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智能臺燈論word版(已修改)

2025-01-19 16:32 本頁面
 

【正文】 《工程實踐》 論文 論文題目 智能臺燈 學生姓名 吳 楊 銀 石 專業(yè) 自動化 班級 自動化 112 指導教師 職稱 副教授 二 O 13年 11 月 摘要 生活中,臺燈是人們學習工作的必需品,可是人常常會因為忘記關燈離開,導致極大的電能耗費。同時晚上房間較暗,人們摸黑去找臺燈開關又顯得尤為很困難,甚至有可能發(fā)生危險。有了智能臺燈,這些問題便迎刃而解。 智能臺燈能夠做到自動亮滅、自動調節(jié)亮度的功能。當環(huán)境光線暗到一定程度,且周圍有人存在的時候,臺燈便會自動亮起,并且根據(jù)環(huán)境自動調節(jié) LED管發(fā)光強度,從而保護使用者的視力。當使用者離開,或者環(huán)境光足夠強的時候,臺燈會自動關閉,減少電能的消耗,延長臺燈的使用壽命。 本智能臺燈項目使用 STC公司生產的 STC12C5A60S2單片機的作為核心處理系統(tǒng),使用 RE200B人體紅外熱釋傳感器結合 BISS0001紅外熱釋處理芯片,構成人體紅外感應模塊,可以對靠近的人體熱紅外信號做出反應并反饋信號給單片機處理;光敏電阻作為光敏傳感器,作用是采集環(huán)境光信號,反饋給單片機不同的模擬電壓值,通過 STC12系列單片機內部自帶的 A/D轉換功能實現(xiàn)單片機對環(huán)境光強弱的判斷,從而進一步控制調節(jié) LED發(fā)光二極管的 PWM占空比,調節(jié)臺燈的發(fā)光強度。 關鍵詞: 紅外熱釋; STC12單片機;光敏電阻; PWM波; A/D轉換; LED燈 The intelligent desk lamp Abstract Life, study and work lamp is a necessity for people , but people often fet to turn off the lights because the left led to a great power consumption. Meanwhile dark room at night , people go to the dark lamp switch and it is particularly difficult, and may even be dangerous. With intelligent lamp, these problems will be solved. Intelligent lamp can do automatic light off, automatically adjust brightness. When the ambient light is dark to a certain extent , and the presence of people around when the lamp will automatically turn on and automatically adjust the LED luminous intensity depending on the environment , thus protecting the user39。s eyesight . When the user leaves , or when the ambient light is strong enough , lamp will automatically turn off to reduce power consumption and extend lamp life. The project uses intelligent lamp produced STC12C5A60S2 STC microcontroller as the core processing system, using RE200B pyroelectric infrared sensor bined with human BISS0001 pyroelectric infrared processing chip , constitute human infrared sensor module can react to body heat near infrared signals feedback signal to the microcontroller processing 。 photosensitive resistance as light sensors , the role is to collect ambient light signal, the feedback to the microcontroller different analog voltage value by STC12 series MCU internal builtin a / D conversion MCU judgment on the strength of the ambient light to further adjust the LED lightemitting diode control PWM duty cycle, adjusting lamp luminous intensity. Key words:infrared pyroelectric。 STC12 MCU。 photosensitive resistance。 PWM wave。 A / D converter。 LED lights 目錄 1 引言 ........................................................................................................................................... 1 項目概述 ............................................................................................................................. 1 設計目的 ............................................................................................................................. 1 設計任務 ............................................................................................................................. 1 研究思路和方法 ................................................................................................................. 1 2 項目總體方案設計 ................................................................................................................... 2 系統(tǒng)原理框圖和工作原理 ................................................................................................. 3 系統(tǒng)原理框圖 .........................................................
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