Environment identification method and device

A technology for environmental recognition and identification modules, which is used in measuring devices, instruments, and analysis of solids using sonic/ultrasonic/infrasonic waves. It can solve the problems of smart speaker wake-up and command errors, and achieve the best wake-up and recognition effect.

Active Publication Date: 2019-12-31
BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Problems solved by technology

Take the scene where the smart speaker is very close to the wall as an example. When the smart speaker is close to the wall or even has obstacles on three sides, the echo caused by the wall and other obstacles will affect the smart speaker's judgment on the location and energy of the sound source, and then guide the smart speaker. Wake-up and command errors

Method used

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  • Environment identification method and device
  • Environment identification method and device
  • Environment identification method and device

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Embodiment Construction

[0048] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0049] In a home environment, it is likely that the speaker will be placed against a wall, on a bookshelf, etc., close to the wall or other objects. Take the scene where the smart speaker is very close to the wall as an example. When the smart speaker is close to the wall or even has obstacles on three sides, the echo caused by the wall and other obstacles will affect the smart speaker's judgmen...

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Abstract

The disclosure relates to the field of intelligent terminals, particularly to an environment identification method and device, thereby solving a problem that an intelligent sound box is affected by anobstruction to cause a voice recognition error. The method comprises the following steps: sending a detection sound wave to at least one direction; receiving reflected sound waves reflected by the detection sound waves after arrival of the detection sound waves at a reflection interface in all directions; and analyzing the reflected sound waves and identifying a surrounding shelter. The environment identification method and device are suitable for the intelligent equipment, and automatic identification of the shielding object around the equipment is realized.

Description

technical field [0001] The present disclosure relates to the field of smart terminals, and in particular to an environment recognition method and device suitable for smart speakers. Background technique [0002] Smart speakers interact with users through voice commands. Smart speakers generally have multiple built-in microphones, through omnidirectional radio, according to the change of sound energy, calculate the location of the sound source; and then use the directional amplified radio power to obtain a clearer sound for identification. [0003] However, in a home environment, it is likely that the speaker will be placed against the wall, on a bookshelf, etc., close to the wall or other objects. Take the scene where the smart speaker is very close to the wall as an example. When the smart speaker is close to the wall or even has obstacles on three sides, the echo caused by the wall and other obstacles will affect the smart speaker's judgment on the location and energy of ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S15/06G01S15/08G01S7/539G01N29/04G01N29/44
CPCG01N29/04G01N29/44G01N2291/0289G01N2291/103G01S7/539G01S15/06G01S15/08
Inventor 陈勇
Owner BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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