基于单片机的指纹门禁设计STC89C52_电路方案

功能：

研究内容：本课题以单片机为核心采用C语言来开发一指纹电子密码锁。系统拟在Altium?Designer9开发平台上设计原理图，并绘制PCB并制成单片机开发板，然后根据原理图将相关元器件焊接到开发板上。软件部分在Keil?uVision4开发平台上进行相关代码的编写和调试。然后利用串口助手工具将代码下载到开发板进行运行，观察硬件各模块是否可以正常运行。以及测试结果是否能够满足需求，便于及时调整设计。

课题的主要任务是设计出一个可以录入指纹，并可对录入指纹进行匹配比较，如果正确即可开锁。

设置有管理员密码，管理员密码内置不可修改，密码具有掉电存储功能。
输入管理员密码后进入指纹录制模式，录入自己的指纹
录制成功后，支持指纹开锁，指纹匹配成功后，继电器吸合表示开门，并且语音提示开锁成功
当遇到震动时，语音提示，请勿强行开锁，并且可以通过sim模块发送报警短信
单片机内置用户密码，匹配成功后可以通过app使用密码开锁。

重点难点：指纹的录制与识别，语音提示，并且具有报警系统，当遇到震动时时可以发出语音报警和sim短信报警，硬件元器件较多使用了大量串口，pcb排版要注意，避免各个部件之间的干扰。

电路原理图：

资料内容包括：

部分程序：

#include <intrins.h>
#include <INTRINS.H>
#include"lcd1602.h"
#include "string.h"

sbit led= P0^7;
sbit buz= P2^0;
sbit j1= P2^1;
sbit shock= P2^2;

sbit in_1 = P1^4; //°??ü
sbit in_2 = P1^5;
sbit in_3 = P1^6;
sbit in_4 = P1^7;

sbit out_1 = P3^7; //°??ü
sbit out_2 = P3^6;
sbit out_3 = P3^5;
sbit out_4 = P3^4;

unsigned char password[6] = {1,2,3,4,5,6};
unsigned char password2[6] = {1,2,3,4,5,6};
unsigned char runCount=0;
unsigned char R_flag=0;

unsigned char number = 0;
unsigned char recSign = 0;//????????±ê??
unsigned char rec[16]; //????????????
unsigned char recIndex = 0;//????????
unsigned char recTemp = 0;//????????
char zf[3];
char rec_num = 0; //????????????

uchar sign = 0;

#define Max_User 10
#define error 2
#define S2RI 0x01 ? ?//????2???????????ó±ê????
#define S2TI 0x02 ? ?//????2·??????????ó±ê????

unsigned char num_4x4=0;
char KeyVal = 0;

int count = 0; //?¨?±?÷±???

#define Max_User 10
#define error 2

char user_num = 0;
unsigned char ?? ?SaveNumber=0,searchnum=0;
unsigned int ??? ?SearchNumber=0;
unsigned int ?? ?clk0=0;
unsigned int ?? ?rec_number = 0; //????????
unsigned char str[3]={0,'?','?'};

bit modeflag=0,clearallflag=0,changeflag=0;//????????±?????????????1??????????????,??????????SaveNumber++

//?????????¨??/

//Verify ?Password ? ???é?¤?è±?????????
unsigned char code VPWD[16]={16,0X01 ,0Xff,0xff,0xff,0xff, 0x01,0,7,0x13,0x00,0x00,0x00,0x00,0x00,0x1b};?? ? //????12??

//?è???è±?????????
unsigned char code STWD[16]={16,0X01 ,0Xff,0xff,0xff,0xff, 0x01,0,7,0x12,0x00,0x00,0x00,0x00,0x00,0x1a};?? ? //????12??

//GetImage ? ? ? ? ? ???????????????????÷??????????
unsigned char code GIMG[14]={12, 0X01 ,0Xff,0xff,0xff,0xff, 0x01, 0,3,1,0x00,0x05};?? ?//????12??

//Gen Templet1 ? ? ? ????ù???????????ú?????????÷1
unsigned char code GENT1[14]={13,0X01 ,0Xff,0xff,0xff,0xff,0x01,0,4,2,1,0x00,0x08};?? ?//????12??

//Gen Templet2 ? ? ? ????ù???????????ú?????????÷2
unsigned char code GENT2[14]={13,0X01 ,0Xff,0xff,0xff,0xff,0x01,0,4,2,2,0x00,0x09}; //????12??

//Search Finger ? ? ?????CharBufferA?òCharBufferB???????÷???????÷?????ò??·???????
unsigned char code SEAT[18]={17, ?0X01 ,0Xff,0xff,0xff,0xff, 0x01, ? 0,8, 4,1,0,0, ? ?0,0x65, ?0x00,0x73};?? ?//????12??

//Merge Templet ? ? ?;??CharBufferA??CharBufferB???????÷?????????ú????°????á??????ModelBuffer??
unsigned char code MERG[14]={12, ?0X01 ,0Xff,0xff,0xff,0xff, 0x01, ?0,3,5 , 0x00,0x09};//????12??

//Store Templet ? ? ?????ModelBuffer??????????????flash????????
unsigned char code STOR[16]={15, ?0X01 ,0Xff,0xff,0xff,0xff, 0x01, ?0,6,6,2, ? ? 0x00,0x00, ? ? 0x00,0x0f}; //????12??

//DEL one templet
unsigned char code DELE_one[16]={16, 0X01 ,0Xff,0xff,0xff,0xff, 0x01, ? 0,7, ?0x0c, ? ?0x00,0x00, 0,1, 0x00,0x15};

//DEL templet ? ? ?;??????????
unsigned char code DELE_all[12]={12,0X01 ,0Xff,0xff,0xff,0xff, 0x01, 0,3, ?0x0d,0x00,0x11};

//?????????¨??-------?á??///

//?ê?¨??
#define FALSE 0
#define TURE ?1

//×????¨??±í
#define on ? ??? ?1
#define off ? ?? ?0

#define MAX_NUMBER ? ?63
#define _Nop() ?_nop_()

unsigned char ?? ??? ? ?FifoNumber=0;
unsigned char ? FIFO[MAX_NUMBER+1]={0};

//?ê?¨??------------?á??

/*********1???????±???ò**********/
void delay1ms(unsigned int t)
{
unsigned int i,j;
for(i=0;i<t;i++)
for(j=0;j<120*6;j++)
;
}
void delay10ms(unsigned int c) ? //?ó?? 0us
{
unsigned char a, b;
//--c?????????????????±?ò?????????????ù????for??????????????????????--//
for (;c>0;c--)
{
for (b=38*6;b>0;b--)
{
for (a=130;a>0;a--);
}
}
}
/********************************************************************
* ???? : delay()
* ???? : ???±,???±?±???? 100us * t???????¨???í?????±???????¨?ó????
* ???? : t
* ???? : ??
***********************************************************************/
void delay(unsigned int t)
{
unsigned int i,j;
for(i=0; i<t; ?i++)
for(j=0; j<10; j++);
}

void beep()
{
buz=0;
delay10ms(30);
buz=1;
delay10ms(30);
}

void KeyDown(void) ?//???????ó?ü????·??????????÷°??ü???ü???????ü???????§×????¨????
{
KeyVal = 99;
num_4x4 = 99;
out_1 = 0;
out_2 = 1;
out_3 = 1;
out_4 = 1;
delay10ms(2);
if(in_1==0)
{
KeyVal = 0;
}
else if(in_2==0)
{
KeyVal = 1;
}
else if(in_3==0)
{
KeyVal = 2;
}
else if(in_4==0)
{
KeyVal = 3;
}
delay10ms(2);
out_1 = 1;
out_2 = 0;
out_3 = 1;
out_4 = 1;
delay10ms(2);
if(in_1==0)
{
KeyVal = 4;
}
else if(in_2==0)
{
KeyVal = 5;
}
else if(in_3==0)
{
KeyVal = 6;
}
else if(in_4==0)
{
KeyVal = 7;
}
delay10ms(2);
out_1 = 1;
out_2 = 1;
out_3 = 0;
out_4 = 1;
delay10ms(2);
if(in_1==0)
{
KeyVal = 8;
}
else if(in_2==0)
{
KeyVal = 9;
}
else if(in_3==0)
{
KeyVal = 10;
}
else if(in_4==0)
{
KeyVal = 11;
}
delay10ms(2);
out_1 = 1;
out_2 = 1;
out_3 = 1;
out_4 = 0;
delay10ms(2);
if(in_1==0)
{
KeyVal = 12;
}
else if(in_2==0)
{
KeyVal = 13;
}
else if(in_3==0)
{
KeyVal = 14;
}
else if(in_4==0)
{
KeyVal = 15;
}

if(KeyVal!=99)
{
beep();
switch(KeyVal)
{
case 0:?? ? num_4x4 = 1;
break;
case 1:?? ? num_4x4 = 4;
break;
case 2:?? ? num_4x4 = 7;
break;
case 3:?? ? num_4x4 = 10;
break;
case 4:?? ? num_4x4 = 2;
break;
case 5:?? ? num_4x4 = 5;
break;
case 6:?? ? num_4x4 = 8;
break;
case 7:?? ? num_4x4 = 0;
break;
case 8:?? ? num_4x4 = 3;
break;
case 9:?? ? num_4x4 = 6;
break;
case 10: num_4x4 = 9;
break;
case 11: num_4x4 = 11;
break;
case 12: num_4x4 = 12;
break;
case 13: num_4x4 = 13;
break;
case 14: num_4x4 = 14;
break;
case 15: num_4x4 = 15;
break;
}
}
//?? ?Lcd1602_Com(0x80);
//?? ?Lcd1602_Data('0'+num_4x4%100/10);
//?? ?Lcd1602_Data('0'+num_4x4%10);
delay10ms(50);
}