Broadcast used in mine and remote controlsystem based on FSK and DTMF

CHEN Dongdong, TIAN Shijun, GU Minming

(College of Mechanical Engineering and Automation,Zhejiang SciTech University,Hangzhou 310018,China)

Abstract: In order to meet the requirement of the broadcast used in  mine and remote control,the remote control system which uses the FSK signal decoding technology as the core of the remote control system was designedThe  HT9032C decoder chip was used to decord the FSK signal,and be together with C8051F310 MCU to finish receiving and dealing with the FSK code information Moreover,it was realized that the function of dialing, emergency alarm and etc., which are based on the DTMF signal encoding technology,and  many input and output devices were integrated including a LED matrix display,matrix keyboard,external audio power amplifier and etcThe results show that all these make the voice communication and remote control between the ground and the underground ,or among the underground tunnels realized well

Key words: broadcast used  in  mine;remote control;FSK;DTMF;C8051F310