Process control with unreliable communications
US7620460B2 · kind B2 · utility
15Cited by
8References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 4, 2006 |
| Grant date | Nov 17, 2009 |
| Priority date | — |
| Expiry date | Feb 14, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B2219/34413
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
Disclosed are methods and devices for controlling a process with a control signal. Iterations of a control routine are implemented to generate the control signal, and when an indication of a response to the control signal is unavailable, a feedback contribution to the control signal is maintained over one or more of the iterations of the control routine. The feedback contribution is then modified upon receiving the response indication, in which the feedback contribution is determined in accordance with an elapsed time between the received response indication and a previous communication of the response indication.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.