【正文】 照明系統(tǒng)設(shè)計(jì) 學(xué) 院： 電氣與信息工程學(xué)院 專 業(yè)： 自動(dòng)化 姓 名： 指導(dǎo)老師： 葛廣軍 完成時(shí)間： 2022 年 5 月 24 日 河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 摘要 摘 要作為一種光源，調(diào)光是很重要的。不僅是為了在家居中得到一個(gè)更舒適的環(huán)境，在今天來說，減少不必要的電光線，以進(jìn)一步實(shí)現(xiàn)節(jié)能減排的目的是更加重要的一件事。該系統(tǒng)硬件電路由四個(gè)部分組成：感光電路、AD 轉(zhuǎn)換電路、單片機(jī)控制電路、發(fā)光二極管驅(qū)動(dòng)電路。軟件部分采用PID 算法，自動(dòng)調(diào)節(jié)環(huán)境光照度。關(guān)鍵詞：發(fā)光二極管，PID 算法，照明,節(jié)能河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） Abstract IAbstractThe quality of dimming of light source is very important. It is not only for a better environment at home. At present, it is also an even more important issue to lessen waste of unnecessary electric light and further achieve the goal of energy saving and emission reduction. What’s more, for light source of LED, it is easier to adjust brightness than fluorescent lamp, energy saving lamp, high pressure sodium lamp and other kinds of lamps. Therefore, we’d better add the function of brightnessadjusting to various kinds of LED lamps.The hardware of adaptive adjustable opticalintensity system is consisted of four parts. They are photosensitive circuit, AD changeover circuit, singlechip microputer control circuit, and LED driving circuit. And the software of the system makes use of PID algorithm to adjust brightness of environment automatically. This design takes 89C52 SCM as controller, use photo conductive resistance to collect luminance of the environment. And the designer adopt pulse width modulation mode to adjust triode, which can help adjust brightness of LED to keep intensity of illumination of the environment at a set level.Keywords: LED,PID,illumination,Energy Saving 河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 目錄 目錄摘 要 ............................................................................................................................IAbstract..........................................................................................................................II第 1 章 緒論 ..................................................................................................................1 選題的背景及意義 ............................................................................................1 選題的背景 ..............................................................................................1 課題的意義 ..............................................................................................3 LED 的國內(nèi)外研究現(xiàn)狀 .....................................................................................3 本課題設(shè)計(jì)內(nèi)容及要求 ....................................................................................3 LED 相關(guān)知識(shí) .....................................................................................................4 LED 的結(jié)構(gòu)及發(fā)光原理 ..........................................................................4 LED 光源的特點(diǎn) ......................................................................................4 LED 的應(yīng)用 ..............................................................................................5第 2 章 系統(tǒng)設(shè)計(jì)原理 ..................................................................................................7 總體設(shè)計(jì)方案 ...................................................................................................7 系統(tǒng)驅(qū)動(dòng)方式選擇 ...........................................................................................8 光照檢測(cè)方式選擇 ...........................................................................................8 人體感應(yīng)方式選擇 ...........................................................................................8 LED 驅(qū)動(dòng)設(shè)計(jì)注意點(diǎn) ........................................................................................9第 3 章 硬件設(shè)計(jì) ........................................................................................................10 電源電路 .........................................................................................................10 感光電路 .........................................................................................................11 手動(dòng)控制電路 .................................................................................................13 延時(shí)時(shí)間選擇電路 .........................................................................................13 單片機(jī)控制電路 .............................................................................................13 AT89C51 簡(jiǎn)介 ...................................................................................14 ADC0832 簡(jiǎn)介 ..................................................................................15 AD 轉(zhuǎn)換電路 .....................................................................................15 時(shí)鐘電路 .........................................................................................................17 發(fā)光二極管驅(qū)動(dòng)電路 .....................................................................................18 相關(guān)計(jì)算 .........................................................................................................19第 4 章 軟件設(shè)計(jì) ........................................................................................................21 主程序流程圖 .................................................................................................21 系統(tǒng)初始化 .....................................................................................................21 人體紅外感應(yīng)子系統(tǒng) .....................................................................................22河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 目錄 手動(dòng)調(diào)節(jié)光強(qiáng)子系統(tǒng) .....................................................................................23河南城建學(xué)院本科畢業(yè)設(shè)計(jì)（論文） 目錄 仿真環(huán)境介紹 .................................................................................................23