摘要
设计一种以ATmega16L单片机为主控芯片的电子密码锁系统。该系统利用单片机自带的EEPROM存储器保存开锁密码;通过矩阵键盘进行操作可以开锁或重新设置开锁密码;采用UPS不间断电源供电,保证系统在停电期间的正常工作;利用单片机的睡眠模式进一步降低系统的功耗,有利于停电时延长UPS的供电时间;利用单片机内部定时器进行计时可以减轻CPU的负荷,有利于系统的稳定运行。该系统充分利用了单片机资源,简化了系统设计,提高了系统的安全可靠性。
The design of an electronic lock control system was presented in this article and ATmegal6L was used as the main control unit for this system. This system memorized the password in the built-in EEPROM storage. With the matrix keypad operation, users could realize unlocking and password resetting functions. An UPS guaranteed the normal operation of the system even if there was a power failure. The efficiency of the system could be improved while using the sleep mode of the MCU, this would extend the working length of the UPS when it was out of power. The system could also reduce the load of the CPU by using the internal timer, and simultaneously, guarantee the stable operation of the system. The application of the MCU simplifies the design of the system and also boosts the safety of the system.
出处
《装备制造技术》
2017年第2期63-67,70,共6页
Equipment Manufacturing Technology
基金
广西高等学校科研项目资助(2013YB175)
广西科技大学博士启动基金(院科博12Z05)
关键词
电子密码锁
单片机
键盘矩阵
密码
electronic lock
microcontroller
matrix keypad
password
