文档介绍：学校代码: 11059
学号:0805070290
Hefei University
毕业论文(设计)
BACHELOR DISSERTATION
论文题目: 传感器采集系统软件设计与实现
学位类别: 工学学士
年级专业(班级): 08级自动化(3班)
作者姓名: X Y Z
导师姓名: A B C
完成时间: 2012年5月22日
传感器采集系统软件设计与实现
中文摘要
以前工业现场的各种数据都是采用人工读数和记录,一直停留在手工和仪表的水平。但是随着时代的进步,工业现场需要采集和分析的数据越来越多,靠人力已经无法满足工业控制的需求,在此背景下,传感器采集系统便应运而生了。近年来,传感器数据采集及其应用技术受到人们越来越广泛的关注,传感器采集系统也得到了迅速地发展并且不论在化工生产、采矿、科学研究、灾害预防、医疗、国防等领域得到广泛的应用。
本课题设计的传感器采集系统由压力传感器、AD转换器AD7705、单片机STC89C52RC和LCD1286显示器组成。压力传感器受到压力,将压力信号转换成微小的模拟电压信号,然后再将模拟信号经过放大和滤波,再送给AD7705将模拟信号转换为数字信号,再传送给STC89C52RC单片机,单片机再对接收到的数据进行分析处理,将数据传送到LCD12864液晶显示屏上进行显示。
本文主要完成传感器采集系统中的软件部分的设计和实现,包括主函数模块、数据采样模块、键盘模块和显示屏模块。经过测试,验证传感器采集系统功能的正确性。
关键词:数据采集系统;AD7705;STC89C52RC;LCD12864
Software design and Implementation of sensor data acquisition system
ABSTRACT
Previous industrial field data are reading and recording by ’s always stay in manual and the level instrument. But along with the time progress, industrial site requires the acquisition and analysis of the data more and more by manpower, has been unable to meet the demand of industrial control, in this context, sensor data acquisition system will emerge as the times require. In recent years, sensor data acquisition and its application technology has attracted more and more attention, sensor data acquisition system has been developing rapidly in chemical production, mining, scientific research, disaster prevention, medical, defense and other fields have a wide range of applications.
The design of sensor data acquisition system consists of pressure sensor,AD7705, STC89C52RC and LCD1286. Pressure sensor subjected to pressure, the pressure signal is converted into a low analog voltage signal, then the analog signal after amplification and filtering, and then use the AD7705converts the analog signal to digital signal, and then transmits to the STC89C52RC microcontroller, The microcontroller receive the data to analysis processing, sending the data to the LCD12864.
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