【正文】 基于單片機的智能溫室大棚控制系統(tǒng) 長春大學(xué) 1 摘要 溫室是現(xiàn)代農(nóng)業(yè)生產(chǎn)所必需的基本設(shè)備 ， 用它有效地控制溫度、光照、濕度、二氧化碳濃度等是改變植物生長環(huán)境、為植物生長創(chuàng)造最佳條件、避免外界四季變化和惡劣氣候?qū)ζ溆绊懙那疤帷?本設(shè)計以 STC89C52 單片機為核心完成了對空氣溫度、土壤濕度、光照度進(jìn)行數(shù)據(jù)的采集、處理、顯示等系統(tǒng)的基本框圖、工作原理和繼電器控制的設(shè)計的工作。主要內(nèi)容有： （ 1） 通過 單片雙端集成溫度傳感器 AD590 采集實時溫度。（ 2）通過濕度傳感器 HS1100 采集實時濕度。 （ 3） 通過固態(tài)電化學(xué)性二 氧化碳傳感器 TGS4160 采集二氧化碳濃度。 （ 4） 判斷采集到的參數(shù)值與設(shè)置值是否一致 ， 并進(jìn)行繼電器控制。 通過以上設(shè)計可以對植物生長過程中的土壤濕度、環(huán)境溫度、光照度以及二氧化碳濃度進(jìn)行了實時地、連續(xù)地檢測、直觀地顯示并進(jìn)行自動地控制?？朔藗鹘y(tǒng)的人工測量方法不能進(jìn)行連續(xù)測量的弊端 ， 節(jié)省了工作量 ， 并避免了人為的疏漏或錯誤造成的不必要的損失。 關(guān)鍵詞： 單片機 溫度傳感器 濕度傳感器 二氧化碳傳感器 基于單片機的智能溫室大棚控制系統(tǒng) 長春大學(xué) 2 In this paper Greenhouse is essential for modern agriculture basic equipment, use it to effectively control, such as temperature, light, humidity, carbon dioxide concentration is to change the plant growth environment, create the best condition for plant growth, avoid the seasons change and the influence of bad weather. This design to STC89C52 singlechip microputer as the core to plete the air temperature, soil moisture, and light for data acquisition, processing and display system of the basic block diagram, working principle and the design of relay control work. Main contents are: (1) by monolithic integrated temperature sensor AD590 to collect realtime temperature. (2) by the humidity sensor HS1100 gathering realtime humidity. (3) through solid electric chemical carbon dioxide sensor TGS4160 collecting carbon dioxide concentrations. (4) determine whether collected parameter value and set value, and relay control. Through the above can be designed for plants to grow in the process of soil humidity, environment temperature, light and co2 concentration in real time, continuous detection, display visually and automatically control. Overes the traditional continuous measurement of the shortings of manual measurement method does not, and save the workload, and avoid the unnecessary loss caused by the omission or human error. Key words： SCM temperature sensor humidity sensor carbon dioxide sensor 基于單片機的智能溫室大棚控制系統(tǒng) 長春大學(xué) 1 目錄 .......................................................................................................................... 1 課題背景及研究意義 ............................................................................................... 1 國內(nèi) 外溫室控制技術(shù)發(fā)展概況 ................................................................................ 2 國外狀況 .................................................................................................................. 3 國內(nèi)狀況 .................................................................................................................. 3 選題的目的和意義 ..................................................................................................... 3 2. 溫室大棚自動控制系統(tǒng)控制方案設(shè)計 ...................................................... 5 控制方案設(shè)計 .......................................................................................................... 5 系統(tǒng)硬件結(jié)構(gòu) ......................................................................................................... 6 溫室大棚的硬件組成 ................................................................................................ 7 傳感器 ................................................................................................................... 7 單片機控制系統(tǒng)和微機系統(tǒng) ..................................................................................10 溫室大棚的軟件組成 ................................................................................................ 11 單片機軟件設(shè)計 .................................................................................................... 11 測試系統(tǒng)的組成及原理 ...........................................................................................13 測試系統(tǒng)的設(shè)計 ..................................................................................................13 （ 1） 溫度測量電路 .......................................................................................................13 （ 2）濕度測量電路 .........................................................................................................14 （ 3） CO2 含量測量電路 ...................................................................................................15 微處理器系統(tǒng) .....................................................................................................16 程序模塊 ................................................................................................................16 主程序 ..................................................................................................................16 顯示子程序 .......................................................................................................16 A /D 轉(zhuǎn)換測量子程序 ............................................................................................17 顯示數(shù)據(jù)轉(zhuǎn)換子程序 .............................................................................................17 ..............................................................................18 系統(tǒng)設(shè)計 ................................................................................................................18 系統(tǒng)組成 ..............................................................................................................18 系統(tǒng)工作原理 .....................................................................................................19 系統(tǒng)軟件設(shè)計 .........................................................................................................19 上位機軟件設(shè)計 ....................................................................................................19 下位機軟件設(shè)計 .................................................................