Design and Realization of Electronics Password Security Locks
Caijie Luo, Mindan Bai · Advances in engineering research/Advances in Engineering Research · 2014
We g ive a detailed description of the design of a double 8-digit digitalization encrypted loek in the second part ofthe thesis．The curl consists ofthree parts:keyboard interface module, control module and aisplay module．The keyboard interface module includes the liming circuit,signal scan and read circuit,tremble elimination circuit and decoding eirenit．The control module of the 1ock inelndes eontroI for input,storage．set and reset of the function keys ， register operation,set and reset of eneryption codes ， enable and disable of the lock.The electronic password security lock replaces a key with a password, saving people the trouble of taking keys and fundamentally overcoming the poor security of ordinary locks.Made up of a Micro Controller Unit, a matrix keyboard, an LCD monitor and an alarm system, its control system is designed with practical functions but low cost.Apart from the basic functions of a password lock such as password unlocking, ultra-frequency locking, alarming and password modification, the system of the electronic password security lock can also achieve power-down password storage and acoustooptical warning.It is characterized by low cost and simple design, which can be applied and promoted in practice.