PID温度控制系统

ID:311868 · 发表于 2018-5-7 21:00

#include "ioconfig.h"
#include "1602.h"
#include "USART.h"
#include "18B20.h"
#include "stdio.h"
#include "pwm.h"
#include "pid.h"
#include "keypad.h"
#include "delay12.h"

uchar dis_buf[8];
uchar temp[]="";
bit welcome_flag=0;

void LCD_Numpwm(uchar x,uchar y,uint dataw)
{
Num[0]=dataw%1000/100+'0';
Num[1]=dataw%100/10+'0';
Num[2]=dataw%10+'0';
Num[3]=' ';
Num[4]='\0';
LCD_Str(x,y,Num);
}
void compare_temper()
{
  unsigned char i;

  if(set_temper>temper)
{
if(set_temper-temper>50)
   {
   pwm_set(100);
   LCD_Numpwm(4,1,100);
   }
else
{
   for(i=0;i<10;i++)
   {
      rin=Temp_Change();
      rout = PIDCalc ( &spid,rin );
   }

      if(rout>=100) rout=100;
      if(rout<=10)  rout=10;
      pwm_set(rout);
   }
   LCD_Str(12,1,"run!");
}
  else if(set_temper<=temper)
{

   pwm_set(0);
   LCD_Str(12,1,"stop");
}
}

void welcome_menu(void)
{
   LCD_Write(CMD,0X01);
   LCD_Str(0,0," Welcome!");
   LCD_Str(0,1," enter to menu");
   while(!welcome_flag)
   {
         if(keyscan()=='9')
            {
   LCD_Write(CMD,0X01);
            LCD_Str(0,0,"T:    T0:");
            LCD_Str(0,1,"Pwm:  %");
   welcome_flag=1;
            }
   }
   pwm_set(0);    //  set_temper=500;    pwm_set(50);
         // LCD_Num(10,0,set_temper);
}
void cleanbuf(void)
{
unsigned char i;
for(i=0;i<16;i++)
{
temp[i]='\0';
}
}
void Sys_Init(void)
{
LCD_Init();
UsartInit();
Timer0Init();
PIDBEGIN();

}

void main(void)
   {
   uchar i=0;
   bit shezhi=0;
   Sys_Init();
   welcome_menu();
   while(1)
   {
         temp[0]=keyscan();


   if(temp[0]=='9')
      {
   cleanbuf();
   shezhi=1;
   LCD_Write(CMD,0X01);
         LCD_Str(0,0,"Put in set_T:");
   LCD_Char(9,1,0xdf);
   LCD_Char(10,1,'C');

      while(shezhi)
   {
      delay_ms(50);
      temp[i]=keyscan();
   if(temp[i]!=0xf0)
      {
   LCD_Char(6+i,1,temp[i]);
   i++;
   if(i>=2)
   {
      i=0;
   shezhi=0;
   set_temper=((temp[0]-0x30)*10+(temp[1]-0x30))*10;
   delay_ms(100);
   LCD_Write(CMD,0X01);
                     LCD_Str(0,0,"T:    T0:");
                     LCD_Str(0,1,"Pwm:  %");
   LCD_Num(10,0,set_temper);
//    break;
   }
}
      }
      }
   temper=Temp_Change();
   compare_temper();
   }
  }

ID:311868 · 发表于 2018-5-7 21:03

PCB原理图

ID:329417 · 发表于 2018-5-16 16:46

这个是温度控制MA

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