摘要
讨论了一种电话远程控制系统(TRCS)的设计与实现。该系统基于单片机和双音多频信号技术(DTMF),具有振铃检测、模拟摘机、DTMF信号解调、开关量控制等功能,并且使用ISD4004芯片进行语音提示。详细论述了该系统的硬件组成以及软件设计。实际证明该系统性能稳定、操作方便,具有较高的实用价值。
This paper discusses the design and implementation of a telephone remote control system.Based on the microcontroller and Dual Tone Multi Frequency(DTMF) technique,TRCS has functions of the ringing detecting,the telephone lifting simulating,the DTMF demodulation and the on-off control.It also provides the voice prompting function.The hardware architecture,software design,working principle and functions are discussed in detail in this paper.It is proved that TRCS is useful in practice,which is steady and easy to use.
出处
《计算机与数字工程》
2007年第4期143-146,共4页
Computer & Digital Engineering
关键词
双音多频
单片机
ISD4004
远程控制
Dual Tone Multi Frequency,Single Chip Microcomputer, ISD4004,Remote control
