Fault tolerant multipoint data collection system
US5430663A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1992 |
| Grant date | Jul 4, 1995 |
| Priority date | — |
| Expiry date | Dec 11, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/045
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A multipoint data collection system uses multiple parallel data buses connecting a central controller to addressable sensor interfaces to permit any sensor to be connected to a central controller over any one of the data buses. Faults on a data bus may be bypassed, or multiple sensors monitored simultaneously in real time, through the use of the parallel data buses. Digital address signals and analog data are transmitted on the same data bus, distinguished from one another by restricting the voltage range of the analog data to voltages above the voltage corresponding to a digital zero and below the voltage corresponding to a digital one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.