摘 要：目前，随着人们私有财产不断的增多，因而对防盗措施提出了新的要求。但目前市面上所拥有的家庭电子防盗报警器，只能用于单一的住宅单元，不利于统一管理，而且也不能满足现代住宅区的发展要求，所以很有必要对家庭电子防盗报警器做进一步改善。68632

针对居民住宅安全防盗的要求，本文设计了一种家庭式红外报警器，选择热释电红外传感器作为信号采集装置，以STC89C52单片机作为控制器，并结合报警电路、LED控制电路等共同构成一种非接触式的红外报警系统。该设计可以实现对人体辐射出来的红外线的探测，通过信号处理电路将其转化为数字信号传给单片机，通过单片机控制报警电路，从而实现防盗报警的功能。

经过实物测试，本报警装置实现了在7米范围内对人体的感应和自动报警功能，证明了本设计具有可行性。

毕业论文关键词：DYP-ME003人体红外传感器，单片机STC89C52，防盗器

Abstract: At present, private property as people continue to increase, so the security measures put forward new demands. But currently on the market have home electronics burglar alarm, only for a single dwelling unit, is not conducive to unified management, but also can not meet the development requirements of modern residential areas, so it is necessary for electronic home burglar alarm further improvement.

Requirements for residential security alarm, the paper presents a family infrared alarm, select pyroelectric infrared sensor as a signal acquisition device to STC89C52 MCU as controller, combined with the alarm circuit, LED control circuit together constitute a non-contact infrared alarm system. This design can be achieved on the human body to detect infrared rays radiated by the signal processing circuit to convert it into a digital signal to the microcontroller, microprocessor controlled by an alarm circuit, in order to achieve functional burglar alarm.

Through physical testing, the alarm device achieved within seven meters of the human body sensing and automatic alarm function, this design proved feasible.

KEY WORDS: DYP - ME003 human body infrared sensor, MCU STC89C52, alarm

目   录

1  绪论 4

1.1  引言 4

1.2  课题背景 4

1.3  国内外现状 5

2  总体设计方案和内容及主要器件 5

2.1  本文总体设计方案 5

2.2  本文主要设计内容 6

2.3  主要器件 6

3  硬件电路设计 14

3.1  电源模块 14

3.2  信号采集处理模块 15

3.3  单片机最小系统 16

3.4  按键控制电路 17

3.5  指示灯和报警电路 17

3.6  复位电路 18

4  软件程序设计 19

4.1  主程序工作流程图 19

4.2  报警判断程序 20

5  硬件的调试 20

5.1  手动报警 21

5.2  自动报警 22