Method of monitoring state parameters in a switching device, and associated device
US6400547B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Apr 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY04S10/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of monitoring state parameters in a switching device records and evaluates sensor signals of sensors which are susceptible to an interference caused by external electrical or magnetic fields. A temporal sequence of the sensor signals is evaluated by determining whether the sensor signals are disturbed or undisturbed. The interference in the sensor signals is suppressed by generating evaluation signals which correspond to the undisturbed signals. A device for monitoring state parameters of a switching device includes sensors for recording sensor signals and includes a passive interference suppression device and an active interference suppression device for suppressing the interference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.