintenance management device 1 according to the present embodiment, display information for the cost display information generation unit 125B to display a graph showing the time transition of the total cost CT in an identifiable manner for each of a plurality of maintenance conditions. Is generated, so that the administrator M can visually compare the time transition of the total cost CT for a plurality of maintenance conditions by visually recognizing the display screen based on the display information.

(Other embodiments)
Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments and can be appropriately modified without departing from the technical idea of the present invention.

For example, in the above embodiment, the priority determination unit 122 determines the maintenance priority 111g based on the partition importance 110b, the equipment failure occurrence probability 111f, and the equipment impact degree 111d. The degree determination unit 122 may determine the maintenance priority 111g based on (A) the division importance 110b and the equipment failure occurrence probability 111f without considering the equipment influence degree 111d or the division importance 110b. Then, (B) the maintenance priority 111g may be determined based on the equipment influence degree 111d and the equipment failure occurrence probability 111f. The preventive maintenance management device 1 uses any one of the three determination methods of the determination method described in the above embodiment, the determination method (A), and the determination method (B). It may be used, or at least two determination methods may be switched and used.

When the priority determination unit 122 determines the maintenance priority 111g based on the partition importance 110b and the equipment failure occurrence probability 111f as in the determination method of (A) above, the priority shown in FIG. 5 is shown. In the degree determination table 113, the maintenance priority 111g has three stages of partition importance 110b (“large”, “medium”, “small”) and four stages of equipment failure occurrence probability 111f (“high”, “medium”). , "Low", "Very low") may be set for each combination. Further, the status display information generation unit 125A may generate display information for identifiablely displaying the partition importance 110b and the equipment failure occurrence probability 111f for each of the plurality of sections 21 and each of the plurality of facilities 20. On the display screen including the distribution state shown in FIG. 8 (c), the partition icon 210 corresponding to the partition importance 110b and the facility failure occurrence probability 111f do not correspond to the equipment impact degree 111d to the attribute of the equipment icon 200. Display information may be generated so that the equipment icon 200 corresponding to the above is displayed.

When the priority determination unit 122 determines the maintenance priority 111g based on the equipment influence degree 111d and the equipment failure occurrence probability 111f as in the determination method of the above (B), the priority shown in FIG. 5 is shown. In the degree determination table 113, the maintenance priority 111g has three stages (“large”, “medium”, “small”) of the equipment impact degree 111d and four stages (“high”, “medium”) of the equipment failure occurrence probability 111f. , "Low", "Very low") may be set for each combination. Further, the status display information generation unit 125A may generate display information for identifiablely displaying the equipment influence degree 111d and the equipment failure occurrence probability 111f for each of the plurality of sections 21 and each of the plurality of equipment 20. , In the display screen including the distribution state shown in FIG. 8C, the division icon 210 representing the rectangular frame, the equipment influence degree 111d, and the equipment without making the division importance 110b correspond to the attribute of the division icon 210. Display information may be generated so that the equipment icon 200 corresponding to the failure occurrence probability 111f is displayed.

Further, in the above embodiment, the cost determination unit 123 selects the equipment 20 whose maintenance priority 111g satisfies a predetermined standard, and determines the maintenance cost CM required for carrying out preventive maintenance of the selected equipment 20. However, the cost determination unit 123 may be omitted. In that case, the state display information generation unit 125A displays, for example, a display screen or the like including the distribution state shown in FIG. 8C on the administrator terminal 4, so that the administrator M confirms the display screen. Therefore, the equipment 20 having a high maintenance priority of 111 g may be selected.

Further, in the above embodiment, the maintenance condition determination unit 124 has been described as determining the final maintenance condition from the plurality of overall costs CT1 to CT4, but the maintenance condition determination unit 124 may be omitted. In that case, the state display information generation unit 125A displays, for example, a display screen including the graph shown in FIG. 9, a display screen in which a plurality of overall costs CT1 to CT4 are arranged in ascending order, and the like. By displaying the display on 4, the administrator M may check the display screen and determine the final maintenance conditions.

Further, in the above embodiment, the preventive maintenance management program 114 has been described as being stored in the storage unit 11, but it can be read by a computer such as a CD-ROM or DVD in an installable format or an executable format file. It may be recorded and provided on various recording media. Further, the preventive maintenance management program 114 may be provided by storing it on a computer connected to a network such as the Internet and downloading it via the network.

1 ... preventive maintenance management device, 2 ... building, 3 ... equipment monitoring sensor,
4 ... administrator terminal, 5 ... network,
10 ... Input unit, 11 ... Storage unit, 12 ... Control unit, 13 ... Communication unit, 14 ... Output unit,
20 ... equipment, 21 ... compartments, 100 ... preventive maintenance management system,
110 ... Building database, 110a ... Section name, 110b ... Section importance,
111 ... Equipment database, 111a ... Equipment type, 111b ... Equipment model,
111c ... Section name, 111d ... Equipment impact level, 111e ... Operating status information,
111f ... Equipment failure probability, 111g ... Maintenance priority, 112 ... Maintenance cost database,
112a ... Repair cost, 112b ... Running cost after repair 112c ... Replacement cost, 112d ... Running cost after replacement 113, 113a to 113c ... Priority judgment table, 114 ... Preventive maintenance management program,
120 ... Acquisition unit, 121 ... Failure estimation unit, 122 ... Priority determination unit,
123 ... Cost determination unit, 124 ... Maintenance condition determination unit, 125 ... Display information generation unit,
125A ... Status display information generation unit, 125B ... Cost display information generation unit,
200 ... Equipment icon, 210 ... Section icon

Claims (10)

An acquisition unit that acquires operating status information indicating the operating status of a plurality of facilities associated with a plurality of sections that make up a building, and an acquisition unit.
Based on the operating state information acquired by the acquisition unit, a failure estimation unit that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation unit.
Based on the partition importance indicating the importance of the section and the equipment failure occurrence probability estimated by the failure estimation unit, the maintenance priority for carrying out preventive maintenance of the facility is determined for each of the plurality of facilities. Includes a priority determination unit,
A preventive maintenance management device characterized by this. A cost determination unit for selecting the equipment whose maintenance priority determined by the priority determination unit satisfies a predetermined criterion and determining the maintenance cost required for carrying out preventive maintenance of the selected equipment is further provided.
The preventive maintenance management device according to claim 1. The cost determination unit
Based on the maintenance time and maintenance method for implementing the preventive maintenance of the equipment, the first running cost before the implementation of the preventive maintenance, the maintenance cost required for the implementation of the preventive maintenance, and the maintenance cost after the implementation of the preventive maintenance. Identify the second running cost and
By integrating the specified first running cost, the maintenance cost, and the second running cost in chronological order, the total cost including the time transition before and after the implementation of the preventive maintenance is determined.
The preventive maintenance management device according to claim 2, characterized in that. The cost determination unit
The overall cost is determined for each of a plurality of maintenance conditions in which the maintenance time and the maintenance method are different.
The cost display information generation unit further includes a cost display information generation unit that generates display information for identifiablely displaying a graph showing the time transition of the total cost determined by the cost determination unit for each of the plurality of maintenance conditions.
The preventive maintenance management device according to claim 3, characterized in that. The priority determination unit
The maintenance priority is given to each of the plurality of facilities based on the importance of the section, the probability of occurrence of the equipment failure, and the degree of influence of the failure of the facility on the usefulness of the section associated with the facility. judge,
The preventive maintenance management device according to any one of claims 1 to 4, wherein the preventive maintenance management device is characterized. A state display information generation unit that generates display information for identifiablely displaying the division importance, the equipment failure occurrence probability, and the equipment impact degree for each of the plurality of divisions and each of the plurality of equipments. Further prepare
The preventive maintenance management device according to claim 5, characterized in that. An acquisition unit that acquires operating status information indicating the operating status of a plurality of facilities associated with a plurality of sections that make up a building, and an acquisition unit.
Based on the operating state information acquired by the acquisition unit, a failure estimation unit that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation unit.
Maintenance to carry out preventive maintenance of the equipment based on the degree of influence of the equipment on the usefulness of the section associated with the equipment and the probability of occurrence of the equipment failure estimated by the failure estimation unit. A priority determination unit for determining the priority for each of the plurality of facilities is provided.
A preventive maintenance management device characterized by this. A preventive maintenance management program for causing a computer to function as each part of the preventive maintenance management device according to any one of claims 1 to 7. An acquisition process for acquiring operation status information indicating the operation status of a plurality of facilities associated with a plurality of sections constituting a building, and an acquisition process.
Based on the operating state information acquired by the acquisition process, a failure estimation process that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation process.
Based on the partition importance indicating the importance of the partition and the equipment failure occurrence probability estimated by the failure estimation unit, the maintenance priority for carrying out preventive maintenance of the equipment is determined for each of the plurality of facilities. Includes a priority determination process,
A preventive maintenance management method characterized by this. An acquisition process for acquiring operation status information indicating the operation status of a plurality of facilities associated with a plurality of sections constituting a building, and an acquisition process.
Based on the operating state information acquired by the acquisition process, a failure estimation process that estimates the probability of equipment failure occurrence of the equipment failure for each of the plurality of facilities, and a failure estimation process.
Maintenance to carry out preventive maintenance of the equipment based on the degree of influence of the equipment on the usefulness of the section associated with the equipment and the probability of occurrence of the equipment failure estimated by the failure estimation unit. A priority determination step for determining the priority for each of the plurality of facilities is provided.
A preventive maintenance management method characterized by this.

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