摘 要

随着科学技术的不断进步，电子产品也得到不断地发展，诸如电视，冰箱，空调，照明灯，手机等电子产品已经渗透到我们的日常生活中，毫不夸张地说，人们的生活已经完全离不开这些电子产品。

然而我们的生活水平不断变好，因此我们对电子产品的品质要求也越来越高。电子产品向着智能化、人性化的方向不断发展。普通的电子产品已经满足不了人们日益增长的物质需求了。例如手机，手机最初始的功能仅仅是通讯，然而现在的智能手机能够集通讯、社交、购物、游戏等一系列功能于一体。所以，智能化已经成为电子产品的发展方向。

本文介绍的是台灯的智能设计。基于单片机的智能台灯具有人体红外检测模块、光照检测模块、PWM手动调光模块。能实现人走灯灭、人来灯亮、光照强自动变暗、光照暗自动变亮、手动调光灯一系列功能。与普通白炽灯相比有巨大的优势。不仅绿色节能，而且更加人性化、智能化。

关键词：单片机；台灯 ；PWM；人体感应

abstract

With the continuous progress of science and technology, electronic products have been continuously developed, such as television, refrigerator, air conditioning, lighting, mobile phones and other electronic products have penetrated into our daily life. It is no exaggeration to say that people's lives have been completely inseparable from these electronic products.

However, with the continuous improvement of people's living standards, we have higher and higher requirements for the quality of electronic products. Electronic products are developing in the direction of intellectualization and humanization. Ordinary electronic products can no longer meet people's growing material needs. For example, mobile phones initially only function as communication, but now smartphones can integrate a series of functions such as communication, social interaction, shopping, games and so on. Therefore, intelligence has become the development direction of electronic products.

This paper introduces the intelligent design of table lamp. Intelligent desk lamp based on single chip computer has human infrared detection module, illumination detection module and PWM manual dimming module. It can realize a series of functions such as people walking out, people lighting up, light intensity automatically dimming, light dimming automatically brightening, manual dimming light. Compared with ordinary incandescent lamp, it has great advantages. It is not only green and energy-saving, but also more humane and intelligent.

Keywords: Single chip microcomputer; Table lamp; PWM； Human body induction

目录

第1章 绪论 1

1.1课题背景 1

1.2课题意义 1

1.3台灯的发展现状 2

第2章 系统总体方案设计 3

2.1 设计要求 3

2.2 方案选择和论证 3

2.2.1 单片机的选择 3

2.2.2 显示方案的选择 3

第三章 系统硬件设计 5

3.1 整体方案设计 5

3.1系统概述 5

3.2 最小系统模块 5

3.2.1 STC89C52简介 5

3.2.2 最小系统电路 6

3.3 LED照明模块 7

3.3. 1 LED灯的特点 7

3.3.2 LED照明电路原理图 8

3.4 光照强度采集电路 8

3.4.1光敏电阻介绍 8

3.4.2 ADC0832简介 9

3.4.3 光照强度采集电路 10

3.7电源介绍 12

第4章 软件设计 14

4.1 程序语言及开发环境 14

4.2 程序流程图设计 14

4.2.1 总体程序流程图设计 14

4.2.2 模数转换程序设计 15

4.2.3 PWM调光程序设计 16

第5章 硬件调试与分析 21

5.1系统调试 21

5.1.1 光线采集模块的调试 21

5.1.2人体红外检测模块试................................................................................................................21

5.2调试分析............................................................................................................................................22

第6章 总结 23

致 谢 24

参考文献 25

附 录 26