Circuit for monitoring trouble-free state and/or detecting incorrect state of an installation
US6356202B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 26, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jul 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/945
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A circuit is described for monitoring the faultless state and/or for detecting the faulty state of a cable railway or chairlift system, with a plurality of monitoring and detection devices (1) and with at least one control and evaluation unit (2), the monitoring and detection devices (1) being series-connected to one another and to the control and evaluation unit (2) and having the potential to be interrogated with respect to their state, especially with respect to their operating state. To be able to meet safety requirements which are as high as possible and at the same time to require only a small installation space, each monitoring and detection device (1) has several different influence areas (3) and several signal outputs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.