1、 本科生毕业论文（设计）本科生毕业论文（设计） 题目： IC 卡电子门锁控制系统硬件设计与实现卡电子门锁控制系统硬件设计与实现 IC卡电子门锁控制系统硬件设计与实现 摘要：随着科技的进步，以单片机为核心的自动门锁控制系统已经开始进入了人们的 生活。本论文着重阐述了以 MCS-51 系列单片机为核心，通过可编程并行接口 8255 直 接控制 LCD 液晶显示器模块及键盘扫描，并与接触式 IC 卡读写技术相结合的系统。 为保证门锁使用的安全性，系统自动比较 IC 卡密码和用户输入密码，若输入的密码与 系统读出的 IC 卡密码相同，门锁自动开启；若连续输入三次错误的密码，系统自动停 止此卡的使用，并
2、及时将报警信号通过 RS-485 串行通信总线传往主控台。本设计的优 点是硬件电路简单，软件功能完善，控制系统可靠，具有一定的实用价值。该系统拓 展后，可用于其他智能家电的控制，具有好的应用前景。 关键词：MCS-51 单片机，接触式 IC 卡，LCD 显示器，电子门锁 The hardware design and realization of IC card electronic door locks controlling system Abstract：With the progress of technology, the automatic door locks control s
3、ystem which takes the the Single Micro Chip Computer as the core is stepping into peoples lives. This paper focuses on the system which takes the series Single Micro Chip Computer MCS-51 as the core, which controls Liquid Crystal Display modules and keyboard scanning through the 8255 chip directly,
4、and contacts the IC card read-write technology. In order to guarantee the security of the door locks use, the system design offers an comparision between the IC card password and the password which the user input. If inputed password and the IC card password read out on the system read-out are same,
5、 the door lock will be opened automaticly. If you input wrong password three times continuously, the system will automatically stop the use of the card, and the alarm will be transmited to the key station promptly through the RS-485 serial telecommunications bus st-bus. The advantage of this design
6、is simple in the hardware circuits, software functional improvements, the control systems reliablily, and has certain practical. After this system is developed, it can be used in other intelligent electrical appliances control and has a good application prospect. Key words : Single Chip Micro Computer, IC cards, Liquid Crystal Display, Electronic door locks 目 录 1 系统分析 (1) 1.1 系统研究的可行性. (1) 1.2 需求分析. (1) 1.3 系统整体设计方案. (2) 1.4 系统集成. (3) 2 系统硬件整体设计方案 (3) 2.1 所需功能模块. (3) 2.2 外围互连的资源分配示意图.
