With the development of the living standard of the people, how to achieve security of the family also become particularly prominent. Traditional mechanical lock because of its simple structure, prizing frequent events, and there is always the key lock can be copied, which is the mechanical problem of the key can not be avoided. With the development of electronic technology, there will be microprocessor technology, IC card technology used in door locks, have had a mechanical-electrical integration on the perfect combination of products, that is, IC card lock.
In this paper, the design of the Intelligent Community of the electronic door locks, IC card to be AT24C01, AT89S52, as a controller, with software written in C51, the IC card can be read and written. It can be achieved using IC card and unlock password can be easily re-set the password, the new card features write password. It can be achieved using IC card and unlock password can be easily re-set the password, the password for the new cards to write. This electronic door locks can be used for intelligent community of the scope of universal relevance.
Keywords:Family security、Electronic door locks、microprocessor、IC card、Password