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基于AT89C2051单片机的门禁系统设计
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基于80C51单片机的电子储物柜系统

       电路描述:

安全是我们日常的生活中最关心的问题。 每个人都觉得安全问题是非常至关重要的,在家里的门和安全,可以尽可能多的安全。 为了对于门访问安全因此,我们打算通过引进一个电子密码锁系统,该系统包括一个人得到一个访问某些项目之前要输入密码的安全性,以及在家里,一个房间密码锁系统,不只是普通的单用户密码锁系统,需要用户插入已编程的代码来访问一个房间; 它是一个密码锁系统,有密码而且可以启用多个用户访问。

在基于51单片机的门储物柜,只允许授权人员进入限制区域的门禁系统。 该系统由8位微控制器AT89C2051具有ROM的2K字节的程序存储器完全控制。 该系统具有通过该密码,可以通过它来输入键盘。 当输入的密码与存储在存储器中的口令相等则门被打开。 如果我们输入了错误的密码超过三次,然后报警接通。

LCD的数据引脚连接到P1口和RS,R / W,E引脚连接到P0.2,P0.3,P0.4。 L293D采用旋转电机打开和关闭更衣室。 A 4 * 3键盘用于输入数字0到9,“*”,“#”。 有一个系统菜单,包含了开放式储物柜三个按钮,重设密码,并关闭了更衣室。

基于AT89C2051单片机的门禁系统设计

code:

#include《 reg51.h 》

#define col P2

#define row P3

sbit m1=P3^4;

sbit m2=P3^5;

sbit bu=P0^1;

sbit rs=P0^2;

sbit rw=P0^3;

sbit en=P0^4;

sbit start=P0^5;

sbit rst=P0^6;

sbit mp=P0^7;

sfr lcddata=0x90;

void delay(int a)

{

int i,j;

for(i=0;i for(j=0;j《1100;j++);

}

void command(unsigned char s) //初始化LCD的

{

lcddata=s;

rs=0;

rw=0;

en=1;

delay(5);

en=0;

}

void lcddisplaydata(unsigned char s) // LCD的数据写入

{

lcddata=s;

rs=1;

rw=0;

en=1;

delay(8);

en=0;

}

void displaydata(unsigned char *word)

{

int x;

for(x=0;word[x]!=0;x++) //LCD的数据写入

{

lcddisplaydata(word[x]);

}

}

unsigned char array[3][4]={‘0′,’1′,’2′,’3′,

‘4’,’5′,’6′,’7′,

‘8’,’9′,’*’,’#’};

int n=0;

int m=0;

int i,p,q,r;

void main()

{

unsigned char colloc, rowloc;

unsigned char array1[4];

unsigned char array2[4]={‘3′,’1′,’1′,’2′};

unsigned char array3[4];

LOCKER1:

col=0xFF;

row=0x00;

m1=0;

m2=0;

bu=0;

mp=1;

p=0;

q=0;

r=0;

m=0;

start=1;

rst=1;

command(0x01);

command(0x38);

command(0x0C);

command(0x84);

displaydata(“PRESS KEY”);

command(0xC0);

displaydata(“FROM SYSTEM MENU”);

while(1)

{

if(start==0)

{

p=1;

goto LOCKER2;

}

else if(rst==0)

{

q=1;

goto LOCKER3;

}

}

LOCKER2:

n=0;

command(0x01);

command(0x82);

delay(10);

displaydata(“Enter Your”);

command(0xC3);

displaydata(“Password”);

delay(80);

command(0x01);

command(0x80);

goto LOCKER5;

LOCKER3:

n=0;

command(0x01);

command(0x82);

delay(10);

displaydata(“Enter Current”);

command(0xC4);

displaydata(“Password”);

delay(80);

command(0x01);

command(0x80);

goto LOCKER5;

LOCKER4:

n=0;

m=0;

command(0x01);

command(0x83);

delay(10);

displaydata(“Enter new”);

command(0xC3);

displaydata(” Password”);

delay(80);

command(0x01);

command(0x80);

q=2;

goto LOCKER5;

LOCKER5:

col=0xFF;

while(1)

{

do

{

row=0x00;

colloc=col;

colloc &=0x0f;

}while(colloc!=0x0f);

do

{

colloc=col;

colloc &=0x0f;

}while(colloc==0x0f);

while(1)

{

row=0x0E;

colloc=col;

colloc &=0x0f;

if(colloc!=0x0f)

{

rowloc=0;

break;

}

row=0x0D;

colloc=col;

colloc &=0x0f;

if(colloc!=0x0f)

{

rowloc=1;

break;

}

row=0x0LOCKER11;

colloc=col;

colloc &=0x0f;

if(colloc!=0x0f)

{

rowloc=2;

break;

}

}

if(p==1)

{

if(colloc==0x0E)

{

array1[n]=array[rowloc][0];

n++;

goto LOCKER6;

}

else if(colloc==0x0D)

{

array1[n]=array[rowloc][1];

n++;

goto LOCKER6;

}

else if(colloc==0x0B)

{

array1[n]=array[rowloc][2];

n++;

goto LOCKER6;

}

else if(colloc==0x07)

{

array1[n]=array[rowloc][3];

n++;

goto LOCKER6;

}

}

else if(q==1)

{

if(colloc==0x0E)

{

array1[n]=array[rowloc][0];

n++;

goto LOCKER7;

}

else if(colloc==0x0D)

{

array1[n]=array[rowloc][1];

n++;

goto LOCKER7;

}

else if(colloc==0x0B)

{

array1[n]=array[rowloc][2];

n++;

goto LOCKER7;

}

else if(colloc==0x07)

{

array1[n]=array[rowloc][3];

n++;

goto LOCKER7;

}

}

else if(r==2)

{

if(colloc==0x0E)

{

array1[n]=array[rowloc][0];

n++;

goto LOCKER11;

}

else if(colloc==0x0D)

{

array1[n]=array[rowloc][1];

n++;

goto LOCKER11;

}

else if(colloc==0x0B)

{

array1[n]=array[rowloc][2];

n++;

goto LOCKER11;

}

else if(colloc==0x07)

{

array1[n]=array[rowloc][3];

n++;

goto LOCKER11;

}

}

else if(q==2)

{

if(colloc==0x0E)

{

array2[n]=array[rowloc][0];

n++;

goto LOCKER9;

}

else if(colloc==0x0D)

{

array2[n]=array[rowloc][1];

n++;

goto LOCKER9;

}

else if(colloc==0x0B)

{

array2[n]=array[rowloc][2];

n++;

goto LOCKER9;

}

else if(colloc==0x07)

{

array2[n]=array[rowloc][3];

n++;

goto LOCKER9;

}

}

else if(q==3)

{

if(colloc==0x0E)

{

array3[n]=array[rowloc][0];

n++;

goto LOCKER8;

}

else if(colloc==0x0D)

{

array3[n]=array[rowloc][1];

n++;

goto LOCKER8;

}

else if(colloc==0x0B)

{

array3[n]=array[rowloc][2];

n++;

goto LOCKER8;

}

else if(colloc==0x07)

{

array3[n]=array[rowloc][3];

n++;

goto LOCKER8;

}

}

}

LOCKER6:

if(n《4)

{

lcddisplaydata(‘*’);

goto LOCKER5;

}

else if(n==4)

{

lcddisplaydata(‘*’);

delay(50);

if(array1[1]==array2[1]&&array1[2]==array2[2]&&array1[3]==array2[3]&&array1[0]==array2[0])

{

command(0x01);

command(0x80);

displaydata(“RIGHT PASSWORD”);

delay(50);

m=0;

n=0;

goto LOCKER14;

}

else

{

command(0x01);

command(0x80);

displaydata(“WRONG PASSWORD”);

delay(50);

goto LOCKER15;

}

}

LOCKER7:

if(n《4)

{

lcddisplaydata(‘*’);

goto LOCKER5;

}

else if(n==4)

{

lcddisplaydata(‘*’);

delay(50);

if(array1[1]==array2[1]&&array1[2]==array2[2]&&array1[3]==array2[3]&&array1[0]==array2[0])

{

goto LOCKER4;

}

else

{

goto LOCKER12;

}

}

LOCKER8:

if(n《4)

{

lcddisplaydata(‘*’);

goto LOCKER5;

}

else if(n==4)

{

lcddisplaydata(‘*’);

delay(50);

if(array3[1]==array2[1]&&array3[2]==array2[2]&&array3[3]==array2[3]&&array3[0]==array2[0])

{

command(0x01);

command(0x80);

delay(10);

displaydata(“New Password has”);

command(0xC3);

displaydata(“been set”);

delay(100);

command(0x01);

m=0;

goto LOCKER1;

}

else

{

goto LOCKER13;

}

}

LOCKER9:

if(n《4)

{

lcddisplaydata(‘*’);

goto LOCKER5;

}

else if(n==4)

{

lcddisplaydata(‘*’);

delay(50);

m=0;

goto LOCKER10;

}

LOCKER10:

{

command(0x01);

command(0x80);

delay(10);

displaydata(“Conform Password”);

delay(50);

command(0x01);

q=3;

n=0;

goto LOCKER5;

}

LOCKER11:

if(n《4)

{

lcddisplaydata(‘*’);

goto LOCKER5;

}

else if(n==4)

{

lcddisplaydata(‘*’);

delay(50);

if(array1[1]==array2[1]&&array1[2]==array2[2]&&array1[3]==array2[3]&&array1[0]==array2[0])

{

bu=0;

goto LOCKER1;

}

else

{

goto LOCKER16;

}

}

LOCKER12:

{

command(0x01);

command(0x80);

m++;

if(m《3)

goto LOCKER3;

else

bu=1;

delay(500);

bu=0;

goto LOCKER1;

}

LOCKER13:

{

command(0x01);

command(0x80);

m++;

if(m《3)

goto LOCKER10;

else

goto LOCKER1;

}

LOCKER14:

{

m1=1;

m2=0;

delay(125);

m1=0;

m2=0;

while(mp!=0);

m1=0;

m2=1;

delay(125);

m1=0;

m2=0;

delay(100);

command(0x01);

command(0x80);

goto LOCKER1;

}

LOCKER15:

{

command(0x01);

command(0x80);

m++;

if(m《3)

goto LOCKER2;

else

bu=1;

r=2;

p=0;

q=0;

n=0;

goto LOCKER5;

}

LOCKER16:

{

command(0x01);

command(0x80);

n=0;

goto LOCKER5;

}

}
责任编辑;zl

标签:AT89C2051单片机,门禁系统,
来源:21ic 作者:佚名 时间:2019/12/25 15:27:00
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