【正文】 本科畢業(yè)設(shè)計(jì) 題 目 糧倉溫濕度無線監(jiān)控系統(tǒng) 設(shè)計(jì) 姓 名 ****** 專 業(yè) 電子科學(xué)與技術(shù) 學(xué) 號(hào) ********* 指導(dǎo)老師 **** 二○一四年四月 目 錄 摘 要 ......................................................................................... 錯(cuò)誤 !未定義書簽。 Abstract ..................................................................................... 錯(cuò)誤 !未定義書簽。 1 緒論 ....................................................................................................................... 1 課題研究的意 義 ............................................................................................ 1 國內(nèi)外交通控制技術(shù)研究現(xiàn)狀 .................................................................... 1 研究內(nèi)容 ........................................................................................................ 2 2 單片機(jī)無線控制系統(tǒng)方案的設(shè)計(jì)與論證 ........................................................... 4 設(shè)計(jì)思路 ........................................................................................................ 4 方案論證 ........................................................................................................ 4 單片機(jī)的應(yīng)用 ................................................................................................ 5 單片機(jī)控制電路主要功能特點(diǎn) .................................................................... 6 方案總結(jié) ........................................................................................................ 6 3 系統(tǒng)總體方案及硬件設(shè)計(jì) ................................................................................... 7 糧倉溫濕度控制電路要求 ............................................................................ 7 總體硬件設(shè)計(jì) ................................................................................................ 7 糧食溫濕度檢測器 ........................................................ 錯(cuò)誤 !未定義書簽。 聲音報(bào)警電路 ................................................................................................ 9 STC89C52單片機(jī)簡介 ................................................................................... 9 STC89C52單片機(jī)引腳圖和實(shí)物圖片 ................................................ 10 STC89C52單片機(jī) 主要 特性 ................................................................ 11 STC89C52單片機(jī)參數(shù) ....................................................................... 11 STC89C52RC引腳功能說明 ................................. 錯(cuò)誤 !未定義書簽。 DHT11數(shù)字溫濕度傳感器簡介 ............................. 錯(cuò)誤 !未定義書簽。 DHT11數(shù)字溫濕度傳感器技術(shù)參 ........................ 錯(cuò)誤 !未定義書簽。 DHT11數(shù)字溫濕度傳感器接線圖 ....................... 錯(cuò)誤 !未定義書簽。 DHT11數(shù)字溫濕度傳感器電氣特性 .................... 錯(cuò)誤 !未定義書簽。 DHT11數(shù)字溫濕度傳感器應(yīng)用信息 ................... 錯(cuò)誤 !未定義書簽。 4 系統(tǒng)軟硬件的仿真調(diào)試 ..................................................................................... 18 proteus軟件介紹 ........................................................................................... 18 主要調(diào)試過程 .............................................................................................. 19 結(jié) 論 ....................................................................................................................... 20 致 謝 ....................................................................................................................... 20 參考文獻(xiàn) ................................................................................... 錯(cuò)誤 !未定義書簽。 附 錄 1 單片機(jī)源程序 ......................................................................................... 23 附 錄 2 實(shí)做圖片 ................................................................................................. 30 糧倉溫濕度無線控制設(shè)計(jì) I 糧倉溫濕度無線監(jiān)控系統(tǒng) 摘 要 我國是糧食大國。在糧食的儲(chǔ)藏 的 過程中 ， 由于糧倉溫濕度異常而造成糧食變質(zhì) ， 帶來的經(jīng)濟(jì)損失是非常驚人的 。 目前我國大多數(shù)糧食倉儲(chǔ)單位采用測 溫 儀器 與人工抄錄 、 管理相結(jié)合的傳統(tǒng)方 法 ，因此設(shè)計(jì)智能糧倉溫濕度監(jiān)控系統(tǒng) ，使之 提高了工作效率 ， 實(shí)現(xiàn)糧倉溫濕度的隨時(shí)速遞監(jiān)控糧倉的溫濕度 ， 是倉儲(chǔ)單位非常急缺解決的重要問題。在實(shí)際的生產(chǎn)過程中 ， 在仿真和模擬試驗(yàn) 中 ， 驗(yàn)證了該系統(tǒng) 的可行性 ， 分析了該系統(tǒng)在解決實(shí) 際 問題時(shí)的不足之處， 并提出了更進(jìn)一步的改進(jìn)的辦法 ,每個(gè)糧倉都有一個(gè)節(jié)點(diǎn) ，該節(jié)點(diǎn)以 STC89c52 單片機(jī) 為核心的節(jié)點(diǎn) ,主要有 DHT11 數(shù)字溫濕度傳感器 完成糧倉內(nèi)溫濕度的采集，處理，顯示并做出判斷實(shí)現(xiàn)該裝置的溫濕度報(bào)警和控制，還通過 CAN 總線傳送至上位機(jī)檢測的有關(guān)信息 。 上位機(jī)通過接收智能節(jié)點(diǎn)傳來的檢測信息 ， 了解各糧倉溫濕度情況 ，并且 能根據(jù)各智能節(jié)點(diǎn)地址 ， 設(shè)定任何一個(gè)糧倉溫濕度的報(bào)警溫度值 ， 從而解決了多個(gè)糧倉的溫濕度監(jiān)控問題。 關(guān)鍵詞：溫濕度測量； STC89c52 單片機(jī)； DHT11 數(shù)字溫濕度傳感器 糧倉溫濕度無線控制設(shè)計(jì) II THE DESIGN OF THE GRANARY TEMPERATURE AND HUMIDITY MONITORING SYSTEM Abstract Our country is food superpower. In the process of grain storage, food metamorphism caused by abnormal granary temperature and humidity, the economic loss is staggering. At present our country most of the food storage unit using temperature measuring instrument and artificial transcribing, management of bining the traditional methods, so the design of intelligent monitoring system of granary temperature and humidity, improve the working efficiency, realize the express delivery at any time monitoring of granary temperature and humidity of granary temperature and humidity, storage unit is very soughtafter solve an important problem. In the actual production process, the simulation and simulation experiment, proves the feasibility of the system, analyzed the system deficiency when solving practical problems, and further improvement measures are put granary has a node, the node with STC89c52 singlechip microputer as the core node, DHT11 digital temperature and humidity sensor to plete the main granary temperature and humidity of the acquisition, processing, display and judge the implementation of the device temperature and humidity alarm and control, and also through the CAN bus transmits information about the first machine testing. PC by receiving intelligent node from the test information, understand the granary temperature and humidity conditions, and can according to each intelligent node address, set any a granary temperature and humidity alarm temperature, so as to solve the prob