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Sound positioning device based on microphone array and method

A technology of sound positioning and microphone array, which is applied to measurement devices, re-radiation, instruments, etc., can solve the problems of low accuracy, narrow positioning range and high cost, and achieve the effect of precise positioning, low computing resources and low cost.

Active Publication Date: 2016-05-04
BEIJING HORIZON ROBOTICS TECH RES & DEV CO LTD +1
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Problems solved by technology

[0006] figure 2 and image 3 The sound localization device shown improves the defects of narrow positioning range and low accuracy to a certain extent, but at the same time, due to the need to establish a complex sound recognition algorithm model, it causes the defects of higher computing resource requirements and higher costs

Method used

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  • Sound positioning device based on microphone array and method
  • Sound positioning device based on microphone array and method
  • Sound positioning device based on microphone array and method

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Embodiment Construction

[0029] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for ease of description, only parts related to the invention are shown in the drawings.

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0031] Figure 4 A structural schematic diagram of a microphone array in a sound localization device based on a microphone array provided by an embodiment of the present invention.

[0032] like Figure 4 As shown, in this embodiment, the microphone array-based sound localization device provided...

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Abstract

The invention discloses a sound positioning device based on a microphone array and a method. The method comprises steps of performing paring sound information collection through a pair of microphones of each linear array, transmitting the collected sound information to a sound recognition positioning unit, comparing the signal intensity of the collected sound information, choosing the linear array where a pair of microphones is positioned, wherein the signal intensity of sound collection information collected by the pair of microphones is strongest, performing paired collection to obtain the sound information of the same radial direction through each pair of microphones of the chosen linear array, transmitting the collected sound information to a sound recognition positioning unit, and performing matching on the collected sound information of the same radial direction and the frequency of a sound source in order to position the distance between the sound source and the microphone array so as to position the sound source. The invention adopts the unique microphone array and realizes the accurate positioning of the sound source through the sound source direction determination by various pairs of microphones of different directions and through sound source matching of the plurality of pairs of microphones of the same radial direction.

Description

technical field [0001] The present application relates to the technical field of sound localization, and in particular to a sound localization device and method based on a microphone array. Background technique [0002] At present, the sound localization method based on the dual microphone array has been developed relatively maturely. figure 1 It is a schematic diagram of acquisition and positioning of a sound localization device using a dual microphone array in the prior art. like figure 1 As shown, the microphone array is composed of two microphones 3, which collect the sound information from the sound source 1, and realize the positioning of the sound source 1 from 0 to 180 degrees by collecting the different phase and amplitude information transmitted from the sound source 1 to the two microphones 3 s position. The above-mentioned sound localization method has the advantages of simple method and relatively low requirements on model / computing resources, but it also has...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S11/14
CPCG01S11/14
Inventor 叶久龙梁兵
Owner BEIJING HORIZON ROBOTICS TECH RES & DEV CO LTD
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