1、 基于基于 AT24C01AT24C01 的多功能密码控制系统的设计的多功能密码控制系统的设计 The Design Of Multi-functions password control System Based on AT24C01 20200909 年年 6 6 月月 摘摘 要要 随着科技的日益发展，电子密码控制系统已越来越符合人们的要求。本文介绍了 基于单片机和串行 EEPROM 的智能密码控制系统,对系统硬件设计和软件实现进行了 详细的描述。该系统采用 AT89C51 单片机和 AT24C01 串行 EEPROM,通过 AT89C51 模拟 I 2C 总线和 AT24C01 通讯,实
2、现密码控制的功能。 本文从经济实用的角度出发， 采用美国 Atmel 公司的单片机 AT89C51 作为主控芯 片与数据存储器单元，结合外围的矩阵键盘输入、LCD 液晶显示、报警、开锁等，用 C 语言编写主控芯片的控制程序与 EEPROM 读写程序相结合，设计了一款可以多次更 改密码，具有报警功能的电子密码控制系统。这种电路设计具有防试探按键输入、智 能控制上锁、开锁、报警、修改密码等多种功能。密码长度可变、保密性强、灵活性 高。 经实验证明，该密码控制系统具有设计方法合理，简单易行，成本低，安全使用 等特点，符合车辆、办公室用锁要求，具有推广价值。 关键词：关键词： 密码控制；单片机；EEP
3、ROM 读写程序；报警 ABSTRACT As the development of science and technology day by day, the key control system is more in line with the requirements of people. The paper presents a cryptographic smart password control based on MCU and serial EEPROM, describes hardware structure and software design of the syst
4、em. It adopts AT89C51 and AT24C01, realizes the function of cryptographic smart password control. AT89C51 communicates with AT24C01 by I2C bus to achieve the password control function. This article from the economical and practical point of view, the use of the United States Atmel Corporation AT89C5
5、1 microcontroller as a master chip and the data memory unit, combined with the external matrix keyboard input, LED digital display, alarm, unlock and so on, dominated by the C programming language chip EEPROM of the control procedures and the combination of reading and writing program designed to ch
6、ange a password many times, the police function with the electronic the password control. This circuit design with anti-test button input, intelligent control lock, unlock, alarm, multiple functions, such as Change Password. Password length can be changed, even more secret and flexible than others. Experiments show that the password control system is characterized by its reasonable designing methods, simple operation, low cost and property of safety and practicality Besides， the password
