The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2025
Filed:
Jun. 11, 2019
Inventio Ag, Hergiswil, CH;
Raphael Bitzi, Lucerne, CH;
INVENTIO AG, Hergiswil, CH;
Abstract
A method and system for determining the position of an elevator car movable in a shaft of an elevator installation capture images of shaft components and/or shaft equipment serving other functions using an image capture unit on the car. A current image is compared with at least one stored comparison image of the components and/or equipment in a travel direction of the car to determine a current position of the car in the travel direction. If there is no information regarding the position of the car from a previous determination step, for example if the elevator installation is restarted, a current image is compared with all the stored comparison images. Based upon this comparison, one possible position or a plurality of possible positions of the car are determined. These possible positions are checked at least once before one of these positions is adopted as the current position of the car.