智能电话远程控制系统的设计

摘要: 本文介绍了电话远程控制系统。是基于AT89C51、DTMF解码芯片MT8870和语音芯片APR9600组成的。本设计是针对电话遥控方式的双工通信特点进行了较大改进，采取单片机智能控制，利用不同的提示音达到对于不同操作的提示及对授控方状态的信息反馈，从而使操作者能够及时了解控方信息，使产品达到交互式与智能化。电话智能遥控器由单片机构成主控部分，进行主要的信息处理，接收外部操主要设计是针对电话遥控方式的双工通信特点进行了较大改进，采取单片机智能控制，利用不同的提示音达到对于不同操作的提示及对授控方状态的信息反馈，从而使操作者能够及时了解控方信息，使产品达到交互式与智能化。电话智能遥控器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，并完成对于各种信息的记录；接口电路提供单片机与电话外线的接口。该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 Abstract This paper proposes a remote control system of household appliances, which contains AT89C51 MCU and the DTMF decoder MT8870. This article designs the multi-channel hospital bed call communications system use special-purpose chip transmission, uses the monolithic integrated circuit multiple address code technology, each extension telephone establishment use different address code, when call the error rate is low, calls the main engine time does not disturb mutually. This ringing system is one kind uses the address to arrange the decoding transmission mode, uses the monolithic integrated circuit to make the controller, the automatic storage newest call hospital bed number, and circulates the demonstration, the historical number use elimination key eliminates, has made the very big improvement on the traditional ringing system, is the advanced medical multi-channel hospital bed correspondence ringing system. The system receives DTMF signal through a phone line and remote-controls the electric switches, the fixed telephone or mobile telephone. Thus it remote controls the household appliance or other equipments. Keywords: Telephone Network Remote Control Single-Chip Microcontroller MT8870

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