该系统由以单片机at89c51和双音多频mt8870解码芯片为核心的系统硬件及软件组成。
It is composed of software and hardware, with single chip AT89C51 and DTMF decoding chip MT8870 as its cores.
双音多频(DTMF)是一种在话音信道用音调来表示数字的方法，它可以用来在模拟话音信道传输信令，因此在通信中有广泛的应用。
Provide (DTMF) is a voice channel and tone to represent Numbers method, which can be used to transmit analog voice, so in communication has been widely used.
介绍了一种计算机通过利用双音多频(DTMF)码进行控制的多媒体数学集中控制系统的工作原理。
The authors introduce a principle that the computer controls the multimedia teaching centralized monitoring system by using of DTMF.
给出了双音多频发送电路的分立元件实现方法。
The realization of the DTMF circuit using discrete components was presented in this paper.
介绍了一种计算机通过利用双音多频(DTMF)码进行控制的多媒体数学集中控制系统的工作原理。
The authors introduce a principle that the computer controls the multimedia teaching centralized monitoring system by using of DTMF. This method is simple and dependable.
本文介绍一种DTMF（双音多频）通信方式的远程测控系统。
This paper presents a detection and control system in which the DTMF method is used to realize data communication.
本文介绍一种DTMF（双音多频）通信方式的远程测控系统。
This paper presents a detection and control system in which the DTMF method is used to realize data communication.
应用推荐