基于51单片机的语音电子密码锁系统设计

摘 要

随着社会的不断发展，当代科学技术的水平也在不断提高，人们对于自身财产安

全及人身安全的意识也变得越来越强，过去的传统锁具提供的安全保障已经不足以满

足当代人们的需求，在安防中充当重要角色的锁类产品便迎来了飞速的发展，电子锁

便应运而生。

传统锁具开锁需要配套钥匙、钥匙容易被复制、锁具容易被破解等问题随着时代

的发展，逐渐变成了极大的安全隐患。在电子锁严谨的电路结构、多样的密码组合、

便捷的解锁方式的对比下，越来越多的人更愿意去选择电子锁作为门户及财产的第一

可通过 4*4 矩阵按键输入密码及密码修改等操作，同时通过 JQ8900-16P 语音播报模块

可为用户播放提示音。具备了体积小、反应灵敏、安全高效等特点，可广泛应用于多

种多样的场所及需要安全防盗的设备上。

关键词：电子门锁；单片机；语音识别；矩阵按键

Abstract

With the continuous development of society, the level of contemporary science and

technology also in unceasing enhancement, the consciousness of the people for their property

security and personal safety also becomes stronger and stronger, the past traditional locks to

provide security is not enough to meet the needs of contemporary people, act as important

role in the security lock products and ushered in the rapid development of electronic lock then

property,the traditional lock is gradually replaced by the electronic lock,electronic lock has

become the main choice of people's portal security.

Under the influence of the contemporary science and technology environment,a variety

of electronic locks appear in the market,fingerprint identification password lock,facial

recognition password lock because of the expensive problem can not be applied to cover a

variety of places,people's eyes will focus on the relatively low price of voice electronic

password lock.This design is based on STC89C52 single chip microcomputer design voice

electronic door lock,through the LD3320 non-specific speech recognition module,can quickly

and accurately identify the voice password,the user can enter the password and password

modification through the 4*4 matrix key operation,at the same time through the JQ8900-16P

引言.......................................................................................................................1

1 语音电子密码锁系统设计方案........................................................................1

1.1 课题背景...............................................................................................................................1

1.2 设计任务...............................................................................................................................2

1.3 系统设计方案设计...............................................................................................................2

1.3.1 主控芯片选择方案............................................................................................................2

1.3.2 语音识别模块选择方案....................................................................................................3

1.3.3 语音播报模块选择方案....................................................................................................3

1.4 系统总体设计方案...............................................................................................................4

2 系统硬件设计....................................................................................................5

2.2.5LCD1602 显示模块............................................................................................................9

3 系统软件的设计..............................................................................................12

3.1 主程序设计流程图.............................................................................................................12

3.2 系统软件设计分析.............................................................................................................13

3.2.1LCD1602 功能操作部分..................................................................................................13

3.2.2 语音播报部分..................................................................................................................14

3.2.3 手动操作密码部分..........................................................................................................15

3.2.4 蜂鸣器、LED 及继电器部分.........................................................................................16

4 系统调试及程序分析......................................................................................18

4.1 硬件电路的调试与分析.....................................................................................................18

4.2.2EEPROM 部分程序调试..................................................................................................22