KR101267429B1 - Replacement period analyzing apparatus - Google Patents

Abstract

PURPOSE: A replacement cycle analyzing apparatus is provided to concurrently display graphs about reliability and life-cycle cost, thereby helping for estimation of an replacement cycle for an object. CONSTITUTION: A project module(110) receives a plurality of new project names as input. A system tree module(120) collects BOM(Bill Of Material) information about parts and components of an object. The system tree module generates tree structures of the parts and components corresponding to a new project name. An FRACAS(Failure Reporting, Analysis, and Corrective Action System) module(130) collects failure information from the BOM information. An LCC(Life-Cycle Cost) module(140) collects life-cycle cost information from the BOM information. A reliability/life-cycle analysis module(150) computes reliability and life-cycle cost based on the failure information and life-cycle cost information. [Reference numerals] (110) Project module; (120) System tree module; (130) FRACAS module; (140) LCC module; (150) Reliability/life-cycle analysis module; (160) Graph drawing module; (170) Database; (180) Control module

Description

Replacement Cycle Analysis Device {REPLACEMENT PERIOD ANALYZING APPARATUS}

The present invention relates to a replacement cycle analysis device, and more particularly, to a replacement cycle analysis device capable of efficiently predicting replacement cycles of parts and the like for an object.

In general, reliability engineering refers to engineering that finds the temporal stability that one system can operate satisfactorily for a predetermined time depending on the use conditions. Such reliability engineering can find reliability through the development, testing, production, and life cycle of any system.

For example, parts replacement requires a replacement cycle, which is based on reliability information from the manufacturer of the part. The reliability information includes a failure rate by time, reliability by time, a check period and a replacement period.

Alternatively, reliability data may be collected by collecting failure data generated during actual operation and applying statistical techniques according to reliability theory based on the collected failure data. With the reliability calculated as described above, the replacement cycle of the part may be approximated and the replacement cycle may be obtained based on the approximated value.

However, there have been many problems in terms of reliability because the replacement cycles thus obtained are calculated without considering data such as costs and failure rates for repair, replacement, maintenance and operation of parts.

Representative examples of such a problem include Korean Patent No. 10 4845 4, filed December 04, 2006, Korean Patent No. 1086027, filed October 21, 2009, and Japan, filed November 22, 2002. The registered patent JP4069373 is mentioned.

The present invention has been made to solve the above-described problems, using the BOM information on the parts and components to calculate the reliability and life cycle cost, and to implement them in a graph form in real time to replace the parts and components The purpose is to provide a replacement cycle analysis device that can accurately predict the cycle.

In particular, the present invention obtains the reliability and life cycle cost by calculating the reliability and the life cycle cost of failure information accumulated up to now in one object to be operated by calculating the reliability and life cycle cost from various result values inferred through probability theory. Another object is to provide a replacement cycle analyzer that can accurately predict the appropriate replacement cycle.

In order to accomplish the objects of the present invention as described above and to carry out the characteristic functions of the present invention described below, features of the present invention are as follows.

According to an aspect of the present invention, a replacement cycle analysis apparatus for analyzing a replacement cycle for an object, comprising: a project module for receiving a plurality of new project names; A system tree module for collecting BOM information on parts and components included in an object and generating the parts and components in a tree structure corresponding to any new project name inputted from the project module; A FRACAS module that collects failure information from the BOM information to check a failure state of components and components configured in the system tree module; An LCC module for collecting life cycle cost information from the BOM information to identify a replacement cycle for the parts and components; A reliability / lifecycle analysis module for calculating reliability and lifecycle costs based on fault information and lifecycle cost information collected by the FRACAS module and the LCC module; A graph implementation module for displaying and displaying the reliability and life cycle cost calculated by the reliability / life cycle analysis module in one integrated graph form over time; And a database storing data processed by the project module, the system tree module, the FRACAS module, the LCC module, the reliability / life cycle analysis module, and the graph implementation module. The reliability / life cycle analysis module includes an exponential index. ), The reliability of the object is calculated using any one selected from Log-normal distribution, Normal distribution and Weibull distribution, and the exponential distribution is represented by the following equation (3) Replacement cycle analysis device, characterized in that represented by.
(Equation 3)

Here, the replacement cycle analysis apparatus according to an aspect of the present invention, when the user clicks on the corresponding position with respect to the reliability and life cycle cost graph displayed in the graph form, the graph form includes a guide bar implemented in response to the click. And a guideline implementation module displayed on the reliability and lifecycle cost graphs.

In addition, the database according to an aspect of the present invention is preferably a relational database.

In addition, the reliability analysis module according to an aspect of the present invention by using any one selected from the exponential distribution, Log-normal distribution, Normal distribution and Weibull distribution. The reliability of can be calculated.

As described above, according to the present invention, by implementing the reliability and life cycle cost in the form of a graph at the same time, it is possible to calculate the appropriate replacement cycle as feedback on the failure of the parts and components included in the target object, the previous replacement cycle This is helpful when you want to change it.

This allows the task force team to automatically analyze the required reliability and life cycle cost of the target object, rather than using an artificial method such as report output, thereby eliminating human work. There is an effect that can reduce the mistakes caused by.

In addition, the present invention displays the coordinate values of the reliability and life cycle cost in the range on the graph, so that even if the operator does not have a reliable expert, it is easy to make an appropriate replacement cycle through the trend of the graph of the reliability graph and life cycle cost. It can be inferred.

1 is a block diagram showing each configuration of the replacement cycle analysis apparatus 100 according to an embodiment of the present invention by way of example.
2 is a diagram illustrating a state in which an actual graph is drawn on a graph component after the graph implementation module 160 is operated according to an embodiment of the present invention.
3 is a diagram illustrating a process flow between modules described in FIG. 1 according to an embodiment of the present invention.
4 is a diagram illustrating a start screen after the reliability / life cycle analysis module 150 is executed according to an embodiment of the present invention.
5 is a view showing a screen state including the LCC information for the life cycle cost analysis for the analysis of the A component in the main system according to an embodiment of the present invention.
6 is a section analysis screen showing a value within a specific range to exemplify a value in more detail in the graph shown in FIG. 5 according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

Example of replacement cycle analyzer

1 is a block diagram showing each configuration of the replacement cycle analysis apparatus 100 according to an embodiment of the present invention by way of example. 2 is a diagram illustrating a state in which an actual graph is drawn on a graph component after the graph implementation module 160 is operated according to an embodiment of the present invention.

As shown in FIG. 1, the replacement cycle analysis apparatus 100 according to an embodiment of the present invention is an apparatus for analyzing a replacement cycle for an object, and includes a project module 110, a system tree module 120, and a FRACAS. Module 130, LCC module 140, reliability / lifecycle analysis module 150, graph implementation module 160, database 170, and control module 180.

First, the project module 110 according to the present invention serves to receive a plurality of new project names by inputting data to be used throughout the project when it is desired to manage the data to be used as a bundle by the name of the project.

Next, the system tree module 120 according to the present invention collects bill of materials (BOM) information about parts and components included in an object (for example, devices and systems such as electricity, electronics, and chemistry), and inputs them from the project module 110. It is responsible for creating parts and components in the form of a tree structure corresponding to any new project name.

The bill of material information includes information on parts used in design, advance cost information of developed products, purchase information for purchase management, material information for zero material management, material list information for product production, and lifespan. Periodic cost information It contains the fault information related to the fault, process formation information, component composition information and cost information for after-sales service.

This BOM information is used throughout each module described later. On the other hand, the component is a subordinate concept of the component, it can be said that each component is provided with a plurality of components.

The form of the tree structure for the parts and components of the object generated based on such BOM information is indicated by reference numeral 401 of FIG. 4 to be described later.

Next, the FRACAS module 130 according to the present invention is to determine the failure information from the BOM information collected in the system tree module 120 to check the failure status for the parts and components of the tree structure generated in the system tree module 120 It is responsible for collecting and managing.

In general, FRACAS (Failure Reporting, Analysis, and Corrective Action System) is provided in the form of a solution that manages the overall failure management in one system operation such as failure information reporting, analysis, and troubleshooting, but in the present embodiment, FRACAS The module 130 collects and manages fault information from bill of material information, and is used for the purpose of calculating reliability, which will be described later.

Next, the LCC module 140 according to the present invention collects life cycle cost information from the BOM information provided in the system tree module 120 to check the replacement cycle for the parts and components provided in the object.

Normally, life-cycle cost (LCC) refers to all costs incurred throughout the life cycle of a system, from design to development, production, operation and maintenance, and disposal, meaning a solution for analyzing lifecycle costs. Although used as, the LCC module 140 implemented in this embodiment has the purpose of utilizing the LCC as basic data for replacement cycle analysis.

Next, the reliability / lifecycle analysis module 150 according to the present invention collects the failure information and the lifecycle cost information collected by the FRACAS module 130 and the LCC module 140, and based on the reliability and lifecycle cost It serves to calculate.

For example, the following Equation 1 is used to calculate the lifecycle cost. That is, the reliability / life cycle analysis module 150 according to the present invention may calculate the life cycle cost (LCC) of the object using the following Equation 1 based on the collected life cycle cost information.

LCC = C _IC + C _IN + C _E + C _O + C _M + C _S + C _EMV + C _D ..... (Equation 1)

Here, C _IC = initial purchase cost, C _IN = installation and commissioning cost, and C _E = energy consumption (power) cost. In addition, the C ₀ = operating costs (management costs), the C _M = maintenance costs, the C _S = stop loss costs, the C _EMV = environmental burden costs and the C _D = demolition and disposal It means cost.

As a result, the lifecycle cost information utilized by the reliability / lifecycle analysis module 150 includes initial purchase cost information, commissioning cost information, energy consumption (power) cost, operating cost (management cost) information, maintenance cost information, and interruption loss. Cost information, environmental cost information and demolition and disposal cost information may be included.

As another example, the following Equation 2 may be used to calculate the lifecycle cost. That is, the reliability / life cycle analysis module 150 according to the present invention may calculate the life cycle cost (LCC) of the object using Equation 2 below based on the collected life cycle cost information.

LCC = C _IC + C _M + C _E ..... (Equation 2)

Here, C _IC = initial purchase cost, C _M = maintenance cost, and C _E = energy consumption cost.

As such, when the life cycle cost (LCC) is calculated and calculated, it may be used as a replacement cycle for the object in the graph implementation module 160 which will be described later.

On the other hand, in order to calculate the reliability, the reliability / life cycle analysis module 150 according to the present invention collects the fault information, the exponential distribution, the log-normal distribution, the normal distribution, and the Weibull ( Weibull) calculates the reliability of the object using any one selected from the distribution.

The exponential distribution, the log-normal distribution, the normal distribution, and the Weibull distribution refer to a probability theory that models the lifespan to represent reliability. Probability distributions can be drawn from random variables and distribution functions to form a set of failures. In this case, the reliability can be calculated using the Weibull distribution having the advantage of approximating the exponential distribution and the normal distribution by changing the parameter value of the distribution function.

Here, the exponential distribution is represented by the following Equation 3, the lognormal distribution is represented by the following Equation 4, and the normal distribution is represented by the following Equation 5. The Weibull distribution can be expressed by the following equation (6).

                                (Equation 3)

                                   (Equation 4)

                               (Eq. 5)

                            (Equation 6)

As such, when the failure information and the probability distribution formula selected from the exponential distribution, the log-normal distribution, the normal distribution, and the Weibull distribution are used, the coordinate value of the reliability is determined. Can be quantified. The coordinate value of the quantified reliability may be used as a replacement cycle for the object in the graph implementation module 160 which will be described later.

Next, the graph implementation module 160 according to the present invention implements the coordinate values of the reliability and life cycle cost coordinates calculated in the reliability / life cycle analysis module 150 in one integrated graph form over time It serves to display. The integrated graph in which the coordinate value of the reliability and the coordinate value of the life cycle cost is expressed may be represented as shown in FIG. 2.

In the graph shown in FIG. 2, there is time on the horizontal axis, and the coordinate value of the reliability 601 and the coordinate value of the life cycle cost 602 obtained on the reliability / life cycle analysis module 150 on the vertical axis are quantified. 601, 602.

Here, when a user clicks a corresponding position on the graph of the reliability and the life cycle cost displayed in the graph form, the reliability graph 601 shows the guide line bars 603, 604, and 605 implemented in response to the click. And life cycle cost graph 602 for display. In this case, Weibull distribution was used in FIG. 2 to obtain reliability.

Therefore, even the non-expert can easily know the reliability and life cycle cost of the object using the above graph.

Next, the database 170 according to the present invention is a project module 110, system tree module 120, FRACAS module 130, LCC module 140, reliability / life cycle analysis module 150 and graph implementation module It serves to store data processed or input at 160.

The database 170 (DB) refers to a general data structure implemented in a storage space (hard disk or memory) of a computer system using a database management program (DBMS), and retrieves (extracts), deletes, edits, It is a data storage type that can be added freely, and can be used in relational database management systems (RDBMS) such as Oracle, MyProsoft (MSSQL), Infomix, Sybase, DB2, and MYSQL. , Object-oriented database management systems (OODBMS) such as Gemston, Orion, O2, and XML Native Databases such as Excelon, Tamino, Sekaiju, etc. It may be implemented according to the purpose of the present embodiment using, and may have a form having a suitable field (Field) or elements in order to achieve its function.

Finally, the control module 180 according to the present invention is a project module 110, system tree module 120, FRACAS module 130, LCC module 140, reliability / life cycle analysis module 150, graph implementation It controls the flow of data between the module 160 and the database 170. As a result, a unique function may be performed in each module.

In the following description, each module described above may be implemented as user interface software in a substantially template form.

Example process flow between modules

3 is a diagram illustrating a process flow between modules described in FIG. 1 according to an embodiment of the present invention. Referring to FIG. 3, the project module 110 is executed to generate a new project name and the like and store it in the database 170 (P210).

Thereafter, when the system tree module 120 is executed, BOM information of the object to be managed is collected and stored in the database 170 (P230). Thereafter, the FRACAS module 130 and the LCC module 140 are executed, and the fault information and the life cycle cost information necessary for the analysis are collected by the FRACAS module 130 and the LCC module 140 and stored in the database 170 (P250). , P270).

Then, when the reliability / life cycle analysis module 150 is executed, the failure information and life cycle cost information stored in the database 170 by the previous two modules (130, 140) is requested to the database 170, the database ( Based on the failure information and the life cycle cost information provided from 170, the coordinate values of the reliability and the life cycle cost are calculated using the probability distribution equation and the life cycle cost equations (Equations 1 to 5).

Accordingly, when the graph implementation module 160 is executed, the coordinate values of the calculated reliability and the life cycle cost are collectively displayed in the graph form as shown in FIG. This graph implementation module 160 is not shown in FIG. 3.

As such, the reliability and lifecycle costs presented in the form of finally integrated graphs can be very helpful in estimating the appropriate replacement cycle as feedback on component and component failures.

Example of Start Analysis Screen

4 is a diagram illustrating a start screen after the reliability / life cycle analysis module 150 is executed according to an embodiment of the present invention. Referring to FIG. 4, each module described above is operated in the start screen on the user interface of FIG. 4. The start screen is divided into three sections: the system tree explorer 401, the property explorer 402, and the main window explorer 403. The screen is used in the same manner in all the modules described with reference to FIG.

The start screen shown in FIG. 4 confirms the information input or collected from the project module 110 such as the overall life span and the start date of the object (system) of the basic setting for the analysis of the A part, and is transferred from the FRACAS module 130. It is a screen to check the fault information.

When the component A placed in the BOM of the main system of the object is selected in the system tree explorer 401, the attribute explorer 402 changes the screen to the attributes related to the component A. Here, the basic common properties of the main system and special properties belonging only to the A part can be displayed collectively.

At this time, the user can be changed when the analysis needs to be different attribute values. All of the definitions of the above-mentioned A part can be confirmed in the attribute explorer 402.

In this case, it can be seen that 22 fault information about the A component appear in the dataset tab of the main window explorer from May 2, 2009 to September 30, 2012 after the operation start date (403).

Example of display status of LCC information

5 is a view showing a screen state including the LCC information for the life cycle cost analysis for the analysis of the A component in the main system according to an embodiment of the present invention.

Referring to FIG. 5, since the component A is selected in the system tree explorer 401 shown in FIG. 4 and the analysis period of the component A is set to September 30, 2012, when the LCC information is confirmed in FIG. As of April 5, 2009, lifecycle cost information is identified (501).

Here, the failure information on May 2, 2009, which is the first failure, can also be confirmed (502). When the user checks the analysis start button or the analysis start menu of the menu, the user can obtain the coordinate values of the reliability and life cycle cost described above.

Screen example of interval analysis

6 is a section analysis screen showing a value within a specific range to exemplify a value in more detail in the graph shown in FIG. 5 according to an embodiment of the present invention.

First, as an analysis unit of interval analysis, which is an attribute of the attribute searcher illustrated in FIG. 4, one of time, reliability, and lifecycle cost is selected (402). In contrast, in FIG. 5, the analysis unit was used as time and data was obtained. In this case, when the analysis time is selected between 11600 and 20000 hours and the time interval is 100 hours, the result through the execution event as shown in FIG. 6 is confirmed in the section analysis tab of the main window explorer (701). As a result, it can be seen that reliability and life cycle cost appear on the screen for each interval from 11600 hours.

Thus, as can be seen through Figures 3 to 6, in the present embodiment is implemented in the form of a user interface made in the form of a user-friendly template by each module, it is possible to conveniently check the reliability and life cycle cost, non-expert You can also easily predict the replacement cycle.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. You can understand that you can do it. The embodiments described above are therefore to be considered in all respects as illustrative and not restrictive.

100: replacement cycle analysis unit 110: project module
120: system tree module 130: FRACAS module
140: LCC module 150: reliability / life cycle analysis module
160; Graph implementation module 170: database
180: control module

Claims (11)

Replacement cycle analysis device for analyzing the replacement cycle for the object,
A project module for receiving a plurality of new project names;
A system tree module for collecting BOM information on parts and components included in an object and generating the parts and components in a tree structure corresponding to any new project name inputted from the project module;
A FRACAS module that collects failure information from the BOM information to check a failure state of components and components configured in the system tree module;
An LCC module for collecting life cycle cost information from the BOM information to identify a replacement cycle for the parts and components;
A reliability / lifecycle analysis module for calculating reliability and lifecycle costs based on fault information and lifecycle cost information collected by the FRACAS module and the LCC module;
A graph implementation module for displaying and displaying the reliability and life cycle cost calculated by the reliability / life cycle analysis module in one integrated graph form over time; And
And a database storing data processed by the project module, the system tree module, the FRACAS module, the LCC module, the reliability / life cycle analysis module and the graph implementation module. The reliability / life cycle analysis module includes:
The reliability of the object is calculated using any one selected from an exponential distribution, a log-normal distribution, a normal distribution, and a Weibull distribution. Replacement cycle analysis device, characterized in that represented by the formula (3).
(Equation 3)

The method of claim 1,
The graph implementation module,
When the user clicks on a corresponding position with respect to the graph of the reliability and life cycle cost displayed in the graph form, the graph form displays a guide line bar corresponding to the click on the reliability and life cycle cost graph. Rotation cycle analysis device. The method of claim 1,
The database is a replacement cycle analysis device, characterized in that the relational database. The method of claim 1,
The reliability / life cycle analysis module,
Replacement cycle analysis device, characterized in that for calculating the life cycle cost (LCC) of the object using the following equation (1).
LCC = C _IC + C _IN + C _E + C _O + C _M + C _S + C _EMV + C _D ..... (Equation 1)
The C _IC = initial purchase cost, the C _IN = installation and commissioning cost, the C _E = energy consumption (power) cost, the C _O = operating cost (management cost), the C _M = maintenance cost, the C _S = Interruption cost, C _EMV = environmental cost and C _D = demolition and disposal cost. The method of claim 1,
The reliability / life cycle analysis module,
Replacement cycle analysis device, characterized in that for calculating the life cycle cost (LCC) of the object using the following equation (2).
LCC = C _IC + C _M + C _E ..... (Equation 2)
The C _IC = initial purchase cost, the C _M = maintenance costs and the C _E = energy consumption costs. delete delete The method of claim 1,
The lognormal distribution, the replacement cycle analysis device, characterized in that represented by the following (Equation 4).
(Equation 4)

The method of claim 1,
The normal distribution, replacement cycle analysis device, characterized in that represented by the following equation (5).
(Equation 5)

The method of claim 1,
The Weibull distribution, the replacement cycle analysis device, characterized in that represented by the following formula (6).
(Equation 6)

The method of claim 1,
The graph implementation module, the replacement cycle analysis device, characterized in that for representing the graph form in the form of a template.

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