基于mcu芯片控制的智能门锁的设计(附件)【字数:11089】
目录
一、引言 6
(一)课题简介 6
(二)项目的设计目的 7
二、系统方案论证7
(一)选定主要控制部件7
(二)如何选取口令8
三、系统总体设计和主要芯片介绍8
(一)系统整体方案8
(二)核心芯片的简介9
四、系统硬件设计 13
(一)总体电路13
(二)AT89C51最小电路13
(三)复位电路14
(四)时钟电路15
(五)键区16
(六)加密存储器16
(七)显示部分17
(八)报警部分18
(九)远程控制电路和开锁电路19
五、系统软件设计20
(一)主要流程图20
(二)键盘子程序流程21
(三)远程控制流程 22
六、实物调试23
总结25
致谢26
参考文献27
附录一 电路原理图28
附录二 程序清单29
附录三 元器件清单47
Abstract
With the development of science and technology, peoples requirements for electronic pro *51今日免费论文网|www.51jrft.com +Q: ^351916072^
ducts are increasing day by day. With the higher and smaller requirements for electronic devices, more and more people like to use electronic coding technology. In order to meet the needs of modern people for locks, increase their safety performance and eliminate the cumbersome problems of previous mechanical locks, intelligent unlocking with digital coding technology as the key came into being. It has the advantages of safety and efficiency, easy to master, low development cost and low power consumption.
This paper introduces the composition of a control system based on MCU, matrix keyboard, liquid crystal display and electronic alarm control system. In this system, you can complete the basic passwords such as unlocking, exceeding the previous lock, warning, changing user password and so on. In addition to the most basic encryption function mentioned above, it also has poweroff storage function and sound and light display function, which can be determined according to the specific use situation. Is the most commonly used programming tool. The product has high stability, low cost, simple and practical control function. It can be widely recommended for homes, offices and other places, and has high mass production application.
Key words: AT89C51; AT24C02; Intelligent electronic code lock; keyboard
一、引言
随着的发展,人们对电子设备的要求也在不断提高,而电子设备也从过去的厚重金属板,变成了如今的晶片。自古代以来,锁具一直被广泛使用,对于各种场合所需的锁具的需求也是逐渐提升。我们需要通过先进的技术,制造出一个稳定、安全、舒服的工作空间,并在经常使用的区域实现自动门的功能,这也是制式门锁的发展道路和技术的重要突破。随着电子技术的飞速发展,人们对各种电子产品的需求也越来越大,比如智能钥匙。例如,一种具有自动警报的电子密码锁。电子密码锁,指的是通过输入的方法来对线路进行操作,从而实现对电器的开断、报警和关闭等操作。在安全与安全技术上,完全替代了传统的机械型密码锁,解决了传统的机械密码锁的使用时间短、安全性能低等缺点,极大地改善了用户的使用感受,极大地改善了安全、安全、运行的最优。与此同时,随着 LSI技术的不断发展,尤其是在大批量使用 IC的情况下,所生产的芯片内部都含有一个微型计算机的保密密码。同时,利用多种外在硬件,使得锁的运行方式更为多元化,从而提高了系统的安全、可靠度,逐步应用于日常的各个方面。
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