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(完整 word)基于单片机的电子密码锁设计(终稿)
Microcomputer
Abstract:As sealed device, the lock added to such objects like door, box, drawer
etc, can be opened with specified key. Since the ancient time, lock is a kind of security,
guaranteeing people’s property safety even life safety. With the development of
human history and more attention paid to property safety and life safety, various
multi-functional locks can be seen in the world. Traditional mechanical locks
people use in life are gradually replaced by electronic combination lock
characterized with better safety performance and more functions.
In the modern society , electronic combination lock is a noun familiar to
everyone. Usually, the door of community is equipped with electronic combination
lock。 This paper will introduce an electronic combination lock. This lock controls
the electric circuits and the performance of chips by identifying password. Thus,
the openness and closeness of the lock can be controlled, and the task of electronic
lock device can be completed.
This design is about combination lock , based on the AT89C51 single-chip
microcomputer as the core of controlling goals。 This design in which the AT89C51
single—chip microcomputer as the core of the controlling goals cooperated with
relevant circuits and software programs can achieve such functions like password
input and modification, information display, keyboard locking, warning system, and
the openness and closeness of the lock etc。 In this design, the openness of lock and
alarming are according to identifying the password, and password revision and
storage is achieved by the function of the AT24C02 serial storage。
Electronic combination lock described in this paper is characterized with high
security, low power consumption, and simplicity of operation etc.
Keywords: Single—chip microcomputer, Combination lock, Electronic lock, Matrix
keyboard, Power lost storage
目录
第 1 章 绪论 ...................................................1
1。1 电子密码锁简介 ..........................................1