基于ZigBee的智能扬声器系统设计

扬声器是公共场所传播信息的一种有效途径,为使人群听清信息,扬声器的音量一般较大,但当环境安静时扬声器的音量过大会使人产生不适。因此,需要根据人群的大小对扬声器的音量进行控制以减少噪声污染。目前公共场所的扬声器音量还是通过手动调节的,这就显得特别不方便。针对这个问题设计了一种智能扬声器系统,该系统以单片机为控制核心,采用ZigBee通信技术进行信息无线传输。系统实现了扬声器系统音量的自动调节,当人群较大,环境嘈杂时扬声器的音量大一些;当人群较小,环境安静时扬声器的音量小一些,显得更加人性化。

Design of the inteligent speaker system based on ZigBee

Speaker is an effective way of disseminating information in public places,in order to let the crowd get the information,speaker volume is always large,but when the circumstance is quiet,the speaker may course discomfort.Therefore,it is necessary to control the volume according to the size of the crowd to reduce noise pollution.Currently,the speaker volume in public is manually adjusted,which is particularly inconvenient.An intelligent speaker system is designed to solve this problem,the system is controlled by MCU,and it transmits information wireless by ZigBee communication technology.The system achieve the volume＇s automatically adjustment,when the crowd is large,it is noisy and the speaker volume is larger; when the crowd is small,it is quiet and the speaker volume is smaller,thus making it more humane.