Calibration control method for speaker, apparatus, device, and readable storage medium

Patent metadata

Field	Value
Publication number	US-12596016-B2
Application number	US-202418639044-A
Country	US
Kind code	B2
Filing date	Apr 18, 2024
Priority date	Nov 23, 2021
Publication date	Apr 7, 2026
Grant date	Apr 7, 2026

Abstract

Disclosed are a calibration control method for a speaker, an apparatus, a device, and a readable storage medium. The calibration control method for the speaker includes: obtaining real-time inertial measurement unit (IMU) data of the speaker, and determining whether the speaker is subject to an external force interference according to the real-time IMU data; in response to determining that the speaker is subject to the external force interference, detecting a current attitude inclination of the speaker when the external force interference is eliminated, and comparing the current attitude inclination with a pre-stored reference attitude inclination to obtain an inclination change value; and in response to the inclination change value being greater than a preset inclination threshold, performing a rotation calibration operation on the IMU module in the speaker.

First claim

What is claimed is:

1 . A calibration control method for a speaker, comprising:
obtaining real-time inertial measurement unit (IMU) data of the speaker, and determining whether the speaker is subject to an external force interference according to the real-time IMU data; in response to determining that the speaker is subject to the external force interference, detecting a current attitude inclination of the speaker when the external force interference is eliminated, and comparing the current attitude inclination with a pre-stored reference attitude inclination to obtain an inclination change value; and in response to the inclination change value being greater than a preset inclination threshold, performing a rotation calibration operation on the IMU module in the speaker.

2 . The calibration control method for the speaker according to claim 1 , wherein after the comparing the current attitude inclination with the pre-stored reference attitude inclination to obtain the inclination change value, the method further comprises:
in response to the inclination change value being less than or equal to the preset inclination threshold, determining whether a position change value of the speaker is greater than a preset displacement threshold; and in response to the position change value of the speaker being greater than the preset displacement threshold, performing the rotation calibration operation on the IMU module in the speaker.

3 . The calibration control method for the speaker according to claim 2 , wherein a calibration reference point is provided within a rotation angle range between the calibration starting point and the calibration ending point, and an actual rotation angle value of the speaker rotating from the calibration starting point to the calibration reference point is configured to be the reference rotation angle value, the determining whether the position change value of the speaker is greater than the preset displacement threshold comprises:
controlling the speaker to be rotated to the calibration reference point, and controlling the speaker to collect a current environment image; comparing the current environment image with a pre-stored reference environment image to obtain an image deviation value; and determining whether the position change value of the speaker is greater than the preset displacement threshold based on the image deviation value.

4 . The calibration control method for the speaker according to claim 2 , wherein the determining whether the position change value of the speaker is greater than the preset displacement threshold comprises:
obtaining an intensity value corresponding to the external force interference, and detecting whether the intensity value is greater than a preset intensity threshold; and based on a detection result of whether the intensity value is greater than the preset intensity threshold, determining whether the position change value of the speaker is greater than the preset displacement threshold.

5 . The calibration control method for the speaker according to claim 1 , wherein after the detecting the current attitude inclination of the speaker when the external force interference is eliminated, the method comprises:
determining whether the current attitude inclination is greater than a predetermined inclination safety warning threshold; in response to the current attitude inclination being greater than the inclination safety warning threshold, generating a warning prompt that “the attitude inclination of the speaker is too large”; and in response to the current attitude inclination being less than or equal to the inclination safety warning threshold, comparing the current attitude inclination with the pre-stored reference attitude inclination to obtain the inclination change value.

6 . The calibration control method for the speaker according to claim 1 , wherein the performing the rotation calibration operation on the IMU module in the speaker comprises:
determining a calibration starting point and a calibration ending point of the speaker; controlling the speaker to rotate from the calibration starting point to the calibration ending point, and during a rotation process of the speaker, collecting an actual rotation angle value of the speaker and mapping IMU data corresponding to the actual rotation angle value, wherein the actual rotation angle value is a rotation angle value calculated from the calibration starting point that the speaker that has been rotated; and calibrating the IMU module according to the actual rotation angle value and the mapping IMU data.

7 . The calibration control method for the speaker according to claim 6 , wherein the calibrating the IMU module according to the actual rotation angle value and the mapping IMU data comprises:
determining a monitoring rotation angle value corresponding to the actual rotation angle value according to the mapping IMU data; calculating an angle monitoring error of the IMU module according to the actual rotation angle value and the monitoring rotation angle value; and calibrating the IMU module according to the angle monitoring error.

8 . A calibration control apparatus for a speaker, comprising:
a collection module, configured to obtain real-time inertial measurement unit (IMU) data of the speaker, and determine whether the speaker is subject to an external force interference according to the real-time IMU data; an analysis module, configured to in response to determining that the speaker is subject to the external force interference, detect a current attitude inclination of the speaker when the external force interference is eliminated, and compare the current attitude inclination with a pre-stored reference attitude inclination to obtain an inclination change value; and a calibration module, configured to in response to the inclination change value being greater than a preset inclination threshold, perform a rotation calibration operation on the IMU module in the speaker.

9 . A calibration control device for a speaker, comprising: a memory, a processor, and a calibration control program stored in the memory and executable on the processor, when the calibration control program is executed by the processor, the calibration control method for the speaker according to claim 1 is implemented.

10 . A non-transitory computer-readable storage medium, wherein a calibration control program is stored on the non-transitory computer-readable storage medium, and when the calibration control program is executed by a processor, the calibration control method for the speaker according to claim 1 is implemented.

Assignees

• Goertek Inc

Inventors

• Lv Tingchang

Classifications

• H04R29/001 Primary

  for loudspeakers (H04R29/007 takes precedence) · CPC title

• G01C9/08

  Means for compensating acceleration forces due to movement of instrument · CPC title

• G01C25/005 Primary

  initial alignment, calibration or starting-up of inertial devices · CPC title