Functional architecture pattern for safety applications
US9235727B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2013 |
| Grant date | Jan 12, 2016 |
| Priority date | — |
| Expiry date | Apr 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/74
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A process for decomposing safety software involves the steps of providing a first software module associated with a first logical unit, providing a second software module associated with a second logical unit, instructing the first software module to implement a first safety goal based on a quality management level, and instructing the second software module to implement a second safety goal based on a safety integrity level, where the second software module uses at least one input and at least one output of the second logical unit to determine if the second safety goal is satisfied. Consequently, the second software module uses a result of the first software module to determine if the first safety goal has been completed, and the second software module uses at least one algorithm to verify an operational status of the first logical unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.