毕业设计 基于单片机的数据采集系统设计.doc

XX大学信息与电子工程学院2006届毕业设计（论文） 第  PAGE 58 页 基于单片机的数据采集系统设计 摘要 随着信息领域各种技术的发展，在数据采集方面的技术也取得了长足的进步，采集数据的信息化是目前社会的发展主流方向。各种领域都用到了数据采集，在石油勘探、地震数据采集领域已经得到应用。 随着测控技术的迅猛 HYPERLINK /fazhan/ 发展，以嵌入式 HYPERLINK /pc/ 计算机为核心的数据采集系统己经在测控领域中占到了统治地位。数据采集系统是将现场采集到的数据进行处理、传输、显示、存储等操作。数据采集系统的主要功能是把模拟信号变成数字信号，并进行 HYPERLINK / 分析、处理、存储和显示。国内大大小小很多公司多开发了数据采集器和卡之类的产品，这使信息的数字化提供了极大的方便?? 本次毕业设计课题，数据采集器制作，是利用ATMEL公司的89C51单片机和AD0809芯片做一个采集模拟电压信号，转换为数字信号，再由单片机经过串口发送给PC机处理，另外三个数码管LED显示采集的数字信息。 关键字：单片机、数据采集、信号处理、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 录  TOC \o 1-3 \h \z \u  HYPERLIN