基于单片机的电子门锁系统设计

AbstractLock from ancient times is the protection of property of the iron general.Poormechanical lock material,poor violence resistance,strong replicability,and even a keyopen multiple doors.Code lock because of high safety factor,easy to operate,strongconfidentiality,gradually into people's lives.A kind of intelligent electronic door lock is designed with STC89C52 as controller.This code lock takes single chip microcomputer as the core of measurement and controland monitoring device,and adopts two kinds of unlocking methods:matrix keyboardpassword and fingerprint password.LCD12864 system uses LCD real-time displayupdate,with the function of password modification.If you find yourself in the wrongoperation when unlocking or changing the password,or if you find someone lookingnearby,you can exit the input operation to ensure security to a certain extent.Thefingerprint code lock mainly uses everyone's unique biological characteristics to unlock,which has unique characteristics and is naturally carried by biological individuals,which is simple and practical.The test results show that all the functions of the systemmeet all the requirements of this design.Key words:Fingerprint code lock;STC89C52 microcontroller;matrix keyboard