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Novel four-microphone industrial noise source positioning system

A four-microphone, industrial noise technology, applied in the field of microphones, can solve problems such as increasing system hardware costs and reducing system engineering convenience, achieve high real-time performance and compatibility, improve engineering convenience and applicability, and provide possibilities Effect

Pending Publication Date: 2022-01-14
武汉声与声科技合伙企业(有限合伙)
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a novel four-microphone industrial noise source localization system to solve the problem that the algorithm proposed in the above-mentioned background technology often needs to be based on a large-scale multi-element microphone array and a high-performance processor. Increase the hardware cost of the system while reducing the engineering convenience of the system

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  • Novel four-microphone industrial noise source positioning system

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Embodiment Construction

[0036] The following clearly and completely describes the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] see Figure 1-3 , the present invention provides a technical solution of a novel four-microphone industrial noise source location system:

[0038] according to Figure 1-3 As shown, it includes four-element microphone array, three wide-angle cameras, multi-channel acquisition and conditioning equipment, cloud, GCC module, and user client. Microphones are fixedly installed at the four corners of the multi-channel acquisition and conditioning equipment. The four microphones adopt Tetrahedral space topology, three wide-angle c...

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Abstract

The invention discloses a novel four-microphone industrial noise source positioning system. The system comprises a quaternary microphone array, three wide-angle cameras, a multi-channel acquisition conditioning device, a cloud, a GCC module and a user client, wherein microphones are fixedly mounted at four corners of the multi-channel acquisition conditioning device. According to the sound source positioning system, a device-cloud-client Internet of Things architecture is adopted, data collected by the quaternary microphone array and data collected by the three wide-angle lenses are all transmitted to the cloud and are processed respectively, three pictures shot at the same time are processed into a panorama at the cloud, and audio signals are directly uploaded to the client and are sent to a positioning module for processing, and a scanning interval is determined through pre-sound source positioning, then precise positioning is performed by using a precise sound source positioning algorithm, and finally a positioning result is combined with a panorama to form a panoramic sound image, and the panoramic sound image is uploaded to a client in real time, so a user can intuitively judge the working condition of equipment conveniently.

Description

technical field [0001] The invention relates to a noise source locating system, in particular to a novel four-microphone industrial noise source locating system, which belongs to the technical field of microphones. Background technique [0002] The existing technology is mainly based on multi-microphone microphone arrays, and the multi-channel signal acquisition card is equipped with FPGA or CPU to perform signal preprocessing and beamforming on the device side, and to perform traversal search within a certain spatial range, so as to realize sound source localization , this type of method can usually achieve better results, but this type of algorithm often needs to be based on a large-scale multi-element microphone array and a high-performance processor, which greatly increases the hardware cost of the system and reduces the cost of the system. Engineering convenience. Contents of the invention [0003] The purpose of the present invention is to provide a novel four-micro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S5/20G10L21/0216
CPCG01S5/20G10L21/0216G10L2021/02166
Inventor 章林柯余永生杜旭浩
Owner 武汉声与声科技合伙企业(有限合伙)
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