电子密码锁设计实验报告.doc

电子密码锁设计实验报告
摘要:
密码锁又称电子锁,它的主要功能是:1)用数字方式输入开锁密码,输入密码正确时开锁;2)如果密码有误或者输入时间过长,则发出报警信号。
目录:
、系统结构与技术指标
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、整体方案设计
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、单元电路设计
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、电路测试
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、总结
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第一章、系统结构与技术指标

密码锁:用数字键方式输入开锁密码,输入密码时开锁;如果输入密码有误或者输入时间过长,则发出警报。
密码锁的系统结构框图如下图 1-1 所示,其中数字键盘用于输入密码,密码锁用于判断密码的正误,也可用于修改密码。开锁绿亮表示输入密码正确并开锁,报警红亮表示密码有误或者输入时间超时。
开锁绿
密码锁
输入密码
数字键盘

报警红

图1-1 密码锁系统结构框图

开锁密码为8位十进制数字,由按键输入,按“确认”键后,输入的数字有效。
输入的8位数字与预设的密码相同时开锁,用绿灯亮,红灯灭表示。数据有误时或输入的密码时间过长即报警,红灯亮。
密码可以通过键盘设定或修改。
输入的数字间隔时间小于或等于15s。超过时限则报警,同时电子锁复位。
具有手动、自动复位功能。
(可增加标准