The invention provides a noise reduction system and a vacuum excrement collector, relates to the technical field of vacuum excrement collectors, and aims to solve the technical problem of poor noise reduction effect of a noise reduction system. The noise reduction system comprises a trigger switch, a signal processor and a loudspeaker, the trigger switch is connected with a valve used for controlling the vacuum excrement collector to be opened or closed, and when the trigger switch is opened, the trigger switch sends out a first signal; the signal processor comprises an anti-phase signal generator in signal connection with the trigger switch, and after the anti-phase signal generator receives the first signal, the anti-phase signal generator sends out a first anti-phase signal after a first preset time; the loudspeaker is in signal connection with the signal processor, and when the loudspeaker receives the first anti-phase signal, the loudspeaker emits a first anti-phase sound wave which is opposite to the noise phase emitted by the vacuum excrement collector during pollution discharge. The noise reduction system and the vacuum excrement collector are used for improving the noise reduction effect of the noise reduction system.
本发明提供一种降噪系统及真空集便器,涉及真空集便器技术领域,用于解决降噪系统降噪效果差的技术问题。该降噪系统包括:触发开关、信号处理器以及扬声器,触发开关与用于控制真空集便器的开启或关闭的阀门连接,当触发开关开启时,触发开关发出第一信号;信号处理器包括与触发开关信号连接的反相信号发生器,反相信号发生器接收到第一信号后,经过第一预设时间,反相信号发生器发出第一反相信号;扬声器与信号处理器信号连接,当扬声器接收到第一反相信号时,扬声器发出与真空集便器排污时发出的噪声相位相反的第一反相声波。本发明提供的降噪系统及真空集便器用于提高降噪系统的降噪效果。
Noise reduction system and vacuum excrement collector
降噪系统及真空集便器
2022-03-18
Patent
Elektronische Ressource
Chinesisch
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