基于单片机的IC卡预收费水表系统硬件毕业设计论文.doc

PAGE II XX学院本科生毕业设计（论文） 基于单片机的IC卡预收费水表系统硬件设计 Hardware Design of Pre-charges the Water Meter IC Card System Based On Sing-chip 总 计： 26 页 表 格： 2 个 插 图 ： 15 幅  PAGE III 基于单片机的IC卡预收费水表系统硬件设计 [摘 要] 本论文主要设计研究基于单片机的IC卡预收费水表系统硬件电路，其主要功能是以AT89C51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H6152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 Hardware Design of Pre-charges the Water Meter IC Card System Based On Sing-chip Electronic Information Engineering CHANG Jing Abstract: 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 AT89C51 single-chip microcomputer 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 to complete 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;IC Card ;Liquid crystal display; Memory modules 目 录 TOC \o 1-3 \h \z \u 1 引言 h 1 1.1 IC卡的相关知识 h 1 1.2 IC卡的分类 h 1 1.3 IC卡的历史 h 1 1.4国内外的应用现状 h 2 2 基于单片机的IC卡预收费水表硬件设计 h 3 2.1预收费水表系统硬件组成 h 3 2.2 AT89C51单片机简介 h 3 2.2.1 89C51单片机的基本组成 h 3 2.2.2 89C51单片机引脚及其功能 h 4 3 系统各模块硬件电路设计 h 5 3.1 IC卡读写电路 h 5 3.1.1 Mifare 1射频IC卡 h 5 3.1.2 H6152读写模块 h 8 3.1.3 IC卡读写电路的原理及说明 h 9 3.2 液晶显示电路 h 12 3.2.1 液晶显示模块 h 12 3.2.2 电源模块 h 13 3.2.3 单片机模块 h 15 3.3 记忆单元电路 h 15 3.3.1 I2C总线简介 h 15