ID卡读卡器的开发及其在门禁系统中的应用

摘要

20世纪90年代射频识别（分凝器RFID）技术开始兴起，因其是一种非接触的自动识别技术，具有防水、防磁、耐高温、使用寿命长、读取距离大、安全性高、存储数据容量大以及存储信息更改方便等优点，得到了广泛的研究，并在电子收费、铁路机车车辆识别与跟踪、集装箱识别、贵重物品的识别与跟踪、宠物管理、出入门禁与考勤、车辆防盗等领域得到应用。

本文分析了ID卡应答器的基本工作机理以及ID卡内部信息的存储空间结构，并详细研究了ID卡的读卡原理和方法。在此基础上，进行了基于ID卡的门禁控制系统的软件和硬件开发。用Protel软件设计了电路原理图和PCB板，主要包括ID卡读卡电路、ISP下载电路,电源电路、E2PROM存储器扩展电路、实时时钟电路和门锁控制接口电路，论述了主要元器件的选型方法以及各部分电路的工作原理。用Keil软件编写了射频信号的解码程序及门禁控制程序，并用流程图进行了说明。经过实际电路的制作和反复调试，实现了基于ID卡的智能门禁管理功能。家庭视频电话

关键词：射频识别，读卡器，曼彻斯，电控锁

The development of ID card reader and its application in the access control system

Abstract

RFID technology, which emerged in the 1990s，is a non-contact automatic identification technology. Because it has advantages of waterproof, antimagnetic, high temperature, long service life, long reading distance, safe, large capacity of data storage, easy to modify information, etc., it has been extensively studied and widely used in many fields such as the electronic toll system, railway rolling stock and track identification, container identification, valuables of the recognition and tracking, pet management, access and attendance access control, vehicle anti-theft, and so on.

The basic working mechanism of the ID card transponder and the internal information storage structure of ID card is analyzed. The principle and the method of ID card reading

are studied in detail. On the basis of that, the software and hardware of access control system based on ID card is developed. Both electronic schematic and PCB are designed by Protel. The circuit schematic mainly includes ID card reader circuit, ISP download circuit, power circuit, EEPROM memory expansion circuit, real-time clock circuit and the lock control interface circuit. The selection methods of main components and the working principle of each circuit part are described. Keil software is used to programming of the radio frequency signal decoding and access control. The designed program is illuminated by flow chart. The management function of intelligent access control base on ID card is realized at last through the experience of actual circuit production and repeated debugging.

Key Words：RFID; Reader; Manchester code; Electronic Control Lock

充退磁控制器目录

电视制作摘要 i

Abstract ii

第一章引言 1

1.1历史及特点 1

1.2 系统组成 2

1.3 发展趋势 2

1.4 主要工作及章节提要 3

第二章射频识别原理概述 4

2.1 应答器的原理 4

2.1.1 应答器的分类及优缺点 4

2.1.2 应答器的物理特征 5

2.1.3 应答器的工作机理 5

2.2 读卡器的原理 7

2.2.1 能量供应 8

2.2.2 数据传输与编码方式 9

第三章 ID卡读卡器的开发 11

3.1 ID卡读卡器硬件设计 11

3.1.1 系统整体规划 11

3.1.2 芯片选型 11

本文发布于:2024-09-22 10:36:06，感谢您对本站的认可！

本文链接：https://www.17tex.com/tex/4/231523.html

上一篇：指纹锁的设计与实现

下一篇：基于单片机的智能定时器的设计

标签：电路识别门禁工作

留言与评论（共有 0 条评论）