任务

硬件设计部分主要包括硬件选型及其配置，mq-2烟雾传感器，温湿度传感器dht11，lcd显示屏，红外热释传感器，声音报警器。
主要要求： dht11，红外传感器，了解其工作原理
（2）掌握STM32/51单片机基本的库函数，学会基本的C编程语言
（3）设计动物体温识别算法，能准确识别热源点
（4）能通过液晶显示器显示测到的温度和湿度
（5）可以通过按键来设置需要的值
（6）能通过单片机控制系统的运行，并在触发烟雾传感器，红外传感器时报警
（7）设计硬件图纸和相应的源程序
核心技术指标：
（1）温度未达到设定值，动机工作
（2）湿度未达到设定值时，动机工作
（3）有动物闯入别的区域时，触发报警蜂鸣器
（4）发声火灾时，烟雾报警器进行报警，触发蜂鸣器
本研究的目的是开发一种能实时、准确地显示温湿度值、可以进行动物走错区报警，以及火灾报警室内动物园温湿度控制系统。通过采集温湿度值，可以准确判断标准值与当前值的差值，并能及时报警，并通过外界采取相应的方案。温度和湿度可调节到所需状态，可提高系统的方便性，并可在上述目的的基础上节约能源。

实物

原理图

源程序

主函数main.c

/******************************************************************************** 文件名称：STM32温湿度控制体温检测烟雾报警系统* 实验目的：1.* 2.* 程序说明：完整程序Q:2772272579;@: itworkstation@hotmail.com* 日期版本：51，STM32功能可定制。*******************************************************************************//* Includes ------------------------------------------------------------------*/
#include "main.h"  /* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*//*** @说明     主函数* @参数     None * @返回值   None*/
int main(void)
{Proc_Init();LED_Init();OLED_Init(); LCD_Display();ADC1_Init(); if(DHT11_Init() == 1){OLED_Showx8_y16(0,3,(unsigned char*)"  DHT11 ERROR!  ");          }else{  OLED_Showx8_y16(0,3,(unsigned char*)" DHT11 SUCCESS! ");}BEEP_Init(); BEEP_Control(ON);  LED_Control(ON);Delay_ms(1000);BEEP_Control(OFF);  LED_Control(OFF);KEY_Init();RELAY_Init();SMBus_Init();TIM4_Init();   while(1){        Key_Proc();         if(TIM4_FlagStatus.Flag_200MS == SET){TIM4_FlagStatus.Flag_200MS = RESET;LED_Control(REVERSE);Proc_200Ms();     }Check_Sensior();  LCD_Display();}
}

处理逻辑

#include "proc.h"
LCD_ENUM LCD_Menu = LCD_DEFAULT,LCD_Menu_Last = LCD_DEFAULT;
LCD_DEF_MENU LCD_DefShow;
LCD_SET_MENU LCD_SetShow;
#define LCD_BUFFMAX 21
char LCD_Buff[LCD_BUFFMAX];
void LCD_Display(void)
{if(LCD_Menu_Last != LCD_Menu){LCD_Menu_Last = LCD_Menu;OLED_CLS();//清屏} if(LCD_Menu == LCD_DEFAULT) {memset(LCD_Buff,'0',LCD_BUFFMAX); sprintf(LCD_Buff,(char *)"    检测界面    ");OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);         memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)" 温度: %d℃ ",LCD_DefShow.DHT11_Tempe);OLED_Showx8_y16(0,1,(unsigned char*)LCD_Buff);           memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)" 湿度: %d%%RH ",LCD_DefShow.DHT11_Humi); // RH就是相对湿度,(Relative Humidity) %转义->%OLED_Showx8_y16(0,2,(unsigned char*)LCD_Buff);   memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)" 体温: %3.1f℃  ",LCD_DefShow.GY906_Temp); OLED_Showx8_y16(0,3,(unsigned char*)LCD_Buff);   }else if(LCD_Menu == LCD_Tset02){memset(LCD_Buff,'0',LCD_BUFFMAX); sprintf(LCD_Buff,(char *)"    检测界面    ");OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);            memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)" 烟雾: %dPPM ",LCD_DefShow.Yanwu); OLED_Showx8_y16(0,1,(unsigned char*)LCD_Buff);          memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)" 火焰: %.2fV ",LCD_DefShow.Adc_Huoyan); // OLED_Showx8_y16(0,2,(unsigned char*)LCD_Buff);  memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)" 体温: %3.1f℃  ",LCD_DefShow.GY906_Temp); OLED_Showx8_y16(0,3,(unsigned char*)LCD_Buff);   }else if(LCD_Menu == LCD_SETTING){memset(LCD_Buff,'0',LCD_BUFFMAX); sprintf(LCD_Buff,(char *)"    设置界面    ");OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);           memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"温度L: %d℃ ",LCD_SetShow.DHT11_Tempe_Set_L);OLED_Showx8_y16(1,1,(unsigned char*)LCD_Buff);     memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"温度H: %d℃ ",LCD_SetShow.DHT11_Tempe_Set_H);OLED_Showx8_y16(1,2,(unsigned char*)LCD_Buff); memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"湿度L: %d%%RH ",LCD_SetShow.DHT11_Humi_Set_L); OLED_Showx8_y16(1,3,(unsigned char*)LCD_Buff);if(LCD_SetShow.Now_SetLine > 1)OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine-1,(unsigned char*)" ");//LCD_SetShow.Now_SetLineOLED_Showx8_y16(0,LCD_SetShow.Now_SetLine,(unsigned char*)"*");//LCD_SetShow.Now_SetLine}else if(LCD_Menu == LCD_SETTING02){memset(LCD_Buff,'0',LCD_BUFFMAX); sprintf(LCD_Buff,(char *)"    设置界面    ");OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);           memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"湿度H: %d%%RH ",LCD_SetShow.DHT11_Humi_Set_H); OLED_Showx8_y16(1,1,(unsigned char*)LCD_Buff);  memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"体温L: %3.1f℃  ",LCD_SetShow.GY906_Temp_Set_L); OLED_Showx8_y16(1,2,(unsigned char*)LCD_Buff); memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"体温H: %3.1f℃  ",LCD_SetShow.GY906_Temp_Set_H); OLED_Showx8_y16(1,3,(unsigned char*)LCD_Buff);  if(LCD_SetShow.Now_SetLine > 1)OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine-1,(unsigned char*)" ");//LCD_SetShow.Now_SetLineOLED_Showx8_y16(0,LCD_SetShow.Now_SetLine,(unsigned char*)"*");//LCD_SetShow.Now_SetLine}else if(LCD_Menu == LCD_SETTING03) {memset(LCD_Buff,'0',LCD_BUFFMAX); sprintf(LCD_Buff,(char *)"    设置界面    ");OLED_Showx8_y16(0,0,(unsigned char*)LCD_Buff);           memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"烟雾: %dPPM ",LCD_SetShow.Yanwu_Set); OLED_Showx8_y16(1,2,(unsigned char*)LCD_Buff);           memset(LCD_Buff,'0',LCD_BUFFMAX);sprintf(LCD_Buff,(char *)"火焰: %.2fV ",LCD_SetShow.Huoyan_Set); //    OLED_Showx8_y16(1,3,(unsigned char*)LCD_Buff);      if(LCD_SetShow.Now_SetLine > 2)OLED_Showx8_y16(0,LCD_SetShow.Now_SetLine-1,(unsigned char*)" ");//LCD_SetShow.Now_SetLineOLED_Showx8_y16(0,LCD_SetShow.Now_SetLine,(unsigned char*)"*");//LCD_SetShow.Now_SetLine}
}
STRUCT_NVICPriority NVICPriority_Structure;
void Proc_Init(void)
{ NVICPriority_Structure.Tim4 = 4;  LCD_SetShow.DHT11_Tempe_Set_L=15; LCD_SetShow.DHT11_Tempe_Set_H=23;  LCD_SetShow.DHT11_Humi_Set_L = 60;LCD_SetShow.DHT11_Humi_Set_H = 80;LCD_SetShow.GY906_Temp_Set_L = 20;LCD_SetShow.GY906_Temp_Set_H = 30; LCD_SetShow.Huoyan_Set = 1.0;LCD_SetShow.Yanwu_Set = 200;
}extern STRUCT_DHT11 DHT11_Structure;
extern __IO uint16_t ADCConvertedValue[ADC_BUFFMAX];
void Proc_200Ms(void)
{if(DHT11_Read_Data() != 0){LCD_DefShow.DHT11_Humi = (u8)DHT11_Structure.Humi;LCD_DefShow.DHT11_Tempe = (u8)DHT11_Structure.Tempe;}LCD_DefShow.GY906_Temp=SMBus_ReadTemp();LCD_DefShow.Adc_Yanwu = (float)(ADCConvertedValue[0] * 3.3 / 0xfff);  LCD_DefShow.Adc_Yanwu-=0.138;  //自减初值if(LCD_DefShow.Adc_Yanwu <0)LCD_DefShow.Adc_Yanwu=0;LCD_DefShow.Yanwu = (u16)((LCD_DefShow.Adc_Yanwu*100) * 36.36);  //0.14 - 0.7 ；0-2000PPM  均分比列LCD_DefShow.Adc_Huoyan = (float)(ADCConvertedValue[1] * 3.3 / 0xfff);  }
void RELAY_Init(void)
{GPIO_InitTypeDef GPIO_InitStructure;/* GPIOx clock enable */RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6|GPIO_Pin_7;   //LED_REDGPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);GPIO_SetBits(GPIOB,GPIO_Pin_6);GPIO_SetBits(GPIOB,GPIO_Pin_7);
}
void RELAY_Control(u8 choice,ENUM_STATE NewState)
{if(NewState == ON){if(choice == 1)GPIO_ResetBits(GPIOB,GPIO_Pin_6);elseGPIO_ResetBits(GPIOB,GPIO_Pin_7);}else  if(NewState == OFF){if(choice == 1)GPIO_SetBits(GPIOB,GPIO_Pin_6);elseGPIO_SetBits(GPIOB,GPIO_Pin_7);}
}
void BEEP_Init(void)
{GPIO_InitTypeDef GPIO_InitStructure;/* GPIOx clock enable */RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;   //LED_REDGPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOB, &GPIO_InitStructure);RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12 | GPIO_Pin_15;   //BEEPGPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_OD;  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;GPIO_Init(GPIOA, &GPIO_InitStructure);GPIO_SetBits(GPIOA,GPIO_Pin_12);GPIO_SetBits(GPIOB,GPIO_Pin_9);
}
uint8_t BEEP_BUFF = 0x01;
void BEEP_Control(ENUM_STATE NewState)
{if(NewState == ON){BEEP_BUFF = 0x00;GPIO_ResetBits(GPIOA,GPIO_Pin_12);GPIO_ResetBits(GPIOB,GPIO_Pin_9);}else  if(NewState == OFF){BEEP_BUFF = 0x01;GPIO_SetBits(GPIOA,GPIO_Pin_12);GPIO_SetBits(GPIOB,GPIO_Pin_9);}else     //reverse {if(BEEP_BUFF == 0x01)    //  currunt bit status is 1?--off{BEEP_BUFF = 0x00;GPIO_ResetBits(GPIOA,GPIO_Pin_12);GPIO_ResetBits(GPIOB,GPIO_Pin_9);}else{BEEP_BUFF = 0x01;GPIO_SetBits(GPIOA,GPIO_Pin_12);GPIO_SetBits(GPIOB,GPIO_Pin_9);}}
}
extern STRUCT_KEY KEY_Structure;
void Key_Proc(void)
{if(KEY_Structure.TouchKey != 0xff){switch(KEY_Structure.TouchKey){case 1:if(KEY_Structure.IS_ShortTouch == TRUE){if(LCD_Menu == LCD_DEFAULT) {LCD_Menu = LCD_Tset02;}else{LCD_Menu = LCD_DEFAULT; LCD_SetShow.Now_SetLine = 0;}}break;case 2:if(KEY_Structure.IS_ShortTouch == TRUE){if(LCD_Menu != LCD_SETTING && LCD_Menu != LCD_SETTING02 && LCD_Menu != LCD_SETTING03)  LCD_Menu = LCD_SETTING;if(LCD_Menu == LCD_SETTING){LCD_SetShow.Now_SetLine++;    //u8 LCD_SetShow.Now_SetLine=0;if(LCD_SetShow.Now_SetLine > 3){LCD_SetShow.Now_SetLine = 0;LCD_Menu = LCD_SETTING02;        }}if(LCD_Menu==LCD_SETTING02){LCD_SetShow.Now_SetLine++;  //u8 LCD_SetShow.Now_SetLine=0;if(LCD_SetShow.Now_SetLine > 3){LCD_SetShow.Now_SetLine = 1;LCD_Menu = LCD_SETTING03;        }}        if(LCD_Menu==LCD_SETTING03){LCD_SetShow.Now_SetLine++;  //u8 LCD_SetShow.Now_SetLine=0;if(LCD_SetShow.Now_SetLine > 3){LCD_SetShow.Now_SetLine = 0;LCD_Menu = LCD_DEFAULT;          }}                  }break;case 3:if(LCD_Menu == LCD_SETTING){switch(LCD_SetShow.Now_SetLine){case 1: //DHT11温度LLCD_SetShow.DHT11_Tempe_Set_L++;if(LCD_SetShow.DHT11_Tempe_Set_L>=LCD_SetShow.DHT11_Humi_Set_H)LCD_SetShow.DHT11_Tempe_Set_L=LCD_SetShow.DHT11_Humi_Set_H-1;break;case 2: //DHT11温度HLCD_SetShow.DHT11_Tempe_Set_H++;if(LCD_SetShow.DHT11_Tempe_Set_H>99)LCD_SetShow.DHT11_Tempe_Set_H=99;break;    case 3: //DHT11湿度LLCD_SetShow.DHT11_Humi_Set_L++;if(LCD_SetShow.DHT11_Humi_Set_L>=LCD_SetShow.DHT11_Humi_Set_H)LCD_SetShow.DHT11_Humi_Set_L=LCD_SetShow.DHT11_Humi_Set_L-1;break;    default:break;}}if(LCD_Menu == LCD_SETTING02){switch(LCD_SetShow.Now_SetLine){case 1:  //DHT11湿度HLCD_SetShow.DHT11_Humi_Set_H++;if(LCD_SetShow.DHT11_Humi_Set_H>99)LCD_SetShow.DHT11_Humi_Set_H=99;break;case 2:  //GY906  LLCD_SetShow.GY906_Temp_Set_L+=0.1;if(LCD_SetShow.GY906_Temp_Set_L>=LCD_SetShow.GY906_Temp_Set_H)LCD_SetShow.GY906_Temp_Set_L=LCD_SetShow.GY906_Temp_Set_H-0.1;break; case 3: //GY906  HLCD_SetShow.GY906_Temp_Set_H+=0.1;if(LCD_SetShow.GY906_Temp_Set_H>99.9)LCD_SetShow.GY906_Temp_Set_H=99.9;break; default:break;}}if(LCD_Menu == LCD_SETTING03){switch(LCD_SetShow.Now_SetLine){case 2: //烟雾LCD_SetShow.Yanwu_Set++;if(LCD_SetShow.Yanwu_Set>2000)LCD_SetShow.Yanwu_Set=2000;break;   case 3: //火焰LCD_SetShow.Huoyan_Set+=0.1;if(LCD_SetShow.Huoyan_Set>3.3)LCD_SetShow.Huoyan_Set=3.3;break;   default:break;}}break;case 4:if(LCD_Menu == LCD_SETTING){switch(LCD_SetShow.Now_SetLine){case 1: //DHT11温度LLCD_SetShow.DHT11_Tempe_Set_L--;if(LCD_SetShow.DHT11_Tempe_Set_L<1)LCD_SetShow.DHT11_Tempe_Set_L=1;break;case 2: //DHT11温度HLCD_SetShow.DHT11_Tempe_Set_H--;if(LCD_SetShow.DHT11_Tempe_Set_H<=LCD_SetShow.DHT11_Tempe_Set_L)LCD_SetShow.DHT11_Tempe_Set_H=LCD_SetShow.DHT11_Tempe_Set_L+1;break;  case 3: //DHT11湿度LLCD_SetShow.DHT11_Humi_Set_L--;if(LCD_SetShow.DHT11_Humi_Set_L<1)LCD_SetShow.DHT11_Humi_Set_L=1;break;    default:break;}}if(LCD_Menu == LCD_SETTING02){switch(LCD_SetShow.Now_SetLine){case 1:  //DHT11湿度HLCD_SetShow.DHT11_Humi_Set_H--;if(LCD_SetShow.DHT11_Humi_Set_H<=LCD_SetShow.DHT11_Humi_Set_L)LCD_SetShow.DHT11_Humi_Set_H=LCD_SetShow.DHT11_Humi_Set_L-1;break;case 2:  //GY906  LLCD_SetShow.GY906_Temp_Set_L-=0.1;if(LCD_SetShow.GY906_Temp_Set_L<=0.1)LCD_SetShow.GY906_Temp_Set_L=0.1;break;  case 3: //GY906  HLCD_SetShow.GY906_Temp_Set_H-=0.1;if(LCD_SetShow.GY906_Temp_Set_H<=LCD_SetShow.GY906_Temp_Set_L)LCD_SetShow.GY906_Temp_Set_H=LCD_SetShow.GY906_Temp_Set_L-0.1;break;    default:break;}}if(LCD_Menu == LCD_SETTING03){switch(LCD_SetShow.Now_SetLine){case 2: //烟雾LCD_SetShow.Yanwu_Set--;if(LCD_SetShow.Yanwu_Set<1)LCD_SetShow.Yanwu_Set=1;break;   case 3: //火焰LCD_SetShow.Huoyan_Set-=0.1;if(LCD_SetShow.Huoyan_Set<0.1)LCD_SetShow.Huoyan_Set=0.1;break;    default:break;}}break;default:break;}KEY_Structure.TouchKey = 0xff;KEY_Structure.IS_ShortTouch = FALSE;}
}
u8 Flag_Gy906=0,Flag_Yanwu=0,Flag_Huoyan=0;
void Check_Sensior(void)
{if(LCD_DefShow.DHT11_Tempe <LCD_SetShow.DHT11_Tempe_Set_L || LCD_DefShow.DHT11_Tempe >LCD_SetShow.DHT11_Tempe_Set_H){RELAY_Control(1,ON); }else{RELAY_Control(1,OFF); }if(LCD_DefShow.DHT11_Humi <LCD_SetShow.DHT11_Humi_Set_L || LCD_DefShow.DHT11_Humi >LCD_SetShow.DHT11_Humi_Set_H){RELAY_Control(2,ON); }else{RELAY_Control(2,OFF); }if(LCD_DefShow.GY906_Temp < LCD_SetShow.GY906_Temp_Set_L || LCD_DefShow.GY906_Temp > LCD_SetShow.GY906_Temp_Set_H){Flag_Gy906 = 1;}else{Flag_Gy906 = 0;}if(LCD_DefShow.Yanwu >LCD_SetShow.Yanwu_Set){Flag_Yanwu = 1;}else{Flag_Yanwu = 0;}if(LCD_DefShow.Adc_Huoyan <LCD_SetShow.Huoyan_Set){Flag_Huoyan = 1;}else{Flag_Huoyan = 0;}if(Flag_Gy906 | Flag_Yanwu | Flag_Huoyan){BEEP_Control(ON);}else{BEEP_Control(OFF);}
}

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B024 – STM32温湿度控制体温检测烟雾报警系统

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