基于51單片機(jī)電子密碼鎖系統(tǒng)設(shè)計(jì)
摘 要
隨著科技和人們的生活水平的提高，如何實(shí)現(xiàn)家庭防盜這一問題也變的尤其的突出，傳統(tǒng)機(jī)械鎖由于構(gòu)造簡單，被撬事件屢見不鮮；電子鎖由于其保密性高，使用靈活性好，安全系數(shù)高，受到了廣大用戶的青睞。
本設(shè)計(jì)以單片機(jī)AT89C51作為密碼鎖監(jiān)控裝置的檢測(cè)和控制核心，分為主機(jī)控制和從機(jī)執(zhí)行機(jī)構(gòu)（本設(shè)重點(diǎn)介紹主機(jī)設(shè)計(jì)），實(shí)現(xiàn)鑰匙信息在主機(jī)上的初步認(rèn)證注冊(cè)、密碼信息的加密、鑰匙丟失報(bào)廢等功能。根據(jù)51單片機(jī)之間的串行通信原理，這便于對(duì)密碼信息的隨機(jī)加密和保護(hù)。而且采用鍵盤輸入的電子密碼鎖具有較高的優(yōu)勢(shì)。采用數(shù)字信號(hào)編碼和二次調(diào)制方式，不僅可以實(shí)現(xiàn)多路信息的控制，提高信號(hào)傳輸?shù)目垢蓴_性，減少錯(cuò)誤動(dòng)作，而且功率消耗低；反應(yīng)速度快、傳輸效率高、工作穩(wěn)定可靠等。軟件設(shè)計(jì)采用自上而下的模塊化設(shè)計(jì)思想，以使系統(tǒng)朝著分布式、小型化方向發(fā)展，增強(qiáng)系統(tǒng)的可擴(kuò)展性和運(yùn)行的穩(wěn)定性。測(cè)試結(jié)果表明，本系統(tǒng)各項(xiàng)功能已達(dá)到本設(shè)計(jì)的所有要求。

關(guān)鍵詞:單片機(jī)；密碼鎖；單片機(jī)設(shè)計(jì)，電子鎖。


Electronic Lock Design with 51 Serires Single Chip Controller

Abstract

Along with the exaltation of social science and the living level of people, how carry out the family to guard against theft, this problem also change particularly outstanding.Because of the simple construct of traditional machine lock,the affairs of theft is hackneyed.the electronics lock is safer because of its confidentiality, using the vivid good, the safe coefficient is high, being subjected to the large customer close.
It can carry out the key information to register in the main on board initial attestation, the password information encrypt etc. Go to correspond by letter the principle according to the string between 51 machines, this is easy to encrypt and protect to the passwords information random. Adopt the numerical signal codes,not only can carry out many controls of the road information, raise the anti- interference that signal deliver, reduce the mistake action,but also the power consume is low， Respond quickly,the efficiency deliver is high, work stable credibility etc. The software design adoption the design thought from top to bottom, to make the system toward wear distribute type,turn to the direction development of small, strengthen the system and can expand the stability and circulate.Test the result enunciation, various functions of this system are already all request of this design.
keyword：singlechip;cryptogram lock;singlechip design; electronics lock.

目錄

1 緒論 1
1.1 引言 1
1.2 電子密碼鎖的背景 1
1.3 電子鎖設(shè)計(jì)的意義的本設(shè)計(jì)特點(diǎn) 2
2.系統(tǒng)設(shè)計(jì) 3
2.1系統(tǒng)總設(shè)計(jì)結(jié)構(gòu)圖 3
2.2．開鎖機(jī)構(gòu)設(shè)計(jì) 3
2.2.1主控芯片AT89C51單片機(jī)的簡介 4
3系統(tǒng)硬件設(shè)計(jì) 7
3.1鍵盤設(shè)計(jì) 7
3.2系統(tǒng)電路設(shè)計(jì)： 8
3.2.1 晶振時(shí)鐘電路 8
3.2.2復(fù)位電路設(shè)計(jì) 9
3.2.3串口引腳功能介紹 9
3.2.4 其它引腳 9
3.3電路圖的繪制 9
3.3.1 PROTEL 99 SE簡介： 12
3.4原器件采購 14
3.5電路焊接 14
4.軟件設(shè)計(jì) 17
4.1 系統(tǒng)軟件設(shè)計(jì)整體思路 17
4.2系統(tǒng)軟件設(shè)計(jì)流程圖 18
5 程序調(diào)試 19
5.1 程序調(diào)試用到的軟件及工具 19
5.2 KEIL C51簡介 19
5.3 調(diào)試過程 19
6 設(shè)計(jì)總結(jié)與展望 22
致 謝 23
參考文獻(xiàn) 24
附錄 25