毕业论文(设计)-水产养殖中的水质检测系统设计.doc
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JIANGXI AGRICULTURAL UNIVERSITY
本 科 毕 业 设 计
题目: 水产养殖中的水质检测系统设计
学 院: 工 学 院
姓 名: 杨鸿年
学 号: 2011120731
专 业: 通信工程
班 级: 通信122
指导教师: 董子健 职 称:讲师
二0一三 年五月
摘 要
随着我国经济的快速发展,人民在水产养殖生活中对水质的要求有了很大的提高,但是我国水资源却出现了很多问题,比如水资源短缺、分布不均匀,尤其是水质越来越差。水质检测工作是水体污染防治工作和水坏境保护的重要组成部分,但是,目前在我国水质检测的实际工作中,大量采用的检测方法已经不能满足要求,因此我们要大量发展和提升水质检测的技术。本系统是基于51系列单片机AT89C51,通过模数转换器ADC0804将输送来的模拟信号转换成数字信号,然后传送到单片机AT89C51,通过程序算法处理换算出本测量水质的电阻值,然后换算成电导率,通过液晶显示器1602显示出来。使用DS18B20温度采集模块,传送的信号经过51单片机的转换和处理,将温度值通过字符液晶1602显示器显示出来。本设计结构简单,使用灵活,具有很大的研究价值。
关键词: AT89C51;ADC0804;DS18B20 ;1602液晶显示器;keilC51
Abstract
With Chinas rapid economic development, People in the aquaculture life has been greatly improved the water quality requirements , but the countrys water resources have many problems, such as shortages of available water, uneven distribution, especially water quality is getting worse. Water quality testing work is a important composition part of water pollution prevention and control work and water pollute environment protection, However, in the actual work of Chinas water quality detection, a large number of used testing method already can not meet the requirements, so we have to develop a large number of equipment and enhance water quality testing technology. This system is based on the 51 series micro-controller AT89C51. transported analog signal through the analog-to-digital converter ADC0804,the analog signal will be converted into a digital signal and then transmitted to the micro-controller AT89C51. translated by water resistance value the program algorithm processing of the measuring , and then converted into electrical conductivity displayed in the liquid crystal display 1602. Use DS18B20 temperature acquisition module, transmitted signal through the 51 single-chip conversion and processing, the temperature value
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