Granted Patent B2

US 12,479,696 · App. 17/524,009 · Granted Nov 25, 2025

Inventors: Qiang Chen (Shanghai, CN); Bichun Li (Shanghai, CN); Qirui Wang (Shanghai, CN); Shenhong Wang (Shanghai, CN)

Assignee: OTIS ELEVATOR COMPANY

B66B1/468B66B1/3423B66B2201/4638

Abstract

Claims (24)

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.

Assignments (2)

Priority Claims (1)

Continuity (1)

References Cited (11)