基于单片机的近距离ID卡读取设计(任务书,开题报告,外文翻译,论文13000字)
摘 要
射频识别技术对于我们来说并不陌生,并且在生活中应用的十分广泛。在商业、物流、信息和资金等方面发挥了巨大的作用,成为日常生活中不可或缺的一部分。
识别用户的ID卡的信息并应用在各种系统上,射频识别技术是十分关键的。电子标签卡内部存储着唯一的ID卡号信息,可以凭借卡内信息识别用户或特定物品的身份特征并运用于各类系统,在生活中使用ID卡是十分常见的。
文章从射频识别技术出发,首先介绍了此项技术发展和现状,并介绍了此次系统所需要用到的部分单片机原理。然后介绍了射频识别系统的结构组成,以及系统内部各模块的工作原理。这个RFID系统的设计可分为硬件和软件设计两个部分,硬件部分以STC89C52系列单片机为控制模块,结合相应的外围电路,以RC522射频识别芯片模块为核心,实现对ID卡的读取。软件部分采用C语言开发,通过编写主函数模块,寻卡模块及显示模块完成系统设计,实现数据交换功能。
关键字:ID卡;射频识别技术;RC522;单片机
Abstract
With the development of social economy and science and technology, RFID technology is more and more widely used in various industries. It plays an important role in commerce, logistics, information and capital, etc., and has become an indispensable part of daily life.
RFID technology is critical to identifying the user's ID card and successfully applying it to a variety of systems. The unique ID card number is stored inside the card, which can be used as the identification of users or specific items and applied to various systems. It is very common to use ID card in daily life.
Starting from the RFID technology, this paper firstly introduces the development and current situation of this technology, and introduces the principle of some single chip microcomputer needed in this system. Then the structure and composition of the RFID system and the working principle of each module in the system are introduced. The RFID system design can be divided into hardware and software design of two parts, the hardware part to STC89C52 series MCU as the control module, combined with the corresponding peripheral circuit, RC522 RFID chip module as the core, to achieve the ID card reading. The software part is developed by C language, and the system design is completed by writing the main function module, the card finding module and the display module, and the data exchange function is realized.
Key Words:ID card; RFID; RC522; MCU
目录
第一章 绪论 1
1.1 研究背景及意义 1
1.2 国内外现状 1
1.3 论文内容安排 2
第二章 方案论证 4
第三章 单片机原理 5
3.1 中断系统 5
3.2 LCD1602显示屏 6
3.3 串行通信 7
第四章 RFID技术原理 9
4.1 RFID系统构成 9
4.2 读写器 10
4.2.1 读写器的功能结构 10
4.2.2 RC522读卡模块 11
4.3 电子标签 13
4.3.1 电子标签的组成 13
4.3.2 EM4100芯片数据结构 14
4.4 编码与调制 16
4.4.1 编码技术 16
4.4.2 调制技术 19
4.5 校验技术 20
4.6 防碰撞技术 22
第五章 系统设计与调试 23
5.1 系统硬件电路设计 23
5.2 软件设计 25
5.2.1 主函数 25
5.2.2 寻卡模块 26
5.2.3 显示模块 27
5.3 系统调试 29
第六章 总结与展望 31
参考文献 32
致谢 33
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