摘要
随着生活节奏的加快和健康意识的提升，合理控制照明时间、根据环境自动调节灯光已成为现代家居照明的重要需求。传统台灯多依赖手动开关，无法根据环境变化自动调节，也难以精准控制使用时长，不仅浪费能源，还可能因长时间使用影响用眼健康。
基于 STC89C52 单片机的智能台灯，整合了 RFID 模块、D203S 人体热释电传感器、5516 光照检测模块、3 个独立按键、LCD1602 显示模块及声光报警装置，实现了照明的自动化控制与智能化管理。系统核心功能包括：通过 RFID 模块识别不同卡片，对应控制台灯点亮时长（半小时和一小时）；借助 D203S 人体热释电传感器检测当前环境是否有人；利用 5516 光照检测模块监测环境光照强度；当检测到人且光照较低时，根据刷卡信息确定台灯点亮时间，剩余一分钟时通过声光报警装置提醒 3 声；支持通过 3 个独立按键设置不同卡片的使用时间和光照最小值；通过 LCD1602 显示模块实时显示当前环境是否有人、光照强度及剩余照明时间。
该系统的实现，有效提升了台灯的智能化水平，实现了按需照明和时长精准控制，既节约了能源，又有助于保护用眼健康，为同类智能照明设备的研发提供了参考，具有较高的实际应用价值。
关键词：STC89C52；智能台灯；RFID 识别；光照检测；自动控制；时长管理
ABSTRACT
With the acceleration of life rhythm and the improvement of health awareness, reasonably controlling lighting time and automatically adjusting lights according to the environment have become important needs of modern home lighting. Traditional table lamps mostly rely on manual switches, unable to automatically adjust according to environmental changes, and it is difficult to accurately control the usage duration, which not only wastes energy but also may affect eye health due to long-term use.
The smart table lamp based on the STC89C52 microcontroller integrates RFID module, D203S human pyroelectric sensor, 5516 light detection module, 3 independent buttons, LCD1602 display module and sound-light alarm device, realizing automatic control and intelligent management of lighting. The core functions of the system include: identifying different cards through the RFID module, corresponding to controlling the lighting duration of the table lamp (half an hour and one hour); detecting whether there is a person in the current environment by means of the D203S human pyroelectric sensor; monitoring the ambient light intensity with the 5516 light detection module; when a person is detected and the light is low, determining the lighting time of the table lamp according to the card swiping information, and reminding 3 times through the sound-light alarm device when there is one minute left; supporting the setting of different card usage times and minimum light values through 3 independent buttons; real-time displaying whether there is a person in the current environment, light intensity and remaining lighting time through the LCD1602 display module.
The implementation of this system effectively improves the intelligence level of the table lamp, realizes on-demand lighting and precise duration control, which not only saves energy but also helps protect eye health, provides a reference for the research and development of similar intelligent lighting equipment, and has high practical application value.
Keywords:STC89C52; Smart table lamp; RFID identification; Light detection; Automatic control; Duration management
目录
第 1 章 绪论
1.1 研究的目的及意义
1.2 国内外发展情况
1.3 本文主要研究内容
第2章 设计思路与方案论证
2.1 主要元器件选择
2.1.1 主控芯片选择
2.1.2 RFID 模块选择
2.1.3 人体热释电传感器选择
2.1.4 光照检测模块选择
2.1.5 按键模块选择
2.1.6 显示模块选择
2.1.7 声光报警模块选择
2.2整体设计方案
第 3 章 硬件设计
3.1 主控电路模块
3.2 RFID 模块电路
3.3 人体热释电传感器电路
3.4 光照检测模块电路
3.5 显示模块电路
3.6 按键模块电路
3.7 声光报警模块电路
3.8 台灯 LED 灯驱动电路
第4章 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 LCD1602显示模块子流程设计
4.4 独立按键子流程设计
4.5 ADC模数转换子流程设计
4.6 RFID模块子流程设计
第 5 章 实物测试
5.1 整体实物测试
5.2 RFID 模块功能测试
5.3 人体热释电传感器功能测试
5.4 光照检测模块功能测试
5.5 声光报警模块功能测试
5.6 台灯 LED 灯功能测试
5.7 按键设置与显示功能测试
第 6 章 总结与展望
6.1 总结
6.2 展望
致谢
参考文献
附录
附录一：原理图
附录二：PCB
附录三：主程序
