基于can總線的樓宇溫度控制系統(tǒng)設(shè)計外文原文及翻譯-資料下載頁
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【導(dǎo)讀】本科生畢業(yè)設(shè)計(論文). 譯文標(biāo)題基于CAN總線的樓宇溫度控制系統(tǒng)設(shè)計。完成時間2021年12月。作者WANZHONG,etc譯名萬忠等國籍中國。測，并對異常情況進(jìn)行報警和控制，試驗表明該系統(tǒng)可靠，能實現(xiàn)節(jié)能目的．。年以來，我國供電形勢從緩和轉(zhuǎn)為全面吃緊，建筑節(jié)能成為熱點問題，其中空調(diào)節(jié)能是最突。SJAl000的CAN通信平臺來實現(xiàn)各節(jié)點的可靠。通信；在此基礎(chǔ)上，由主控制器實現(xiàn)對各檢測。在系統(tǒng)正常工作時，控制臺通過CAN總線發(fā)出一個明確的控制溫度值分布在建筑中的指。CAN總線通信的波特率高達(dá)1Mb／s，最遠(yuǎn)通信距離可達(dá)lOkm；CAN總線通信采用短幀。結(jié)構(gòu)，使得數(shù)據(jù)傳輸?shù)臅r間短，受干擾的概率低，并且CAN總線協(xié)議有良好的檢錯措施，因。慮到使用現(xiàn)場可能有各種各樣的干擾，在CAN控制器和驅(qū)動器之間增加高速光耦隔離器件。控制節(jié)點主要包括CAN總線接口、控制模塊和溫度傳感器DSl8820，系統(tǒng)結(jié)構(gòu)如圖3所。時，連接DSl8820的總線電纜也是有長度限制的，當(dāng)采用普通信號電纜作
【正文】 le is responsible to manage the processors running. When the event occurred, the processors do it will be activated and executed, otherwise the processor will be jumped. The system initialization module establishes the system?s operating environment, including CAN interface initialization, clock chip initialization and so on. The key processor is handle to the key pressed and keyboard input. The CAN information frame processing module realizes the console and between each pitch point munication agreement using the CAN Bus. The LCD and warring processes is handle to delivers the data to the LCD display and control warring circuit to alarm according to the datatime processing module process result demonstration. The datatime processing module is handle to the data which accepts from the CAN Bus and preserved in AT24C128, and control warning circuit to alarm according to the system c time and the temperature value set each room. The interrupt control processor uses to realize the CAN Bus interface munication. The pitch point software design The pitch point receives the data frame from console through the CAN Bus. From these data frame the pitch point obtains each room temperature limit which control. The pitch point reads temperature value through the temperature sensor DS18B20 in each room. Comparing with this room temperature limit value, the pitch point will control the gate of airconditioning system if the value surpass the limit value, And report the room number and the temperature value through the CAN Bus to the console. According to the DS18B20 munication protocol, That the MCU of pitch point controls DS18B20 to achieve the temperature transmission must include three steps: First, the MCU must be reset the sensor DS18B20 before each readwrite. Then, after successfully reset, the MCU send a ROM instruction, finally the MCU transmits the RAM instruction, As this, the MCU can carry on the operation to DS18B20 which prearranges [5]. It must be attention that the MCU should put down the 1Wire bus for 500μs at last to carry out reset. Then pull on to release the bus. After the DS18B20 receives the signal to wait for about 16 ~ 60μs, send out 60 ~ 240μs existences low pulses, the MCU indicate reposition successfully after receiving this signal[6]. When the MCU executes the program to flow diagram which the sensor DS18B20 measured temperature, it sends out the temperature transformation order. The MCU should wait for the sensor DS18B20 returns to the low signal. Once a sensor DS18B20 contacts with the bus not good or broken, the 共 4 頁 第 9 頁 MCU will not read the low signal and will enters the endless loop for waiting. So we use a MCU?s timer interruption to solve this problem in system. 4 Conclusion After the field test, this system can realize the building temperature examination and control this system can be applied to other equipments testing and control in order to realize building intelligent management. While CAN bus is an effective support for distributed industrial control serial munication work, the system can also be widely applied to other needs realtime multipoint measurement and control areas. 中考滿分作文 中考網(wǎng) 中考資源網(wǎng) 上海中考網(wǎng) 北京中考網(wǎng) 中考優(yōu)秀作文 中考語文試卷 中考英語試卷 中考數(shù)學(xué)試卷 中 高考英語試卷 考試卷及答案 高考語文試卷 成人高考試卷 2021 高考試卷 江蘇高考試卷 2021 高考語文試卷 考 試百科網(wǎng)站以考試資訊為核心，提供最新最快最全面的考試資訊，包括報考指南、模擬試題、歷年真題、經(jīng)驗技巧等信息。 考試百科還提供考試咨詢、培訓(xùn)服務(wù)，依托于揚格考試研究院 —— 以考試研究為核心、以提供考試服務(wù)為目的的專業(yè)考試研究機構(gòu)，考試百科積累了優(yōu)厚的師資和豐富的教學(xué)經(jīng)驗。同時，還與眾多知名培訓(xùn)機構(gòu)達(dá)成了合作關(guān)系。 在綜合全國各地公考模擬試卷優(yōu)點的基礎(chǔ)上 ,特意編制一套緊貼 2021 年湖南公考命題精髓的“考前 預(yù)測卷 ”,有利于考生提前適應(yīng)公考試卷的難度、區(qū)分度并有利于提高考生考前心理適應(yīng)共 4 頁 第 10 頁 度。 本套試卷匯集湖南 知名考試命題研究專家、學(xué)科 ... “?歸中反應(yīng) ?之我見 ”發(fā)表在《中學(xué)理科》 2021年第 4 期 14.“2021 年高考理科綜合預(yù)測卷 ”發(fā)表在《常德晚報》 2021 年 5 月 28 日 15.“對一道高考題的再評析 ”發(fā)表在《中學(xué)理科》 2021 年第 11 期 16.“幾個較難離子方程式的書寫 ”發(fā)表在《中學(xué)生 ...
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