Redundant sensor system with fault detection and mitigation
US10567854B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2018 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Nov 30, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2213/13167
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A system includes first and second modules, each having a sensor and a processing circuit. First and second fault detection circuits are coupled with respective first and second modules. Each of the first and second fault detection circuits determines from a processed signal output from a corresponding module whether the module is faulted, prevents output of the processed signal when the module is faulted, and enables output of the processed signal when the module is not faulted. A signal processing unit combines the processed signals from the first and second modules to produce a first output signal when neither of the first and second modules is faulted, and the signal processing unit produces a second output signal by utilizing only the processed signal from a non-faulted one of the first and second modules when the other of the first and second modules is faulted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.