【正文】 ..................................................................... 23 液晶顯示電路軟件設(shè)計(jì) ........................................................................................................... 24 液晶控制驅(qū)動器指令集 ................................................................................................. 24 程序流程圖及部分程序 ................................................................................................. 26 .......................................................................................................... 27 第 4 章 關(guān)于智能水表的節(jié)能及安全問題 ............................................................................................. 28 IC 卡智能水表的低功耗問題 ................................................................................................... 28 低功耗解決方案 .................................................................................................................... 28 IC 卡智能水表的安全性問題 ................................................................................................... 29 安全性問題解決方案 ............................................................................................................. 29 對水表的物理性攻擊的防范辦法 ............................................................................................. 30 第 5 章 結(jié) 論 ..................................................................................................................................... 31 參考文獻(xiàn) ............................................................................................................................................ 32 謝 辭 ................................................................................................................................................. 33 附錄 ................................................................................................................................................... 34 ............................................................................................................................... 34 .................................................................................................................................. 36 報(bào)警程序 ......................................................................................................................... 36 蜂鳴器程序 ..................................................................................................................... 37 時(shí)鐘程序 ......................................................................................................................... 37 電氣原理圖設(shè)計(jì)軟件介紹 ................................................................................................. 40 protel 電路板設(shè)計(jì)軟件 ..................................................................................................... 41 原理圖的繪制 ................................................................................................................. 42 PCB 圖的繪制 ................................................................................................................. 42 AT89C2051 單片機(jī)簡介 ....................................................................................... 45 基于單片機(jī)的智能水表的設(shè)計(jì) 1 第 1 章 緒論 課題背景及意義 隨著社會科學(xué)技術(shù)的高速發(fā)展，資源短缺現(xiàn)象日益嚴(yán)重，尤其是與人類生存嘻嘻相關(guān)的水資源日益缺乏。 Liquid crystal display。 關(guān)鍵詞 ：單片機(jī)； IC 卡；液晶顯示；記憶模塊 II 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 singlechip precharges the IC card water meter system hardware circuit design, its main function is based on AT89C2051 singlechip microputer 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, munication interface circuit, the signal meter to 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 of the hardware circuit design flow, for the design of the Central African contactless IC card reader circuit module, liquid crystal display circuit module and circuit module, such as reading and writing H6152 working principle and function are described in detail. Key words: SCM。 本論文主要設(shè)計(jì)研究基于單片機(jī)的 IC 卡智能水表電路，其主要功能是以 AT89C2051 單片機(jī)為核心，實(shí)現(xiàn) IC 卡的讀寫，液晶顯示的控制，電磁閥的控制，脈沖的提取，同時(shí)具有安全保護(hù)電路、記憶單元電路、通信接口電路，完成整個(gè)水表信號的讀、寫處理，監(jiān)控水表工作的功能。重慶交通大學(xué) （重慶通信學(xué)院辦學(xué)點(diǎn)） 畢 業(yè) 設(shè) 計(jì) 論 文 題 目： 基于單片機(jī)的智能水表的設(shè)計(jì) 專 業(yè)： 電氣工程及其自動化 姓 名： 學(xué) 號： 指導(dǎo)老師： 劉安才 二○一一年五月 I 摘 要 為適應(yīng)國家用水制度的改革，研究和利用現(xiàn)代化智能技術(shù)對自來水實(shí)行自動控制，減輕供水管理部門因“先供水后收費(fèi)”造成的資金壓力，減少每月抄表、收費(fèi)所帶來的麻煩和因收費(fèi)問題帶來的糾紛，用現(xiàn)代科學(xué)技術(shù)手段改變自來水管理體制的落后現(xiàn)狀，勢在必行?；趩纹瑱C(jī)的智能水表不但可以提高供水部門的工作效率，而 且在技術(shù)上為節(jié)約用水、合理用水創(chuàng)造了條件，由于這些特點(diǎn)，智能水表得到了越來越廣泛的應(yīng)用。本文對每個(gè)模塊逐一進(jìn)行了研究，全面詳細(xì)地論述了硬件電路的設(shè)計(jì)流程，對本設(shè)計(jì)中非接觸式 IC 卡讀寫電路模塊、液晶顯示電路模塊和讀寫電路模塊等工作原理及功能進(jìn)行了詳細(xì)了說明 。 IC Card 。 Memory modules 基于單片機(jī)的智能水表的設(shè)計(jì) 1 目 錄 摘 要 .................................................................................................................................................... I Abstract ..............................................................