Multi-scene intelligent anti-noise earphones based on magnetic foam

Abstract

The invention discloses a multi-scene intelligent anti-noise headset based on magnetic foam. The anti-noise headset comprises an earmuff, as well as a first measurement component, a noise reduction component and a control component arranged on the earmuff. The environmental noise sound pressure level in an environment of a user and a noise sound pressure level in the earmuff are detected through the first measurement component and the second measurement component, and the two noise sound pressure levels are sent to the control component. After the control component performs comparative analysis on a detection result, excitation current is regulated intelligently according to the comparison result, and the sound absorption and noise reduction effect of the magnetic foam of an executing element is changed, so that the noise absorption and noise reduction requirements of high and low-frequency environmental noise in different scenes are met; the comfort and quietness of rest, study and work environments of people are ensured; and the possibility that high decibel noise causes harm to the hearing of people is lowered.

Description

technical field [0001] The invention relates to a multi-scene intelligent anti-noise earphone based on magnetic foam. Background technique [0002] With the rapid development of modern industry and transportation, the problem of noise pollution in people's daily life environment has become increasingly prominent. Especially the environmental noise of transportation, industrial production, building construction and living and commercial areas will cause damage to people's hearing all the time. Long-term exposure to noise environment may even cause insomnia, memory loss, inability to concentrate, nervous system disorders and other physiological problems. health problems. Then when people need a quiet environment to rest, study and work, it is particularly important to intelligently absorb and reduce environmental noise in different scenes. [0003] Magnetic foam is a smart material made from polymer foam filled with micron-sized magnetic particles. During the preparation pr...

AI Technical Summary

Problems solved by technology

Compared with traditional anti-noise earphones, earmuffs and earplugs, anti-noise earphones made of magnetic foam have the advantages of stable sound absorption and noise reduction effects in multiple scenes and real-time intelligent control. The thickness of the earplugs is relatively large, and the earplugs are inserted into the external auditory canal to infect the external auditory canal. There are few applicable scenarios, and the shortcomings of passive sound absorption and noise reduction

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