The elevator car noise reduction system comprises a sensing module, an error analysis module, a control module and a noise elimination module, the sensing module comprises a plurality of gravity sensors, and the gravity sensors are installed at different positions of an elevator bottom plate; through cooperation of the sensing module, the error analysis module, the control module and the noise elimination module, during noise reduction, the position relation of people entering the elevator is sensed through the gravity sensor, and targeted sound waves are sent according to the position relation of the people; the control module controls the noise elimination module to emit noise elimination audio through the loudspeaker according to the audio value required for noise elimination and obtained through cooperation of the induction module and the error analysis module, so that noise generated during operation of the elevator is counteracted, part of the noise value can be reduced through the silencer, the noise elimination audio is larger than the audio generated by the noise all the time, and the noise elimination efficiency is improved. Therefore, active noise reduction is carried out.

    本发明公开了一种电梯轿厢降噪方法及系统,包括感应模块、误差分析模块、控制模块和消声模块,所述感应模块包括多个重力传感器,多个所述重力传感器安装在电梯底板的不同位置;本发明通过感应模块、误差分析模块、控制模块和消声模块的配合,在降噪时,通过重力传感器来感应进入电梯内人员的位置关系,针对人员的位置关系发送针对性的声波,控制模块根据感应模块和误差分析模块配合得出的消音所需的音频值,控制消声模块进行通过扬声器发出消音的音频,从而抵消电梯运行时产生的噪音,且利用消声器还可以减少部分的噪音值,使消音音频始终大于噪音产生的音频,从而进行主动降噪。


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    Title :

    Elevator car noise reduction method and system


    Additional title:

    一种电梯轿厢降噪方法及系统


    Contributors:
    GUO HUI (author) / SUN ZHISHAN (author) / LI XIANGJUN (author) / GAO CHUAN (author)

    Publication date :

    2022-09-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B66B Aufzüge , ELEVATORS



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