学号20100602050140
密级 公开
兰州城市学院本科毕业论文
单片机应用系统中的报警电路分析与设计
学 院 名 称：培黎工程技术学院 专 业 名 称：电子信息科学与技术 学 生 姓 名：张建强 指 导 教 师：石蕊
二○一四年五月
I
BACHELOR'S DEGREE THESIS OF LANZHOU CITY UNIVERSITY
The Design and Simulation of
College：School of Bailie Engineering & Technology Subject：Electronic Information Science and Technology Name： Zhang Jian Qiang Directed by： Shi Rui
May 2014
II
郑 重 声 明
本人呈交的学位论文，是在导师的指导下，独立进行研究工作所取得的成果，所有数据、图片资料真实可靠。尽我所知，除文中已经注明引用的内容外，本学位论文的研究成果不包含他人享有著作权的内容。对本论文所涉及的研究工作做出贡献的其他个人和集体，均已在文中以明确的方式标明。本学位论文的知识产权归属于培养单位。
本人签名： 日期：
3
摘 要
基于社会安全保障的需要，电子报警这门综合技术的正在不断的发展。与此同时，红外线技术已成为先进技术的重要组成部分，由于红外线是不可见光，因此用它进行红外探测监控，具有良好的隐蔽性，白天和黑夜都可以使用，而且其抗干扰能力强。防盗报警系统利用单片机控制技术，自动探测发生在布防去内的侵入行为，产生警报信号，一旦发生突发事件，就会向人们发出报警提示，从而让人及时采取应对措施。奔系统采用了热释电红外传感器，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两个部分。硬件部分包括单片机控制电路、红外探头电路、驱动执行报警电路、LED控制电路等部分组成。处理器采用52系列单片机AT89C52，整个系统是在系统软件的控制下工作的，因此在防盗、警戒等安保装置中得到了广泛的应用。此外，在电子防盗、人体探测等领域中，热释电红外探测器也以其价格低廉、技术性能稳定等特点而受到广大用户和专业人士的欢迎。 关键字：单片机：红外传感器：数据采集：报警电路
4
Abstract
Based on the needs of the social security, electronic alarm is continuous development of the comprehensive technology. Infrared technology,
meanwhile, has become an important part of advanced technology, due to the infrared light is not visible light, so use it for infrared detection monitoring, good concealment, day and night, can be used and its anti-interference ability is strong. Security alarm system using single-chip microcomputer control
technology, automatic detection occurs within the protection to the intrusion behavior, an alarm signal, in case of emergency, will send out alarm prompt to people, so that people respond in a timely manner. The running of the system used the pyroelectric infrared sensor, its simple, low cost, installation is more convenient, and anti-theft performance is stable, strong anti-interference ability, high sensitivity, safe and reliable. The alarm installed concealment, is not easy to be thieves, found that at the same time its signal after dealing with the single chip microcomputer system is convenient and PC communication, facilitate unified management among multiple users. This design includes two parts of hardware and software. Hardware part includes single chip microcomputer control circuit, infrared sensor circuit, drive to perform alarm circuit, LED
control circuit and other parts. With 52 series single chip processor AT89C52, the whole system is under the control of the system software work, so in
security, alert security devices such as widely used. In addition, in the field of electronic guard against theft, the human body detection, pyroelectric infrared detector also by its price is low, the technical characteristics of stable performance and welcomed by the masses of users and professionals. Key words: single chip microcomputer: infrared sensor, data acquisition, alarm circuit
5