毕业设计（论文）-基于ARM智能家居照明系统.doc

目录
引言 4
1 ARM处理器 6
ARM处理器介绍 6
ARM920T体系结构 8
2 硬件电路设计 12
设计思路。 12
信号处理电路 13
2. 3主控制操作界面的实现 14
-Magic core硬件资源 14
RE200B热释红外传感器 18
热释红外传感器介绍 18
RE200B工作原理 20
放大电路设计 22
延时电路设计 24
3系统软件设计 26
结语 27
致谢 27
参考文献 28
附录1 30
附录2 30
附录3 31
附录4 32
摘要
近年来随着社会的进步发展,人们对身边的环境安全越来越关注。红外传感器在这个时候起到了很重要的作用。热释红外传感器主要用于探测红外特征辐射,可感知人体、小动物的热源,适合做热释红外物体运动探测,可以
用于照明电路的设计中。
本设计基于UP-Magic魔法师实训平台,采用了韩国三星公司生产的S3C2440的ARM9实验开发板。S3C2440处理器是一款基于ARM920T内核和AMNA总线的16/32位RISC嵌入式处理器,主要面向手持设备,以及高性价比、低功耗的应用。
本设计介绍了一种热释红外传感器系统的设计方案,电路组成及其组装、调试。这种被动型热释电红外照明的应用电路把红外线的隐蔽性很好地应用于照明系统中,从而实现了方便、快捷的功能。当有人体进入热释红外传感器的探测范围内,传感器将接收到探测到的热源,随后传感器将输出微弱信号,信号要经过放大、比较、延时等几个环节,最后使放光二极管发光,起到照明的作用。
关键词:热释红外(PIR)传感器;运算放大器;ARM9;linux
Abstract
With the development of social progress in recent years, people have e increasingly concerned about the safety of their surroundings. Infrared radiation sensor plays a very important role in this time. PIR sensors are used for detecting the
characteristic infrared radiation,percept the heat source of human body and small animals, the design of alarm circuit.
The design is based on UP-Magic magician Flats and used the ARM9 experimental development board of S3C2410 produced by Samsung. S3C2410 processor is a 16/32 bit RISC embedded processor which based on ARM920T core and AMNA bus, and mainly for handheld devices, and high cost, low-power applications.
This design introduces a design plan of the PIR sensor system, circuit and its assembling, debugging. The Application Circuit of the passive PIR alarm uses the invisibility of the infrared radiation well into the alarm system, and in order to achieve the anti-theft alarm and security purposes. When the body goes into the range of PIR sensor detection, sensors will receive the detection of heat sources and then the sensor will output a weak signal. The Signal should be amplified, compared and delayed, finally light-emitting diodes emit light, played the role of police