單片機溫度報警器設計論文-文庫吧在線文庫
【正文】 在短時間內(nèi)機房溫度升高超出設備正常溫度，導致系統(tǒng)癱瘓或產(chǎn)生火災，這時溫度報警系統(tǒng)就會發(fā)揮應有的功能。 Therefore the tele room belongs to electronic products fever faster, in a short time, room temperature beyond normal temperature, cause the system equipment or produce fire, then paralyzed temperature alarm system will play its function.This paper is to use temperature sensor DS18B20 temperature alarm, automatic measuring current environmental temperature by a single chip microputer AT89C2051 control, and through three seven segment digital pipe display, if the current environmental temperature over this temperature, system warning.Keywords:Microcontroller Temperature alarm Temperature sensor leds Temperature display 一、功能說明該溫度報警器電路是由18B20溫度傳感器作為溫度傳感器材，由AT89C2051 單片機進行數(shù)據(jù)處理。C時，報警發(fā)光二極管發(fā)光，同時繼電器動作。8三、電路原理圖 四、元件清單名稱規(guī)格編號主要功能或作用按鈕6X6X5ANANAN3調(diào)節(jié)報警溫度的值電容30pCC2單片機時鐘振蕩電容10μFC3單片機復位電容470μFC4電源濾波電容104C5電源濾波單片機AT89C2051IC1CPU溫度傳感器DS18B20IC2溫度傳感器穩(wěn)壓塊L7805IC3電路工作于
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