基于51單片機(jī)的濕度測(cè)控系統(tǒng)的研究全套資料-全文預(yù)覽
【正文】 1 實(shí)驗(yàn)室濕度測(cè)控的現(xiàn)狀與發(fā)展 ...................................................................... 2 傳統(tǒng)的分立式濕度測(cè)量 ......................................................................................2 模擬集成濕度傳感器測(cè)量 ..................................................................................2 智能濕度傳感器測(cè)量 ..........................................................................................2 本課題的設(shè)計(jì)方案 ....................................................................................... 3 第二章 濕度測(cè)量電路設(shè)計(jì) .............................................................................................................................4 傳感器的認(rèn)識(shí) .............................................................................................. 4 傳感器的靜態(tài)特性 ..............................................................................................4 傳感器的動(dòng)態(tài)特性 ..............................................................................................5 濕度傳感器的選擇 ....................................................................................... 6 濕度及其表示方法 ..............................................................................................6 濕度傳感器 HS1101 ............................................................................................6 濕度測(cè)量電路 .............................................................................................. 8 NE555 時(shí)基電路 ..................................................................................................8 基于 555 振蕩電路的濕度測(cè)量電路設(shè)計(jì) .........................................................9 第三章 核心電路的設(shè)計(jì) .............................................................................................................................. 10 ADC0809 模數(shù)轉(zhuǎn)換器 .................................................................................10 ADC0809 應(yīng)用簡(jiǎn)介 .......................................................................................... 10 測(cè)濕電路與單片機(jī)連接 ....................................................................................11 濕度誤差補(bǔ)償插值法子程序 ............................................................................11 單片機(jī)電路的設(shè)計(jì) ......................................................................................12 MCS51單片機(jī) ................................................................................................. 12 AT89S51 單片機(jī) ............................................................................................... 13 時(shí)鐘晶振電路和復(fù)位電路 ............................................................................... 13 總體電路系統(tǒng) .............................................................................................14 LED 報(bào)警設(shè)計(jì) ................................................................................................... 14 系統(tǒng)總設(shè)計(jì) ........................................................................................................ 15 電路 PCB版圖設(shè)計(jì) .....................................................................................17 iv iv 第四章 單片機(jī)與 PC間的串行通訊 .......................................................................................................... 20 RS232C 接口 ............................................................................................20 單片機(jī)和 PC通信連接 ................................................................................20 簡(jiǎn)單軟件設(shè)計(jì) .............................................................................................22 下位機(jī)軟件設(shè)計(jì) ............................................................................................... 22 上位機(jī)程序設(shè)計(jì) ............................................................................................... 23 第五章 結(jié) 論 ................................................................................................................................................. 24 參考文獻(xiàn) ................................................................................................................................................................ 25 致謝 ......................................................................................................................................................................... 26 附錄 ......................................................................................................................................................................... 27 1 第一章 前言 概述 濕度，被定義為表示大氣干燥程度的物理量。 third is a Micro Controller Unit to municate with the PC interface and software systems for circuit design. The design of the system is still in the theoretical stage, and it is to demonstrate a variety of programs and collected information on the various proposed a practical indoor humidity monitoring systems. Satisfy the system of small laboratory humidity measurement and control system requirements, the indoor humidity has been to achieve the status of a prehensive, realtim
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