红外声控报警系统的设计

论文编号:JD933   论文字数:9831,页数:30

摘要
  这个红外声控报警系统是由中央控制器、红外传感器、声控传感器、报警器及键盘部分组成。控制器采用单片机AT89C52,红外传感部分采用红外发射接收一体化的光电传感器TCRT5000，声控传感部分采用驻极体话筒，扬声器和发光二极管作为报警设备。单片机通过红外传感部分和声控传感部分的传来的信号的变化来判断是否有外来者，如有则通过扬声器或者发给二极管来报警；红外传感器是通过发射管发射红外线到接收管，两个元件之间通过红外线进行连接，当有物体挡在中间时，便把电平的变化传给单片机；同理，声控传感器是把声音信号转换为电信号然后传送给单片机；键盘是用来设置报警触发的条件。

关键词：单片机 ； 汇编语言 ；红外传感器 ；声控传感器 ；AT89C52

Abstract
 The infrared voice alarm system is composed of a central controller, infrared sensors, voice-activated sensors, alarm devices and keyboard parts. Controller using microcontroller AT89C52, infrared sensing part of the integration of infrared transmitting and receiving electro-optical sensors TCRT5000, voice-activated sensor part of the use of electret microphone, speakers and light-emitting diodes as the alarm equipment. Microcontroller through the infrared sensor part and the voice-activated sensor part of the coming changes in the signal to determine whether there are outsiders, if sent through the speakers or the diode to the police; infrared sensors, infrared emission through the launch tube to the receiving tube, two between elements of a connecting via infrared, when there are objects stand in the middle, they then pass on the changes in level microcontroller; Similarly, voice-activated sensor is converted into electrical signals into acoustic signals and then transmitted to the microcontroller; keyboard is used to set the alarm trigger conditions. Keywords:microcontroller; assembly language;infrared sensor;
 voice-activated sensor; AT89C52

 目录
Abstract II
引  言 1
1 设计任务 2
1.1 基本部分 2
1.2 发挥部分 2
2方案论证与比较 2
2.1 主控制器选择 2
2.2 计时控制方案 2
2.3 红外元件选择 3
2.4 键盘电路方案 3
3系统总体电路设计及IC资料 4
3.1系统总体电路设计 4
3.2 IC资料介绍 5
3.2.1单片机AT89S52 5
3.2.2 红外元器件 9
3.2.3 驻极体话筒 10
3.2.4 蜂鸣器 11
4.系统电路设计 13
4.1报警电路模块 13
4.1.1  发光二极管模块 13
4.1.2蜂鸣器模块 13
4.2红外报警模块 14
4.2.1 红外模块功能的实现 14
4.3 声控模块 14
4.4 键盘电路模块 15
系统软件设计 17
5.1 主程序流程图 17
5.2  各个子程序流程图 18
5.2.1 红外线扫描子程序 18
5.2.3键盘处理子程序流程图 19
6系统整机调试及主要技术指标测试 22
6.1系统使用说明书及整机调试 22
6.1.1 联机 22
6.1.2 主要技术指标出测试 22
6.2 误差分析 22
结    论 23
参考文献 24
致    谢 25
附录1：系统硬件原理图 26