單片機(jī)數(shù)據(jù)采集系統(tǒng)設(shè)計(jì)
3.8萬字 55頁
包括中英文文獻(xiàn)，及程序代碼


摘要
隨著信息領(lǐng)域各種技術(shù)的發(fā)展，在數(shù)據(jù)采集方面的技術(shù)也取得了長足的進(jìn)步，采集數(shù)據(jù)的信息化是目前社會(huì)的發(fā)展主流方向。各種領(lǐng)域都用到了數(shù)據(jù)采集，在石油勘探、地震數(shù)據(jù)采集領(lǐng)域已經(jīng)得到應(yīng)用。
隨著測控技術(shù)的迅猛發(fā)展，以嵌入式計(jì)算機(jī)為核心的數(shù)據(jù)采集系統(tǒng)己經(jīng)在測控領(lǐng)域中占到了統(tǒng)治地位。數(shù)據(jù)采集系統(tǒng)是將現(xiàn)場采集到的數(shù)據(jù)進(jìn)行處理、傳輸、顯示、存儲(chǔ)等操作。數(shù)據(jù)采集系統(tǒng)的主要功能是把模擬信號(hào)變成數(shù)字信號(hào)，并進(jìn)行分析、處理、存儲(chǔ)和顯示。國內(nèi)大大小小很多公司多開發(fā)了數(shù)據(jù)采集器和卡之類的產(chǎn)品，這使信息的數(shù)字化提供了極大的方便。
本次畢業(yè)設(shè)計(jì)課題，數(shù)據(jù)采集器制作，是利用ATMEL公司的89C51單片機(jī)和AD0809芯片做一個(gè)采集模擬電壓信號(hào)，轉(zhuǎn)換為數(shù)字信號(hào)，再由單片機(jī)經(jīng)過串口發(fā)送給PC機(jī)處理，另外三個(gè)數(shù)碼管LED顯示采集的數(shù)字信息。
關(guān)鍵字：單片機(jī)、數(shù)據(jù)采集、信號(hào)處理、AD0809芯片

Abstract

Along with the development of information field various technologies, the technology in the aspect of data collection has also gotten rapid advance, gather the informative process of data is now society develop the direction of main stream. Various fields have used data collection , in petroleum exploration and seismic data collection field have gotten application.
As measuring to control technical swift development, with embedded computer for key data collection system Ji go through in measure to control field in have taken dominance position. Data collection system is to carry out the data that the collection on-the-spot goes to to handle , transmits and shows , stock etc. operation. The major function of data collection system is simulated signal become digital signal, and analyse handling , stock and show. Domestic size many companies have developed data collection ware and the product that blocks and so on , this makes the digitlization of information have offered maximum convenience.
This graduated design program, data collection ware produce is the only flat machine of 89 C51 that uses the company of ATMEL with AD0809 chip do a collection simulated voltage signal, conversion number word signal passes string mouth again by only flat machine to dispatch to the handling of personal computer, additionally, 3 number pipe LEDs show the digital information of collection.
Keyword: Only flat machine、Data is gathered、Handle



目 錄
摘要 1
第一章 數(shù)據(jù)采集器簡介 5
1.1 數(shù)據(jù)采集器概述 5
1.2 目前的數(shù)據(jù)采集 5
1.2.1 鉛筆和紙 5
1.2.2長條圖表記錄儀 6
1.2.3 PC機(jī)插件卡片 6
1.2.4數(shù)據(jù)采集器 6
1.3數(shù)據(jù)采集的選擇及應(yīng)用 7
第二章 開發(fā)環(huán)境 8
2.1畫圖工具 Protel99軟件 8
2. 2編程工具 KEIL C51 9
2. 3 燒寫器 11
第三章 設(shè)計(jì)過程 12
3.1系統(tǒng)功能及結(jié)構(gòu)簡介 12
3.2 硬件芯片選擇及功能簡介 13
3.2.1 AT89C51 芯片 13
3.2.2 ADC0908 芯片 14
3.2.3 74LS74 芯片 16
3.2.4 MAX232 芯片 17
3.2.5 74LS244 芯片 18
3.3 原理介紹 18
3.4 軟件設(shè)計(jì) 21
3.5 PC機(jī)上數(shù)據(jù)接收軟件制作 22
3.6 調(diào)試過程 26
3.6系統(tǒng)精度 28
第四章 總結(jié) 29
第五章 致謝 30
附錄 一 參考文獻(xiàn) 31
附錄 二 中外文翻譯 32
附錄三 程序 49


附錄 一 參考文獻(xiàn)
[1] 《MCS-51/96系列單片機(jī)原理及應(yīng)用》 孫涵芳、徐愛卿 編著， 北京航空航天大學(xué)出版社
[2] 《單片機(jī)基礎(chǔ)》 李廣弟、朱月秀、王秀山 編著，北京航空航天大學(xué)出版社
[3] 《單片機(jī)C程序設(shè)計(jì)實(shí)例指導(dǎo)》 李光飛 李良兒 樓然苗 編著，北京航空航天大學(xué)出版社 ......


附錄 二 中外文翻譯
Analog Signals
A signal is said to be analog if it falls between two arbitrary levels, Vx and Vy, and can assume any one of an infinite number of values between Vx and Vy. If the analog signal......


附錄三 程序
主程序：
#include
#define uchar unsigned char
#define uint unsigned int
sbit annu0=P1^0;
sbit annu1=P1^1;
......