家用电器的电话遥控器设计

Design of Telephone Remote Controller for Home Electrical Appliances

家电电话遥控器通过电话控制家用电器开关。其设计采用AT89C2051及外围拓展74HC165、74HC595、X25045等芯片,配合双音多频发送与接收芯片SC8880和ISD33060语音、功放、电源等电路。系统程序用汇编语言编写,并固化在AT89C51内。遥控器通过电话线接收DTMF指令,振铃6s无人接听则自动接入电器控制器,用户输入正确密码后,即可语音提示控制相应家电。

Telephone remote controller controls the switches of home electrical appliances with a telephone. Single-chip AT89C2051, 74HC165, 74HC595, X25045 etc chips for periphery extend, cooperating with chip SC8880 and circuits of IDC33060, power magnifier and power supply etc was applied in the design of the controller. The system program was compiled with assembly language and the language was solidified inside single-chip AT89C2051. The remote controller receives the DTMF instructions through the telephone lines. It will switches on the controller for home electrical appliances automatically, if no one gets the ring after the telephone rings 6 seconds. After users input the correct password, the telephone remote controller controls corresponding home electrical appliances according to the sound prompts.