澳大利亚悉尼大学的研究人员设计出一种可自动开闭窗户的防噪声装置。这套装置是由一台噪声识别电脑、一个微型麦克风、一台自动开闭仪组成,微型麦克风安装在窗户外面,专门用来监听噪声,一旦噪声出现它便立即向电脑报警,电脑再对噪声分贝进行测定,当噪声分贝超过安全标准时,电脑便向自动开闭仪发出指令,自动关闭窗尸。当噪声远离或消失后,电脑又发出指令,自动开启窗 Researchers at the University of Sydney in Australia have devised an anti-noise device that automatically opens and closes windows. The device is composed of a noise-recognition computer, a miniature microphone and an automatic shut-off device. The miniature microphone is installed outside the window and is designed to monitor the noise. Once the noise occurs, it will alert the computer immediately. Decibel determination, when the noise decibel exceeds the safety standards, the computer will automatically send instructions to shut down automatically shut down the window dead. When the noise away or disappear, the computer issued a directive automatically open the window