具有报警功能电子密码锁的设计.doc

河南理工大学毕业设计（论文）说明书87具有报警功能电子密码锁的设计摘要在日常的生活和工作中住宅与部门的安全防范、单位的文件档案、财务报表以及一些个人资料的保存多以加锁的办法来解决。若使用传统的机械式钥匙开锁人们常需携带多把钥匙使用极不方便且钥匙丢失后安全性即大打折扣。在安全技术防范领域具有防盗报警功能的电子密码锁逐渐代替了传统的机械式密码锁电子密码锁具有安全性高、成本低、功耗低、易操作等优点。本文从经济实用的角度出发采用美国Atmel公司的单片机AT89C51作为主控芯片与数据存储器单元结合外围的矩阵键盘输入、LCD液晶显示、报警、开锁等用汇编语言编写的主控芯片控制程序与EEPROMAT24C02读写程序相结合并用Proteus软件进行仿真设计了一款可以多次更改密码具有报警功能的电子密码控制系统。这种密码锁的电路设计具有防试探按键输入、智能控制上锁、开锁、报警、修改密码等多种功能。密码长度可变、保密性强、灵活性高、应用日益广泛。关键词密码锁单片机报警LCD显示自动拨号ThewarningfunctionelectroncombinationlockdesignAbstractInthedailylifeandtheworkthemeanswhichthehousinganddepartment'ssafeguardunit'sdocumentfilethefinancialreportingaswellasanindividualmaterial'spreservationmanylockssolves.Ifusetraditionmechanicalkeyunblankingthepeopleoftenmustcarrymanykeytheusearenotextremelyconvenientandafterthekeylosesthesecuritynamelysellsatadiscountgreatly.Inthesafetyworkguarddomainhadthesecuritywarningfunctionelectroniccombinationlocktoreplacethetraditionalmechanicalcombinationlockgraduallytheelectroniccombinationlockhadthesecuritytobehighthecostwaslowthepowerlossloweasytooperateandsoonmerits.ThisarticlefromeconomicalpracticalangleembarkingusesAmericanAtmelCorporation'smonolithicintegratedcircuitAT89C51totakethemastercontrolchipandthedata-carrierstorageunitunifiestheperipherythematrixkeyboardinputtheLCDliquidcrystaldisplaythewarningtheunblankingandsoonread-writeprocedureunifieswiththeassemblylanguagecompilation'smastercontrolchipcontrolprocedureandEEPROMat24C02andcarriesonthesimulationwiththeProteusoftwaredesignedonesectiontobepossibletochangethepasswordmanytimeshadthewarningfunctionelectronicpasswordcontrolsystem.Thiskindofcombinationlock'scircuitdesignhasagainstprobepressedkeyinputtheintelligentcontroltocagetheunblankingthewarningtherevisionpasswordandsoon