KR102135719B1 - Parts management device and operating method of the same - Google Patents

Abstract

A method of operating a component management apparatus according to an embodiment of the present invention includes calculating an average failure time of a component and analyzing reliability; Selecting a target part based on the average failure time and the operating time of the part; And it characterized in that it comprises the step of generating a maintenance table by year for the target component.

Description

PARTS MANAGEMENT DEVICE AND OPERATING METHOD OF THE SAME

An embodiment of the present invention relates to a component management device and a method of operating the same, particularly a component management device capable of providing reliable results by calculating a maintenance cost for each component using an engineering analysis method and a method of operating the same.

The life or reliability of equipment, parts or systems is expressed using Mean Tine Between Failure (MTBF), which is considered to be more reliable. Using these variables, methods for predicting equipment maintenance costs reflecting the replacement demand of parts have been proposed.

In the conventional method, the maintenance cost prediction method reflecting the replacement demand of a part uses a model for simple prediction by combining input data based on hardware characteristic values (eg, dimensions, weight, development difficulty, manufacturing complexity, etc.). This method requires considerable input data, implies the possibility of errors due to the author's qualitative judgment and input ambiguity, and provides only the results of the total maintenance cost, and thus limited comparative analysis of results by detailed items.

The problem to be solved by the present invention relates to a component management apparatus and an operation method thereof that can provide reliable results by calculating a maintenance cost for each component using an engineering analysis method.

In addition, another problem to be solved by the present invention is to provide a parts management device and a method of operating the same, capable of reflecting a medium and long-term maintenance cost budget and enabling stable maintenance by predicting maintenance costs by year.

In order to achieve the above object, an operation method of a component management apparatus according to an embodiment of the present invention includes: calculating an average failure time of components and analyzing reliability; Selecting a target part based on the average failure time and the operating time of the part; And it characterized in that it comprises the step of generating a maintenance table by year for the target component.

In the present invention, the step of selecting the target part comprises: determining whether the part is an item that is expected to be replaced; Determining whether the component is an assembly when the component is an item that is expected to require replacement; If the component is an assembly, comparing replacement and repair costs for the component; Comparing the average failure time and the operation time when the replacement cost is less than the repair cost; And when the operation time is greater than the average failure time, selecting the component as the target component.

In the present invention, when the replacement cost is greater than or equal to the repair cost, the method further includes determining whether the parts are separately, and when the parts are separately, proceeding to comparing the average failure time and the operating time It is characterized by.

In the present invention, when the component is not an assembly, it is characterized in that it proceeds to the step of comparing the average failure time and the operating time.

In the present invention, comparing the replacement cost and the repair cost for the parts includes: extracting keywords indicating characteristics of the parts; Extracting the replacement cost and the repair cost for the component by performing a search in the database using the keyword; And comparing the extracted replacement cost and the repair cost.

In the present invention, generating a maintenance cost table for each year of the target component includes: calculating a reference maintenance cost with respect to a reference time point; And

Comprising the step of calculating a plurality of maintenance costs for a plurality of time points,

The reference time point is characterized in that the part is operated at the average failure time.

In the present invention, the step of calculating the reference maintenance ratio calculates the reference maintenance ratio using Equation 1, [Equation 1] G0=N*P*F0, G0 is the reference maintenance ratio, and N is the target It is characterized in that the number of parts, P is the unit price of the target part, e is a natural constant, and F0 is a constant having a value of (1-e^(-1)) as a reference failure rate.

In the present invention, the step of calculating the step of calculating the plurality of maintenance costs includes: calculating a first input operating time and a second input operating time for each of the first time point and the second time point; Calculating a first reliability and a second reliability based on the first input operating time and the second input operating time; Calculating a first failure rate and a second failure rate based on the first reliability and the second reliability; And calculating a first maintenance cost and a second maintenance cost based on the first failure rate and the second failure rate, wherein the first time point is an operation end time point of the year including the reference time point, and the The second time point is characterized in that it is a time point for ending the operation of the next year of the corresponding year.

In the present invention, the step of calculating the first input operating time and the second input operating time calculates the k(k is a natural number) input operating time using Equation 2, [Equation 2] Wk= M+k*DC, Wk is the kth input operating time, M is the average failure time, D is the annual operating time, and C is a constant calculated by M%D (% is the remaining operation) do.

In the present invention, the step of calculating the first reliability and the second reliability calculates the k-th reliability using Equation 3, [Equation 3] Rk=e^(-Wk/M), Rk It is characterized by the kth reliability, e being a natural constant, Wk being the kth input operating time, and M being the average failure time.

In the present invention, the step of calculating the first failure rate and the second failure rate calculates the k-th failure rate using Equation 4, [Equation 4] Fk=1-Rk, Fk is the k-th failure rate, Rk is characterized by a k-th reliability.

In the present invention, the step of calculating the first maintenance ratio and the second maintenance ratio calculates the k-th maintenance ratio using Equation 5, and [Equation 5] Gk=N*P*(Fk-F(k- 1)), Gk is the kth maintenance ratio, N is the quantity of the target part, P is the unit price of the target part, Fk is the kth failure rate, F(k-1) is the kth (k-1) failure rate It is characterized by being.

In order to achieve the above object, a reliability analysis module for analyzing the reliability by calculating the average failure time of the parts; A target component selection module for selecting a target component based on the average failure time and the operating time of the component; It characterized in that it comprises a table generating module for generating a maintenance cost table for each year for the target component.

In the present invention, the target component selection module includes: a replacement required determination module for determining whether the component is an item that is expected to be replaced; An assembly determination module for determining whether the component is an assembly when the component is an item that is expected to require replacement; A comparison module comparing the replacement cost and the repair cost for the parts when the parts are an assembly, and comparing the average failure time and the operating time when the replacement cost is less than the repair cost; If the replacement cost is greater than or equal to the repair cost, a single item determination module for determining whether the part is a single item; And a target component selection module for selecting the component as the target component when the operating time is greater than the average failure time.

In the present invention, the table generation module includes a reference calculation module for calculating a reference maintenance ratio with respect to a reference time point; And a sequential calculation module for calculating a plurality of maintenance costs for a plurality of time points.

The parts management apparatus and its operation method according to an embodiment of the present invention can provide a reliable result by calculating a maintenance cost for each part using an engineering analysis method.

In addition, the parts management apparatus and the operation method thereof according to an embodiment of the present invention can predict a maintenance cost for each year, thereby enabling a medium and long-term maintenance cost budget and stable maintenance.

The effects obtainable in the present invention are not limited to the above effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

1 is a view showing an operation method of a component management apparatus according to an embodiment of the present invention.
2 is a view showing in detail the step of selecting a target component according to an embodiment of the present invention.
3 is a view showing in detail the steps of comparing the replacement and repair costs according to an embodiment of the present invention.
4 is a view showing in detail the step of generating a maintenance table for each year according to an embodiment of the present invention.
5 is a view showing in detail the step of calculating a plurality of maintenance costs according to an embodiment of the present invention.
6 is a view showing a method of calculating a plurality of maintenance costs according to an embodiment of the present invention.
7 is a view showing in detail a maintenance cost table for each year according to an embodiment of the present invention.
8 is a view showing a parts management apparatus according to an embodiment of the present invention.
9 is a view showing in detail a target component selection module according to an embodiment of the present invention.
10 is a view showing in detail a table generation module according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention and other matters necessary for those skilled in the art to easily understand the contents of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention can be implemented in a variety of different forms within the scope of the claims, so the embodiments described below are merely exemplary, regardless of whether they are expressed.

The same reference numerals refer to the same components. In addition, in the drawings, the thickness, ratio, and dimensions of the components are exaggerated for effective description of technical content. “And/or” can include any combination of one or more that the associated configurations can define.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from other components. For example, the first component may be referred to as a second component without departing from the scope of the present invention, and similarly, the second component may be referred to as a first component. Singular expressions may include plural expressions unless the context clearly indicates otherwise.

In addition, terms such as "below", "below", "above", "above", etc. are used to describe the relationship between the components shown in the drawings. The terms are relative concepts and are explained based on the directions indicated in the drawings.

The terms "include" or "have" are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, one or more other features, numbers, or steps. It should be understood that it does not preclude the existence or addition possibility of the operation, components, parts or combinations thereof.

That is, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms. In the following description, when a part is connected to another part, it is directly connected. In addition, it may also include a case in which other elements are electrically connected in between. In addition, it should be noted that the same components in the drawings are denoted by the same reference numbers and symbols as possible, even if they are displayed on different drawings.

1 is a view showing an operation method of a component management apparatus according to an embodiment of the present invention.

Referring to Figure 1, the operation method of the parts management device will be described in detail below.

The parts management device may analyze the reliability by calculating the average failure time of the parts (S100). The average failure time means the average time from failure to failure when a part or device is operated. The average failure time is used to indicate the reliability of a component or device, and the longer the average failure time, the higher the reliability. For example, the average failure time for the parts list may be calculated in units of hours using prediction software commonly used in the technical field of the present invention.

The parts management device may select the target part based on the average failure time and the operating time of the part (S200). For example, the parts management apparatus may select a part having a larger operating time than an average failure time as a target part in consideration of a cost-effectiveness aspect from a parts list.

The parts management device may generate a maintenance cost table for each year of the target part (S300). For example, the parts management device utilizes the reliability function according to the average failure time, and the parts maintenance cost is reflected in 63.21% of parts in the year when the corresponding part is operated for the average failure time, and the parts maintenance cost after the average failure time is 36.79 % Parts. The reliability at the time of operation corresponding to the average failure time is 36.76%, and the failure rate may be 63.21%. Details related to this will be described later.

2 is a view showing in detail the step (S200) of selecting a target component according to an embodiment of the present invention.

1 and 2, the step (S200) of selecting a target component is described in detail below.

The step of selecting the target part (S200) includes determining whether the part is an item that is expected to be replaced (S210), determining whether the part is an assembly (S220), and comparing the replacement cost and repair cost for the part (S230). , It may include the step of determining whether the part is a single item (S235), comparing the average failure time and operating time (S240), and selecting the part as the target part (S250).

The parts management device may determine whether the parts are items that are expected to be replaced (S210). For example, the parts management device may determine which one of the plurality of parts included in the parts list is an item that is expected to be replaced.

If the part is an item that is expected to be replaced (YES in S210), the parts management device may determine whether the part is an assembly (S220). For example, the assembly may be a part produced by assembly to detailed parts. When the component is an assembly (YES in S200), the component management apparatus may proceed to step S230 of comparing the replacement cost and the repair cost for the component. If the part is not an assembly (NO in S200), the parts management device may proceed to a step (S240) of comparing the average failure time and operating time when the part is not an assembly (NO in S200).

When the component is an assembly (YES in S220), the component management device may compare the replacement cost and the repair cost for the component (S230). For example, the replacement cost is a cost required to replace a part, and the repair cost may mean a cost required to repair a part. As a result of the comparison, when the replacement cost of the parts is smaller than the repair cost (YES in S230), the parts management device may proceed to step S250 of comparing the average failure time and operating time of the parts. If the replacement cost of the part is greater than or equal to the repair cost (NO in S230), the parts management device may proceed to step S235 to determine whether the part is a single item.

When the replacement cost is greater than or equal to the repair cost (NO in S230), the parts management device may determine whether the part is a single item (S235). For example, a single item may mean a product that reaches a limit that can no longer be classified in color, pattern, material, and price. If the part is a single item (YES in S235), the parts management device may proceed to the step of comparing the average failure time and operating time (S240).

If the part is not an assembly (NO in S220), if the replacement cost of the part is less than the repair cost (YES in S230), or if the part is single-piece (YES in S235), the parts management unit has the average failure time and operating time of the part. Can be compared (S240).

If the operating time of the part is greater than the average failure time (YES in S240), the parts management device may select the corresponding part as the target part (S250).

3 is a view showing in detail the step (S230) of comparing the replacement and repair costs according to an embodiment of the present invention.

1 to 3, comparing the replacement cost and the repair cost (S230) will be described in detail below.

Comparing the replacement cost and the repair cost (S230) is a step of extracting a keyword indicating characteristics of the part (S231), and performing a search in the database using the keyword to extract the replacement cost and the repair cost for the part (S232) ) And comparing the extracted replacement and repair costs (S233 ).

The component management device may extract keywords indicating characteristics of the component (S231). For example, the characteristic may be any one of a part name, material, size, and shape.

The parts management device may perform a search in the database using keywords to extract replacement and repair costs for parts (S232). For example, the database may be a storage device included in the parts management device or an external data server. However, the present invention is not limited to this.

The parts management device may compare the extracted replacement cost and repair cost (S233).

4 is a view showing in detail the step (S300) of generating a maintenance cost table for each year of the target part according to an embodiment of the present invention.

Referring to FIGS. 1 and 4, the step (S300) of generating a maintenance cost table for each year of the target component is described in detail below.

Generating a maintenance cost table for each year of the target component (S300) may include calculating a reference maintenance cost for a reference time point (S310) and calculating a plurality of maintenance costs for a plurality of time points (S320). .

The parts management device may calculate a reference maintenance cost with respect to the reference point of time (S310). The reference point in time may be a point in time when the corresponding component has been operated for an average amount of time.

For example, the parts management apparatus may calculate the reference maintenance cost using [Equation 1].

[Equation 1]

G0=N*P*F0, G0 is the reference maintenance ratio, N is the number of the target parts, P is the unit price of the target parts, e is a natural constant, and F0 is the reference failure rate (1-e^( It may be a constant having a value of -1)).

The component management apparatus may calculate a plurality of maintenance costs for a plurality of viewpoints (S320). The plurality of time points may refer to the operation end times of each of the corresponding year including the reference time point and subsequent years.

5 is a view showing in detail the step (S320) of calculating a plurality of maintenance costs according to an embodiment of the present invention.

1, 4 and 5, the step of calculating a plurality of maintenance ratios for a plurality of viewpoints (S320) is described in detail below.

The calculating of a plurality of maintenance costs (S320) includes calculating a first input operating time and a second input operating time for each of the first time point and the second time point (S321), the first input operating time and the second input Calculating the first reliability and the second reliability based on the operating time (S322), calculating the first failure rate and the second failure rate based on the first reliability and the second reliability (S323), and the first Based on the failure rate and the second failure rate, it may include the step of calculating the first maintenance cost and the second maintenance cost (S324).

The parts management device may calculate a first input operation time and a second input operation time for each of the first time point and the second time point (S321). The first time point may be an operation end time of the corresponding year including the reference time point, and the second time point may be an operation end time of the next year of the corresponding year. Each of the first input operating time and the second input operating time may be an operating time of the parts at the first time point and the second time point. For example, the component management apparatus may calculate the k(k is a natural number) input operating time using [Equation 2].

[Equation 2]

Wk=M+k*DC, Wk is the kth input operating time, M is the average failure time, D is the annual operating time, and C is the remaining value calculated by M%D (% is the remainder operation) It can be a constant.

The parts management apparatus may calculate the first reliability and the second reliability based on the first input operating time and the second input operating time (S322). Each of the first reliability and the second reliability may be reliability of the component at the first time point and the second time point. For example, the parts management apparatus may calculate k-th reliability using [Equation 3].

[Equation 3]

Rk=e^(-Wk/M), Rk is the kth reliability, e is the natural constant, Wk is the kth input operating time, and M can be the average failure time.

The component management apparatus may calculate a first failure rate and a second failure rate based on the first reliability and the second reliability (S323). For example, each of the first failure rate and the second failure rate may be a failure rate of components at the first time point and the second time point. The parts management apparatus can calculate the k-th failure rate using [Equation 4].

[Equation 4]

Fk=1-Rk, Fk is the kth failure rate, and Rk may be the kth reliability.

The parts management apparatus may calculate the first maintenance cost and the second maintenance cost based on the first failure rate and the second failure rate (S324). For example, the first maintenance cost and the second maintenance cost may be maintenance costs of the parts at the first time point and the second time point. The parts management apparatus may calculate the k-th maintenance cost by using [Equation 5].

[Equation 5]

Gk=N*P*(Fk-F(k-1)), Gk is the kth maintenance ratio, N is the quantity of the target parts, P is the unit price of the target parts, Fk is the kth failure rate, and F (k-1) may be the (k-1) failure rate.

6 is a view showing a method of calculating a plurality of maintenance costs according to an embodiment of the present invention.

Referring to FIG. 6, the quantity (N) and unit price (P) may be set for parts having a part name. The quantity (N) and the unit price (P) for the parts may be pre-stored values and may be changed according to user control.

The annual operating time (D) for the former part can be defined by year as shown. For example, the annual operating hours D for each of the use start year YR, the first set year Y1, and the second set year Y2 may be set equal to each other. However, the present invention is not limited thereto, and yearly operating hours may be defined differently for each year.

The reference time point T0 may be a point in time when the former part was operated for an average time of failure (M) from the start time of operation.

The first time point T1 is the operation end time of the first set year Y1 including the reference time point T0, and the second time point T2 is the second year of the first set year Y1. It may be the end of operation of the set year Y2.

The remaining failure time (C) of the corresponding year may be a constant having a remaining value calculated by the average failure time (M)% annual operation time (D) (% is the remaining operation).

For convenience of description, only the start year (YR), the first set year (Y1), and the second set year (Y2) are shown, but the set year between the start year (YR) and the first set year (Y1) is shown. Of course, the same may be applied to the set years between the field and the second set year Y2.

7 is a view showing in detail a maintenance cost table for each year according to an embodiment of the present invention.

1 to 7, the maintenance cost table for each year includes input operation time (W), reliability (R), failure rate (F) for reference time point (T0) and a plurality of time points (T1, T2 and Tk), and Maintenance cost (G) may be included.

The reference input operating time (W0) for the reference time point (T0) is equal to the average failure time (M), the reference reliability (R0) has a value of (e^(-1)), and the reference failure rate (F0) is ( 1-R0) value, and the reference maintenance ratio G0 may have a (N*P*F0) value.

The first input operation time W1 at the first time point T1 may have a value of (M+D-C). The first reliability R1 of the first time point T1 may have a value of (e^(-W1/M)). The first failure rate F1 at the first time point T1 may have a value of (1-R1). The first maintenance ratio G1 of the first time point T1 may have a value of (N*P*(F1-F0)). However, the present invention is not limited to this. Unlike other maintenance ratio values including the second maintenance ratio G2 to the k-th maintenance ratio Gk, according to an embodiment, the first maintenance ratio G1 may have a (N*P*(F1)) value.

The second input operation time W2 at the second time point T2 may have a value of (M+2*D-C). The second reliability R2 of the second time point T2 may have a value of (e^(-W2/M)). The second failure rate F2 at the second time point T2 may have a value of (1-R2). The second maintenance ratio G2 of the second time point T2 may have a value of (N*P*(F2-F1)).

Accordingly, the kth input operating time Wk of the kth time point Tk for any natural number k may have a value of (M+k*D-C). The kth reliability Rk of the kth time point Tk may have a value of (e^(-Wk/M)). The k-th failure rate Fk at the k-th time point Tk may have a value of (1-Rk). The k-th maintenance ratio Gk at the k-th time point Tk may have a value of (N*P*(Fk-F(k-1))).

8 is a view showing a component management apparatus 10 according to an embodiment of the present invention. In order to prevent overlapping of the description, the contents overlapping with the description in FIG. 1 are omitted.

1 to 8, the component management apparatus 10 may include a control unit 100, a memory unit 200, a communication unit 300, and a bus unit 400.

The control unit 100 may control the overall operation of the parts management device 10. According to an embodiment, the control unit 100 may be implemented as a central processing unit (CPU), a micro processing unit (MPU), or a graphic processing unit (GPU).

The memory unit 200 may store a number of instructions constituting a program that can be executed by the control unit 100, parts list data for a parts list, and part property data indicating part properties. According to an embodiment, the memory unit 200 may be implemented as a read only memory (ROM), a random access memory (RAM), a hard disk drive (HDD), or a solid state drive (SSD).

The communication unit 300 may perform communication between the parts management device 10 and an external (eg, database server). For example, the communication unit 300 may communicate with an external server through a network. According to an embodiment, the communication unit 300 may perform communication using all types of wired/wireless networks such as a local area network (LAN), a wide area network (WAN), a mobile communication network, and Wibro.

The bus unit 400 may transmit and receive data between the control unit 100, the memory unit 200, and the communication unit 300. According to an embodiment, the bus unit 400 may be implemented as a bus interface.

The control unit 100 may include a reliability analysis module 110, a target component selection module 120, and a table generation module 130. In the present specification, a module means a software (program) in which commands constituting a program stored in the memory unit 200 are executed by the controller 100.

The reliability analysis module 110 may analyze the reliability R by calculating the average failure time M of the component.

The target component selection module 120 may select the target component based on the average failure time (M) of the component and the operating time (W) of the component.

The table generation module 130 may generate a maintenance cost table for each year of the target component.

9 is a view showing in detail the target component selection module 120 according to an embodiment of the present invention. In order to prevent overlapping of descriptions, content overlapping with descriptions in FIG. 2 is omitted.

1 to 9, the target component selection module 120 includes a replacement required determination module 121, an assembly determination module 122, a comparison module 123, a single item determination module 124, and a target component selection module ( 125).

The replacement requirement determination module 121 may determine whether the part is an item that is expected to be replaced. For example, the replacement requirement determination module 121 may determine which one of the plurality of parts included in the parts list is an item that is expected to be replaced.

The assembly determination module 122 may determine whether the component is an assembly when the component is an item that requires replacement.

The comparison module 123 may compare replacement and repair costs for parts when the parts are assemblies.

The unit determination module 124 may determine whether a component is a single unit when the replacement cost is greater than or equal to the repair cost.

If the part is not an assembly, if the replacement cost of the part is less than the repair cost, or if the part is a single piece, if the operating time is greater than the average breakdown time, the comparison module 123 provides an average breakdown time (M) and an operating time (W ).

When selecting the target part, when the operating time W is greater than the average failure time M, the corresponding part can be selected as the target part.

10 is a view showing in detail the table generation module 130 according to an embodiment of the present invention.

1 to 10, the table generation module 130 may include a reference calculation module 131 and a sequential calculation module 132.

The reference calculation module 131 may calculate a reference maintenance ratio G0 with respect to the reference time point T0. Here, the reference time point T0 may be a time point at which the component is operated for an average failure time M.

For example, the reference calculation module 131 may calculate the reference maintenance ratio G0 using [Equation 1].

[Equation 1]

G0=N*P*F0, G0 is the reference maintenance ratio, N is the number of the target parts, P is the unit price of the target parts, e is a natural constant, and F0 is the reference failure rate (1-e^( It may be a constant having a value of -1)).

The sequential calculation module 132 may sequentially calculate a plurality of maintenance ratios for the plurality of viewpoints T1 and T2. The plurality of time points T1 and T2 may mean the operation end times of each of the corresponding year Y1 including the reference time point T0 and subsequent years Y2.

According to the above-described contents of the present invention, the parts management apparatus and its operation method according to an embodiment of the present invention can provide a reliable result by calculating a maintenance cost for each part using an engineering analysis method. In addition, the parts management apparatus and the operation method thereof according to an embodiment of the present invention may enable medium and long-term maintenance cost budget reflection and stable maintenance by predicting maintenance cost by year.

The effects obtainable in the present invention are not limited to the above effects, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.
As described above, the functional operations described in the present specification and the embodiments related to the present subject matter are implemented in digital electronic circuits or computer software, firmware or hardware, or a combination of one or more of them, including structures disclosed herein and their structural equivalents. It is possible.
Embodiments of the subject matter described herein may include one or more computer program products, ie, one or more computer program instructions that are encoded on a tangible program medium for execution by a data processing device or to control its operation. It can be implemented as a module. The tangible program media may be propagated signals or computer readable media. Propagated signals are artificially generated signals, such as, for example, machine-generated electrical, optical or electromagnetic signals generated to encode information for transmission to a suitable receiver device for execution by a computer. The computer-readable medium may be a machine-readable storage device, a machine-readable storage substrate, a memory device, a combination of materials affecting a machine-readable propagated signal, or a combination of one or more of them.
A computer program (also known as a program, software, software application, script, or code) can be written in any form of a compiled or interpreted language or a programming language, including a priori or procedural language, and can be used as a standalone program or module, It can be deployed in any form, including components, subroutines or other units suitable for use in a computer environment.
Computer programs do not necessarily correspond to files on file devices. A program may be in a single file provided to the requested program, or in multiple interactive files (eg, one or more files storing modules, subprograms or parts of code), or of files that hold other programs or data. It may be stored in some (eg, one or more scripts stored in a markup language document).
The computer program can be deployed to be executed on one computer or on multiple computers that are located at one site or distributed across multiple sites and interconnected by a communication network.
Additionally, the logical flows and structural block diagrams described in this patent document describe corresponding actions and/or specific methods supported by corresponding functions and steps supported by the disclosed structural means, and corresponding It can also be used to build software structures and algorithms and their equivalents.
The processes and logic flows described herein can be performed by a programmable processor, one or more executing a computer program in order to perform functions by operating on input data and generating output.
Processors suitable for the execution of a computer program include, for example, both general purpose and special purpose microprocessors, and any one or more processors of any type of digital computer. Generally, the processor will receive instructions and data from read-only memory or random access memory or both.
A key element of a computer is one or more memory devices for storing instructions and data, and processors for performing instructions. In addition, the computer is generally such that one or more for storing data, such as a magnetic, magnetic optical disk or optical disk, is operable to receive data from, transfer data to, or perform both of those operations from a mass storage device. Combined or will include. However, the computer need not have such a device.
The described description presents the best mode of the present invention, and provides examples for explaining the present invention and for those skilled in the art to make and use the present invention. This written specification is not intended to limit the invention to the specific terms presented.

In the above, it has been described with reference to preferred embodiments of the present invention, but those skilled in the art or those of ordinary skill in the art will depart from the spirit and technical scope of the present invention described in the claims below. It will be understood that various modifications and changes may be made to the present invention without departing from the scope.

Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

10: parts management device 100: control unit
110: reliability analysis module 120: target component selection module
130: table creation module 200: memory
300: communication unit 400: bus unit

Claims (15)

In the operation method of the parts management apparatus including a reliability analysis module, a target part selection module and a table generation module,
Calculating, by the reliability analysis module, an average failure time of the parts and analyzing the reliability;
Selecting, by the target component selection module, a target component based on the average failure time and the operating time of the component; And
Generating, by the table generation module, a maintenance cost table for each year for the target part,
The step of generating a maintenance cost table for each year of the target part,
Calculating, by the reference calculation module, a reference maintenance cost with respect to a reference time point; And
And calculating, by the sequential calculation module, a plurality of maintenance costs for a plurality of viewpoints,
The reference time point is a time point at which the component was operated for the average failure time,
The plurality of time points are operation end times of each of the corresponding year including the reference time point and subsequent years,
In the calculating the reference maintenance ratio, the reference maintenance ratio is calculated using Equation 1,
[Equation 1]
G0=N*P*F0,
G0 is the reference maintenance ratio, N is the number of the target parts, P is the unit price of the target parts, e is a natural constant, and F0 is a constant having a value of (1-e^(-1)) as the reference failure rate. Method of operating the parts management device, characterized in that.
According to claim 1,
The step of selecting the target part,
Determining, by the replacement requirement determination module, whether the part is an item that is expected to be replaced;
Determining, by the assembly determination module, whether the component is an assembly when the component is an item that is expected to be replaced;
Comparing, by the comparison module, a replacement cost and a repair cost for the part when the part is an assembly;
Comparing, by the comparison module, the average failure time and the operation time when the replacement cost is less than the repair cost; And
And selecting, by the target component selection module, the component as the target component when the operating time is greater than the average failure time. According to claim 2,
If the replacement cost is greater than or equal to the repair cost by the unit determination module, further comprising the step of determining whether the part is a single unit,
If the part is a single unit, the method of operating the parts management apparatus, characterized in that proceeding to the step of comparing the average failure time and the operating time. According to claim 2,
If the part is not an assembly, the method of operating the parts management apparatus, characterized in that proceeding to the step of comparing the average failure time and the operating time. According to claim 2,
Comparing the replacement and repair costs for the parts,
Extracting, by the comparison module, keywords representing characteristics of the part;
Extracting, by the comparison module, the replacement cost and the repair cost for the part by performing a search in the database using the keyword; And
And comparing the extracted replacement cost and the repair cost by the comparison module. delete delete According to claim 1,
Calculating the step of calculating the plurality of maintenance costs,
Calculating a first input operation time and a second input operation time for each of the first time point and the second time point by the sequential calculation module;
Calculating, by the sequential calculation module, first reliability and second reliability based on the first input operating time and the second input operating time;
Calculating, by the sequential calculation module, a first failure rate and a second failure rate based on the first reliability and the second reliability; And
And calculating, by the sequential calculation module, a first maintenance cost and a second maintenance cost based on the first failure rate and the second failure rate,
The first time point is an operation end time point of the year including the reference time point,
The second time point, characterized in that the operation end time of the next year of the year, the operation method of the parts management apparatus.
The method of claim 8,
In the calculating of the first input operating time and the second input operating time, the k(k is a natural number) input operating time is calculated using Equation 2,
[Equation 2]
Wk=M+k*DC, Wk is the kth input operating time, M is the average failure time, D is the annual operating time, and C is a constant calculated by M%D (% is the remaining operation) Method of operating the parts management device characterized in. The method of claim 9,
In the calculating of the first reliability and the second reliability, k-th reliability is calculated using Equation (3),
[Equation 3]
Rk=e^(-Wk/M), Rk is the kth reliability, e is the natural constant, Wk is the kth input operating time, and M is the average failure time. The method of claim 10,
In the calculating of the first failure rate and the second failure rate, the kth failure rate is calculated using Equation 4,
[Equation 4]
Fk=1-Rk, Fk is the kth failure rate, and Rk is the kth reliability. The method of claim 11,
In the calculating of the first maintenance ratio and the second maintenance ratio, the k-th maintenance ratio is calculated using Equation 5,
[Equation 5]
Gk=N*P*(Fk-F(k-1)), Gk is the kth maintenance ratio, N is the quantity of the target parts, P is the unit price of the target parts, Fk is the kth failure rate, and F (k-1) is the operation method of the parts management apparatus, characterized in that the (k-1) failure rate. A reliability analysis module that analyzes reliability by calculating an average failure time of parts;
A target component selection module for selecting a target component based on the average failure time and the operating time of the component;
And a table generation module for generating a maintenance cost table for each year of the target part,
The table creation module,
A reference calculation module for calculating a reference maintenance cost with respect to a reference point of time; And
It includes a sequential calculation module for calculating a plurality of maintenance costs for a plurality of time points,
The reference time point is a time point at which the component was operated for the average failure time,
The plurality of time points are operation end times of each of the corresponding year including the reference time point and subsequent years,
The reference calculation module calculates the reference maintenance ratio using Equation 1,
[Equation 1]
G0=N*P*F0,
G0 is the reference maintenance ratio, N is the number of the target parts, P is the unit price of the target parts, e is a natural constant, and F0 is a constant having a value of (1-e^(-1)) as the reference failure rate. Parts management device, characterized in that. The method of claim 13,
The target component selection module,
A replacement required determination module for determining whether the part is an item that is expected to be replaced;
An assembly determination module for determining whether the component is an assembly when the component is an item that is expected to require replacement;
A comparison module comparing the replacement cost and the repair cost for the parts when the parts are an assembly, and comparing the average failure time and the operating time when the replacement cost is less than the repair cost;
If the replacement cost is greater than or equal to the repair cost, a single item determination module for determining whether the part is a single item; And
And a target component selection module that selects the component as the target component when the operation time is greater than the average failure time. delete

Images