红外遥控智能密码锁

红外遥控智能密码锁

红外遥控智能密码锁

  • 适用:本科,大专,自考
  • 更新时间2024年
  • 原价: ¥303
  • 活动价: ¥200 (活动截止日期:2024-03-31)
  • (到期后自动恢复原价)
红外遥控智能密码锁

   红外遥控智能密码锁              摘要:红外线的控智能密码锁是一种比较先进的密码开关,由红外线发射机发射信号,接收机接收信号,然后经放大电路,再由CPU对其进行识别、处理,从而实现智能控制的遥控密码锁的功能。
  关键词:红外线;遥控;密码锁
   
   1引言
   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。随着科学技术的不断发展,人们对日常生活中的安全保险器件的要求越来越高。为满足人们对锁的使用要求,增加其安全性,用密码代替钥匙的密码锁应运而生。密码锁具有安全性高、成本低、功耗低、易操作等优点。
   单片机控制密码锁的功能:将已经固定好的密码存放在Table中,比如,Table DB:02H,02H,01H,05H,即密码为2215。开始我们通过键盘输入4位数的密码,之后,通过扫描键盘获得输入的密码,如果输入的密码正确,即为2215,则门会被打开,如果输入的密码不正确,则显示器会自动显示为0000或****,同时,如果我们之间不小心输错了密码,可以按#键,将显示器清除为0000重新输入,同时输错的次数最多只能为3次,如果再输错的话,蜂鸣器会发出响声而报警。另外,在每次输完密码后,必须按下#键,否则将无法判别输如的密码是否正确,因为只有当按下#键之后,在程序中才会跳转到密码比较代码段。   目     录
1引言 ····························································1
2密码锁介绍·······················································1
2.1拨码盘式全机械密码锁原理·······································1
2.2红外遥控智能密码锁·············································1
3系统硬件设计及实现···············································2
3.1 设计思想及系统框图············································2
3.1.1设计思想·····················································2
3.1.2 系统框图 ····················································3
3.2AT89C52芯片介绍················································3
3.2.1 AT89C52引脚功能说明··········································4
3.3 AT89C2051芯片介绍·············································8
3.4 电源电路·······················································9
3.5键盘及其接口技术···············································9
3.5.1键盘的抖动干扰···············································10
3.5.2抖动干扰的消除···············································10
3.5.3矩阵式键盘的结构组成·········································11
3.6七段LED数码显示器的结构·······································12
3.7红外的发送模块和接收模块原理图·································13
3.8红外的发送和接收···············································13
4系统软件设计·····················································14
4.1程序框图·······················································14
4.2程序清单·······················································17
5检测与调试·······················································19
5.1硬件调试·······················································19
5.1.1排除逻辑故障·················································19
5.1.2排除元器件失效···············································19
5.1.3排除电源故障·················································19
5.2软件调试·······················································19
5.2.1逻辑错误·····················································19
5.2.2功能错误·····················································20
5.3联机仿真调试···················································20
6附录·····························································20
原理图·····························································22
参考文献···························································23
   参考文献
   1 南建辉,王军茹.AT89C51单片机原理及应用实例.北京:清华大学出版社 ,2004
   2 朱运利.单片机技术应用。机械工业出版社,2005
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   4 张大彪.电子技能与实训.电子工业出版社, 2004
   5 韩全力,赵德申.微机控制技术及应用.机械工业出版社, 2004
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   7 林伸茂.8051单片机彻底研究基础.人民邮电出版社,2003
  8 赵广林.Protel 99SE电路设计与制作.电子工业出版社,2005
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  10康华光.电子技术基础.高等教育出版社,2004.7
 

  • 关键词 红外 遥控 智能 密码锁
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