家用语音拨号报警系统设计.docVIP

。 摘要 不分段采用AT89C51单片机作为控制核心，外接E2PROM用于存储电话号码、设置参数(定时布/撤防、联动、水等)以及警情信息等。当AT89C51单片机实时巡检到新的警情信号时，报警主机就会自动进行警情处理(声光报警、启动相应联动、记录警情以及拨号报警等)。拨号报警的工作原理如下：系统自动地控制摘／挂机电路模拟摘机，同时AT89C51单片机通过可编程并行接口8255将MT8880置为呼叫模式，检测是否有拨号音。若有拨号音，则将MT8880设为突发方式，并按用户预设的电话号码自动拨号。拨完电话号码以后立即检测对方是否摘机，一旦检测到对方摘机，就启动语音提示电路发送与警情相一致的语音信息，完成自动拨号报警。重点论述了自动拨号和语音部分的电路结构、工作原理和软件设计方法。 关键字：单片机 自动拨号 语音芯片 信号音检测 ABSTRACT Adopt the AT89 C51 single slice machine is to control core and circumscribe E2 PROMs to used for saving telephone number, constitution parameter (in fixed time cloth/withdraw a garsion, allied move, water etc.) and Jing feeling information etc..When the AT89 C51 single slice the machine be solid hour cruise to check new Jing feeling signal, report to the police the host will automatically carry on Jing feeling a processing.(sound and light report to the police, the start correspond allied move, record Jing feeling and stir number to report to the police etc.)Stir the work principle that the number report to the police as follows:The system of oneself controls to take off/hang machine electric circuit emulation to take off machine, the AT89 C51 single slice machine passes in the meantime programmable abreast connect 8255 place MT8880 in order to call mode, whether examination has already stired a number sound or not.If have already stired a number sound, then establish the MT8880 as abrupt way, and press the customer the pre-established telephone number automatically stirs number.Finish stir telephone number hereafter immediately examine whether the other party takes off machine or not, once examining the other party to take off machine, initiate a speech hint electric circuit to send out with the Jing feeling mutually consistent speech information, complete an au to stir number to report to the police.The point discussed to automatically stir the electric circuit structure, the work principle and software of number and speech part to design a method. Keywords: MCU Automatically stir number S