Method and system for measuring the stopping accuracy of an elevator car
US7434666B2 · kind B2 · utility
9Cited by
6References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 5, 2007 |
| Grant date | Oct 14, 2008 |
| Priority date | — |
| Expiry date | Mar 5, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B1/40
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a condition monitoring method and a corresponding system for measuring the stopping accuracy of an elevator car. In the invention, a door zone is defined for each floor, a door zone detector is mounted on the elevator car, the elevator car is moved towards a destination floor, acceleration values of the elevator car are measured during its travel towards the destination floor by means of an acceleration sensor attached to the elevator car and the distance of the stopped elevator from the edge of the door zone is calculated on the basis of the measured acceleration values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.