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標題: 超聲波倒車語音報警 [打印本頁]

作者: muxiaolin 時間: 2018-4-25 17:32
標題: 超聲波倒車語音報警

#include "STC12C5A.H"
#include "lcd1602.h"
#include "delay.h"
#include "string.h"
#include "typedef.h"
#include "key.h"
#include "mp3_uart.h"
#include "24c02.h"

sbit BUZZER = P2^0; //蜂鳴器
sbit RLED = P1^0; //紅燈
sbit GLED = P1^1; //綠燈
sbit TX1=P1^2;
sbit RX1=P1^3;
unsigned char OverFlag=0;
unsigned int  Distance=0;
unsigned int  AlarmDistance=20;
unsigned char AutoFlag=0;

uint  Speed=0;
uint  AlarmSpeed=80;
unsigned char  Page=0;
unsigned int  Pulse=0;  //測速脈沖數
sbit INA=P3^4;
extern unsigned char PlayFlag;
void Timer0_Init(void);  //1毫秒@11.0592MHz
void Timer1_Init(void);    //定時器1初始化
void GetDistance(void);    //超聲波測距
void DistanceCheck(void); //測距函數
void UART_Init(void);    //串口初始化
void PageInit(void);
void DataLoad(void);
void PageDisplay(void);
void PlayCheck(void)
{
static unsigned char con=0;
static unsigned char T50MS=0;
static unsigned char TINT=0;
if(KeyVal=='S')
{
  KeyVal=0;
  AutoFlag=(AutoFlag==1)?0:1;
}
if(AutoFlag)
  GLED=0;
else
  GLED=1;
if(AutoFlag)
  con++;

if(con>=80)
{
con=0;
MP3_UART_Send_Cmd(0x41,15);  //速度
if(Speed==0)
{
   MP3_UART_Send_Cmd(0x41,1);  //速度
}
else
{
MP3_UART_Send_Cmd(0x41,Speed/10+1);  //速度
MP3_UART_Send_Cmd(0x41,Speed%10+1);  //速度
}
/*--------------------------------------------------------*/
MP3_UART_Send_Cmd(0x41,14);  //距離
MP3_UART_Send_Cmd(0x41,Distance/100+1);
MP3_UART_Send_Cmd(0x41,12);  //點
MP3_UART_Send_Cmd(0x41,Distance%100/10+1);
MP3_UART_Send_Cmd(0x41,Distance%10+1);
MP3_UART_Send_Cmd(0x41,13);
/*----------------------------------------------------------*/
}
/*----------------------------小于50每10里面播報一次------------------------------------------------*/
if((TINT==0)&&(Distance%10==0)&&(Distance<51)&&(Distance>0))
{
MP3_UART_Send_Cmd(0x41,14);  //距離
MP3_UART_Send_Cmd(0x41,Distance/100+1);
MP3_UART_Send_Cmd(0x41,12);  //點
MP3_UART_Send_Cmd(0x41,Distance%100/10+1);
MP3_UART_Send_Cmd(0x41,Distance%10+1);
MP3_UART_Send_Cmd(0x41,13);
TINT=1;
}
if(TINT>0)
{
  TINT++;
  if(TINT>=30)
TINT=0;
}
/*------------------------距離太近請停車播報---------------------------------------*/
if((Distance<=10)&&(T50MS==0)&&(Distance>0))
{
  MP3_UART_Send_Cmd(0x41,16);
  T50MS=1;
}
if(T50MS>0)
{
  T50MS++;
  if(T50MS>=20)
T50MS=0;
}
if((Distance<AlarmDistance)&&(Distance>0))
{
  BUZZER=0;
  RLED=0;
}
else
{
  BUZZER=1;
  RLED=1;
}
}

void main(void)
{
  Delay_1ms(500);
  LCD_Init(); //LCD顯示初始化
  PageInit(); //頁面顯示初始化
  Timer0_Init(); //計數器0初始化
  Timer1_Init(); //定時器1初始化
  DataLoad(); //報警數據讀出
  UART_Init();    //串口初始化
  MP3_UART_SetVic(23);
  Delay_1ms(200);
  MP3_UART_SetVic(23);
  while(1)
  {
  PageDisplay(); //頁面顯示
  PlayCheck();
  GetDistance();
  Delay_1ms(50); //延時50毫秒
  }
}

void UART_Server() interrupt 4 //串口接收中斷
{
unsigned char ch=0;
EA=0;
if(RI)
{
ch = SBUF;
if(ch=='S'||ch=='T'||ch=='P')
PlayFlag=0;
RI = 0;
}
EA=1;
}

void Timer0_ISR(void) interrupt 1 //1毫秒@11.0592MHz
{
static unsigned char sta=0;
static unsigned int  T1MS=0;
static unsigned char KS=0;
TL0 = 0xCD;  //設置定時初值
TH0 = 0xD4;  //設置定時初值
T1MS++;
if(T1MS>=1000)
{
  T1MS=0;
  Speed=Pulse/2;
  Pulse=0;
}
/*--------------------------------------------*/
KS++;
if(KS>=20)
{
  KS=0;
  KEY_Scan();
}
/*---------------------------------------------*/
switch(sta)
{
/*------------------------------------------*/
  case 0:
{
   if(INA==0)
   sta=1;
else
   sta=0;
}break;
/*------------------------------------------*/
  case 1:
{
   if(INA==0)
{
   sta=2;
   Pulse++;
}
else
   sta=0;
}break;
/*------------------------------------------*/
  case 2:
{
   if(INA==0)
   sta=2;
else
   sta=0;
}break;
  default:sta=0;break;
}
/*----------------------------------------------*/
}

void Timer0_Init(void)  //1毫秒@11.0592MHz
{
AUXR |= 0x80;  //定時器時鐘1T模式
TMOD &= 0xF0;  //設置定時器模式
TMOD |= 0x01;  //設置定時器模式
TL0 = 0xCD;  //設置定時初值
TH0 = 0xD4;  //設置定時初值
TF0 = 0;  //清除TF0標志
TR0 = 1;  //定時器0開始計時
ET0=1;
EA=1;
}

void UART_Init(void)
{
PCON &= 0x7F;  //波特率不倍速
SCON = 0x50;  //8位數據,可變波特率
AUXR |= 0x04;  //獨立波特率發生器時鐘為Fosc,即1T
BRT = 0xDC;  //設定獨立波特率發生器重裝值
AUXR |= 0x01;  //串口1選擇獨立波特率發生器為波特率發生器
AUXR |= 0x10;  //啟動獨立波特率發生器
ES = 1;
EA=1;
}

void Timer1_Init(void)
{
TMOD = (TMOD&0x0f)| 0x10;
TL1 = 0x00;  //設定定時初值
TH1 = 0x00;  //設定定時器重裝值
ET1 = 1;  //禁止定時器0中斷
TR1 = 0;  //啟動定時器0
EA=1;
}

void DistanceCheck(void)
{
unsigned int retry=0;
unsigned int time=0;
float S=0;
TR1 = 0;
OverFlag=0;
TX1 = 1;
delay_1us(3);
TX1 = 0;
while(!RX1);
TH1=0;
TL1=0;
TR1 = 1;
retry=0;
while((RX1==1)&&(OverFlag==0)&&(retry<50000))
{
   retry++;
delay_1us(1);
}
TR1 = 0;
/*--------------計算---------------------*/
time=TH1*256+TL1;
TH1=0;
TL1=0;
if(OverFlag==0)    //沒有溢出
{
      S=(time*1.7)/100;    //算出來是CM
  if(S>300)
  {
S=0;
  }
}
else
{
   S=0;
}
Distance=S;
}

void GetDistance(void)
{
  static unsigned char con=0;
  con++;
  if(con>20)
  {
con=0;
DistanceCheck();
  }
}

void DataLoad(void)
{
U16_Read(&AlarmSpeed,0);
Delay_1ms(50);
U16_Read(&AlarmDistance,10);
}

void PageInit(void)
{
LCD_Clr();
switch(Page)
{
/*---------------------------------------------*/
  case 0:  //速度和距離同時顯示
{
   LCD_DispStr( 0,"Speed:    cm/s");
LCD_DispStr(16,"Dis:       cm");
}break;
/*---------------------------------------------*/
  case 1: //顯示距離  和設置距離
{
      LCD_DispStr( 0,"Dis:    cm");
LCD_DispStr(16,"Set:    cm");
}break;
/*---------------------------------------------*/
  case 2: //顯示速度和設置速度
{
   LCD_DispStr( 0,"Speed:    cm/s");
LCD_DispStr(16,"Alarm:    cm/s");
}break;
/*---------------------------------------------*/
  default:break;
}
}

void PageDisplay(void)
{
/*---------------頁面切換----------------*/
if(KeyVal=='E')
{
  KeyVal=0;
  Page++;
  if(Page>2)
Page=0;
  PageInit();
}
switch(Page)
{
/*---------------------------------------------*/
  case 0://速度和距離同時顯示
{
   LCD_DispU16( 6,Speed);
if(Distance>0)
LCD_DispU16(22,Distance);
   else
   LCD_DispStr(22,"-----");
}break;
/*---------------------------------------------*/
  case 1: //顯示距離  和設置距離
{
if(Distance>0)
LCD_DispU16( 6,Distance);
   else
   LCD_DispStr(6,"-----");

      LCD_DispU16(22,AlarmDistance);
if(KeyVal=='+')
{
KeyVal=0;
AlarmDistance++;
U16_Save(&AlarmDistance,10);
}
if(KeyVal=='-')
{
KeyVal=0;
if(AlarmDistance>2)
AlarmDistance--;
U16_Save(&AlarmDistance,10);
}

}break;
/*---------------------------------------------*/
  case 2: //顯示速度和設置速度
{
         LCD_DispU16( 6,Speed);
   LCD_DispU16(22,AlarmSpeed);
if(KeyVal=='+')
{
   KeyVal=0;
   AlarmSpeed++;
   U16_Save(&AlarmSpeed,0);
}
if(KeyVal=='-')
{
   KeyVal=0;
   if(AlarmSpeed>2)
   AlarmSpeed--;
      U16_Save(&AlarmSpeed,0);
}
}break;
/*---------------------------------------------*/
  default:
{
   Page=0;
PageInit();
}break;
}
}

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