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电子密码锁
摘要：电子密码锁自身有着很高的平安性并且本钱低、功耗小、操作简单等优点。在很多的平安领域内具有技术和报警功能的的数字密码锁已经逐渐取代了传统的钥匙式机械锁并且抑制了机械式密码锁的密码数量少、修改不方便等劣，使密码锁在性能及技术上都有了很大程度上的提升。该电子密码锁由四局部组成，密码设定及输入电路、报警电路、计时电路和电源电路。也可以划分为三大模块即密码设定及输入模块、计时报警模块、电源模块。其中密码设定及输入模块是通过触发器来设定密码并且进展输入，计时报警模块是用计数器来计用户输入密码的时间假设超时即通过555来实现报警，最后电源电路是用来给上述模块供电。这就是该电子密码锁的主要构造。
关键词：计数器，触发器，555定时器，密码锁
Abstract：Electronic cipher lock with safety and low cost, low power consumption, simple operation and so on high. In the field of security many skilled and alarm functions of digital password lock has been gradually replaced the traditional mechanical lock key and overcomes the number of mechanical cipher lock password less, it is not convenient to modify the bad, make the cipher lock in performance and technology have been improved digital password lock is composed of four parts,the password settings and input circuit, alarm circuit, a timingcircuit and a power circuit. Also can be divided into three majormodules: password setting and input module, alarm module, power password setting and input module is the trigger to set a passwordand enter, timing alarm module is counter to the user to enter a password if the timeout time by 555 to achieve the alarm, the powersupply circuit is used to give the module power supply. This is themain structure of the digital password lock.
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Keywords：Counter， trigger， 555 timer， passwordlock
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