Elevator system
US10087048B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 12, 2017 |
| Grant date | Oct 2, 2018 |
| Priority date | — |
| Expiry date | Mar 9, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/73
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In an elevator system according to one embodiment, an imaging unit performs an imaging operation to obtain an image of a hall, the doorway of a car and the vicinity of the doorway, a measuring unit measures an exposure amount of a specified detection area in the image, and a controller adjusts an exposure adjustment parameter of the imaging unit in accordance with the measured exposure amount. While the door is being opened, as the detection area, the controller specifies a detection area in the interior of the car, and notifies the measuring unit of the specified detection area, and while the door is being closed, as the detection area, the controller specifies a detection area in the hall, and notifies the measuring unit as the specified detection area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.