Title:
ACTIVE NOISE REDUCTION DEVICE, INDOOR ELECTRICAL APPLIANCE SYSTEM AND ACTIVE NOISE REDUCTION METHOD
Document Type and Number:
WIPO Patent Application WO/2021/212877
Kind Code:
A1
Abstract:
An active noise reduction device, an indoor electrical appliance system and an active noise reduction method. The active noise reduction device comprises: an environmental information acquisition assembly (10) used for acquiring environmental information of a room in which an indoor electrical appliance is located; a first noise collector (12) used for collecting noise generated by the indoor electrical appliance so as to generate corresponding noise information; a controller (14) which is coupled to the environmental information acquisition assembly and the first noise collector so as to obtain resonance frequency information of the room according to the environmental information of the room, and further generate corresponding noise reduction information according to the resonance frequency information and the noise information; and a first loudspeaker (16) which is coupled to the controller for receiving the noise reduction information, and sending out a corresponding noise reduction wave according to the noise reduction information so as to reduce the noise of the indoor electrical appliance. By means of the foregoing manner, the resonance frequency information of the room in which the indoor electrical appliance is located may be comprehensively taken into consideration so as to improve the noise reduction effect.
Inventors:
ZHANG SU (CN)
Application Number:
PCT/CN2020/136219
Publication Date:
October 28, 2021
Filing Date:
December 14, 2020
Export Citation:
Assignee:
GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENTER CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
F24C15/20; G10K11/178
Foreign References:
| CN108167910A | 2018-06-15 | |||
| CN109246573A | 2019-01-18 | |||
| CN103383843A | 2013-11-06 | |||
| CN110017260A | 2019-07-16 | |||
| US20110274283A1 | 2011-11-10 |
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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