Method and system for generating maintenance data of an elevator door system
US11167955B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2018 |
| Grant date | Nov 9, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B13/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method for generating maintenance data of an elevator door system includes detecting a first event during closing or opening of a door of the elevator door system and defining a time stamp of the first event, wherein the first event is opening or closing of a safety circuit; detecting at least one second event during said closing or opening of the door of the elevator door system and defining time stamp of the at least one second event; defining a difference value by comparing the time stamp of the first event and the time stamp of the at least one second event; comparing the difference value to previously stored one or more difference values; and generating maintenance data of the elevator door system. A system is provided to perform at least partly the method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.