Terminal Design of Embedded Mine Broadcast Device

In order to solve problems of poor voice quality,poor reliability and single function in mine broadcasting system,a design scheme of embedded mine broadcast device was proposed.The scheme uses embedded techniques and C programming language.Software and hardware design of the device were introduced in detail,and flowchart of hardware of VS1003B and the RS-485 were given.In mine actual running,the results showed that the device has good voice quality,high reliability and comprehensive functions.