Method and apparatus for system state classification
US7065422B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2002 |
| Grant date | Jun 20, 2006 |
| Priority date | — |
| Expiry date | Apr 16, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/024
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method for identifying a state of a manufacturing system includes defining at least one virtual sensor having a value. At least one state descriptor including a plurality of condition terms and a trigger probability is defined. Each condition term includes a function of the value of the virtual sensor. The condition terms are evaluated based on the value to determine a classification probability. The state is identified responsive to the classification probability being greater to or equal to the trigger probability. A manufacturing system including a plurality of tools, at least one virtual sensor, and a state classification unit is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.