毕业设计(论文)-基于单片机的指纹考勤系统.doc

山东英才学院
毕业设计(论文)
题目
专业
学生姓名
班级学号
指导教师签字
指导教师职称
指导单位
负责人签字
学院领导签字
日期
摘要
单片机控制无疑是人们追求的目标之一。单片机是一个单芯片形态,面向控制对象的嵌入式应用计算机系统。
文章介绍的指纹考勤系统是基于单片机系统实现的。以单片机系统为核心的指纹考勤系统是一个相对独立的系统,可以完成指纹信息的采集处理。通过串口与上位机实现通信,可以将指纹信息传给VC电脑端,实现指纹信息的管理,以应对实际应用。
本文基本实现了串口通信与上位机的指纹信息处理。在整个指纹考勤系统中利用VC++实现上位机编程,利用ODBC对信息作出合理的分类,该应用程序能够较好的实现上班时间的设定;能够提供员工出入单位的情况记录;能够提供请假、加班和出差情况的记录,并实现查询、添加、修改、删除、浏览等处理功能;能够拥有一定的安全性、协调性和完整性。
关键字:指纹考勤;单片机系统;FPS200;串口通信;上位机编程

Abstract
SCM is undoubtedly one of the goals that people pursue. The microcontroller is a single-chip form, puter system of the control object-oriented embedded applications.
The article describes the fingerprint attendance system is implemented based on the SCM system. SCM system as the core fingerprint attendance system is a relatively independent system, fingerprint information acquisition and processing can pleted. Communication through the serial port with the puter, the fingerprint information can be passed to the VC PC fingerprint information management to cope with the practical application.
The basic munication between PC and the fingerprint information processing. Entire fingerprint attendance system using VC + + puter programming, using ODBC to make a reasonable classification of the information, the application can better achieve the setting of working hours; to provide employees access units recorded; to provide leave, overtime and travel records of query, add, modify, delete, browse and other processing functions; to have a certain security, coordination and integrity.
Keywords: fingerprint time and attendance; SCM system; FPS200; munication; puter programming

目录
第一章系统总体设计方案 1
第二章指纹识别系统的硬件设计 2
2
2
AT89S51单片机的基本组成 2
AT89S51引脚功能 4
AT89S51的CPU 5
AT89S51的存储器结构 5
74LS373芯片结构介绍 6
6
8
串行口的特殊功能控制寄存器 8
9
10
11
RS-232C接口 11
RS-232C的EIA电平和TTL电平转换 12