Multidirectional selective noise reduction system and method for space environment

A space environment and noise reduction system technology, applied in the field of noise reduction, can solve the problems of weakening human voice, affecting noise reduction effect, multiple resources and cost, etc.

Active Publication Date: 2020-08-25
苏州双福智能科技有限公司
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] 1. The existing noise reduction processing methods for noise mostly use one-to-one noise reduction. When there are multiple noises in the space at the same time, it needs to spend more resources and costs for noise reduction processing, and multiple noise reduction The noise signals are inde

Method used

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  • Multidirectional selective noise reduction system and method for space environment
  • Multidirectional selective noise reduction system and method for space environment
  • Multidirectional selective noise reduction system and method for space environment

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Embodiment 1

[0092] The noise detection module is a sound sensor, the noise detection module detects the noise signal, and uses the label adding unit to add a label to each noise signal. The label of each noise signal is unique, and the label is the serial number of the noise signal detected by the noise detection module, because it is Multi-point noise signal, in order to avoid the problem of noise signal disorder in the later stage.

[0093] Use the frequency calculation unit to obtain the frequency f of the current noise signal, the noise detection module will feed back the detection information of the noise signal to the timing statistics unit, use the timing statistics unit to record the duration t of the noise signal, and the frequency calculation unit will calculate the noise signal The frequency f of the noise signal and the duration t of the noise signal recorded by the timing statistics unit are transmitted to the noise analysis unit, and the noise analysis unit analyzes the noise...

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Abstract

The invention discloses a multidirectional selective noise reduction system and method for a space environment. The system comprises a noise detection module, a noise processing module, a central control system, a human voice elimination module and a noise reduction module, the noise detection module is used for detecting noise in the environment, the noise processing module is used for processingthe noise detected by the noise detection module, the central control system is used for controlling the whole multi-point noise reduction system, the human voice elimination module is used for identifying and eliminating human voice in noise detected by the noise detection module, and the noise reduction module is used for reducing the noise detected by the noise detection module. The multidirectional selective noise reduction system is scientific, reasonable and safe and convenient to use, the operation that noise reduction processing needs to be conducted on each noise signal is avoided, the step that noise reduction is conducted on the multiple noise signals one by one is omitted, differentiated noise reduction is conducted on the noise signals through the multi-point noise reductionsystem, and the multi-point noise reduction system is more intelligent and user-friendly.

Description

technical field [0001] The invention relates to the technical field of noise reduction, in particular to a multi-directional selective noise reduction system and method for a space environment. Background technique [0002] Noise is the sound made by objects when they move irregularly. Noise will seriously affect people's work and life, and in severe cases will endanger people's health and life safety. Currently, active noise reduction is used to block and offset noise. Compared with passive noise reduction, active noise reduction is to generate reverse sound waves equal to the external noise through the noise reduction system to neutralize the noise, so as to achieve the effect of noise reduction. Passive noise reduction mainly uses sound insulation materials to block external noise. Some noise active noise reduction systems have the following problems when they are used: [0003] 1. The existing noise reduction processing methods for noise mostly use one-to-one noise redu...

Claims

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Application Information

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IPC IPC(8): G10K11/178
CPCG10K11/1781G10K11/17837
Inventor 舒伟伟
Owner 苏州双福智能科技有限公司
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