Voting node for a distributed control system
US5796935A · kind A · utility
20Cited by
35References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 20, 1995 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Jul 20, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D1/0077
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An intelligent voting node for a multiple node, fault tolerant, distributed intelligence control system having a plurality of optically isolated relays for connecting a power source to a load device and providing total optical isolation for processors of the voting node from faults occurring in the power source. The voting node includes triple redundant two-out-of-three voters each coupled to one of three redundant digital communication and control processors within the node. Built-in-self-test capability using optically isolated receiver devices provides for avoidance of latent failures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.