"基于AT89C51的家用电器远程电话控制系统设计"

本文介绍了一种基于单片机AT89C51、DTMF解码芯片MT8870和语音芯片APR9600的家用电器远程控制系统设计。该设计通过对电话遥控方式的双工通信特点进行改进，采用单片机智能控制和不同的提示音来实现对不同操作的提示及对控制方状态的信息反馈，使操作者能够及时了解控制信息，从而实现交互式和智能化的远程控制。 该系统由单片机构成主控部分，进行主要的信息处理，接收外部操作指令形成各种控制信号，并完成对各种信息的记录；接口电路提供单片机与电话外线的接口。系统能够接收电话线上的DTMF信号，用户可通过拨打固定电话或移动电话，实现对家电的远程控制。 关键词：电话网 远程控制 单片机 MT8870 APR9600 家用电器 远程控制系统 Abstract: This paper proposes a remote control system of household appliances, which is based on the single chip microcomputer AT89C51, DTMF decoding chip MT8870, and voice chip APR9600. This design improves the duplex communication characteristics of the telephone remote control mode, and adopts single-chip intelligent control and different prompt sounds to achieve prompt feedback for different operations and the status of the control end, so that the operator can timely understand the control information, and realize interactive and intelligent remote control. The system is composed of a single-chip microcomputer as the main control part to process the main information, receive external operation instructions to generate various control signals, and complete the recording of various information; the interface circuit provides an interface between the single-chip microcomputer and the telephone line. The system can receive DTMF signals on the telephone line. Users can remotely control household appliances by dialing a landline or mobile phone. Keywords: telephone network, remote control, single-chip microcomputer, MT8870, APR9600, household appliances, remote control system