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A noise source identification method and system

An identification method and technology for noise sources, which are applied in the fields of sound-producing equipment, active noise control, speech analysis, etc., can solve the problems of inability to identify noise sources, complicated operations, and low accuracy, so as to improve the identification efficiency and accuracy, and simplify the operation. Effect

Active Publication Date: 2019-03-12
GREE ELECTRIC APPLIANCES INC
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Problems solved by technology

When a home appliance generates a large or abnormal noise during startup and operation, it is necessary to disassemble the home appliance to find the noise source one by one. It can be seen from this that the existing home appliance noise source identification method is complex in operation and low in accuracy, and cannot Efficiently identify noise sources

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  • A noise source identification method and system
  • A noise source identification method and system
  • A noise source identification method and system

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Embodiment Construction

[0055] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, 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.

[0056] Such as figure 1 As shown, it is a noise source identification method disclosed in Embodiment 1 of the present invention, which includes the following steps:

[0057] S101. Collect the mixed vibration signal when the home appliance is running, and obtain the time-domain waveform of the mixed vibration signal;

[0058] When it is necessary to identify the noise source of the household appliance, during the operation of the household applia...

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Abstract

The invention discloses a noise source identification method. The method includes: collecting a mixed vibration signal during household appliance operation to obtain the time domain waveform of the mixed vibration signal; inputting the time domain waveform of the mixed vibration signal into a pre-built noise mode matching database; performing matching analysis of the time domain waveform of the mixed vibration signal and the noise mode matching database; outputting a matched atom matched with the noise mode matching database; determining a noise source mode according to the matched atom. The method is simple to operate and capable of increasing the identification efficiency and accuracy of noise sources. The invention further discloses a noise source identification system.

Description

technical field [0001] The invention relates to the technical field of noise processing, in particular to a noise source identification method and system. Background technique [0002] At present, in the noise reduction process of home appliances, most of them are structural optimizations for a single component of the home appliance to achieve the purpose of noise reduction. For example, in the noise reduction treatment of range hoods, most of them are optimized for the structure of a single component of the fan assembly. When a home appliance generates a large or abnormal noise during startup and operation, it is necessary to disassemble the home appliance to find the noise source one by one. It can be seen from this that the existing home appliance noise source identification method is complex in operation and low in accuracy, and cannot Efficiently identify noise sources. Contents of the invention [0003] The invention provides a noise source identification method, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G10K11/36G10L21/0224G10L21/028G06F16/245
CPCG06F16/245G10K11/36G10K2210/109G10L21/0224G10L21/028
Inventor 莫代一丁泺火李忠堂王宏胡小帝张建平
Owner GREE ELECTRIC APPLIANCES INC
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