Health monitoring
US6928370B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 5, 2001 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Feb 9, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2693
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for monitoring the health of a system comprises performing at each of a plurality of times the steps of:constructing a condition signature from a plurality of condition indicators including (a) a plurality of vibration measurements acquired from the system or (b) one or more vibration measurements and one or more performance parameter measurements acquired from the system;predicting a normal signature from a model defining one or more inter-dependencies between said condition indicators, the normal signature corresponding to the condition signature for a healthy system;comparing the condition signature with the normal signature; andregistering an event if the condition signature differs from the normal signature by more than a predetermined threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.