智能溫度巡檢儀的研制

電子機電論文編號:JD105    包括 開題報告,外文翻譯,大圖,字數:12597,頁數:39

目錄

前言..................................................................................1
第一章 系統硬件電路設計
1.1  設計技術要求    ..................................................................2
1.2  硬件電路設計思路         .....................................................2
1.3  硬件電路設計方案   ...........................................................4
第二章 系統硬件電路的實現 
2.1  溫度采集部分   ....................................................................7
2.2  模擬通道輸入部分  .............................................................8
2.3  顯示及鍵盤控制部分        ...................................................9
2.4  聲光報警部分           ............................................................9
第三章  系統軟件設計
3.1  內存單元分配      .................................................................10
3.2  軟件設計方案論證   ............................................................11
3.3  軟件設計..........................................................................13
第四章 系統功能調試
4.1  顯示/鍵盤板調試 ................................................................29
4.2  最小系統板調試   ................................................................31
4.3  AD前端電路調試 ................................................................31
4.4  模擬通道電路調試  .............................................................33
4.5  通信接口電路調試   ............................................................34
4.6  聲光報警電路調試   ............................................................35
結論 ....................................................................................36
致謝  .....................................................................................37
參考文獻 ..................................................................................38
附錄1：程序清單
附錄2：電路原理圖

摘要：溫度巡檢儀是冰箱自動檢測系統的一部分，本課題是一種以 8051 單片機為核心構成的智能儀器系統，該溫度巡檢儀可對64點溫度進行巡回檢測和顯示又可對某點進行定點檢測和顯示，在檢測的同時可以進行聲光報警，帶有串行通訊接口的溫度巡檢儀。整個系統是由溫度傳感器電路，電壓放大電路，多路檢測通道選擇電路， A/D 轉換電路，抗干擾電路，最小系統電路，鍵盤顯示電路，聲光報警電路組成。因此，從整個系統的功能上可以分為四個部分：
第一部分：巡回檢測部分。當按下巡檢該功能鍵時，系統可以從第1路到64路巡回檢測并且顯示出檢測的點數和溫度值。
第二部分：定點檢測部分。定點檢測可以在一開始就執行也可以在巡檢的過程中執行。當定點檢測完了而按下了巡檢鍵又可以繼續往下執行巡回檢測。
第三部分：聲光報警部分。首先設定一個溫度上限值，當檢測到某點的溫度值超過了該上限值時，系統就會報警。報警一段時間后系統可以繼續往下檢測。
第四部分：串行通信部分。系統帶有串行通信接口，可以實現多機通信也可以實行與PC機的數據通信。
本系統的主要特點是：
可以將系統檢測的點數擴展到64路。可以實現巡回檢測和定點檢測，而且兩種檢測可以交互進行。
可以實現聲光報警。
帶有串行通信接口，可以實現通信和與上位機通信。
關鍵字：巡回檢測，定點檢測，聲光報警，鉑電阻，模擬開關，串行通信。

Abstract:Thetemperature cruises the examintion instrument is a refrigerator to examine a part of the system automatically, this lesson an intelligence for is a kind ofly with 8051 single a machines for core constituting instrument system, that temperature cruises the examintion instrument cans cruise to return to examination to 64:00 temperature proceeding with show that can examine to a certain proceeding fixed-point again with show, at examine at the same time to can proceed the sound and light report to the police, taking a string of a communication connects the oscular temperature cruises the examintion instrument . Whole system is be spread by temperature to feel machine electric circuit, the electric voltage enlarge the electric circuit, many roads examination passage choose the electric circuit, A/ D conversion electric circuit, anti- interference electric circuit, minimum system electric circuit, keyboard manifestation electric circuit, the sound and light report to the police the electric circuit constitute.
Therefore, can is divided into four parts from the function top of whole system:
Part one:Cruise to return to examination part. When press to cruise to return to examination that function key, system can from the 1 road to 64 roads cruise to return to examination and display the number of the examination with the temperature value
Part two:The fixed-point examination part.The fixed-point examination   can carry out in first beginning carried out too can at cruise return examination of process.When the fixed-point examination is over but pressed to cruise the key of Cruise to return to examination again downward carry out to cruise to return to examination.
Part three:The sound and light reports to the police the part. First set up a temperature upper limit value, be to examine a certain temperature value that upper limit the value,
Part four:A correspondence is part of. The system takes a string of a data for the correspondence connects, canning realize manyly the machine correspondence also can practice with the machine of PCs correspondence.
The main characteristics of this system is:
1.Can the number that examine expand system to 64 road. Can realize to cruise to return to examination to examine with the fixed-point, and two kinds of examinations can hand over to proceed with each other.
2.Can realize the sound and light report to the police.
3.Taking a correspondence connects, can realize correspondence and correspond by letter with place of honor machine.
Key word:Cruise to return to examination, the fixed-point examines, the sound and light reports to the police, platinum electric resistance, emulation switch, a line corresponds by letter.