Calibration method and system for virtual buttons, elevator and storage medium

Patent metadata

Field	Value
Publication number	US-12479696-B2
Application number	US-202117524009-A
Country	US
Kind code	B2
Filing date	Nov 11, 2021
Priority date	Mar 4, 2021
Publication date	Nov 25, 2025
Grant date	Nov 25, 2025

Abstract

A calibration method and system for virtual buttons, an elevator, and a storage medium. The method includes: receiving a first designation regarding a layout of the virtual buttons in a virtual keypad zone; receiving a second designation regarding a number of the virtual buttons; and determining a position of each of the virtual buttons in the virtual keypad zone according to the first designation and the second designation.

First claim

What is claimed is:

1 . A calibration method for virtual buttons, comprising:
receiving a first designation regarding a layout of the virtual buttons in a virtual keypad zone; receiving a second designation regarding a number of the virtual buttons, wherein the second designation comprises a designation of two adjacent virtual buttons in any column of the virtual buttons and/or a designation of two adjacent virtual buttons in any row of the virtual buttons; and determining a position of each of the virtual buttons in the virtual keypad zone according to the first designation and the second designation.

2 . The method of claim 1 , wherein the virtual keypad zone comprising a rectangular keypad zone, and the first designation comprising a third designation for the layout of the virtual buttons in the rectangular keypad zone.

3 . The method of claim 2 , wherein the third designation comprising at least a designation for vertex virtual buttons in the rectangular keypad zone.

4 . The method of claim 2 , wherein the virtual keypad zone further comprising a derived keypad zone in addition to the rectangular keypad zone, and the first designation further comprising a fourth designation for the layout of the virtual buttons in the derived keypad zone.

5 . The method of claim 4 , wherein the fourth designation comprising a designation for each of the virtual buttons in the derived keypad zone.

6 . The method of claim 1 , wherein the first designation is performed in accordance with the order of floor numbers.

7 . The method of claim 1 , wherein determining the position of each of the virtual buttons in the virtual keypad zone comprising:
determining midpoints of the corresponding virtual buttons of the first designation according to the first designation; determining a midpoint of each of the virtual buttons according to the second designation; and estimating a position of each of the virtual buttons according to the midpoints of the virtual buttons.

8 . A computer-readable storage medium having instructions stored therein, wherein the instructions, when executed by a processor, cause the processor to execute the method of claim 1 .

9 . A calibration system for virtual buttons, comprising:
a camera configured to collect depth images; a memory configured to store instructions; a processor configured to execute the instructions to perform the following operations: controlling the camera to receive a first designation regarding a layout of the virtual buttons in a virtual keypad zone; controlling the camera to receive a second designation regarding a number of the virtual buttons in the virtual keypad zone, wherein the second designation comprises a designation of two adjacent virtual buttons in any column of the virtual buttons and/or a designation of two adjacent virtual buttons in any row of the virtual buttons; and determining a position of each of the virtual buttons in the virtual keypad zone according to the first designation and the second designation.

10 . An elevator comprising: the computer-readable storage medium of claim 8 .

11 . An elevator comprising virtual buttons, wherein the virtual buttons are calibrated in accordance with the calibration method for virtual buttons of claim 1 .

12 . The elevator of claim 11 , further comprising a camera collecting depth images, which is configured to collect user's operations of the virtual buttons.

Assignees

• Otis Elevator Co

Inventors

• Chen Qiang
• Li Bichun
• Wang Qirui
• Wang Shenhong

Classifications

• B66B2201/4638

  Wherein the call is registered without making physical contact with the elevator system · CPC title

• B66B1/3423

  Control system configuration, i.e. lay-out · CPC title

• G06F3/0425

  using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected (tracking a projected light spot to determine a position on a display surface G06F3/0386) · CPC title

• B66B1/468 Primary

  Call registering systems · CPC title

• B66B1/461

  characterised by their shape or profile · CPC title