基于多种通信方式的密码锁系统设计摘要：针对传统机械锁的各种缺点和重要部门安全性的要求，提出一种基于红外遥控的密码锁设计方案，通过此方案设计的密码锁电路可以满足安全性要求，也能适应特殊环境的使用需求。本文介绍的一种由8052编程实现的控制电路，具有按键指示，控制开锁，控制报警，遥控开锁等功能。红外遥控密码锁的应用研究主要应用了红外线编码及解码技术，并通过单片机实现密码的设置、修改及识别功能。设计电路主要有红外线编码电路、红外线解码电路和键盘及显示电路组成。具有保密性强，灵活性高，适用范围广，特别适合家庭，车库，工厂等场所。关键词：红外线，密码锁，AT89C51单片机AbstractEachkindofshortcomingwhichandIntegralpartsecurityrequestlocksinviewofthetraditionalmachinery,proposedthatonekindbasedoninfraredremotecontrol’scombinationlockdesignproposal,maysatisfythesecurerequestthroughthisprojectdesign’scombinationlockelectriccircuit,canalsoadaptthespecialenvironmentusedemand.Thisarticleintroducedthatonekindthecontrolcircuitwhichrealizesbythe8052programming,hasthepressedkeytoinstruct,controlunblanking,controlwarning,functionsandsoonremotecontrolunblanking,theinfraredremotecontrolcombinationlock’sappliedresearchhasmainlyappliedtheinfraredcodeandthedecodingtechnology,andrealizesthepasswordestablishment,therevisionandtherecognitionfunctionthroughthemonolithicintegratedcircuit.Thedesignacircuitmainlybytheinfraredencodecircuit,theinfrareddecodingunblankingelectriccircuitandthekeyboardanddemonstrationelectricitytheroadiscomposed.Hassecret,theflexibilityishigh,theapplicablescopeisbroad,especiallyqualifyfamily,garage,placesandsoonfactory.Keyword:infraredmonolithic；combinationlock；8052目录1绪论.......................................................................................................................................................................11.1课题背景...........................................................................................................................................................11.2选题背景及研究的目的与意义.......................................................................................................................21.2.1选题背景.......................................................................................................................................................21.2.2研究的目的与意义.......................................................................................................................................31.3红外遥控密码锁国内外的研究现状及存在问题...........................................................................................31.4研究方法...........................................................................................................................................................41.5红外线的基本知识...........................................................................................................................................41.6密码锁的发展趋势与特点...............................................................................................................................52方案设计.............................................................................................................................................................62.1方案选择..............................................................................................................................................
