Joint approach of out-of-range detection and fault detection for power plant monitoring
US7305317B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2004 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Feb 7, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0235
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A joint approach of out-of-range detection and fault detection for power plant monitoring. The method initially determines whether a sensor is an independent sensor or a dependent sensor. If the sensor is an independent sensor, then an operating range is established for each independent sensor. A reading from each independent sensor is then compared with the operating range that has been established. If the reading is out-of-range, an alarm may be activated. If the reading is not out-of-range, then this reading is used to determine an expected operating range for each dependent sensor. A reading from each dependent sensor is then compared with the predicted operating range. Again, if the reading from the dependent sensor is out of the expected range, an alarm may be sounded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.