Distributed and adaptive smart logic with multi-communication apparatus for reliable safety system shutdown
US7869889B2 · kind B2 · utility
10Cited by
10References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2008 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | May 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05B9/03
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
This invention relates to safety instrumented systems (“SIS”) for monitoring and controlling chemical and other industrial process field devices, and that are responsive to signals for the emergency shutdown of the process or system. The patent will significantly improve the reliability of communications within an emergency shutdown system, reduce unwanted trips, and adapt to process conditions by failing to a safe mode in dynamic conditions that are not considered by prior art logic solvers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.