智能型电话远程遥控器毕业设计.docVIP

摘要 随着通讯产业的发展，电话机有单片机控制的家用电器的电话遥控，用户可通过任意一部双音多频电话（包括手机，电话分机）对自己家庭安装的各种已经走进了千家万户；随着现代科学技术的发展，利用电话机进行远程控制的技术也日益用于生活中。 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。其中包括铃流检测、摘挂机控制、忙音检测、双音频DTMF识别，及语音提示电路。 本文主要介绍了一种以单片机AT89C51和双音多频解码集成电路MT8870为核心，通过电话线路遥控的远程多路智能控制器。该系统实用、功能灵活多样，可以对被遥控对象的状态进行查询以及控制，可以广泛的应用于家用电器或者其它场所的各种控制设备。 关键词：电话遥控 双音频编解码 ABSTRACT Along with the communication industry development, the telephone hadthe domestic electric appliances telephone remote control which themonolithic integrated circuit controlled, a user passable wilfullydouble sound multi- frequencies telephone (has included handset,extension telephone) to oneself family installment each kind alreadyentered everyone; Along with the modern science and technologydevelopment, carries on the long-distance control using the telephonethe technology also day by day to use in the life. The telephone intelligence remote control by the monolithic integrated circuit constitution master control part, carries on the main information processing, receives exterior operational order to form each kind of control signal, and completes regarding each kind of information record; The connection electric circuit provides the monolithic integrated circuit and the telephone outwire connection.In which flows the examination including the bell, picks hangs machine the control, the busy signal examination, the double audio frequency DTMF recognition, and voice prompt electric circuit. This article mainly introduced one kind take monolithicintegrated circuit AT89C51 and double sound multi- frequenciesdecoding integrated circuit MT8870 as a core, controls remotely thelong-distance multichannel intelligent controller through thetelephone channel. This system practical, the function nimble isdiverse, may to carry on by the remotely controlled object conditionthe inquiry as well as the control, may the widespread application tothe domestic electric appliances or other place