MAINTENANCE PARTS INVENTORY PLANNING SYSTEM, MAINTENANCE PARTS INVENTORY PLANNING SYSTEM SERVER, AND MAINTENANCE PARTS INVENTORY PLANNING SYSTEM CLIENT TERMINAL

• US 20150134400A1
• Filed: 06/13/2012
• Published: 05/14/2015
• Est. Priority Date: 06/13/2012
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Kashi, Satoshi
• Application Number:
  US14/406,260
• Publication Number:
  US 20150134400A1
• Time in Patent Office: Days
• US Class Current: 705/7.28
• CPC Class Codes: G06Q 10/0635 Risk analysis of enterprise or organisation activities
• CPC Class Codes: G06Q 10/087 Inventory or stock management, e.g. order filling, procurement or balancing against orders
• CPC Class Codes: G06Q 10/20 Administration of product repair or maintenance
• CPC Class Codes: Y02P 90/80 Management or planning

Abstract

A maintenance parts inventory planning system which creates a maintenance parts inventory planning of one or more industrial machines by computer (10), the system including: an input reception processing section (1000) which receives an input of information concerning an operating state of an industrial machine, a failure probability of a component, and operating criteria indicating conditions at two points of time, a point of time of part allocation and a point of time of part replacement of a stored part; storing sections (1600-2300) which store information input from the input reception processing section; and plan generation sections (1100-1400) which calculate a failure risk on the basis of the operating state of the industrial machine and the failure probability of the component that are stored in the storing sections, store this calculated failure risk in the storing sections, generate a maintenance parts inventory planning indicating a time-series change in an inventory quantity of maintenance parts, for which a part replacement amount is subtracted from a part allocation amount of maintenance parts so as to fulfill the operating criteria stored in the storing sections and indicating conditions at the two points of time, the point of time of part allocation and the point of time of part replacement of the stored part, and store this generated maintenance parts inventory planning in the storing sections.

Claims

1. A maintenance parts inventory planning system which creates a maintenance parts inventory planning of one or more industrial machines by computer, comprising:

an input reception processing section which receives an input of information concerning an operating state of an industrial machine, a failure probability of a component, operating criteria indicating conditions at two points of time, a point of time of part allocation and a point of time of part replacement of a stored part;

storing sections which store information input from the input reception processing section; and

plan generation sections which calculate a failure risk on the basis of the operating state of the industrial machine and the failure probability of the component that are stored in the storing sections, store this calculated failure risk in the storing sections, generate a maintenance parts inventory planning indicating a time-series change in an inventory quantity of maintenance parts, for which a part replacement amount is subtracted from a part allocation amount of maintenance parts so as to fulfill the operating criteria stored in the storing sections, that indicate the conditions at the two points of time, the point of time of part allocation and the point of time of part replacement of the stored part, and store this generated maintenance parts inventory planning in the storing sections.

2. The maintenance parts inventory planning system according to claim 1,

wherein the input reception processing section further receives, in addition to the information concerning the operating state of the industrial machine, the failure probability of the component, and the operating criteria indicating the conditions at the two points of time, the point of time of part allocation and the point of time of part replacement of the stored part, an input of information concerning an inventory frame that is a theoretical inventory of a stored part,

the storing sections store the information input from the input reception processing section,

the plan generation sections calculate a failure risk on the basis of the operating state of the industrial machine and the failure probability of the component that are stored in the storing sections, store this calculated failure risk in the storing sections, generate a maintenance parts inventory planning for linking a failure risk in the order from higher failure risk to an inventory frame that is the theoretical inventory of the stored part on a one-on-one basis in time series so as to fulfill the operating criteria stored in the storing sections, that indicate conditions at two points of time, the point of time of part allocation and the point of time of part replacement of the stored part, and store this generated maintenance parts inventory planning in the storing sections.

3. The maintenance parts inventory planning system according to claim 2,

wherein the input reception processing section further receives an input of information concerning an in-stock part,

the plan generation sections further generate a maintenance in-stock parts planning in which the in-stock part is linked to the inventory frame on a one-on-one basis in time series in the maintenance parts inventory planning stored in the storing sections, and store this generated maintenance in-stock parts planning in the storing sections.

4. The maintenance parts inventory planning system according to claim 2, comprising a server and a client terminal,

wherein the input reception processing section is provided in the client terminal,

the storing sections and the plan generation sections are provided in the server, and

the server and the client terminal are connected to each other through a network.

5. The maintenance parts inventory planning system according to claim 2, comprising:

an output section that outputs a display screen for input and output,

wherein the display screen comprises;

a screen for inputting information concerning the operating state of the industrial machine, the failure probability of the component, the inventory frame that is the theoretical inventory of the stored part and operating criteria indicating conditions at the two points of time, the point of time of part allocation and the point of time of part replacement of the stored part; and

a screen for displaying the maintenance parts inventory planning generated in the plan generation section and the failure risk stored in the storing sections.

6. The maintenance parts inventory planning system according to claim 2,

wherein when operating criteria indicating conditions at the two points of time, the point of time of part allocation and the point of time of part replacement of the stored part are input, a parts failure probability and a part cumulative usage time at the time of part replacement are input as an operating criteria at the time of part replacement, and a fixed period from the time of part allocation until the time of part replacement is input as an operating criteria at the time of part allocation.

7. A maintenance parts inventory planning system server for creating a maintenance parts inventory planning of one or more industrial machines, the system comprising:

storing sections which store information input from a client terminal that receives an input of information concerning an operating state of an industrial machine, a failure probability of a component, an inventory frame that is a theoretical inventory of a stored part and operating criteria indicating conditions at two points of time, a point of time of part allocation and a point of time of part replacement of a stored part; and

plan generation sections which calculate a failure risk on the basis of the operating state of the industrial machine and the failure probability of the component, that are stored in the storing sections, store this calculated failure risk in the storing sections, generate a maintenance parts inventory planning for linking a failure risk in the order from higher failure risk to an inventory frame that is a theoretical inventory of the stored part on a one-on-one basis in time series so as to fulfill the operating criteria at the time of part allocation and at the time of part replacement of the stored part, that are stored in the storing sections, and store this generated maintenance parts inventory planning in the storing sections.

8. The maintenance parts inventory planning system server according to claim 7,

wherein the client terminal further receives an input of information concerning an in-stock part, and

the plan generation sections further generate, in the maintenance parts inventory planning stored in the storing sections, a maintenance in-stock parts planning in which the in-stock part is linked to the inventory frame on a one-on-one basis in time series, and store this generated maintenance in-stock parts planning in the storing sections.

9. A maintenance parts inventory planning system client terminal which inputs/outputs information to/from a maintenance parts inventory planning system server that creates a maintenance parts inventory planning of one or more industrial machines, the system comprising:

an input reception processing section that receives input concerning an operating state of an industrial machine, a failure probability of a component, an inventory frame that is a theoretical inventory of a stored part and operating criteria indicating conditions at two points of time, a point of time of part allocation and a point of time of part replacement of a stored part; and

an output processing section that outputs information from the maintenance parts inventory planning system server,

wherein the maintenance parts inventory planning system server calculates a failure risk on the basis of the operating state of the industrial machine and the failure probability of the component input from the input reception processing section, and transmits, a maintenance parts inventory planning generated in such a manner that a failure risk is linked to the inventory frame that is the theoretical inventory of the stored part in the order from higher failure risk on a one-on-one basis in time series so as to fulfill the operating criteria indicating conditions at two points of time, the point of time of stored part allocation and the point of time of part replacement of the stored part, to the maintenance parts inventory planning system client terminal, and

wherein the output processing section outputs the maintenance parts inventory planning transmitted from the maintenance parts inventory planning system server.

10. The maintenance parts inventory planning system client terminal according to claim 9,

wherein the input reception processing section further receives an input of information concerning an in-stock part, and

the maintenance parts inventory planning system server further generates, in the maintenance parts inventory planning, a maintenance in-stock parts planning in which the in-stock part is linked to the inventory frame on a one-on-one basis in time series, and the output processing section outputs this generated maintenance in-stock parts planning.