1、 1 毕业毕业设计论文设计论文 论文题目：论文题目：基于单片机的密码锁设计 系 部 电子通信工程系 专 业 通信技术 2013 年 01 月 08 日 1 摘 要 随着科技和人们的生活水平的提高， 如何实现家庭防盗这一问题也变的尤其 的突出，传统机械锁由于构造简单，被撬事件屡见不鲜；电子锁由于其保密性高， 使用灵活性好，安全系数高，受到了广大用户的青睐。 本设计以单片机AT89C51作为密码锁监控装置的检测和控制核心， 分为主机控 制和从机执行机构（本设重点介绍主机设计） ，实现钥匙信息在主机上的初步认证 注册、密码信息的加密、钥匙丢失报废等功能。根据51单片机之间的串行通信原 理，这便于对密
2、码信息的随机加密和保护。而且采用键盘输入的电子密码锁具有 较高的优势。采用数字信号编码和二次调制方式， 不仅可以实现多路信息的控制， 提高信号传输的抗干扰性，减少错误动作，而且功率消耗低；反应速度快、传输 效率高、工作稳定可靠等。软件设计采用自上而下的模块化设计思想，以使系统 朝着分布式、小型化方向发展，增强系统的可扩展性和运行的稳定性。测试结果 表明，本系统各项功能已达到本设计的所有要求。 关键词关键词:单片机；密码锁；单片机设计 ;电子锁 2 ABSTRACT Along with the exaltation of social science and the living level
3、of people, how carry out the family to guard against theft, this problem also change particularly outstanding.Because of the simple construct of traditional machine lock,the affairs of theft is hackneyed.the electronics lock is safer because of its confidentiality, using the vivid good, the safe coe
4、fficient is high, being subjected to the large customer close. It can carry out the key information to register in the main on board initial attestation, the password information encrypt etc. Go to correspond by letter the principle according to the string between 51 machines, this is easy to encryp
5、t and protect to the passwords information random. Adopt the numerical signal codes,not only can carry out many controls of the road information, raise the anti- interference that signal deliver, reduce the mistake action,but also the power consume is low， Respond quickly,the efficiency deliver is h
6、igh, work stable credibility etc. The software design adoption the design thought from top to bottom, to make the system toward wear distribute type,turn to the direction development of small, strengthen the system and can expand the stability and circulate.Test the result enunciation, various functions of this system are already all request of this design. keyword：singlechip;cryptogram lock;singlechip design; electronics lock. I 目录 目录目录 1 1 绪论绪论. 1 1.1 引言 . 1 1.2 电子密码锁的背景. 1 1.
