ABSTRACT
The rapid development of electronic technology have brought tremendous changes in the production of the old locks, and as the modern electronic technology and the mechanical technology are combined ,many advanced locks are produced such as voice locks, magnetic locks, password locks, remote locks, figerprint locks and so on. The main topics on the infrared remote-control electronic password-lock design, a packet of infrared remote control electronic password-lock the design of hardware and software in the design, the design of the main tasks is to achieve infrared remote-control lock, beginning in the proceedings to amend your password, and alarm functions. This design uses two main chips, AT89S52 and SC3010, AT89S52 is the main chip, sc3010 is infrared emission chip. As each of the infrared emission chip encoding process is different, so you decoding, you must first understand the coding process to be the correct decoding. In this design, also mentioned how the decoding, in this design, is to decode the most important issue.
Keywords：password lock，infrared，decoder
