摘要
电子密码锁是一种通过密码输入来控制电路或芯片工作,从而控制机械开关的闭合,完成开锁、闭锁任务的电子产品。应用较广的电子密码锁是以芯片为核心,通过编程来实现的。设计以AT89C51单片机作为密码监控装置和控制核心,结合键盘电路,LCD显示电路,报警电路和开锁机构,利用单片机灵活的编程设计和丰富的I/O端口及其控制的准确性,通过软件程序来控制整个系统实现电子密码锁的基本功能,其性能和安全性已远远超过传统的机械锁。该设计具有保密性好、成本低、功耗低、操作简单、随机开锁成功率几乎为零、密码可变、误码输入保护、多次错误报警、断电记忆等优点。测试结果表明,设计各项功能已达到预期要求。
The electronic combination lock is electronic products, which control the mechanical switch by the control circuit or chip when you input a password. Now the electronic locks are widely used and achieved the function by programming. The design use single chip microcomputer AT89C51 as the combination lock monitoring device and control core, combining with key circuit, LCD display circuit, an alarm circuit and unlocking mechanism, using a flexible programming design and rich I/O port of microcontroller, and its control by software program to control the whole system to realize the electronic combination lock. The performance and security has been far more than the traditional mechanical lock. The design has the advantages of good security, low cost, low power consumption, simple operation, random unlock success rate is almost zero, the password input variable, error protection, many false alarm, power-off memory etc. The test results show that the design of each function has reached the expected requirements.
出处
《自动化与仪器仪表》
2014年第10期42-44,共3页
Automation & Instrumentation
关键词
单片机
AT89C51
电子密码锁
报警
Single Chip Microcomputer
AT89C51
Electronic Combination Lock
Alarm
