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US 6,473,720 B1Granted
Method for monitoring product performance
AssigneeGeneral Electric Company
InventorGregory James Hampson
Life of this patent
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Abstract
An exemplary embodiment of the invention is directed to a method for monitoring performance of a product. In a design phase, a design for six sigma process is used to design the product and generate a plurality of design for six sigma elements representing characteristics of the product. The design for six sigma elements are stored in a design for six sigma database. In a service phase, performance of the product is monitored based on the design for six sigma elements stored in the design for six sigma database.
Claims5
A method for monitoring performance of a product comprising:
- a design phase including:
- using a design for six sigma process to design the product and generate a plurality of design for six sigma elements representing characteristics of the product, wherein said design for six sigma elements include a key control parameter, said key control parameter including a lower specified limit, an upper specified limit, and a Z value indicating how frequently the key control parameter exceeds the lower specified limit or the upper specified limit;
- storing said design for six sigma elements in a design for six sigma database;
- and
- a service phase including:
- monitoring performance of the product based on the design for six sigma elements stored in the design for six sigma database, wherein monitoring includes sensing a sensed key control parameter of the product, comparing the sensed key control parameter to the key control parameter, determining if said sensed key control parameter exceeds said lower specified limit or said upper specified limit, computing a sensed Z value for said sensed key control parameter indicating how frequently the sensed key control parameter exceeds the lower specified limit or the upper specified limit, and comparing the Z value to the sensed Z value.
3 more elements
Dependencies are inferred from the claim text.