Sensor fusion of acceleration sensor and air pressure sensor information to estimate elevator floor level and position
US10822199B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Mar 28, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01W1/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of monitoring a conveyance apparatus within a conveyance system including: detecting a first atmospheric air pressure within the conveyance system proximate the conveyance apparatus; detecting a second atmospheric air pressure within the conveyance system proximate the conveyance apparatus; determining a change in atmospheric air pressure proximate the conveyance apparatus in response to the first atmospheric air pressure and the second atmospheric air pressure within the conveyance system; and determining at least one of a location of the conveyance apparatus and a direction of motion of the conveyance apparatus within the conveyance system in response to at least the first atmospheric air pressure and the second atmospheric air pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.