Elevator monitoring device with varying wireless transmission power based on elevator car position
US12421079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2020 |
| Grant date | Sep 23, 2025 |
| Priority date | — |
| Expiry date | Jul 25, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W52/283
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An illustrative example embodiment of a device for communicating information regarding an elevator car that moves along a vertical path includes at least one sensing portion configured to be supported on the elevator car and to sense at least one characteristic of the elevator car. A transmitter is configured to transmit a wirelessly communicated output indicating at least one condition based on the sensed characteristic. The transmitter is configured to use a first transmit power when the device is at a first location along the vertical path and to use a second, different transmit power when the device is at a second, different location along the vertical path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.