1、 I 毕 业 设 计 题目：题目： 多功能红外人体报警器的设计 II 多功能红外人体报警器的设计 摘 要 随着社会的快速发展，人们对财产安全的要求也越来越高，如何在考虑设备安装方 便、成本便宜、持久耐用等方面因素的前提下，设计具有更高灵敏度和可靠性的防盗报 警装置成为人们关注的焦点和迫切需求。 热释电红外检测技术是利用热释电红外传感器 作为探头，来检测人体所发出的特定波长红外线信号，进行非接触式距离较远的检测。 该技术具有测量范围广、响应速度快、灵敏度高、抗干扰能力强、安全可靠等特点。为 此，本设计中采用高性能、低功耗的 STC89C52 系列单片机作为微控制器，并基于此微 控制器设计一种新的
2、热释电红外报警器。 本文在研究热释电红外报警器基本原理的基础上，给出了系统设计的具体实现方 法，并结合现阶段热释电红外报警装置的技术特点，研制了一种新的基于 52 系列单片 机的低功耗、高性能、高可靠性的热释电红外报警器。文中给出该系统的硬件总体设计 框架、各模块的硬件设计、软件设计思路以及主要的软件程序，同时对影响系统报警精 确度的因素进行分析，设计中加入了相应的解决措施，提高了系统的抗干扰能力。 关键词：热释电红外传感器，菲涅尔透镜，单片机 III The Design of Multifunctional Infrared Version Alarm ABSTRACT With the
3、rapid development of society, people require the sound property safety . It have becomes a key issue and urgent requirement, how to design the highly-sensitive and reliable anti-theft alarm (ATA) in consideration of easy installation, low cost and duration of wearing. For pyroelectric infrared detec
4、tion technology, the pyroelectric infrared sensor is used as a probe to detect the specific-wavelength infrared signal emitted from human body for detection in a non-contact further distance. This technology features wide measuring range, quick response, high sensitivity, strong anti-jamming, and sa
5、fety and reliability. So, with high performance and lower power consumption, five two series of MCU is used as the micro controller in the design, and the new pyroelectric infrared alarm is designed based on this micro controller. In the paper, the specific method for the system design is given on t
6、he basis of a basic principle of pyroelectric infrared alarm. Combining with the technical characteristics of the present pyroelectric infrared alarm, a new pyroelectric infrared alarm is developed based on MCU with the low power consumption, high performance and high reliability. This paper gives overall design framework of the system hardware, hardware design of each module, software design ideas and major software program. The corresponding measures is taken so as to improve the syst
