摘要：社会在不断进步，人类在不断追求，市场在不断变化，高科技应用含量决定着产品发展的新趋势和前景，智能化技术在电子产品领域的应用意义深远。而智能化家用电器都有一个共同的特点，都是利用单片机作为中央控制单元。结合了单片机的智能家用电器和普通家用电器相比，功能上更强，使用更方便，安全可靠性也更高，最重要的是更节省电能，提高了家用电器的品质。

台灯是人们日常生活的必需品之一，但大多数台灯只能人为关停，十分的不方便。本次设计的台灯能够根据外界光信号强弱和人体红外信号来判断是否开启照明，以及开启多少LED灯，即可以节约电能，又能够节省人力。本设计使用AT89C52单片机为核心，加上光敏电阻以及热释电传感器，以完成对外界的探测，并完成台灯亮度的自动调节。59506

毕业论文关键词：智能台灯，自动开关，单片机

Abstract：Social in continuous progress, human in the constant pursuit, market changing, content of high-tech application determines product development new trends and prospects, intelligent technology in the field of electronic products application significance is far-reaching. The intelligent home appliances have a common feature, are the use of SCM as the central control unit. Combines the MCU intelligent household appliances and common household appliances compared, stronger function, it is more convenient to use, security and reliability are higher, the most important is more can save energy and improve the quality of household appliances.

Table lamp is one of the necessities of daily life, but most of the lamp can only be artificially shut down, very inconvenient. The design of the lamp can according to the external light signal and human infrared signal to determine whether the open lighting, and how much LED lights, that can save energy, and can save manpower. The design uses AT89C52 microcontroller as the core, plus the photosensitive resistor and pyroelectric sensor, to complete the detection of the outside world, and complete the automatic adjustment of the lamp brightness.

Keywords: Intelligent desk lamp，automatic switch，SCM

1绪论 4

1.1 研究背景及意义 4

1.2 研究现状 4

1.3 研究内容 4

2 系统总体方案设计 4

3 系统硬件设计 5

3.1 AT89C52单片机最小系统设计 5

3.2 传感器及信号处理电路模块设计 10

3.3 显示电路的设计 14

3.4 灯光控制电路 14

4 系统软件设计 15

结论 16

参考文献 17

致  谢 18

附录1 19

附录2 20

1绪论 

1.1 研究背景及意义

台灯是人们日常生活的必需生活电器。我国每年的年发电总量中，照明用电占据了超过12%(100亿kw·h)，目前使用的台灯大部分是普通的荧光灯、白炽灯、节能灯和螺旋节能灯，而且功能也比较单一，和目前家电的智能化，人性化，低耗能设计理念背道而驰。尽管现在手动按键式的台灯还是台灯市场的主体，但是，随着人们的需求变化和现代电子技术的发展，传统的台灯将逐渐被新型智能化台灯所顶替。智能化台灯相对于着普通台灯有着巨大的优势。智能化台灯即节省电能，也有利于环保。