Device in a process system for detecting events
US6397114B1 · kind B1 · utility
180Cited by
164References
52Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 3, 1999 |
| Grant date | May 28, 2002 |
| Priority date | — |
| Expiry date | May 3, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B23/0278
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A process device couples to a process control loop. The process device receives process signals. A memory in the process device contains a nominal parameter value and a rule. Computing circuitry calculates a statistical parameter of the process signal and operates on the statistical parameter and the stored nominal value based upon the stored rule and responsively provides an event output based upon the operation. Output circuitry provides an output in response to the event output
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.