基于单片机和无线电遥控技术的密码锁硬件设计

JIMI

论文编号ZXX446  论文字数:18808,页数:39  附任务书，开题报告，外文翻译，原理图，PCB图
基于单片机和无线电遥控技术的密码锁硬件设计
摘要：随着电子工业的发展，当今智能电子密码锁技术也在不断更新，特别是单片机在该领域的应用正不断地向着高、精、尖技术发展，无论功能性，稳定性都比较全面。将无线电遥控技术与密码技术相结合，在保证原有密码锁系统性能的基础上研发新型的遥控密码锁系统。使用户在一定范围内的任何位置都能对保险箱进行开启，可以提高密码的安全性，克服了固定键盘式密码锁的不足。本系统就是基于单片机实现对密码锁远程控制的研发，其硬件设计由遥控发射和遥控接收两个子系统组成，接收部分主要以AT89C52单片机为核心。使用PT2262，PT2272芯片来实现信号的编码和解码。另外，结合移植性及可读性强的C语言程序来实现开锁、报警和显示等功能，同时，采用EEPROM存储器AT24C02使得系统在掉电状态下，仍能够保存密码信息。该系统具有体积小，成本低，性能可靠，使用方便等特点。
关键词：遥控技术  密码锁  编码  解码  单片机

Design of Password-Lock Based on Microcontroller and Remote Control Technology
Abstract：With the development of the electronics industry, today's intelligent electronic lock technology is constantly updated, in particular the application of SCM in the field are constantly toward high precision and advanced technology development, whether functional and stability are more comprehensive. Radio remote control technology will be combined with cryptographic techniques, to ensure that the existing locks in the system performance based on the development of new remote lock system. Enables users to any location within a certain range can be on the safe open, password security can be improved to overcome the fixed keyboard lock deficiencies. The system is based on the single chip on the development of remote control locks, the hardware design from the remote transmitter and remote control receiver of two subsystems, in order to receive some of the major AT89C52 microcontroller as the core. Use PT2262, PT2272 chip encoding and decoding the signals. In addition, the combination of portability and readability of the C language program to achieve lock, alarm and display. At the same time, the use of EEPROM memory AT24C02 power-down mode makes the system still be able to save the password information. The system is small, low cost, reliable, easy to use and so on.
 Keywords: remote control technology   password-lock   code   decode 
  single chip microcomputer 
目   录
1  绪论.1
 1.1 选题的依据及意义1
 1.2 国内外研究及发展趋势1
2  系统组成及其工作原理.3
    2.1 技术要求及主要特色.3
    2.2 系统组成框图及工作原理.3
3  硬件电路的设计.5
    3.1 单片机的选择.5
    3.1.1 时钟电路.6
    3.1.2 复位电路.7
    3.2 遥控发射模块.8
    3.3 遥控接收模块12
    3.4 密码存储模块16
    3.5 键盘及显示模块18
    3.6 报警电路21
    3.7 开锁电路23
4  系统软件的设计.26
    4.1 主程序设计26
    4.2 各模块的程序设计27
    4.2.2 键盘输入模块程序设计28
    4.2.3 密码比对模块程序设计29
    4.2.4 24C02芯片的读写.30
5  调试与结果分析.31
    5.1 硬件的调试31
    5.1.1 PCB板的设计制作.31
    5.1.2 遥控发射模块的调试32
    5.1.3 遥控接收模块的调试32
    5.1.4 密码存储模块的调试33
    5.1.5 键盘及显示模块的调试33
    5.1.6 报警电路的调试33
    5.1.7 开锁电路的调试33
    5.2 软硬的联调34
6  总结.35
致谢.36
参考文献.37
附录 A  原理总图.38
附录 B  PCB图39