【正文】 2020 畢業(yè)設計論文 基于單片機的 溫濕度監(jiān)控報警 系統(tǒng)設計 2020 畢業(yè)設計論文 摘要 溫度、濕度和人類的生產、生活有著密切的關系，尤其是在醫(yī)學、電子電力、航天航空、食品發(fā)酵，農業(yè)生產等領域中對溫濕度的要求尤其嚴格，是最常見最基本的參數(shù)，例如機械、電子、石油、化工等各類工業(yè)中廣泛需要對溫度濕度的實時檢測與控制。并且隨著人們生活水平的提高，人們對自己的生存環(huán)境越來越關注。而空氣中溫濕度的變化與人體的舒適度和情緒都有直接的影響，所以對溫度濕度的檢測及控制就非常有必要了。 使用 STC89C52 單片機設計溫濕度監(jiān)控報警系統(tǒng)，可以即時精確 的反應溫室內外的溫度以及濕度的變化。完成諸如升溫到特定的溫度、降溫到特定的溫度。在溫度上下限范圍內保持恒溫等多種控制方式，在濕度控制方面也是如此。將此系統(tǒng)應用到溫室當中無疑為植被生長提供了更加適宜的環(huán)境。對于大棚種植和花圃、花卉栽培，必須在某些特定環(huán)境安裝溫濕度裝置對其進行監(jiān)控。本系統(tǒng)可以及時、精確的反映室內外的溫度以及濕度的變化，能夠滿足溫濕度的控制要求。 關鍵詞： 溫濕度 監(jiān)控 STC89S52 2020 畢業(yè)設計論文 Abstract Temperature, humidity and has close relation with the human production and living, especially in medicine, electronics, electric power, aerospace, food fermentation, the requirements for temperature and humidity in areas such as agricultural production is particularly strict, is the most mon is the most basic parameters, such as machinery, electronics, petroleum, chemical industry etc widely needed in realtime detection and control of temperature, humidity. And as people living standard rise, people for their own survival environment more and more attention. And the body39。s fort level with the change of temperature and humidity in the air and mood has a direct effect, so the detection and control of the temperature humidity is very necessary. Using a STC89C52 singlechip microputer temperature and humidity monitoring alarm system, can realtime accurate reaction inside and outside the greenhouse temperature and humidity changes. Finish such as heating up to a specific temperature and cooling to a specific temperature. In upper and lower temperature range constant temperature control of a variety of ways, so in terms of humidity control. Will no doubt of this system is applied to the greenhouse for vegetation growth provide a more fortable environment. For greenhouses planting and flower beds, flower cultivation, must be installed in some specific environment to monitor the temperature and humidity devices. This system can timely and accurately reflect the change of indoor and outdoor temperature and humidity, can satisfy the requirement of the temperature and humidity control. Keywords: Temperature and humidity, monitoring, STC89S52 2020 畢業(yè)設計論文 目錄 摘要 ........................................................................................................... II Abstract ....................................................................................................III 目錄 ......................................................................................................... IV 1 總體設計概述 ....................................................................................... 1 系統(tǒng)的主要功能 ......................................................................... 1 系統(tǒng)的工作原理 ......................................................................... 1 總體設計 ..................................................................................... 2 總體設計框圖 ....................................................................... 2 總體設計工作流程 ............................................................... 3 2 系統(tǒng)硬件設計 ....................................................................................... 4 主控模塊設計 ............................................................................. 4 STC89C52 概述 ..................................................................... 4 時鐘電路與復位電路 ........................................................... 7 電源模塊設計 ............................................................................. 8 DHT11 傳感器模塊設計 ............................................................. 8 DHT11 傳感器 ....................................................................... 8 DHT11 傳感器模塊電路設計 ............................................. 10 1602 液晶顯示模塊設計 ........................................................... 11 1602 液晶顯示屏 ................................................................. 11 1602 液晶顯示屏參數(shù) ......................................................... 11 1602 液晶顯示模塊電路設計 ............................................. 13 閾值設置模塊設計 ................................................................... 14 報警模塊設計 ........................................................................... 15 蜂鳴器報警模塊設計 ......................................................... 15 發(fā)光二極管報警模塊設計 ................................................. 16 24C02 數(shù)據(jù)存儲模塊 ................................................................ 16 2020 畢業(yè)設計論文 24C02 數(shù)據(jù)存儲器 .............................................................. 16 24C02 數(shù)據(jù)存儲器模塊電路設計 ...................................... 17 系統(tǒng)總體電氣原理圖 ............................................................... 18 3 系統(tǒng)軟件設計 ..................................................................................... 19 4 系統(tǒng)調試 ............................................................................................. 21 總結 ......................................................................................................... 22 致謝 ......................................................................................................... 23 參考文獻 ................................................................................................. 24 附件 1 系統(tǒng)程序 .................................................................................... 25 主程序 .................................................................................... 25 24C02 程序 ............................................................................. 30 DHT11 傳感器程序 ................................................................ 33 1602 程序 ................................................................................ 35 附件 2 PCB板 ........................................................................................ 39 附 件 3 實物圖 .