US 6,671,568 B2 · Method and assistance system for supporting work planning for a production process

Abstract

A method and an assistance system for supporting a multistage decision process for producing a work plan for a reduction process is provided. The decision process proceeds from a formulation of tasks, which uniquely characterizes the initial situation on which the decision process is based. In particular, the decision process proceeds from a feature-based CAD model of the workpiece to be produced. The decision process also includes individual decisions, which are built on one another hierarchically and are combined with one another in the form of a decision tree. In order to support the production of a work plan, use is made of an assistance system which is coupled to a database in which the individual decisions taken in the past are stored as cases, those cases which correspond to individual decisions building on one another hierarchically being combined with one another in a relational fashion. The assistance system also makes available for each individual decision a user-defined similarity measure with the aid of which it is evaluated how well a case stored in the database in relation to this individual decision is suitable as a solution for this individual decision. Specific rules are used to adapt this case to the current individual decision.

Claims9

Dependent claims

A method of supporting a multistage decision process for computer-aided production of a work plan for a production process used to implement technical features on a workpiece, the method comprising the acts of:

automatically classifying each desired feature to be implemented on the workpiece with reference to defined properties;
selecting from a relational case database reference cases having properties similar to the desired feature in accordance with a previously defined similarity measure;
automatically evaluating the reference cases in accordance with the similarity measure in presenting to a user the reference cases for selection together with production operations connected in a respective reference case to a production of the desired feature;
deciding upon one of the proposed reference cases or interactively storing a new precedent as a new reference case;
in relation to each production operation, automatically running through a hierarchical decision tree in accordance with decisions made by the user in which, starting from production operations associated with this selection, suitable cases being selected from the relational case database at each decision stage of the decision tree, said suitable cases being evaluated in accordance with the similarity measure corresponding to the relevant individual decision presented to the user;
and
storing each individual decision made by the user in the relational case database.

4 more elements

Dependencies are inferred from the claim text.

Method and assistance system for supporting work planning for a production process

Life of this patent

Method and assistance system for supporting work planning for a production process

Life of this patent

Abstract

Claims9