基于at89c51單片機的紅外遙控密碼鎖畢業(yè)設(shè)計

1、陜西理工學(xué)院畢業(yè)設(shè)計第 1 頁 共 56 頁題 目 基于 51 單片機的紅外遙控密碼鎖 陜西理工學(xué)院畢業(yè)設(shè)計第 3 頁 共 56 頁In the day-to-day living and working in the residential sector and the safety precautions, units of paper files, financial statements, and

2、 some personal information to the preservation of more than locking the solution to the problem. If the use of traditional mechanical key to unlock, people often need to carry more keys, a very inconvenient to use,

3、 and after the loss of key security that is greatly reduced. With anti-theft alarm function instead of the password is less electronic lock, security, poor mechanical lock is an inevitable trend。 With the contin

4、uous development of science and technology, in the daily lives of people on insurance safety devices increasingly demanding. To meet the requirements of the use of locks to increase their security, with a pas

5、sword instead of the password key lock came into being. Password lock is safe, low cost, low power consumption, easy to operate, Remember the password to unlock it ， and other advantages. At present the u

6、se of electronic locks are mostly based on microprocessor, main devices MCU, the encoder and decoder built into software.SCM system from the system（Mainly STC89C51 microcontroller minimum system）, 4×4 Matri

7、x keyboard, LCD display and alarm system, With the settings, modify the six user password, Ultra alarm, Ultra Lock, Password error alarm and other functions(P0 port to control the design of the LCD display, Password cor

8、rectly display password ok！Password error display password error! For more than three times to enter the error automatically lock. The P1 port control keyboard matrix containing the number keys 0-9 and A-F functio

9、n keys). In addition to the above basic password lock feature, based on the actual situation can also add a remote control functions. The system cost-effective, practical function. The system cost-effective, pract