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基于單片機(jī)的酒精濃度測(cè)試儀的設(shè)計(jì)

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gagalonghun

發(fā)布時(shí)間: 2019-6-12 15:02

正文摘要:

設(shè)計(jì)的是一種以酒精濃度傳感器、AT89C51單片機(jī)和A/D轉(zhuǎn)換器為主的，檢測(cè)駕駛員呼出氣體的酒精濃度的，而且還帶有聲光報(bào)警功能的酒精濃度檢測(cè)儀。這種檢測(cè)儀不僅可以檢測(cè)出空氣環(huán)境中酒精濃度值，還可以由不同的環(huán)境來(lái) ...

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ID:782510 發(fā)表于 2020-12-8 23:43

有仿真圖嗎

ID:659880 發(fā)表于 2020-6-15 10:22

這個(gè)原理圖不清晰呀，還有beep的端口是干啥用的呀

ID:553887 發(fā)表于 2019-6-20 22:14

gagalonghun 發(fā)表于 2019-6-18 15:18
是這個(gè)，這個(gè)是正確的
#include
#include

樓主負(fù)責(zé)又細(xì)心

ID:519003 發(fā)表于 2019-6-18 15:18

溫柔的男人發(fā)表于 2019-6-12 22:11
怎么改呢

是這個(gè)，這個(gè)是正確的
#include <reg51.h>
#include <intrins.h>
#include <stdio.h>
#define uint unsigned int
#define uchar unsigned char
/**********************定義全局變量***************/
//unsigned char dat=0x00 ;  //AD值
unsigned char count = 0x00;  //定時(shí)器計(jì)數(shù)
unsigned char channel; //通道變量
//ADC0832的引腳
sbit ADCS =P1^2;  //ADC0832 chip seclect
sbit ADDI =P1^1;  //ADC0832 k in
sbit ADDO =P1^1;  //ADC0832 k out
sbit ADCLK =P1^0;  //ADC0832 clock signal
unsigned char dispbuf[3];
uint temp;
uint alc;//酒精濃度
uchar dat; //獲取ADC轉(zhuǎn)換回來(lái)的值
uchar *aa="M=T.TTmg/L";
uchar *cc="alarm";
uchar *dd=" ";
uint sheding=60;
uchar bb[16]={'A','l','c','o','h','o','l','=',' ','.',' ',' ','m','g','/','L'};
sbit RS = P2^0; //定義端口
sbit RW = P2^1;
sbit EN = P2^2;
sbit beep=P3^7;
sbit k1=P1^3;//+鍵
sbit k2=P1^4;//-鍵
#define RS_CLR RS=0
#define RS_SET RS=1
#define RW_CLR RW=0
#define RW_SET RW=1
#define EN_CLR EN=0
#define EN_SET EN=1
void DelayUs2x(unsigned char t);
void DelayMs(unsigned char t);
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s);
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data);
void init();
void write_com(unsigned char com);
void write_data(unsigned char date);
void DelayUs2x(unsigned char t)
{
while(--t);
}
void DelayMs(unsigned char t)
{

while(t--)
{
//大致延時(shí)1mS
DelayUs2x(245);
   DelayUs2x(245);
}
}
/*********************************lcd1602各子函數(shù)**************************************/
void write_com(unsigned char com) //寫(xiě)命令
{
RS_CLR;
RW_CLR;
P0=com;
DelayMs(5);
EN_SET;
DelayMs(5);
EN_CLR;
}
void write_data(unsigned char date)    //寫(xiě)一個(gè)字符
{
RS_SET;
RW_CLR;
P0=date;
DelayMs(5);
EN_SET;
DelayMs(5);
EN_CLR;
}
void initlcd() //初始化
{
write_com(0x38);
write_com(0x0c);
write_com(0x06);
write_com(0x01);
}
/*------------------------------------------------
  寫(xiě)入字符串函數(shù)
------------------------------------------------*/
void LCD_Write_String(unsigned char x,unsigned char y,unsigned char *s)
{
if (y == 0)
{
   write_com(0x80 + x);
}
else
{
write_com(0xC0 + x);
}
while (*s)
{
write_data( *s);
s ++;
}
}
/*------------------------------------------------
  寫(xiě)入字符函數(shù)
------------------------------------------------*/
void LCD_Write_Char(unsigned char x,unsigned char y,unsigned char Data)
{
if (y == 0)
{
write_com(0x80 + x);
}
else
{
write_com(0xC0 + x);
}
write_data(Data);
}
/****************************************************************************
函數(shù)功能:AD轉(zhuǎn)換子程序
入口參數(shù):CH
出口參數(shù):dat
****************************************************************************/
//采集并返回
unsigned char Adc0832(unsigned char channel) //AD轉(zhuǎn)換，返回結(jié)果
{
uchar i=0;
uchar j;
uchar dat=0;
uchar ndat=0;
if(channel==0)channel=2;
if(channel==1)channel=3;
ADDI=1;
_nop_();
_nop_();
ADCS=0;//拉低CS端
_nop_();
_nop_();
ADCLK=1;//拉高CLK端
_nop_();
_nop_();
ADCLK=0;//拉低CLK端,形成下降沿1
_nop_();
_nop_();
ADCLK=1;//拉高CLK端
ADDI=channel&0x1;
_nop_();
_nop_();
ADCLK=0;//拉低CLK端,形成下降沿2
_nop_();
_nop_();
ADCLK=1;//拉高CLK端
ADDI=(channel>>1)&0x1;
_nop_();
_nop_();
ADCLK=0;//拉低CLK端,形成下降沿3
ADDI=1;//控制命令結(jié)束
_nop_();
_nop_();
dat=0;
for(i=0;i<8;i++)
{
dat|=ADDO;//收數(shù)據(jù)
ADCLK=1;
_nop_();
_nop_();
ADCLK=0;//形成一次時(shí)鐘脈沖
_nop_();
_nop_();
dat<<=1;
if(i==7)dat|=ADDO;
}
for(i=0;i<8;i++)
{
j=0;
j=j|ADDO;//收數(shù)據(jù)
ADCLK=1;
_nop_();
_nop_();
ADCLK=0;//形成一次時(shí)鐘脈沖
_nop_();
_nop_();
j=j<<7;
ndat=ndat|j;
if(i<7)ndat>>=1;
}
ADCS=1;//拉低CS端
ADCLK=0;//拉低CLK端
ADDO=1;//拉高數(shù)據(jù)端,回到初始狀態(tài)
dat<<=8;
dat|=ndat;
return(dat);//return ad k
}
/****************************************************************************
函數(shù)功能:定時(shí)器中斷延時(shí)程序這一段的作用時(shí)隔一段時(shí)間抽樣一次否側(cè)顯示的最后一位會(huì)不穩(wěn)定
入口參數(shù):
出口參數(shù):
****************************************************************************/
void timer0(void) interrupt 1
{
TMOD = 0x01;
TH0 = 0x00;
TL0 = 0x00;
IE = 0x82;
TR0 = 01;
count++;
  if (count == 0x0A)
  {
count = 0x00;
dat= Adc0832(channel);
  }
}
/*void format_data(uint dat)
{
  uint change_dat=dat;
  uchar ptr[3];
  change_dat=(change_dat<<8)+(change_dat<<7)+(change_dat<<6)+(change_dat<<5)+(change_dat<<4)+(change_dat<<2);//乘500
  change_dat=change_dat>>8;//除以256
  ptr[0]=change_dat/100; //得到個(gè)位數(shù)字
  ptr[1]=(change_dat-(100*ptr[0]))/10; //得到十分位數(shù)字
  ptr[2]=change_dat-(100*ptr[0])-(10*ptr[1]); //得到百分位數(shù)字
}*/
void keyscan()
{

if(!k1)
{
  DelayMs(5);
   if(!k1)
   {
while(!k1);
sheding+=5;
LCD_Write_Char(2,1,sheding/100+'0');
LCD_Write_Char(4,1,sheding%100/10+'0');
LCD_Write_Char(5,1,sheding%10+'0');
   }
   }
if(!k2)
   {
   DelayMs(5);
   if(!k2)
   {
while(!k2);
sheding-=5;
LCD_Write_Char(2,1,sheding/100+'0');
LCD_Write_Char(4,1,sheding%100/10+'0');
LCD_Write_Char(5,1,sheding%10+'0');
   }
}

}
/****************************************
函數(shù)功能:主程序
入口參數(shù):
出口參數(shù):

****************************************/
void main(void)
{
  uchar i;
  P2=0xff; //端口初始化
  P0=0xff;
  P3=0xff;
  channel=0x00;  //channel=0
  TMOD = 0x01;
  TH0 = 0x00;
  TL0 = 0x00;
  IE = 0x82;
  TR0 = 01;
  initlcd();
  LCD_Write_String(0,0,bb);
  LCD_Write_String(0,1,aa);
  //LCD_Write_String(11,1,cc);
  LCD_Write_Char(2,1,sheding/100+'0');
  LCD_Write_Char(4,1,sheding%100/10+'0');
  LCD_Write_Char(5,1,sheding%10+'0');
  while(1)
  {
temp=dat*1.0/255*500;  //電壓值轉(zhuǎn)換，5V做為參考電壓，分成256份。

if(temp<187)
{

   alc=100*(temp-8)/895;
}
else
{
alc=100*(temp-133)/272;
}
   dispbuf[0]=alc%10+'0';    //個(gè)位
   dispbuf[1]=alc/10%10+'0'; //十位
   dispbuf[2]=alc/100%10+'0'; //百位

   //dispbuf[0]=temp%10+'0';    //個(gè)位
   //dispbuf[1]=temp/10%10+'0'; //十位
   //dispbuf[2]=temp/100%10+'0'; //百位

   LCD_Write_Char(8,0,dispbuf[2]);
   LCD_Write_Char(10,0,dispbuf[1]);
   LCD_Write_Char(11,0,dispbuf[0]);
   keyscan();
   if(alc>sheding)
   {
//beep=0;
for(i=0;i<10;i--)
{
   beep=0;
   DelayMs(1);
   beep=1;
}

LCD_Write_String(11,1,cc);
   }
   else
   {
LCD_Write_String(11,1,dd);
   }
  }
}

ID:519003 發(fā)表于 2019-6-18 15:17

溫柔的男人發(fā)表于 2019-6-12 22:11
怎么改呢

錯(cuò)誤較多，我發(fā)源碼給你
#include<reg51.h>
#include"delay.h"
#include"lcd602.h"
#include"ds18b20.h"
//**************端口定義*******************
sbit LED = P1^0;
sbit k1 = P1^4;
sbit k2 = P1^5;
sbit k3 = P1^6;
//**************數(shù)組定義*******************
uchar code tab2[]={"Temp:    "}; //5
uchar code tab3[]={" H    "}; //3
uchar code tab4[]={"L    "}; //8
//**************變量定義*******************
int temp1 = 400; //上限
int temp3 = 100;    //下限
bit flag = 0;    //上下限選擇標(biāo)志
int temp4; //當(dāng)上限減到負(fù)數(shù)時(shí)
uchar temp5 = 0;
/*******************按鍵********************/
void key()
{
   if(flag == 0) //上限
   {
   write_zifu(2,0,'*');
   write_zifu(2,8,' ');
      if(k1 == 0)
   {
      delayxms(5);
while(k1 == 0);
temp1 += 10;
   }

   if(k2 == 0)
   {
      delayxms(5);
while(k2 == 0);
temp1 -= 10;
   }
   }

   if(flag == 1) //下限
   {
   write_zifu(2,0,' ');
   write_zifu(2,8,'*');
      if(k1 == 0)
   {
      delayxms(5);
while(k1 == 0);
temp3 += 10;
   }

   if(k2 == 0)
   {
      delayxms(5);
while(k2 == 0);
temp3 -= 10;
   }
   }


   if(k3 == 0) //上下限選擇標(biāo)志
   {
      delayxms(5);
while(k3 == 0);
flag = ~flag;
   }
}
/*******************定時(shí)器T1初始化********************/
void T1_init()
{
   TMOD = TMOD | 0x10;          //設(shè)T1為方式1
   TH1 = (65535-20000)/256;    //計(jì)數(shù)20000個(gè)
   TL1 = (65535-20000)%256;
   EA = 1;                      //開(kāi)啟總中斷
   ET1 = 1;                      //允許T1中斷
   TR1 = 1;                      //啟動(dòng)
}
/*******************主函數(shù)********************/
void main()
{
       chushihua();//lcd1602初始化
   write_string(1,0,tab2);
   write_string(2,0,tab3);
   write_string(2,9,tab4);
   T1_init();
   while(1)
   {
   key();
   ds1820disp();
   /*溫度上限*/
      if(temp1 < 0)
   {
   write_zifu(2,2,'-');
   temp4 = temp1;
   temp4 = ~temp4;
   temp4 += 1;
         write_num3(2,3,temp4);
   write_zifu(2,7,' ');
   }
   else
   {
         write_zifu(2,2,'+');
   if(temp1>=1000)
   {
      write_num4(2,3,temp1);
   }
   else
   {
      write_num3(2,3,temp1);
   }
   }

   /*溫度下限*/
      if(temp3 < 0)
   {
   write_zifu(2,10,'-');
         write_num3(2,11,-(temp3));
   write_zifu(2,15,' ');
   }
   else
   {
         write_zifu(2,10,'+');
   if(temp3>=1000)
   {write_num4(2,11,temp3);}
   else
   {write_num3(2,11,temp3);}
   }

   /*報(bào)警*/
   if(flag_temp == 1) //溫度小于零
   {
      if((-t)>temp1 || (-t)<temp3) {LED = 0;}
      else {LED = 1;}
   }
   else //溫度大于零
   {
      if(t>temp1 || t<temp3) {LED = 0;}
      else {LED = 1;}
   }
   }
}
/**************************定時(shí)器T1中斷服務(wù)函數(shù)************************************/
void T1_time() interrupt 3
{
   TH1 = (65535-20000)/256;    //計(jì)數(shù)20000個(gè)
   TL1 = (65535-20000)%256;
   temp5 += 1;
   if(temp5 >= 25)
   {
      temp5 = 0;
   TR1 = 0;
   ReadTemperature();
   TR1 = 1;
   }
}

ID:519003 發(fā)表于 2019-6-18 15:14

溫柔的男人發(fā)表于 2019-6-12 22:11
怎么改呢

第15行的unsigned chardispbuf[3];改為unsigned char dispbuf[3];//char后打一個(gè)空格就行了

ID:553887 發(fā)表于 2019-6-12 22:11

怎么改呢

ID:553887 發(fā)表于 2019-6-12 22:10

MAIN.C(16): error C129: missing ';' before 'temp'

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