基于 AT89C51 单片机的家电远程控制系统的设计摘 要伴随着电子产品的快速进展，手机和电话对宽阔人们群众来说已经不是一个新奇词了，但是如何利用手机和电话对家用电器进行远程控制的技术还尚未成熟。本次讨论的课题主要是针对如何对家用电器进行远程的控制。大家都知道，近几年来电子和通行技术进展的愈来愈成熟了，所以本文通过电话来设计达到远程控制家用电器的目的。该系统主要采纳 AT89C51 和 MT8870 双音多频解码集成电路为核心,使用公共电话网络,实现了智能控制的远程家电设备。本文主要介绍了组成该系统的整体框架、工作原理以及程序的设计方法，对“振铃检测电路、模拟摘挂机控制电路、双音多频解码电路、语音提示以及家用电器控制电路”等都作了详细的解释。用户可以在远端固定电话或移动电话发送 DTMF 双音多频信号,实现对近端远程智能控制的家用电器。同时也可以让用户发送语音信号及时了解被控对象的状态,以提供相应的解决方案。这个设备是不适合家庭使用,也适用于大型商店和商业单位。设计不仅操作方便、简单、可靠性高,是一个非常有前途的未来在新技术产品。关键词：AT89C51单片机 DTMF双音多频解码电路 振铃检测 摘挂机控制System for Household Electronic Appliance Base on The MicrocontrollerAbstractWith the rapid development of electronic products, mobile phone and call to the people, it is not a new word, but how to use mobile phones and phone for household electrical appliances for remote control technology still has not yet mature. This research topic is mainly aimed at how to household appliances remote control. As we all know, in recent years through the development of electronic and technology more and more mature, so this paper through the telephone to design to achieve the purpose of remote control household appliances. The system mainly to AT89C51 single-chip microcomputer and MT8870 dual tone multiple frequency decoding integrated circuit as the core, with the aid of the public telephone network, so it can realize the remote home appliance equipment intellectualized control. This...
