一款新颖电子门锁的实现

Design of a New Electronic Door Lock

介绍一款新颖电子门锁系统的实现。该电子门锁以DS2401增强型硅序列号芯片作为电子密匙,该芯片采用1-Wire总线技术而且序列号全球唯一;锁体利用高可靠性的单片机AT89C2051来完成密匙识别和开锁控制,同时利用I2C总线接口的EEPROM芯片AT24c32来完成对密码的存储和修改,可掉电保存密码。因此整个系统具有安全、实用、成本低等特点,符合住宅用锁的要求,可作为产品进行开发。

This article introduces how to make an electronic door lock.A chip DS2401 silicon serial number is regarded as an electronic key.The chip uses the technique 1-Wire bus and it has the only serial number in the world.AT89C2051 Microcontroller is used to identify DS2401 silicon serial number and control the lock opening.A chip EEPROM AT24c32 with I2C bus is used to store and modify key.The chip doesn＇t lose its contents when power can＇t be provided.The designed lock system is characterized by its low cost and high degree of safety and practicality.Otherwise,it works well as a residence lock and has great potential for commercial development.