人体红外线感应报警器概要

***************学校

毕业设计论文

论文题目：人体红外线感应报警器

系部电子通信工程系

专业应用电子技术

班级091班

学生姓名

学号090414110

指导教师

2012年04 月20 日

摘要

科技发展日新月异，尤其是21世纪，电子技术给我们生活带来了翻天覆地的变化，电子技术不仅便利了我们的生活，更简化了我们的环境，随着人们生活质量提高，对电子技术的需要要求也越来越高。人体动作的检测识别也已经成为当前的热门方向之一，精确的识别使它有更广阔的空间和潜力，在安防，人机交互，智能家居系统、运动捕捉系统等领域人体动作的检测识别有着非常大的应用前景。

该报警器能探测人体发出的红外线，由红外线传感器、信号放大电路、电压比较器、延时电路和音响报警电路等组成。当人进入报警器的监视区域内，即可发出报警声，适用于家庭、办公室、仓库、实验室等比较重要场合防盗报警。概述了红外辐射的知识、热释电红外传感器的结构和工作原理。利用热释电红外传感器设计了一种被动式红外报警电路,分析了该电路的功能和工作原理。热释电红外传感器具有很多的优点,在防盗、警戒等装置中较广

。

关键词红外线电压比较器延迟电路报警器

ABSTRACT

Technology is advancing rapidly, especially in the 21st century, electronic technology has undergone enormous changes to our lives, electronic technology has not only facilitated our lives, but also simplifies our environment, to improve the quality of people's lives, the need for electronic technology requirement sin singly high. Detection and recognition of human motion has become one of the popular direction of the current, accurate identification makes it a broader space and potential in the detection and identification of human action in the field of security, human-computer interaction, intelligent home systems, motion capture system has very large applications.

The alarm can detect infrared issued by the body, consists of infrared sensors, signal conditioning circuit, voltage comparator, the delay circuit and the audio alarm circuit. Into the alarm monitoring area, you can sound an alarm, and applies to homes, offices, warehouses, laboratories and other important occasions, anti-theft alarm. An overview of the infrared radiation of the knowledge, structure and working principle of the pyroelectric infrared sensor. Pyroelectric infrared sensor designed a passive infrared alarm circuit, the circuit functions and working principle. Pyroelectric infrared sensor has many advantages, wider in the theft, and alert devices.

Key Words Infrared voltage comparator delay circuit alar

目录

摘要 (1)

目录 (1)

绪论 (2)

第一章设计要求与方案论证： (3)

1.1 设计概述 (3)

1.2 设计背景 (3)

1.3 设计要求 (3)

1.4 设计意义 (4)

第二章：方案设计与研究 (5)

2.1 设计过程 (5)

2.2 方案选定 (5)

第三章：红外线传感器的概述 (6)

3.1 红外线传感器 (6)

3.2 红外线传感器的特点 (6)

3.3 主要特性 (6)

第四章：LM358芯片 (8)

4.1 LM358概述 (8)

4.2 芯片特点 (8)

4.3 电气特性 (9)

第五章：LM393芯片 (10)

5.1 LM393概述 (10)

5.2 芯片特点 (10)

5.3 电气特性 (11)

第六章：电路设计 (12)

6.1 红外线传感器 (12)

6.2 信号放大电路 (12)

6.3 电压比较器 (13)

6.4 音响报警电路 (15)

6.5 延时电路 (16)

6.6 12V电源电路 (17)

6.7 红外线感应报警电路 (19)

6.8红外线感应报警原理 (19)

第七章：总结和展望 (21)

总结 (21)

致谢 (22)

参考文献 (23)

附表1 元件清单 (24)

附表2 源程序 (25)