The Design of Auto-alarming Electronic Cipher Lock System with AT89C2051

Along with the unceasing development of electronic products to intellectualization and the microminiaturization,the monolithic integrated circuit has become the first-choice controller in the development and manufacture of electronic products.This paper introduces an auto-alarming electronic cipher lock system designed with the AT89C2051 monolithic integrated circuit.Experiments validate that this system has the advantages that the design of the software and hardware is simple,it is easy to develop,the cost is lower,it is safe and reliable,and it is convenient to operate.It could be applied to the dwelling house,the office safety deposit box and the filing cabinet and so on to guard against theft.So,it has certain usability.