畢業(yè)設(shè)計---基于單片機(jī)的糧倉溫濕度控制系統(tǒng)設(shè)計-畢業(yè)設(shè)計-全文預(yù)覽
【正文】 ............... 1 ............................................................................................................. 1 .......................................................... 2 ..................................................................................................... 2 .................................................................................................. 2 介紹： .................................................................................................. 2 ............................................................................................................... 4 采集電路 .......................................................................................................... 5 ： ................................................................... 5 ．多路濕度檢測信號的實(shí)現(xiàn) ................................................................................ 5 .......................................................................................................... 6 ......................................................................................................... 7 ............................................................................................. 8 串口電路 ..................................................................................................... 8 ...................................................................................................... 8 ...................................................................................................... 8 ............................................................................................................... 8 ．顯示電路 ............................................................................................................ 8 ................................................................................................ 10 ．風(fēng)機(jī)、空調(diào)機(jī)、加濕機(jī)驅(qū)動電路 .................................................................. 10 ．報警接口電路 .................................................................................................. 11 電平轉(zhuǎn)換電路 ................................................................................... 11 ......................................................... 12 、濕度測控系統(tǒng)軟件 ................................................................................. 12 .................................................................................................... 12 ................................................................................................. 13 PC 機(jī)接口軟件 ................................................................................................ 13 ............................................................... 14 1 本設(shè)計以 糧倉 室內(nèi)外溫、濕度測控電路為核心，以上位 PC 機(jī)為系統(tǒng)人機(jī)接口，測控電路與上位 PC機(jī)通過串行通信方式實(shí)現(xiàn)數(shù)據(jù)交互。人機(jī)接口 Abstract : The paper develops a temperature and humidity controlling system for grain depot .The system is based on a chip microprocessor AT89S52,uses oneline type digitaltemperature sensor DS18B20 and the capacitance humidity sensor HS1100/HS1101 to collect humiture data,realizes the collecting of remote data as well as the setting of measuring an
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