Robot sound localization method and robot

A robot and sound source technology, applied in the field of signal processing, can solve the problems of inability to accurately locate the sound source, inability to determine the front or rear of the sound source, etc.

Inactive Publication Date: 2018-07-06
GEER TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, existing robots based on linear microphone arrays for sound source localization sometimes cannot determine whether the sound source is located in front of or behind the intelligent robot, resulting in the inability to accurately locate the sound source

Method used

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  • Robot sound localization method and robot
  • Robot sound localization method and robot
  • Robot sound localization method and robot

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0030] In the prior art, a robot based on a linear microphone array for sound source localization sometimes cannot determine whether the sound source is located in front of or behind the robot, resulting in the problem that the sound source cannot be accurately located. The embodiment of the present application provides a solution: set up a two-dimens...

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Abstract

The embodiment of the application provides a robot sound localization method and a robot. A two-dimensional microphone array is arranged on the robot, and the method comprises the following steps: calculating a first sound energy value obtained by a first microphone according sound data collected by the first microphone and coming from a target sound source; calculating a second sound energy valueobtained by a second microphone according to sound data collected by the second microphone and coming from the target sound source; and determining the orientation interval of the target sound sourcerelative to the robot according to the energy ratio of the first sound energy value and the second sound energy value and the positional relationship between the first and second microphones. In theembodiment of the application, whether the target sound source is located in front of or at the back of the robot can be judged, and further the true position of the target sound source is accuratelylocalized.

Description

technical field [0001] The present application relates to the technical field of signal processing, and in particular to a method for localizing a sound source of a robot and a robot. Background technique [0002] Sound source localization based on microphone arrays has become a hot topic in the field of speech signal processing in recent years. This technology has been applied in video conferencing, intelligent robots and other scenarios. At present, sound source localization is mainly realized by a circular microphone array or a linear microphone array. Among them, the shape of the microphone array can be selected according to the shape of the robot. For example, a circular microphone array can be used for sound source localization for a low-bodied household intelligent robot, while a linear microphone array can be used for sound source localization for a tall intelligent robot. [0003] For a tall intelligent robot, the linear microphone array is generally arranged in t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/20
CPCG01S5/20
Inventor 葛俊
Owner GEER TECH CO LTD
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