Abstract
With the increase of social material wealth, safety and guarding against theft have become social problems. Meanwhile, the ordinary mechanical locks are hard to meet the need of social management and prevention of burglary. To meet people's requirement of the use of locks, to increase the security, the code locks which use password instead of key emerge as the times require. Moreover they have many advantages, for example they are more convenient and many password.
In order to resolving these insecurity problems of the lock, the design of the simple digital password lock is proposed in this article. The article principally includes next contents. The article describes a solution project in which the microcontroller AT89C51 is CPU and the remote technology is complex with the technology of electronic password lock. The hardware structure and software design of system is explained. The article describes the pith of design and structure of hardware and software in detail and the flowchart of important subroutine is shown. The detailed methods of resistance to intrusions are shown.
Keyword: Microcontroller, Remote control, AT89C51,AT24C01
