【正文】 1 目錄 摘 要 ......................................................................... 錯(cuò)誤 !未定義書簽。 Abstract ....................................................................... 錯(cuò)誤 !未定義書簽。 1 方案設(shè)計(jì) .................................................................................................. 1 理論分析 ............................................................................................... 2 設(shè)計(jì)方案論證與選擇 .......................................................................... 2 探測(cè)點(diǎn)和控制終端處理器的選擇 ................................................... 2 無(wú)線收發(fā)芯片的選擇 ....................................................................... 2 溫度傳感的選擇 ............................................................................... 3 光電傳感的選擇 ............................................................................... 3 顯示器件的 選擇 .............................................................................. 3 整體系統(tǒng)設(shè)計(jì)框圖 .............................................................................. 4 2 各模塊的硬件設(shè)計(jì)與核心電路 ............................................................. 5 自制無(wú)線收發(fā)電路 .............................................................................. 5 無(wú)線發(fā)射電路 ................................................................................... 5 無(wú)線接收電路 .................................................................................. 5 傳感模塊 ............................................................................................... 8 3 DS18B20 無(wú)線收發(fā)模塊程序流程圖 ..................................................... 8 參考文獻(xiàn)： ............................................................................................... 11 附錄 1 完整電路圖 ............................................................................. 12 附錄 2 實(shí)物圖照片 .................................................................................. 13 附錄 3 軟件程序源代碼 ......................................................................... 15 1 2022 年全國(guó)大學(xué)生電子設(shè)計(jì)競(jìng)賽試題 無(wú)線環(huán)境監(jiān)測(cè)裝置 摘要 ： 本系統(tǒng)是由單片機(jī) AT89C52 作為主控芯片，選用 DS18B20 作為環(huán)境的溫度采集芯片，以及用光電傳感器對(duì)周圍環(huán)境的光照進(jìn)行探測(cè)。把DS18B20 采集回的當(dāng)前環(huán)境下的溫度數(shù)據(jù)和光電 傳感器采集回來(lái)的光照情況的數(shù)據(jù)傳送給探測(cè)點(diǎn)的 AT89C52,進(jìn)行相關(guān)的數(shù)據(jù)處理。然后把信息通過無(wú)線發(fā)射模塊傳送給控制終端的無(wú)線接收模塊。在控制終端把接收回來(lái)的數(shù)據(jù)經(jīng)過主控芯片 AT89C52 進(jìn)行處理。然后傳送給 LCD12864，對(duì)探測(cè)點(diǎn)的溫度和光照情況進(jìn)行實(shí)時(shí)顯示。 經(jīng)過測(cè)試，自制的無(wú)線收發(fā)模塊 ，其 無(wú)線傳輸載波頻率為 27MHZ完全符合要求， 探測(cè)時(shí)延 在 2s 以內(nèi)， 天線與探測(cè)點(diǎn)的距離在 50 厘米以上， 有比較好的數(shù)據(jù)傳輸功能。溫度數(shù)據(jù)經(jīng)過編碼后通過無(wú)線傳輸?shù)木瓤刂圃?1 攝氏度以內(nèi)。 整個(gè)系統(tǒng) 基本上 達(dá)到了設(shè)計(jì)要求。 關(guān)鍵字 ： 單片機(jī) AT89C51,無(wú)線發(fā)射，無(wú)線接收， DS18B20， LCD12864。 Abstact:This system uses the AT89C52 microcontroller as the master chip, chosing DS18B20 as the environmental temperature collecting chips and using the photoelectric sensors to detect the ambient light. The temperature data from DS18B20 and the data from the optical sensors, about the current environment, are transmitted to the the associated data is processed. And the processed data is transmited to the control terminal of the wireless receiver module through the wireless transmitter the control terminal, the received data is processed by the master chip AT89C52 and then send it to LCD12864. Lastly the detection point temperature and light conditions in is realtime displayed. Test proves that the selfproduce wireless transceiver module is accurate, the wireless carrier frequency of 27MHZ fully ply with the requi