倉庫溫濕度監測系統設計

電氣自動化論文編號:ZD1013    論文字數:14643,頁數:46

目 錄

摘要……………………………………………………………………… … …I
Abstract…………………………………………………………………… ………Ⅱ
緒論……………………………………………………………………………………1
1.1  選題背景………………………………………………………………………1
1.2  設計過程及工藝要求.……………………………………………1
2  方案的比較與論證………………………………………………………………2
2.1  溫度傳感器的選擇…………………………………………………………………2
2.2  濕度傳感器的選擇…………………………………………………………. 2
2.3  信號采集通道的選擇……………………………………………………… . 3
3  系統總體設計……………………………………………………………………..5
3.1  信號采集……………………………………………………………………………5
3.1.1  溫度傳感器………………………………………………………………5
3.1.2  濕度傳感器………………………………………………………11
3.1.3  多路開關…………………………………………………………14
3.2  信號分析與處理…………………………………………………….15
3.2.1  A/D轉換………………………………………………………………………15
3.2.2  單片機8031…………………………………………………………19
3.2.3  存儲器的設計…………………………………………………………………21
3.2.4  數據存儲器的掉電保護………………………………………………………25
3.2.5  系統時鐘的設計……………………………………………………………25
3.3  顯示與報警的設計……………………………………………………………26
3.3.1  顯示電路…………………………………………………………26
3.3.2  報警電路…………………………………………………………27
4  軟件設計………………………………………………………………………29
主程序流程圖……………………………………………………………………30
T0中斷流程圖……………………………………………………………………31
溫度采樣子程序流程圖……………………………………………………32
鍵盤掃描程序流程圖……………………………………………………33
報警子程序流程圖……………………………………………………34
5  總 結 …………………………………………………………………35
致 謝…………………………………………………………………………………36

摘  要
 對于倉庫的監測系統，溫濕度環境條件是重要的，但溫濕度也是最不易保障的指標，針對這一情況，研制可靠且使用的溫濕度控制器顯得非常重要。本文介紹了環境溫濕度實時測控裝置的研制思路和方法。該溫濕度實時控制裝置可在-30℃--+50℃和10%--100%RH（相對濕度）的范圍內任意設定溫濕度值，可實現環境溫度、濕度的實時測量，并附有通信接口可方便地實現與計算機的實時通信，而且便于功能的擴展，可保證溫度、濕度滿足設計指標，能方便地應用于倉庫的監測系統。本系統是通過由單片機控制的LED顯示器和鍵盤部分，外部存儲器及其外設接口組成的，微機的主要任務是完成數據采集對數據進行處理，數據存儲的邏輯判斷，以及管理顯示器和鍵盤來實現人機對話。

關鍵詞：倉庫，溫濕度測量

Abstract
    Monitoring system for the warehouse storage, environmental conditions of the temperature and humidity is important, but the temperature and humidity is the most difficult targets to protect against this situation, the development and use of reliable temperature and humidity control is very important. This paper introduces the environmental temperature and humidity in the development of real-time monitoring and control devices and methods of thinking. The real-time temperature and humidity control devices in -30 ℃ - +50 ℃ and 10% - 100% RH (relative humidity) within the scope of arbitrary values of temperature and humidity, can be the ambient temperature and humidity measurement and control of real-time and A communication interface can be easily achieved with the computer's real-time communication, and facilitate the expansion of functions, we can make sure the temperature and humidity to meet the design specifications, the warehouse can be easily applied to the monitoring system. The system is controlled by single-chip LED display and keyboard of the external memory and peripheral interface components and computer's main task is to complete data collection of data processing, data storage logic to determine, as well as management monitors and keyboard to achieve the man-machine dialogue.
 
Keywords：Warehouse，temperature and humidity measuring