文档介绍：重庆交通大学
(重庆通信学院办学点)
毕业设计论文
题目:基于单片机的智能水表的设计
专业:电气工程及其自动化
姓名:
学号:
指导老师:刘安才
二○一一年五月
摘要
为适应国家用水制度的改革,研究和利用现代化智能技术对自来水实行自动控制,减轻供水管理部门因“先供水后收费”造成的资金压力,减少每月抄表、收费所带来的麻烦和因收费问题带来的纠纷,用现代科学技术手段改变自来水管理体制的落后现状,势在必行。基于单片机的智能水表不但可以提高供水部门的工作效率,而且在技术上为节约用水、合理用水创造了条件,由于这些特点,智能水表得到了越来越广泛的应用。
本论文主要设计研究基于单片机的IC卡智能水表电路,其主要功能是以AT89C2051单片机为核心,实现IC卡的读写,液晶显示的控制,电磁阀的控制,脉冲的提取,同时具有安全保护电路、记忆单元电路、通信接口电路,完成整个水表信号的读、写处理,监控水表工作的功能。本文对每个模块逐一进行了研究,全面详细地论述了硬件电路的设计流程,对本设计中非接触式IC卡读写电路模块、液晶显示电路模块和读写电路模块等工作原理及功能进行了详细了说明。
关键词:单片机;IC卡;液晶显示;记忆模块
Abstract
In order to adapt the reform of the nation system of water supply,studying and making use of the modern intelligence technique to realize the automatic supervision of the water supply,lightening the funds pressure because of“supply water first behind charge”of the department supplying water,reducing the trouble and dispute of copying the form and charging monthly,using the modern science technique change the current administration structure of using water and water supply industry is imperative under the application of intelligent water meter not only improves work efficiency of intelligent water meter not only improves work efficiency of the department supplying water and realizes using water electronically but also creates a condition for using water frugally and of these charactetistics,intelligent water meter obtained more and more widespread application.
In this paper, the main design based on single-chip pre-charges the IC card water meter system hardware circuit design, its main function is based on AT89C2051 single-chip puter as the core, the realization of IC card reader, LCD display control, the control solenoid valve, pulse extraction, at the same time security protection circuit, memory cell circuit, communication interface circuit, the signal meter plete the reading, writing and processing, monitoring the work function of water meters. In this paper, one by one for each module studied. Full detail