Method and system for redundancy management of distributed and recoverable digital control system
US8260492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 2006 |
| Grant date | Sep 4, 2012 |
| Priority date | — |
| Expiry date | Aug 17, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B9/03
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A method and system for redundancy management is provided for a distributed and recoverable digital control system. The method uses unique redundancy management techniques to achieve recovery and restoration of redundant elements to full operation in an asynchronous environment. The system includes a first computing unit comprising a pair of redundant computational lanes for generating redundant control commands. One or more internal monitors detect data errors in the control commands, and provide a recovery trigger to the first computing unit. A second redundant computing unit provides the same features as the first computing unit. A first actuator control unit is configured to provide blending and monitoring of the control commands from the first and second computing units, and to provide a recovery trigger to each of the first and second computing units. A second actuator control unit provides the same features as the first actuator control unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.