1、 I 红外报警监控系统的设计 摘要 ： 随着科学技术、 社会 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，因此对防盗措施提出了更高 的要求。 当前基于红外技术的目标监控系统主要有两种：一种为主动红外跟踪定位系统，另一种为基于热释电红外传感器的报警系统。本课题主要研究后者，设计基于STC89C52 单片机的红外报警监控系统。 作为一种新型传感器件，基于热释电效应的热释电人体红外线传感器的功能更加完善，对体温为 37 左右的人体辐射的中心波长为 9um 到 10um 左右的红外线感知能力更强，在其防盗报警范围 内，利用防盗报警电路探测是否有人进入，当有人闯入时可
2、以通过一系列能量变化产生电信号，最终达到电声报警的目的 。 本系统 将红外报警、温湿度测量显示、实时时钟集为一体，简单实用，抗干扰能力强、灵敏度高、安全可靠，具有很高的应用价值。 设计主要分硬件部分和软件部分。硬件部分中 单片机 选用宏晶公司 的 高性能、低功耗单片机 STC89C52；热释电红外报警器使用 DYP-ME003 红外人体传感器，是根据红外线技术制成的自动控制产品 ； DHT11 温湿度传感器 给系统提供实时的温度湿度数据；时钟部分由 DS1302 实现； 四 键 键 盘可以切换系 统的开、关报警状态，设定时钟 /日历初始值，查询报警时间等 。 软件部分包括 DS1302 初始时
3、间设置，监控信号采集记录和液晶显示部分。 关键词： 红外报警 ； 被动式 ； STC89C52 单片机 ； 温湿度测量 中图分类号： TP277 II Design of Infrared Alarm Monitoring and Control System Abstract： With the development of economy and science and technology, peoples living standards have greatly increased, and the consciousness to the private property prot
4、ection is in the unceasing enhancement, so higher request for the security measures has been put forward. The current monitoring system based on infrared technology mainly has two kinds: one kind is active infrared tracking system, and the other is alarm system based on infrared sensor. This subject
5、 mainly studies the latter, designed a infrared alarm monitor system based on the single chip STC89C52.Infrared invasion alarm based on infrared detection technology as a new technology, has been more and more get the social attention from all walks of life and extensive application. As a new type o
6、f sensor component, the function of infrared sensors for human body based on effect is more perfect, the sensory ability for the human radiation whose temperature is 37 and the center of the wavelengths is 9 to 10 um around is more strong, in its security alarm range, it use security alarm circuit t
7、o detect if someone is in. When people come in, through a series change of energy it can generate signals, and finally reach the purpose of sound and light alarm. It Integrated infrared alarm, temperature and humidity measurement and display, real time clock sets into a body, it is simple, practical
8、, and strong anti-interference ability, high sensitivity, safe, reliable, and has a high application value. The design include hardware and software parts. The single chip microcomputer in hardware part chooses the high performance, low power consumption MCU STC89C52 produced by macro crystal compan
9、y； infrared alarm uses DYP-ME003 infrared human sensor, is automatic control products based on infrared technology； DHT11 temperature and humidity sensor provides real-time temperature humidity data to the system； The clock part is implemented by the DS1302； Four keys keyboard can switch system open
10、 and close the alarm status, set the clock/calendar initial value, inquires the alarm time and so on. Software part includes DS1302 initial time settings, control signal acquisition records and liquid crystal display parts. Keywords: Infrared alarm； passive； STC89C52 SCM,； temperature and humidity measurement Classification: TP277
