Manufacture condition setting system, manufacture condition setting method, control program, and computer-readable record medium recording control program therein

• US 7,519,446 B2
• Filed: 04/18/2006
• Issued: 04/14/2009
• Est. Priority Date: 04/20/2005
• Status: Active Grant

• Current Assignee: Omron Corporation
• Original Assignee: Omron Corporation
• Inventors: Fujii, Toru
• Primary Examiner(s): DeCady; Albert
• Assistant Examiner(s): Garland; Steven R
• Application Number:
  US11/405,699
• Publication Number:
  US 20060259176A1
• Time in Patent Office: 1,092 Days
• Field of Search: 700/108, 700103-105, 700/174
• US Class Current: 700/108
• CPC Class Codes: G05B 19/418 Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
• CPC Class Codes: G05B 2219/31324 Distributed real time knowledge, database
• CPC Class Codes: G05B 2219/32187 Correlation between controlling parameters for influence on quality parameters
• CPC Class Codes: G05B 2219/35529 Monitoring current machining, store information in database as a new working case
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: Y02P 90/02 Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]

Abstract

A manufacture condition setting system includes a manufacture state acquisition unit to which static/dynamic conditions and a product quality in the case where the static/dynamic conditions do not change for, at least, a predetermined number of manufactured articles in an ordinary manufacture state are inputted together with reference information, a dynamic condition inference unit which estimates and outputs a corresponding optimal dynamic condition in a case where a combination of the static conditions is an experienced one, and a dynamic condition correction unit which, if necessary, corrects inference knowledge stored by the dynamic condition inference unit, by using information inputted from the manufacture state acquisition unit.

Claims

1. A manufacture condition setting system which assists an estimation of a dynamic condition that corresponds to a set value of a manufacturing equipment, comprising:

manufacture state acquisition means for acquiring static conditions that include a plurality of items, and a dynamic condition corresponding to the static conditions; and

experience accumulation means for accumulating the static conditions and the dynamic condition in an experience database in association with each other, when the number of manufactured articles manufactured are more than a predetermined number, and are manufactured in a state where the static conditions and the dynamic condition are constant

the static conditions are conditions which are not altered during manufacture of a lot, and the dynamic condition is a condition which is at least one set condition of manufacturing equipment and which is alterable during the manufacture of the lot in order to enhance a product quality, and

wherein the lot corresponds to a plurality of the manufactured articles.

2. A manufacture condition setting system as defined in claim 1, further comprising:

knowledge building means for registering static conditions and dynamic conditions from the experience database, in a knowledge database in which one dynamic condition is held in association with one static condition;

wherein when a plurality of dynamic conditions of different contents are accumulated in association with static conditions of identical contents, in the experience database, said knowledge building means selects one dynamic condition to be registered in the knowledge database, from the plurality of dynamic conditions, or it generates one dynamic condition to be registered in the knowledge database, on the basis of the plurality of dynamic conditions.

3. A manufacture condition setting system as defined in claim 1, wherein in accumulating the static conditions and the dynamic condition in the experience database in association with each other, said experience accumulation means accumulates the static conditions and the dynamic condition in the experience database by further associating reference information for retrieving them.

4. A manufacture condition setting method in a manufacture condition setting system which assists an estimation of a dynamic condition that corresponds to a set value of a manufacturing equipment, comprising the steps of:

allowing manufacture state acquisition means of the manufacture condition setting system to acquire static conditions that include a plurality of items and a dynamic condition corresponding to the static conditions; and

allowing experience accumulation means of the manufacture condition setting system to accumulate the static conditions and the dynamic condition in an experience database in association with each other, when the number of manufactured articles manufactured are more than a predetermined number, and are manufactured in a state where the static conditions and the dynamic condition are constant,

the static conditions are conditions which are not altered during manufacture of a lot, and the dynamic condition is a condition which is at least one set condition of manufacturing equipment and which is alterable during the manufacture of the lot in order to enhance a product quality, and

wherein the lot corresponds to a plurality of the manufactured articles.

5. A manufacture condition setting method as defined in claim 4, further comprising:

registering static conditions and dynamic conditions from the experience database, in a knowledge database in which one dynamic condition is held in association with one static condition;

accumulating a plurality of dynamic conditions of different contents in association with static conditions of identical contents, in the experience database; and

selecting one dynamic condition to be registered in the knowledge database, from the plurality of dynamic conditions, or it generates one dynamic condition to be registered in the knowledge database, on the basis of the plurality of dynamic conditions.