System for creating a fault diagnosis on production machines and application of the system on textile machines
AssigneeZellweger Luwa AG
InventorRobert Hoeller
Life of this patent
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Abstract
The creation of fault diagnosis takes place using a knowledge-based evaluation of signals which signal the quality of the products produced, for example using spectrograms obtained in the investigation of parameters of textile fiber or filament structures. A first evaluation unit (NA) is provided for the detection of characteristic deviations of the spectrograms, which unit generates a so-called fault descriptor (SD) for each such deviation. A second evaluation unit (WA) uses a knowledge base (WB) to determine possible fault causes for each fault descriptor.
Claims15
A system for diagnosing a fault on at least one textile machine for the production of fiber or filament structures, comprising:
- means for investigating parameters of the fiber or filament structures and generating spectrograms representing the unevenness of the products produced by said machine,
- a first evaluation unit for the detection of characteristic deviations of the spectrograms, which unit generates a fault descriptor for each such deviation,
- a knowledge base containing a description of machine parts belonging to said textile machine, in the form of a component hierarchy which is represented by a tree structure and in which each machine part is described by a node in the tree structure,
- software units for access to said knowledge base,
- a user interface for enabling users to interact with said system, and,
- a second evaluation unit which uses the knowledge base to determine possible fault causes for a fault descriptor.
Dependencies are inferred from the claim text.