【正文】 the field of production are subject to a lot of heating equipment to produce, such as heating furnace to realize heat treatment, crucible resistance furnace to molten metal and with different uses of the temperature control box. With the chip on the different temperature control box control in a great extent for the equipment control brought convenient, easy to use, flexible to control, at the same time, it can maximally improve the accurate degree of parameters such as temperature, ensure production steadily, increase the production efficiency. Therefore, the research of the intelligent temperature control technology has the significance of the research. The intelligent temperature control system design using a lot of materials AT80C52 micro controller and with DS18B20 digital temperature sensor and nRF401 chip with micro power short distance wireless munication technology for remote temperature control, the system can in 25 meters remote control asked. Single chip microputer is used to detect the digital temperature signal and set the temperature, the lower limit of the parison, from the results of the parison of the output of the relay to control equipment. This design adds a mon digital tube to display the temperature and LED lamp to show the working condition of the mon circuit, and increase the flexibility and integrity of the system Key word： Temperature； AT80C52； SCM； Control； Simulation I 目 錄 摘 要 ............................................................................................................... I Abstract ................................................................................................................. II 第 1 章 緒論 .........................................................................................................1 溫度控制系統(tǒng)設(shè)計的背景、發(fā)展歷史及意義 ....................................1 溫度控制系統(tǒng)的目的 ............................................................................1 溫度控制系統(tǒng)完成的功能 ....................................................................2 國內(nèi)外發(fā)展現(xiàn)狀 ....................................................................................2 本章小結(jié) ................................................................................................3 第 2 章 總體設(shè)計方案 .........................................................................................5 方案的系統(tǒng)構(gòu)想 ....................................................................................5 系統(tǒng)方案的確定 ....................................................................................5 傳感器方案 .................................................................................5 短距離無線通信模塊方案 .........................................................6 系統(tǒng)控制及數(shù)據(jù)處理模塊方案 .................................................7 器件的選用 ............................................................................................8 數(shù)字式溫度傳感器的選擇 .........................................................8 無線收發(fā)芯片的選擇 .................................................................9 常用的無線收發(fā)芯片 ...............................................................10 鍵盤顯示模塊的選擇 ............................................................... 11 溫度控制模塊的選擇 ............................................................... 11 本章小結(jié) ..............................................................................................12 第 3 章 硬件電路設(shè)計 .......................................................................................13 設(shè)計原則 ..............................................................................................13 引腳連接 ..............................................................................................13 晶振電路 ...................................................................................13 無線控制接收發(fā)射器 ..........................................................................13 單片機最小系統(tǒng)的設(shè)計 ......................................................................14 顯示電路 ..............................................................................................15 II DS18B20 溫度傳感器電路 ...................................................................15 加熱電路 ..............................................................................................16 半導(dǎo)體制冷器，工作原理 .......................................................16 比例積分電路 ...........................................................................17 報警電路的設(shè)計 ..................................................................................21 收發(fā)電路設(shè)計 ......................................................................................21 本章小結(jié) ............................................................................................22 第 4 章 系統(tǒng)軟件設(shè)計 .......................................................................................23 系統(tǒng)軟件設(shè)計整體思路 ......................................................................23 系統(tǒng)程序流圖 ......................................................................................24 上位機主程序 ...........................................................................24 下位機主程序 ...........................................................................25 收發(fā)控制子程序 ..................................................................................26 發(fā)送控制子程序 .......................................................................26 接收控制子程序 .......................................................................27 溫度控制模塊的設(shè)計 ..........................................................................28 溫度測量子程序 .......................................................................28 PID 控制子程序 .........................................................................29 讀出溫度子程序 .......................................................................29 子程序流程圖 ...............................................................................