远程数据采集终端的数据处理模块设计

文档编号:DZXX021  文档字数:10296,页数:27

摘 要
 随着工、农业的发展，多路数据采集势必将得到越来越多的应用，为适应这一趋势，做这方面的研究就显得十分重要。在科学研究中，运用数据采集系统可获得大量的动态信息，也是获取科学数据和生成知识的重要手段之一。总之，不论在哪个应用领域中，数据采集与处理将直接影响工作效率和所取得的经济效益。
 本次毕业设计的题目是远程数据采集终端的数据处理模块设计, 主要对多路数据采集系统作基本的研究。本系统主要解决的问题是数据的实时多路采集及数据处理。以AD574A和8051为核心，本系统有两个部分数据采集和数据处理，具体包括模拟多路开关，A/D转换器和MCU。设计中采用2个AD4501进行16路的数据采集，采集到的数据通过AD475A进行A/D转换，再通过并行口发送给MCU。硬件设计应用电子设计自动化工具，软件设计采用模块化编程方法。

关键词：数据采集；A/D转换器；数据处理

Abstract
 With the development of industrial and agricultural, Multi-channel data acquisition is bound to be more and more applications. To adapt to this trend, researching in this area is important. In scientific research, we will get a lot of dynamic information by using the data acquisition system. As well as access to scientific data and knowledge generated, it is one of the important means. In short, Regardless of which application in the field, Data acquisition and processing will have a direct impact on the efficiency and cost-effectiveness of the work.
 The graduation design is the design of the data processing module of remote data acquisition termination, which is about the basic research of the multi-channel data acquisition system. The system is to solve the problem of the real-time data acquisition and multi-channel data processing. Contain of AD574A and 8051 as the core, the system has two part of the data acquisition and data processing .The system include the simulation of multi-channel switch, MCU and ADC materially. The system do 16 routes data acquisition by using two AD4501, and then the data are sent to the AD475A. After A/D conversion, the data are sent to MCU by Parallel transmission. The hardware was designed by using electronic design automation tools, then the software was designed by using the modular Programming.

Key words: Data Acquisition；ADC；Data Processing
目录
摘 要 I
Abstract II
第1章 绪论 1
1.1 课题的背景和意义 1
1.2 课题研究内容及任务 1
第2章 设计方案论证 3
2.1基于ARM7的数据采集系统实现方案 3
2.2基于MCS-51单片机的数据采集系统实现方案 4
2.3 计算机数据采集系统实现方案 5
2.4 方案选择 5
第3章 主要芯片介绍 7
3.1 AT89C51芯片介绍 7
3.2 AD574A芯片介绍 8
3.3 6264芯片介绍 10
第4章 硬件系统设计 11
4.1多路模拟开关及与MCU的接口 11
4.2 A/D转换器及与MCU的接口 13
4.3 数据存储器的扩展 15
4.4整个数据处理模块的电路 17
第5章 系统软件设计 18
5.1系统初始化 18
5.2 A/D转换 19
5.3 数据存储 21
第6章 毕业设计总结 22
致谢 23
参考文献 24
附录 整体电路原理图 25

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