单片机八层电梯控制系统代码

ID:1137639 · 发表于 2026-2-11 17:03

#include <reg52.h> //调用单片机头文件
#define uchar unsigned char //无符号字符型宏定义变量范围0~255
#define uint unsigned int //无符号整型宏定义变量范围0~65535
//数码管段选定义 0 1 2 3 4 5 6 7 8 9
uchar code smg_du[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0xdf,0xdb
// A B C D E F 不显示
}; //断码
uchar dis_smg[8] = {0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8};
bit flag_100ms,flag_1s;
bit flag_stop = 1; //用做到了相应的楼停下
sbit beep = P2^6;
sbit xia = P2^0;
sbit zhong = P2^1;
sbit shang = P2^2;
uchar value2;
sbit led1 = P1^7; //8个发光二极管定义
sbit led2 = P1^6;
sbit led3 = P1^5;
sbit led4 = P1^4;
sbit led5 = P1^3;
sbit led6 = P1^2;
sbit led7 = P1^1;
sbit led8 = P1^0;
uchar dt_1; //1楼电梯标志位
uchar dt_2; //2楼电梯标志位
uchar dt_3; //3楼电梯标志位
uchar dt_4; //4楼电梯标志位
uchar dt_5; //5楼电梯标志位
uchar dt_6; //6楼电梯标志位
uchar dt_7; //7楼电梯标志位
uchar dt_8; //8楼电梯标志位
uchar dt_value = 1; //电梯到哪一层的变量
uchar dt_s_x ; //电梯上下的标志位
/***********************1ms延时函数*****************************/
void delay_1ms(uint q)
{
uint i,j;
for(i=0;i<q;i++)
for(j=0;j<120;j++);
}
/********************独立按键程序*****************/
uchar key_can; //按键值
void key() //独立按键程序
{
static uchar key_new;
key_can = 20; //按键值还原
P3 |= 0xff;
if(P3 != 0xff) //按键按下
{
delay_1ms(1); //按键消抖动
if((P3 != 0xff) && (key_new == 1))
{ //确认是按键按下
key_new = 0;
switch(P3)
{
case 0xfe: key_can = 1; break; //得到按键值
case 0xfd: key_can = 2; break; //得到按键值
case 0xfb: key_can = 3; break; //得到按键值
case 0xf7: key_can = 4; break; //得到按键值
case 0xef: key_can = 5; break; //得到按键值
case 0xdf: key_can = 6; break; //得到按键值
case 0xbf: key_can = 7; break; //得到按键值
case 0x7f: key_can = 8; break; //得到按键值
}
}
}
else
key_new = 1;
}
void key_with()
{
if(key_can == 1)
{
led1 = 1; //点亮发光二极管
dt_1 = 1; //
}
if(key_can == 2)
{
led2 = 1; //点亮发光二极管
dt_2 = 1;
}
if(key_can == 3)
{
led3 = 1; //点亮发光二极管
dt_3 = 1;
}
if(key_can == 4)
{
led4 = 1; //点亮发光二极管
dt_4 = 1;
}
if(key_can == 5)
{
led5 = 1; //点亮发光二极管
dt_5 = 1;
}
if(key_can == 6)
{
led6 = 1; //点亮发光二极管
dt_6 = 1;
}
if(key_can == 7)
{
led7 = 1;
dt_7 = 1;
}
if(key_can == 8)
{
led8 = 1;
dt_8 = 1;
}
}
/*********************当电梯不动时、判断是向上、还是向下**********************/
void tiandi_shang_xia()
{
static uchar value;
if(dt_s_x == 0)
{
flag_stop = 1;
if(dt_value == 1) //电梯在第1层停下不走了
{
value = dt_2 + dt_3 + dt_4 + dt_5 + dt_6 + dt_7 + dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上
shang = 0; //显示上
zhong = 0;
xia = 1;
}
}
if(dt_value == 2) //电梯在第2层停下不走了
{
value = dt_3 + dt_4 + dt_5 + dt_6 + dt_7 + dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
if(dt_value == 3) //电梯在第3层停下不走了
{
value = dt_4 + dt_5 + dt_6 + dt_7 + dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1 + dt_2;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
if(dt_value == 4) //电梯在第4层停下不走了
{
value = + dt_5 + dt_6 + dt_7 + dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1 + dt_2 + dt_3;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
if(dt_value == 5) //电梯在第5层停下不走了
{
value = dt_6 + dt_7 + dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1 + dt_2 + dt_3 + dt_4;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
if(dt_value == 6) //电梯在第6层停下不走了
{
value = dt_7 + dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1 + dt_2 + dt_3 + dt_4 + dt_5;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
if(dt_value == 7) //电梯在第7层停下不走了
{
value = dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1 + dt_2 + dt_3 + dt_4 + dt_5 + dt_6;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
if(dt_value == 8) //电梯在第8层停下不走了
{
value = dt_8;
if(value != 0)
{
dt_s_x = 1; //电梯向上走
shang = 0; //显示上
zhong = 0;
xia = 1;
}
value = dt_1 + dt_2 + dt_3 + dt_4 + dt_5 + dt_6;
if(value != 0)
{
dt_s_x = 2; //电梯向下走
xia = 0; //显示下
zhong = 0;
shang = 1;
}
}
}
}
/****************电梯向上、做最后的判断是否还要继续向上****************/
void dt_shang_guan()
{
uchar value;
if(dt_s_x == 1) //电梯向上做最后的判断是否还要继续向上
{
if(dt_value == 1) //在第1层
{
value = dt_2 + dt_3 + dt_4 + dt_5 + dt_6 + dt_7 + dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 2) //在第2层
{
value = dt_3 + dt_4 + dt_5 + dt_6 + dt_7 + dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 3) //在第3层
{
value = + dt_6 + dt_7 + dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 4) //在第4层
{
value = dt_5 + dt_6 + dt_7 + dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 5) //在第5层
{
value = dt_6 + dt_7 + dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 6) //在第6层
{
value = dt_7 + dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 7) //在第7层
{
value = dt_8;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 8) //在第8层
{
dt_s_x = 0; //电梯停下不动了
shang = 1; //关闭上字
zhong = 1;
}
}
}
/****************电梯向下、做最后的判断是否还要继续向下****************/
void dt_xia_guan()
{
uchar value;
if(dt_s_x == 2) //电梯向下做最后的判断是否还要继续向下
{
if(dt_value == 1) //在第1层
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
flag_stop = 1;
}
else if(dt_value == 2) //在第2层
{
value = dt_1;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 3) //在第3层
{
value = dt_1 + dt_2;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 4) //在第4层
{
value = dt_2 + dt_3;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 5) //在第5层
{
value = dt_1 + dt_2 + dt_4;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 6) //在第6层
{
value = dt_1 + dt_2 + dt_3 + dt_4 + dt_5;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 7) //在第7层
{
value = dt_1 + dt_2 + dt_4 + dt_5+ dt_6;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
else if(dt_value == 8) //在第8层
{
value = dt_3 + dt_4 + dt_5 + dt_6 + dt_7;
if(value == 0) //说明上面没有人按下
{
dt_s_x = 0; //电梯停下不动了
xia = 1; //关闭上字
zhong = 1;
}else
flag_stop = 1;
}
}
}
/***********************电梯处理函数************************/
void td_dis()
{
uchar value,value1;
value = dt_1 + dt_2 + dt_3 + dt_4 + dt_5 + dt_6 + dt_7 + dt_8;
if(value != 0)
{ //100ms
if(flag_stop == 1) //到相应的楼了要停下
{
/***************************向上走电梯***********************************/
if(dt_s_x != 0) //向上走电梯
{
value1 ++;
if(value1 >= 10) //1s
{
value1 = 0;
if(dt_s_x == 1) //向上走电梯
{
dt_value ++;
shang = 0; //显示上字
zhong = 0;
}
if(dt_s_x == 2) //向下走电梯
{
dt_value --;
xia = 0; //显示下字
zhong = 0;
}
if(dt_value == 1) //当到了第一层的时候
{
if(dt_1 == 1)
{
led1 = 0; //关闭第一层发光二极管
dt_1 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 2) //当到了第二层的时候
{
if(dt_2 == 1)
{
led2 = 0; //关闭第二层发光二极管
dt_2 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 3) //当到了第3层的时候
{
if(dt_3 == 1)
{
led3 = 0; //关闭第3层发光二极管
dt_3 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 4) //当到了第4层的时候
{
if(dt_4 == 1)
{
led4 = 0; //关闭第4层发光二极管
dt_4 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 5) //当到了第5层的时候
{
if(dt_5 == 1)
{
led5 = 0; //关闭第5层发光二极管
dt_5 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 6) //当到了第6层的时候
{
if(dt_6 == 1)
{
led6 = 0; //关闭第6层发光二极管
dt_6 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 7) //当到了第7层的时候
{
if(dt_7 == 1)
{
led7 = 0; //关闭第7层发光二极管
dt_7 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
else if(dt_value == 8) //当到了第8层的时候
{
if(dt_8 == 1)
{
led8 = 0; //关闭第8层发光二极管
dt_8 = 0; //清零电机在的标志
flag_stop = 0; //到停下
beep = 0; //打开蜂鸣器
}
}
}
}
}
}
if(flag_stop == 0)
{
value2 ++;
if(value2 % 5 == 0)
{
if(dt_s_x == 1) //上
{
shang = ~shang;
zhong = ~zhong;
}
if(dt_s_x == 2) //下
{
zhong = ~zhong;
xia = ~xia;
}
}
if(value2 >= 10) //1.0s
{
beep = 1; //关闭蜂鸣器
}
if(value2 >= 20) //100ms*20 = 2秒
{
value2 = 0;
dt_shang_guan(); //电梯向上做最后的判断是否还要继续向上
dt_xia_guan(); //电梯向下做最后的判断是否还要继续向下
}
}
}
/*************定时器0初始化程序***************/
void time_init()
{
EA = 1; //开总中断
TMOD = 0X01; //定时器0、工作方式1
ET0 = 1; //开定时器0中断
TR0 = 1; //允许定时器0定时
}
/******************主程序**********************/
void main()
{
P1 = 0x00;
P0 = 0X00; //单片机IO口初始化
time_init(); //定时器初始化
while(1)
{
key(); //按键程序
if(key_can < 20)
{
if(dt_s_x == 0)
{
value2 = 0;
flag_stop = 1;
}
key_with();
}
tiandi_shang_xia(); //当电梯不动时、判断是向上、还是向下
P0 = smg_du[dt_value]; //显示
if(flag_100ms == 1)
{
flag_100ms = 0;
td_dis(); //电梯处理函数
}
}
}
/*************定时器0中断服务程序***************/
void time0_int() interrupt 1
{
static uchar value;
TH0 = 0x3c;
TL0 = 0xb0; // 50ms
value ++;
if(value % 2 == 0)
{
flag_100ms = 1 ;
}
}

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