基于AT89S52的遠程報警和控制系統

闡述了遠程報警和控制系統的構成和原理,同時結合具體電路說明該系統與各種輸入、輸出模塊間的組成及工作方式。以AT89S52單片機作為控制核心、MT8888雙音多頻收發芯片作為DTMF收發器, ISD2590語音芯片作為語音提示,利用市話網雙向傳輸數字和語音信息,實現系統遠程報警和控制。這種遠程控制系統可靠性高、適用性強、成本低廉,是工廠、機關、倉庫及住宅實現安全防范和現場設備控制的有效方法。

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.