基于MSP430G2553的智能防夹密码锁设计

Design of intelligent anti-clamping password lock based on MSP430G2553

为了实现家庭智能防盗,设计了一款具有密码保护功能的智能防夹密码锁。系统以低功耗单片机MSP430G2553作为主控芯片,AD键盘作为密码输入,LCD12864实现液晶显示,通过步进电机驱动锁芯。在开锁时,如果连续三次输入错误密码,一分钟内自动禁止输入,可降低密码锁被破解的几率;进门后系统会通过红外传感器检测障碍物,判断是否继续关门。实验样机测试表明,智能防夹密码锁具有安装便捷,操作简单,有效防夹等优点,极大地提高了居民住宅的安全性。

In order to realize the intelligent anti-theft at home,an intelligent security lock with password protection is designed. The MSP430 F5529 was used as the main control unit,an AD keyboard as the password input,and LCD12864 to achieve liquid crystal display,driving the lock core through a stepping motor. When the lock is opened,if the wrong password is entered three times in a row,the input is automatically prohibited within one minute,which can reduce the chance of the password lock being cracked;After entering the door,the system will detect obstacles through the sensor infrared pair tube to determine whether to continue closing. The test results show that the intelligent anti-clamping lock has the advantages of convenient installation,simple operation and effective anti-clamping,which greatly improves the security of residential buildings.