电子密码锁的设计与制作【参考】.docVIP

编号 淮安信息职业技术学院 毕业论文 题 目 电子密码锁的设计与制作 学生姓名 周凯 学 号 系 部 电子工程学院 专 业 光电子技术（光伏发电） 班 级 161111 指导教师 徐传顺 顾问教师 二〇一年月 摘 要 随着科技的发展，单片机已不是一个陌生的名词，它的出现是近代计算机技术发展史上的一个重要里程碑，因为单片机的诞生标志着计算机正式形成了通用计算机系统和嵌入式计算机系统两大分支。单片机单芯片的微小体积和低的成本，可广泛地嵌入到如玩具、家用电器、机器人、仪器仪表、汽车电子系统、工业控制单元、办公自动化设备、金融电子系统、舰船、个人信息终端及通讯产品中，成为现代电子系统中最重要的智能化工具。 本设计以AT89C51单片机为控制核心结合矩阵键盘、24C02A存储系统等来完成电子密码锁的设计。单片机接收键入的代码后与存贮在24C02A的密码进行比较如果密码输入正确则锁将打开如果输入不正确则系统报警但是允许接着输入密码直到输入正确系统开锁设计达到预期效果。 本设计是基于单片机的密码锁设计方案，根据要求，给出了该单片机密码锁的硬件电路和软件程序，同时给出了单片机型号的选择、硬件设计、软件流程图、单片机存储单元的分配、汇编语言源程序及详细注释等内容。关键词 4×4矩阵键盘 AT89C51 24C02A存储系统 电子密码锁 Abstract With the development of science and technology, SCM is not a strange noun, its appearance is an important milepost of modern computer technology development history, because the microcontroller marks the birth of computer was officially formed the general computer systems and embedded computer system two branches. Single chip microcontroller tiny size and low cost, can be widely embedded in such as toys, household appliances, robotics, instrumentation, automotive electronics, industrial control unit, office automation equipment, electronic financial systems, ship, personal information terminal and communication products, become the most important intelligent tool in modern electronic systems. This design USES AT89C51 single chip microcomputer as control core, combined with the matrix keyboard, 24 c04a storage system to complete the design of the electronic combination lock, etc. MCU receives the type in the code, after comparing with storage at 24 c04a password, if the password is correct, the lock will open; If the input is not correct the system alarm, but allow and then enter the password, until the input is correct, system lock, designed to achieve the desired effect. This design is a microcontroller password lock design, based on the requirements, the microcontroller password lock hardware circuit and