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【正文】 ature chip DS18B20 gathering, and transmits by digital signal39。s way for the monolithic integrated circuit， and control NFR905 wireless data transmissionby the microcontroller to the temperature data. Automatically disarm the alarm display and overlimit alarm, then the use of infrared controller to adjust the simulation of airconditioning, to achieve the specified the article introduced this control system39。s hardware part, including:Temperature examination electric circuit, temperaturecontrol circuit, wireless munication electric circuit and some interface circuit. The monolithic integrated circuit through carries on corresponding processing to the signal, thus realizes the temperature control goal. In the article also emphatically introduced the software design part. Key words： Microcontroller Wireless Communications Chip Temperature Chip Temperature Control III 目 錄 摘要 ....................................................................................................................................... I Abstract ............................................................................................................................... II 緒論 ...................................................................................................................................... 1 1 溫度控制系統(tǒng)簡介 ...................................................................................................... 3 溫度控制系統(tǒng) ............................................................................................................. 3 系統(tǒng)控制要求 ............................................................................................................. 3 2 溫度控制系統(tǒng)方案設(shè)計 ................................................................................................ 5 方案選擇 ..................................................................................................................... 5 溫度采集 ..................................................................................................................... 6 無線數(shù)據(jù)傳輸 ............................................................................................................. 7 顯示 ............................................................................................................................. 8 紅外控制 ..................................................................................................................... 9 AT89S52 溫度控制系統(tǒng) ........................................................................................... 11 3 系統(tǒng)硬件電路設(shè)計 ........................................................................................................ 16 溫度采集電路 ........................................................................................................... 16 電源電路 ................................................................................................................... 16 數(shù)碼管顯示電路 ....................................................................................................... 16 蜂鳴器報警電路 ..................................................................................................... 17 串口下載電路 ........................................................................................................... 17 無線模塊電路 ........................................................................................................... 18 紅外控制電路 ........................................................................................................... 18 4 系統(tǒng)軟件設(shè)計 .............................................................................................................. 19 溫度控制系統(tǒng)程序流程圖 ....................................................................................... 19 子程序設(shè)計 ............................................................................................................... 20 溫度采集子程序 .................................................................................................... 20 顯示子程序 ............................................................................................................ 22 IV 無線通信子程序 .................................................................................................... 23 5 系統(tǒng)調(diào)試 ...................................................................................................................... 25 溫度采集的調(diào)試 ....................................................................................................... 25 硬件部分 ................................................................................................................ 25 軟件部分 ................................................................................................................ 25 無線數(shù)據(jù)傳輸?shù)恼{(diào)試 ............................................................................................... 26 紅外控制的調(diào)試 ....................................................................................................... 26 結(jié)論 .................................................................................................................................... 27 致謝 .................................................................................................................................... 28 參考文獻(xiàn) ............................................................................................................................ 29 附錄 1 溫度控制系統(tǒng)程序 ................................................................................................ 30 附錄 2 溫度控制系統(tǒng)原理圖 ............................................................................................ 37 附錄 3 設(shè)計制作實物圖 .................................................................................................... 38 1 緒 論 在許多測控現(xiàn)場，傳統(tǒng)數(shù)據(jù)傳輸都是通過有線電纜實現(xiàn)的。隨著射頻、集成電路技術(shù)的發(fā)展，無線通信功能的實現(xiàn)更容易，數(shù)據(jù)傳輸速率更快，抗干擾能力更強(qiáng)，因此，許多應(yīng)用采用了無線傳輸技術(shù)。無線數(shù)據(jù)傳輸與有線數(shù)據(jù)傳輸相比，有諸多優(yōu)點：一是成本低，省去大量布線；二是建網(wǎng)快捷，只需在每個終端連接無線數(shù)據(jù)傳輸模塊和架設(shè)適當(dāng)高度天線；三是適應(yīng)性好，可應(yīng)用于某些特殊環(huán)境；四是擴(kuò)展性好，只需將設(shè)備與無線數(shù)據(jù)傳輸模塊相連接。因此，無線傳輸是一種有效數(shù)據(jù)傳輸方式。所以使用無線傳輸?shù)母呔葴y溫系統(tǒng)可以對生產(chǎn)環(huán)境的溫度進(jìn)行無 線傳輸并且能夠進(jìn)行使操作員可以遠(yuǎn)距離實時了解被測現(xiàn)場的溫度變化情況 ,保證生產(chǎn)的自動化、智能化能夠順利、安全進(jìn)行，從而提高企業(yè)的生產(chǎn)效率。 隨著計算機(jī)技術(shù)的發(fā)展和計算機(jī)技術(shù)在信號處理中的廣泛應(yīng)