溫室大棚溫濕度測控系統軟件設計

電氣工程論文編號:DQ094   論文字數:21192,頁數:57

目錄

摘 要 II
Abstract III
1  前言 1
1.1  選題的背景與意義 1
1.2  溫室測控技術的發展狀況和趨勢 1
2  系統的研究與設計 2
2.1  研究內容 2
2.2  總體方案 2
2.3  硬件系統設計 2
2.4  溫濕度采樣系統 4
2.5 系統仿真 5
 2.5.1系統仿真圖 5
2.5.2  主要組件簡介 5
3  軟件系統設計 7
3.1 系統初始化模塊 7
3.2 鍵盤顯示模塊 8
3.3 數據采集模塊 9
3.4  溫濕度控制模塊 10
3.5  報警模塊 10
4  系統調試方案 11
4.1 系統電路的調試 11
4.2  功能模塊的調試方案 11
5總 結 12
致  謝 13
參考文獻 14
附錄 15

摘 要
 
 隨著現代工業生產與電子技術的聯系越來越緊密，溫、濕度測量在各個行業和領域中得到了廣泛運用，實施對溫、濕度的實時監控，對保證生產安全因素，提高勞動效率，改善生產環境有很重大的應用價值。
 對于溫室的監測系統，溫濕度環境條件是重要的。本課題針對溫室大棚內溫、濕度實時測量進行設計。采用DHT90專用芯片作為溫、濕度傳感器，通過其內部信號處理與模數轉換，將輸出數據送入AT89C52單片機進行數據處理與顯示。論文分析了DHT90的工作原理，設計了完善的溫、濕度實時測量系統。硬件設計采用Proteus 7 Professional工具，軟件設計采用Keil uVision2版本c語言編程。
 系統設計完成后，功能穩定可靠，且具有聲音與發光管報警、時鐘顯示等擴展功能。

關鍵字  溫度測量；濕度測量；預值報警；時鐘顯示
Abstract

With the modern industrial production and electronic technology becoming closer than ever before, temperature measuring and humidity measuring have been widely used in many industry applications. Monitoring temperature and humidity can help to ensure the safety of work house, enhance labor efficiency and also has a great practical value in improving the producing environment. Monitoring system for the Greenhouse storage, environmental conditions of the temperature and humidity is important. The design was mainly for the measuring of temperature and humidity inside the Greenhouse. DHT90 was chosen as a temperature and humidity sensor. After series of internal signal processing and analog-to-digital conversion, digital DATA were sent into AT89C52 single-chip microcomputer for the calculation and finally displayed on a monitor. This study analyzed the operational principle of DHT90, design the perfect system for measuring temperature and humidity in real-time. Took Proteus 7 Professional as a tool to design hardware, and utilized Keil uVision2 Version to design the software in the form of C language. When the design has been accomplished, system was able to perform stably and output reliable DATA, and had some extra functions like voice &LED alarm and time display.
 
Keywords  Temperature measuring；Humidity measuring；predefined warning gate；time display