畢業(yè)論文-基于at89c51單片機(jī)的火災(zāi)報(bào)警器設(shè)計(jì)-wenkub
2023-01-27 11:53:33 本頁面
【正文】 to digital signal conversion, and then by the microcontroller to determine whether the scene of fire. If a fire occurs, the system will drive the buzzer and LED indicator alarm. The system mainly by the smoke sense data collection module, MCU control module, drive the sound and light alarm module, as the core and high sensitivity of ion smoke sensor and temperature sensor with high performance single chip, and the use of sound and the indicator lamp two types of alarm, alarm, greatly improve the accuracy and reliability of the system. Key words: fire alarm smoke detector AT89C51 MCU DS18B20 四川師范大學(xué)成都學(xué)院課程設(shè)計(jì)報(bào)告 III 目 錄 1 緒論 ................................................................................................................ 1 課題研究背景 ......................................................................................... 1 國內(nèi)外火災(zāi)報(bào)警器研究歷史 ............................................................................................... 1 火災(zāi)報(bào)警技術(shù)的發(fā)展趨勢 ................................................................................................... 3 2 火災(zāi)報(bào)警器系統(tǒng)總體方案設(shè)計(jì) ..................... 3 火災(zāi) 產(chǎn)生的原理 ................................................................................................................... 4 系統(tǒng)設(shè)計(jì)要求 ....................................................................................................................... 4 3 系統(tǒng)硬件設(shè)計(jì) ................................... 5 煙感傳感器 .......................................................................................................................... 5 煙感傳感器選擇 ....................................................................................................... 5 離子式感煙探測器介紹 ........................................................................................... 5 溫度傳感器 .......................................................................................................................... 6 溫度傳感器選擇 ....................................................................................................... 6 DS18B20 工作原理 .................................................................................................... 6 DS18B20 特性 ............................................................................................................. 7 DS18B20 注意事項(xiàng) .................................................................................................... 8 單片機(jī)芯片的選擇 ............................................................................................................... 8 AT89C51 簡介 ............................................................................................................ 9 AT89C51 管腳功能說明 .......................................................................................... 10 4 火災(zāi)報(bào)警器軟件實(shí)現(xiàn)與調(diào)試 ...................... 11 信號處理電路 ...................................................................................................................... 11 聲光報(bào)警電路 ...................................................................................................................... 12 聲報(bào)警電路 ............................................................................................................. 12 光報(bào)警電路 ............................................................................................................. 13 系統(tǒng)調(diào)試 ............................................................................................................................ 13 編程 KEIL 環(huán)境介紹 ..........................................................
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