Method and device for monitoring an elevator system
US12139374B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 12, 2019 |
| Grant date | Nov 12, 2024 |
| Priority date | — |
| Expiry date | Sep 13, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/143
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A monitoring device (20, 22), which is configured for monitoring movement of at least one component (6, 12) of an elevator system (2), includes an acceleration sensor (24) and a controller (26). The acceleration sensor (24) is configured for detecting accelerations (g, g′) of the at least one component (6, 12) and providing a corresponding acceleration signal (28, 30). The controller (26) is configured for determining peaks (28a, 28b, 30a, 30b) having positive or negative signs in the detected acceleration signal (28, 30); determining the signs of the detected peaks (28a, 28b, 30a, 30b); and determining that the moving direction of the at least one component (6, 12) has changed when two subsequent peaks (28a, 28b, 30a, 30b) of the acceleration signal (28, 30) having the same sign are detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.