毕业论文基于单片机与串行通信的电子密码锁设计论文.docx

基于单片机与串行通信的电子密码锁设计摘要：随着人们生活水平的提高，安全和防盗越来越受人们的重视，随着电子产品向智能化和微型化的不断发展，单片机已经成为电子产品研制和开发中首选的控制器。本文首先介绍了本设计研究的背景和意义，接着介绍一种应用AT89S51单片机设计的电子密码锁，以AT89S51为核心并且有各种附加电路保证电路能够安工作，有极高的安全系数。经实际制作表明该密码锁具有安全、实用、成本低等特点,符合住宅用锁的要求,具有一定的现实意义。关键词：AT89S51,矩阵键盘,AT24C02,串口显示电路，报警控制电路等Designs based on the monolithic integrated circuit and serial communications electronic combination lockAbstract: Along with people living standard enhancement，Safe and security receives peoples value more and more，Along with electronic products to intellectualized and microminiaturized unceasing development，The piece machine already became in the electronic products development and the development the first choice controller.This article first introduced this design research background and the significance，Then introduced that one kind applies AT89C2051 monolithic integrated circuit design the electronic combination lock，Take AT89S51 as the core，And has each kind of stand-by circuit guarantee circuit to be able to work peacefully，Has the extremely high safety coefficient.Indicated after the actual manufactureThis combination lock has the security, practical, the cost low status characteristic, conforms to the housing with the request which locks, has certain practical significance.Keywords:AT89CS51, Matrix keyboard,AT24C02, Serial port display circuit, Alert control electric circuit and so on.目录1 绪论..............................................................................................11.1设计研究背景....................................................................................................................11.2 设计研究意义...................................................................................................................12 主要元器件介绍..........................................................................22.1 主控芯片AT89S51............................................................................................................22.2 存储芯片 AT24C02..................................................