人体红外感应报警器毕业设计

毕业论文

题目：人体红外感应报警器

摘要

随着社会的不断进步和科学技术、经济的不断发展，人们生活水平得到很大的提高，对私有财产的保护意识在不断的增强，因而对防盗措施提出了新的要求。本系统采用了红外线传感器，它的制作简单、成本低、安装比较方便，而且防盗性能比较稳定，抗干扰能力强、灵敏度高、安全可靠。这种防盗器安装隐蔽，不易被盗贼发现，同时它的信号经过单片机系统处理后方便和PC机通信，便于多用户统一管理。本设计包括硬件和软件设计两个部分。硬件部分包括单片机控制电路、红外传感器电路、驱动执行报警电路、LED控制电路四部分组成。处理器采用C51系列单片机AT89C52，整个系统是在系统软件控制下工作的，可以实现防盗报警的功能。

关键词：单片机红外传感器数据采集报警电路

Abstract

With the development of society and science and technology, development of economy, people's living standards have greatly increased, to the private property protection consciousness in the unceasing enhancement, so for security measures put forward new requirement. The system uses the infrared sensor which makes simple, low cost. Installation is convenient and properties of security is stable, strong anti-interference ability, high sensitivity, safe and reliable. The devices installed concealment.It is not easy to find that. At the same time it's signal after the MCU system treatment convenient and PC communications, facilitate unified management of many users. This design including hardware and software design of two parts. Hardware part includes single chip microcomputer control circuit, infrared sensor circuit, drive the implementation of the alarming circuit, LED the control circuit of four parts. The AT89C52 chip processor C51 series whole system is under control in the system software, can achieve security alarm function.

Key words: AT89C52 Infrared Sensor Data Collection Alarm Circuit

目录

河北北方学院.......................................................... 错误!未定义书签。摘要.................................................................................. I Abstract............................................................................. II 第一章引言...................................................................... - 1 -

1.1项目背景..................................................................... - 1 -

1.2设计任务与要求............................................................... - 1 -

1.3项目意义..................................................................... - 2 - 第二章设计相关模块简介.......................................................... - 2 -

2.1 AT89C52单片机简述........................................................... - 2 -

2.1.1 AT89C52单片机的结构..................................................... - 2 -

2.1.2 AT89C52管脚说明......................................................... - 3 -

2.2 红外线传感器简单介绍........................................................ - 5 -

2.2.1红外线传感器内部电路框图................................................. - 5 -

2.2.2 红外线传感器的工作原理特性.............................................. - 6 -

2.2.3 本设计中采用的红外传感模块简介（图4）................................... - 6 -

2.3 发声模块介绍................................................................ - 7 -

2.3.1 蜂鸣器介绍.............................................................. - 7 -

2.3.2 蜂鸣器驱动电路.......................................................... - 7 -

2.4 MAX232简介.................................................................. - 7 - 第三章方案设计.................................................................. - 8 -

3.1 总体设计思路................................................................ - 8 -

3.2 具体电路模块设计............................................................ - 9 -

3.2.1 红外传感器设计原理...................................................... - 9 -

3.2.2 时钟电路的设计.......................................................... - 9 -

3.2.3 复位电路的设计......................................................... - 10 -

3.2.4 发光二极管报警电路设计................................................. - 10 -

3.2.5声音报警电路设计........................................................ - 11 -

3.2.6 程序烧录电路的设计..................................................... - 11 -

3.3 系统硬件电路的选择以及说明................................................. - 12 -

3.4 系统软件的实现............................................................. - 12 -