風速風向傳感器在單片機上的應用

ID:429540 · 發表于 2020-10-30 15:49

/*本風速傳感器采用小型直流有刷電機與三杯式旋轉風杯組裝
  而成，其工作原理為，當環境有水平流動風時，旋轉風杯能夠產生旋轉，并帶動小型電機產生電壓，其電壓與旋轉速度基本成正比。利用此信號電壓，可以對環境風速進行測量。這款風速傳感器采用海洋軍用的高精度測量風速傳感器，與傳統產品先別，具有更高精度;是建筑機械(起重機、履帶吊、門吊、塔吊)、鐵路、港口、碼頭、風力發電、光伏發電、電廠、氣象、索道、環境、溫室、養殖等領域不可缺少的風速檢測裝置。用它可以實現設備風速指示數字化及自動化，是相關設備不可缺少的風速檢測設備。*/

//使用該程序和電路再搭配我們的風速風向傳感器就可以實時顯示風速風向數據

#冠拓電子
#include <stc89c52.h>
#include <lcd.h>
#include <intrins.h>
#define       uchar       unsigned char
#define uint       unsigned int

#define MAIN_Fosc             11059200L       //定義主時鐘, 模擬串口和和延時會自動適應。5~35MHZ  22118400L
//                                                             7    6    5    4       3    2 1 0 Reset Value
//sfr ADC_CONTR = 0xBC;             ADC_POWER SPEED1 SPEED0 ADC_FLAG ADC_START CHS2 CHS1 CHS0 0000,0000       //AD 轉換控制寄存器
#define ADC_OFF()       ADC_CONTR = 0
#define ADC_ON             (1 << 7)
#define ADC_90T             (3 << 5)
#define ADC_180T       (2 << 5)
#define ADC_360T       (1 << 5)
#define ADC_540T       0
#define ADC_FLAG       (1 << 4)       //軟件清0
#define ADC_START       (1 << 3)       //自動清0
#define ADC_CH0             0
#define ADC_CH1             1
#define ADC_CH2             2
#define ADC_CH3             3
#define ADC_CH4             4
#define ADC_CH5             5
#define ADC_CH6             6
#define ADC_CH7             7

//sbit k1 = P2^0;
//sbit buzzer = P3^7;
/************* 本地變量聲明 **************/
int wind_set = 50;
float wind_speed = 0.0;
float wind_ppm = 0.0;
void wind_Value_Conversion();

float FX_Value=0.0;//風向傳感器輸出的模擬電壓值
//int dir_set = 1;
//int dir_set1;                      /*1=N\2=S\3=W\4=E\5=EN\6=ES\7=WN\8=WS*/
unsigned int FX_NUM=0;//AD采集后的數字量
unsigned char disbuff[10]={0}; //顯示字符數組
void FX_Value_Conversion();  //風向處理顯示函數

void Delay1(unsigned int time);  //延時子函數
void DelayUs(unsigned int time);                //延時主程序
uint       adc10_start(uchar channel);       //channel = 0~7                AD轉換

/*void press_k1(void)
{
      if(k1 == 0)
      {
            Delay1(100);
            if(k1 == 0)
            {
                     dir_set += 1;
                     if(dir_set>8)
                     {
                              dir_set = 1;
                     }
            }
      }
}

/*void press_k2()
{
      if(k2 == 0)
      {
            Delay1(100);
            if(k2 == 0)
            {
                     wind_set -= 1;
                     if(wind_set<0)
                     {
                              wind_set = 999;
                     }
            }
      }
}
      */
// void display_set()                                     //按鍵設置顯示
//
//{
//       if(dir_set == 1)                                                 /*1=N\2=S\3=W\4=E\5=EN\6=ES\7=WN\8=WS*/
//                {
//             DisplayString(0x09,0,"set:N ");
//             }
//          else if(dir_set == 2)
//             {
//             DisplayString(0x09,0,"set:S ");
//             }
//       else if(dir_set == 3)
//             {
//       DisplayString(0x09,0,"set:W ");
//             }
//       else if(dir_set == 4)
//             {
//             DisplayString(0x09,0,"set:E ");
//             }
//       else if(dir_set == 5)
//             {
//             DisplayString(0x09,0,"set:EN");
//             }
//       else if(dir_set == 6)
//             {
//             DisplayString(0x09,0,"set:ES");
//             }
//       else if(dir_set == 7)
//             {
//             DisplayString(0x09,0,"set:WN");
//             }
//       else if(dir_set == 8)
//             {
//             DisplayString(0x09,0,"set:WS");
//             }
//          }
/*void display_set()             //按鍵設置顯示
{
      uchar num1, num2, num3;
      num1 = wind_set/100+'0';
      num2 = wind_set%100/10+'0';
      num3 = wind_set%10+'0';
      DisplaySingleChar(0x04,1,num1);
      DisplaySingleChar(0x05,1,num2);
      DisplaySingleChar(0x06,1,num3);
      DisplayString(0x7,1,"km/h");
}       */
//void buzzer_on()
//{
//       if(dir_set==dir_set1)                         /*從1****8取值*/
//                      {
//                               buzzer = 0;
//                      }
//                      else
//                      {
//                               buzzer = 1;
//                      }
//}

void main()
{
      P1ASF = 0x07;                      //12C5A60AD/S2系列模擬輸入(AD)選擇
      ADC_CONTR = ADC_360T | ADC_ON;
      LCDInit();                            //顯示屏初始化
      DisplayString(0x0,0,"  Welcome...  ");
      Delay1(500);
//DisplayString(0x0,0,"Wind Speed");
            //DisplayString(0x0,1,"dir:");
      //Delay1(500);
      WriteCmd(LCD_CLS);
      //DisplayString(0x0,0,"Speed:");
      //DisplayString(0x0,1,"dir:");
            DisplayString(0x0,0," mv");
            //DisplayString(0x0b,0,"set:");
            //DisplayString(0x0,1,"dir:");
      //DisplayString(0x0,1,"Set:");
      while(1)
      {

                     //press_k1();
            //       press_k2();



                     wind_speed = adc10_start(0);
                     wind_Value_Conversion();
                     FX_NUM = adc10_start(1);//P1.1口采集模擬電壓
                  FX_Value_Conversion();
                     //display_set();
                     //buzzer_on();

}
}
void wind_Value_Conversion()       //風速測量顯示函數
{
      uchar num1, num2, num3;
            wind_speed=(wind_speed*5)/1024;
      wind_ppm = 0.027*1000*3.6*wind_speed ;       //公式：風速F=0.027*V（電壓）*3.6  km/h

            num1 = (int)(wind_ppm)/100;       //取整數位并顯示
            num2 = (int)(wind_ppm)%100/10;
            num3 = (int)(wind_ppm)%10;
      DisplaySingleChar(0x09,1,num1+0x30);
      DisplaySingleChar(0x0a,1,num2+0x30);
      DisplaySingleChar(0x0b,1,num3+0x30);
      DisplayString(0x0c,1,"km/h");

}
void FX_Value_Conversion()  //風向處理顯示函數
{
  FX_Value=(FX_NUM*5.0)/1024;//數字量轉換為電壓值顯示，10為ADC，所以除以1024

            //轉換為電壓值字符，單位毫伏mv
      disbuff[0]=(int)(FX_Value*1000)/1000+'0';
      disbuff[1]=(int)(FX_Value*1000)%1000/100+'0';
      disbuff[2]=(int)(FX_Value*1000)%100/10+'0';
      disbuff[3]=(int)(FX_Value*1000)%10+'0';

            //顯示電壓值
      DisplaySingleChar(0x00,0,disbuff[0]);
      DisplaySingleChar(0x01,0,disbuff[1]);
      DisplaySingleChar(0x02,0,disbuff[2]);
      DisplaySingleChar(0x03,0,disbuff[3]);

      if(FX_Value<=0.35) //北風                                                       /*1=N\2=S\3=W\4=E\5=EN\6=ES\7=WN\8=WS*/
      {
DisplayString(0x00,1,"dir:N "); //北風
      //dir_set1 = 1;
      }
      else if(FX_Value>0.35&&FX_Value<=1.05)
      {
DisplayString(0x00,1,"dir:EN");//東北風
      //dir_set1 = 5;
      }
      else if(FX_Value>1.05&&FX_Value<=1.75)
      {
DisplayString(0x00,1,"dir:E ");       //東風
      //dir_set1 = 4;
      }
      else if(FX_Value>1.75&&FX_Value<=2.45)
      {
DisplayString(0x00,1,"dir:ES"); //東南風
      //dir_set1 = 6;
      }
      else if(FX_Value>2.45&&FX_Value<=3.2)
      {
DisplayString(0x00,1,"dir:S "); //南風
      //dir_set1 = 2;
      }
      else if(FX_Value>3.2&&FX_Value<=3.85)
      {
DisplayString(0x00,1,"dir:WS"); //西南風
      //dir_set1 = 8;
      }
            else if(FX_Value>3.85&&FX_Value<=4.6)
      {
DisplayString(0x00,1,"dir:W "); //西風
      //dir_set1 = 3;
      }
      else if(FX_Value>4.6)
      {
DisplayString(0x00,1,"dir:WN"); //西北風
      //dir_set1 = 7;
      }
}
uint       adc10_start(uchar channel)       //channel = 0~7                AD轉換
{
      uint       adc;
      uchar       i;

      ADC_RES = 0;
      ADC_RESL = 0;

      ADC_CONTR = (ADC_CONTR & 0xe0) | ADC_START | channel;

      i = 250;
      do{
            if(ADC_CONTR & ADC_FLAG)
            {
                     ADC_CONTR &= ~ADC_FLAG;
                     adc = (uint)ADC_RES;
                     adc = (adc << 2) | (ADC_RESL & 3);
                     return       adc;
            }
      }while(--i);
      return       1024;
}
//延時函數//
void Delay1(unsigned int time)
{
unsigned int timeCounter = 0;
      for (timeCounter = time;timeCounter > 0 ;timeCounter --)
            DelayUs(255);
}

void DelayUs(unsigned int time)
{
      unsigned int timeCounter = 0;
      for (timeCounter = 0;timeCounter < time;timeCounter ++)
            _nop_();
}