Design of Noise Intensity Monitoring Device for Subway Tunnel
The noise intensity of subway tunnel is an important index to reflect the failure of subway facilities.In order to improve the monitoring efficiency and accuracy of subway tunnel noise intensity,a subway tunnel noise intensity monitoring device is developed.The device consists of a plastic shell,an integrated circuit motherboard,an integrated circuit slave board and a noise transmitter.The integrated circuit motherboard automatically detects the output signal of the noise transmitter,calculates the noise intensity in the tunnel,and sends it to the integrated circuit slave board through the USART interface.The integrated circuit slave board records the noise intensity data in the SD card TXT file,and displays the noise intensity on the liquid crystal module.The design scheme adopts modular design,which has many advantages,such as simple structure,automatic detection and high precision,and can provide engineers with accurate noise intensity data for analysis.
NETL
NSTL
万方数据
维普
