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时间：2023-11-18 17:44:59 下载该word文档
基于单片机的微波防盗报警器设计
摘要：本文基于单片机设计了一个微波防盗报警系统。该系统控制核心用的是AT89C52，主要包括微波探测器、热释电式红外传感器、单片机控制、信号放大及相关的驱动电路组成。本设计操作简单、运行可靠，除了具有基本的防盗报警功能，还能够实现自动探测信号和自动报警功能。自动探测是由热释电红外传感器和微波探测器共同完成，双探测器的应用使得系统的可靠性大大增强，误报率明显降低；自动报警是指当单片机接收到由探测器检测到入侵信号时，通过程序控制自动输出报警信号引发扬声器和LED发光报警。
关键词：微波探测器；单片机；热释电式红外传感器；防盗报警
TheDesignofMicrowaveAnti-theftAlarmCircuit
Abstract:Thissystemincludestwoparts:hardwaredesignandsoftwaredesign.Hardwaredesignisconsistedbymicrowavedetectorcircuitdesign,pyroelectricinfraredsensorsdesign,single-chipmicrocomputercontrolcircuitdesign,signalamplifiercircuitdesignandrelevantdrivercircuitdesign.Thewholesystemiscontrolledbythesystemsoftware.Thistopicdesignsasimpleandreliableoperationoftheanti-theftalarmsystembasedonsinglechip.Ithasabasicsecurityalarmfunction,anditcanautomaticallydetectthesignalandrealizetheautomaticalarm.Automaticdetectioniscompletedbybothofpyroelectricinfraredsensorsandmicrowavedetector.Doubledetectorapplicationmakesthesystemreliabilitygreatlyenhanced,italsoreducedtherateoffalsepositives.Theautomaticalarmmeansthatwhenmicrocontrollerreceivestheinvasionsignalbytheprobedetector,itwillautomaticallyoutputalarmsignaltotriggerthe speakerandLEDthroughtheprogramcontrolling. Keywords: Microwavedetector;MCU;Pyroelectricinfraredsensors;Anti-theftAlarm
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