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基于AT89S52的远程报警和控制系统
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基于AT89S52的远程报警和控制系统
阐述了远程报警和控制系统的构成和原理,同时结合具体电路说明该系统与各种输入、输出模块间的组成及工作方式。以AT89S52单片机作为控制核心、MT8888双音多频收发芯片作为DTMF收发器, ISD2590语音芯片作为语音提示,利用市话网双向传输数字和语音信息,实现系统远程报警和控制。这种远程控制系统可靠性高、适用性强、成本低廉,是工厂、机关、仓库及住宅实现安全防范和现场设备控制的有效方法。
The structure and working p rincip le of remote alarming and controlling system are described, and the constructions and operation modes of this system with various input and outputmodules are discussed by analyzing specific electric circuits.
Using AT89S52 as control core,MT8880 asDTMF transceiver, phonetic chip s SD2590 as phonetics p romp ts, the remote alarming and controlling could be realized by using the city telephone net to transmit digital and phonetic messages bidirectionally.
With the high reliability, good app licability and low cost, this system p rovides an effective method of safe guarding and field devices controlling for the factories, governments and residential district.
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