STM32项目分享：智能厨房安全系统(机智云)

项目成品图片：

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项目简介

1.功能详解

STM32智能厨房安全系统(机智云)

功能如下：

STM32F103C8T6单片机作为主控芯片

检测功能：检测环境温湿度、烟雾浓度、一氧化碳、火焰信号和人体信号

显示功能：OLED显示环境参数

手动控制：通过手机APP控制水泵、风扇、LED灯和阀门（舵机模拟）的开关

自动模式：系统检测到有人开启LED，温度高于阈值开启风扇，烟雾和一氧化碳超过阈值开启风扇并关闭阀门，发生火灾时关闭阀门、开启水泵

模式切换：可以在APP上切换模式

阈值调节：按键可调节阈值

机智云APP：接入机智云APP查看数据与控制下发

2.材料清单

STM32F103C8T6单片机

OLED 屏幕

DHT11温湿度传感器

MQ2烟雾传感器

MQ7一氧化碳传感器

火焰传感器

光电红外传感器

ESP8266模块（WIFI）

继电器

有源蜂鸣器

水泵

风扇模块

舵机

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原理图设计

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PCB硬件设计

PCB图

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程序设计

#include"stm32f10x.h" // Device header#include"iwdg.h"#include"adcx.h"#include"oled.h"#include"dht11.h"#include"led.h"#include"key.h"#include"tim2.h" #include"tim3.h" #include"usart3.h" #include"usart.h"#include"sensormodules.h"#include"gizwits_product.h"#include"flash.h"#include"hc_sr501.h"#include"servo.h"#include"pwm.h"
#defineKEY_11#defineKEY_22#defineKEY_33#defineKEY_44
#defineFLASH_START_ADDR0x0801f000//写入的起始地址
SystemStatesystemState;//声明系统状态结构体变量SensorModules sensorData;//声明传感器数据结构体变量SensorThresholdValue Sensorthreshold;//声明传感器阈值结构体变量
uint8_tmenu =1;//显示菜单变量uint8_tOLED_Clear_Flag;//阈值设置界面的清屏标志位uint8_tmode =0;//系统模式
uint8_tdisplayPageNum;//主页面显示页面
uint8_tvalveLockFlag;//阀门自锁标志位
enum{display_page1 =1,display_page2,settingsPage
}MenuPages;
/** * @brief 显示菜单1的固定内容 * @param 无 * @retval 无 */voidOLED_Menu1(void){//显示“温度： C”OLED_ShowChinese(1,1,0);OLED_ShowChinese(1,2,1);OLED_ShowChar(1,5,':');OLED_ShowChar(1,8,'C');
//显示“湿度: %”OLED_ShowChinese(1,5,2);OLED_ShowChinese(1,6,3);OLED_ShowChar(1,13,':');OLED_ShowChar(1,16,'%');
//显示“烟雾浓度： ”OLED_ShowChinese(2,1,6);OLED_ShowChinese(2,2,7);OLED_ShowChinese(2,3,32);OLED_ShowChinese(2,4,33);OLED_ShowChar(2,9,':');OLED_ShowString(2,14,"ppm");
//显示“一氧化碳： ”OLED_ShowChinese(3,1,42);OLED_ShowChinese(3,2,43);OLED_ShowChinese(3,3,44);OLED_ShowChinese(3,4,45);OLED_ShowChar(3,9,':');OLED_ShowString(3,14,"ppm");
//显示“系统模式：”OLED_ShowChinese(4,1,24);OLED_ShowChinese(4,2,25);OLED_ShowChinese(4,3,26);OLED_ShowChinese(4,4,27);OLED_ShowChar(4,9,':');}
/** * @brief 显示菜单2的固定内容 * @param 无 * @retval 无 */voidOLED_Menu2(void){//显示“火焰信号：”OLED_ShowChinese(1,1,8);OLED_ShowChinese(1,2,9);OLED_ShowChinese(1,3,10);OLED_ShowChinese(1,4,11);OLED_ShowChar(1,9,':');

//显示“人体信号：%”OLED_ShowChinese(2,1,12);OLED_ShowChinese(2,2,13);OLED_ShowChinese(2,3,14);OLED_ShowChinese(2,4,15);OLED_ShowChar(2,9,':');

}
/** * @brief 显示菜单1的传感器数据 * @param 无 * @retval 无 */voidSensorDataDisplay1(void){//显示温度数据OLED_ShowNum(1,6, sensorData.temp,2);//显示湿度数据OLED_ShowNum(1,14, sensorData.humi,2);
//显示烟雾浓度数据OLED_ShowNum(2,10, sensorData.smog,4);
//显示甲烷浓度数据OLED_ShowNum(3,10, sensorData.methane,4);
//显示系统状态数据if(!mode){OLED_ShowChinese(4,6,30);OLED_ShowChinese(4,7,31);}else{OLED_ShowChinese(4,6,28);OLED_ShowChinese(4,7,29);}}
/** * @brief 显示菜单2的传感器数据 * @param 无 * @retval 无 */voidSensorDataDisplay2(void){if(!sensorData.flame){OLED_ShowChinese(1,6,36);OLED_ShowChinese(1,7,37);}else{OLED_ShowChinese(1,6,34);OLED_ShowChinese(1,7,35);}
if(!sensorData.people){OLED_ShowChinese(2,6,40);OLED_ShowChinese(2,7,41);}else{OLED_ShowChinese(2,6,38);OLED_ShowChinese(2,7,39);}}
/** * @brief 显示阈值设置界面1的固定内容 * @param 无 * @retval 无 */voidOLED_settingsPage1(void){//显示“温度阈值：”OLED_ShowChinese(1,2,0);OLED_ShowChinese(1,3,1);OLED_ShowChinese(1,4,18);OLED_ShowChinese(1,5,19);OLED_ShowChar(1,11,':');
//显示“火焰阈值：”OLED_ShowChinese(2,2,8);OLED_ShowChinese(2,3,9);OLED_ShowChinese(2,4,18);OLED_ShowChinese(2,5,19);OLED_ShowChar(2,11,':');
//显示“烟雾阈值：”OLED_ShowChinese(3,2,6);OLED_ShowChinese(3,3,7);OLED_ShowChinese(3,4,18);OLED_ShowChinese(3,5,19);OLED_ShowChar(3,11,':');
//显示“一氧阈值：”OLED_ShowChinese(4,2,42);OLED_ShowChinese(4,3,43);OLED_ShowChinese(4,4,18);OLED_ShowChinese(4,5,19);OLED_ShowChar(4,11,':');}
/** * @brief 显示阈值界面1的传感器数据 * @param 无 * @retval 无 */voidsettingsThresholdDisplay1(void){//显示温度阈值数据OLED_ShowNum(1,13, Sensorthreshold.tempValue,2);
//显示火焰阈值数据OLED_ShowNum(2,13, Sensorthreshold.flameValue,2);
//显示烟雾阈值数据OLED_ShowNum(3,13, Sensorthreshold.smogValue,3);
//显示甲烷阈值数据OLED_ShowNum(4,13, Sensorthreshold.methaneValue,3);}
/** * @brief 显示阈值界面的选择符号 * @param num 为显示的位置 * @retval 无 */voidOLED_Option(uint8_tnum){switch(num){case1:OLED_ShowChar(1,1,'>');OLED_ShowChar(2,1,' ');OLED_ShowChar(3,1,' ');OLED_ShowChar(4,1,' ');break;
case2:OLED_ShowChar(1,1,' ');OLED_ShowChar(2,1,'>');OLED_ShowChar(3,1,' ');OLED_ShowChar(4,1,' ');break;
case3:OLED_ShowChar(1,1,' ');OLED_ShowChar(2,1,' ');OLED_ShowChar(3,1,'>');OLED_ShowChar(4,1,' ');break;
case4:OLED_ShowChar(1,1,' ');OLED_ShowChar(2,1,' ');OLED_ShowChar(3,1,' ');OLED_ShowChar(4,1,'>');break;
default:break;}}

/** * @brief 记录阈值界面下按KEY1的次数 * @param 无 * @retval 返回次数 */uint8_tSetSelection(void){staticuint8_tcount =1;if(KeyNum == KEY_1){KeyNum =0;count++;if(count >4){count =1;}}returncount;}
/** * @brief 对阈值界面的传感器阈值进行修改 * @param num 为当前用户需要更改的传感器阈值位置 * @retval 无 */voidThresholdModification(uint8_tnum){switch(num){case1:if(KeyNum ==3){KeyNum =0;Sensorthreshold.tempValue++;if(Sensorthreshold.tempValue >99){Sensorthreshold.tempValue =0;}}elseif(KeyNum ==4){KeyNum =0;Sensorthreshold.tempValue--;if(Sensorthreshold.tempValue >99){Sensorthreshold.tempValue =99;}}break;
case2:if(KeyNum ==3){KeyNum =0;Sensorthreshold.flameValue++;if(Sensorthreshold.flameValue >99){Sensorthreshold.flameValue =0;}}elseif(KeyNum ==4){KeyNum =0;Sensorthreshold.flameValue--;if(Sensorthreshold.flameValue >99){Sensorthreshold.flameValue =99;}}break;
case3:if(KeyNum ==3){KeyNum =0;Sensorthreshold.smogValue++;if(Sensorthreshold.smogValue >500){Sensorthreshold.smogValue =0;}}elseif(KeyNum ==4){KeyNum =0;Sensorthreshold.smogValue--;if(Sensorthreshold.smogValue >500){Sensorthreshold.smogValue =500;}}break;
case4:if(KeyNum ==3){KeyNum =0;Sensorthreshold.methaneValue++;if(Sensorthreshold.methaneValue >500){Sensorthreshold.methaneValue =0;}}elseif(KeyNum ==4){KeyNum =0;Sensorthreshold.methaneValue--;if(Sensorthreshold.methaneValue >500){Sensorthreshold.methaneValue =500;}}break;
default:break;}}
/** * @brief 系统自动模式下的运行 * @param 无 * @retval 无 */voidAutomaticMode(){if(mode){/*当系统检测到有人时会开启LED灯，没人时自动关闭*/if(sensorData.people){currentDataPoint.valueLED =1;LED_ON();
}else{currentDataPoint.valueLED =0;LED_OFF();
}
/*系统检测到温度高于阈值时会自动开启风扇*/if(sensorData.temp > Sensorthreshold.tempValue){currentDataPoint.valuefan =1;Relay_ON(1);Buzzer_ON();
}

/*系统检测到火焰时，会自动开启水泵进行灭火并且关闭阀门*/if(sensorData.flame){Relay_ON(0);currentDataPoint.valuevalve =1;currentDataPoint.valuewaterPump =1;systemState.flameAlarm =1;Buzzer_ON();
}else{systemState.flameAlarm =0;currentDataPoint.valuewaterPump =0;currentDataPoint.valuevalve =0;
}

/*系统检测到烟雾浓度高于阈值，会自动开启风扇并且关闭阀门*/if(sensorData.smog > Sensorthreshold.smogValue){
currentDataPoint.valuefan =1;systemState.smogAlarm =1;Relay_ON(1);currentDataPoint.valuevalve =1;Buzzer_ON();
}else{systemState.smogAlarm =0;}

/*系统检测到甲烷浓度高于阈值，会自动开启风扇并且关闭阀门*/if(sensorData.methane > Sensorthreshold.methaneValue){
currentDataPoint.valuefan =1;systemState.methaneAlarm =1;Relay_ON(1);currentDataPoint.valuevalve =1;Buzzer_ON();
}else{systemState.methaneAlarm =0;}
/*控制舵机运行*/if((sensorData.flame || sensorData.smog > Sensorthreshold.smogValue || sensorData.methane > Sensorthreshold.methaneValue)&& valveLockFlag ==0){valveLockFlag =1;Servo_SetAngle(90);
}elseif(valveLockFlag && !sensorData.flame && (sensorData.smog ) < Sensorthreshold.smogValue && (sensorData.methane ) < Sensorthreshold.methaneValue){valveLockFlag =?0;Relay_OFF(1);Relay_OFF(0);currentDataPoint.valuevalve =?0;Servo_SetAngle(0);}
/*控制风扇停止*/if(sensorData.temp < Sensorthreshold.tempValue && (sensorData.smog ) < Sensorthreshold.smogValue && (sensorData.methane ) < Sensorthreshold.methaneValue){currentDataPoint.valuefan =?0;Relay_OFF(1);}
/*控制蜂鸣器停止*/if(sensorData.temp < Sensorthreshold.tempValue && !sensorData.flame && (sensorData.smog ) < Sensorthreshold.smogValue && (sensorData.methane ) < Sensorthreshold.methaneValue){Buzzer_OFF();}}}

/** * @brief 传感器数据扫描 * @param 无 * @retval 无 */voidSensorScan(void){DHT11_Read_Data(&sensorData.humi, &sensorData.temp);HC_SR501_Input(&sensorData.people);Get_Average_MQ2_PPM(&sensorData.smog);Get_Average_MQ4_PPM(&sensorData.methane);
if(Get_Average_Flame_Percent() < Sensorthreshold.flameValue){ sensorData.flame =?0;}else{sensorData.flame =?1;}}
intmain(void){ADCX_Init();Timer2_Init(9,14398);Uart2_Init(9600);Uart1_Init(115200);Uart3_Init();IWDG_Init();//初始化看门狗PWM_Init();
OLED_Init();DHT11_Init();LED_Init();Buzzer_Init();Relay_Init();Key_Init();HC_SR501_Init();Servo_Init();
Sensorthreshold.tempValue =FLASH_R(FLASH_START_ADDR);//从指定页的地址读FLASHSensorthreshold.flameValue =FLASH_R(FLASH_START_ADDR+2);//从指定页的地址读FLASHSensorthreshold.smogValue =FLASH_R(FLASH_START_ADDR+4);//从指定页的地址读FLASHSensorthreshold.methaneValue =FLASH_R(FLASH_START_ADDR+6);
GENERAL_TIM_Init();userInit();//完成机智云初始赋值gizwitsInit();//开辟一个环形缓冲区gizwitsSetMode(WIFI_AIRLINK_MODE);
Delay_ms(1000);Servo_SetAngle(135);Buzzer_ON();Delay_ms(1000);Buzzer_OFF();Servo_SetAngle(45);KeyNum =0;gizwitsSetMode(WIFI_AIRLINK_MODE);Delay_ms(1000);
while(1){/*阈值上传至机智云云平台*/do{currentDataPoint.valuetempValue = Sensorthreshold.tempValue;currentDataPoint.valueflameValue = Sensorthreshold.flameValue;currentDataPoint.valuesmogValue = Sensorthreshold.smogValue;currentDataPoint.valuemethaneValue = Sensorthreshold.methaneValue;


}while(0);
IWDG_ReloadCounter();
switch(menu){casedisplay_page1:
SensorScan();//获取传感器数据if(!displayPageNum){SensorDataDisplay1();//显示传感器1数据OLED_Menu1();//显示主页面1固定信息}else{SensorDataDisplay2();//显示传感器2数据OLED_Menu2();//显示主页面2固定信息}
AutomaticMode();
if(KeyNum == KEY_1){Delay_ms(10);if(KeyNum ==1){KeyNum =0;OLED_Clear();//清屏menu = settingsPage;}}
if(KeyNum == KEY_2)//是否按下按键2{KeyNum =0;OLED_Clear();//清屏displayPageNum = !displayPageNum;}break;

casesettingsPage:
settingsThresholdDisplay1();//显示传感器阈值1数据OLED_settingsPage1();//显示阈值设置界面1固定信息ThresholdModification(SetSelection());//调节传感器阈值
OLED_Option(SetSelection());//获取按键次数，从而判断“>”显示位置
if(KeyNum == KEY_2)//判断用户是否按下退出按键{KeyNum =0;OLED_Clear();//清屏menu = display_page1;//回到主页面1

//存储修改的传感器阈值至flash内FLASH_W(FLASH_START_ADDR, Sensorthreshold.tempValue, Sensorthreshold.flameValue,Sensorthreshold.smogValue, Sensorthreshold.methaneValue);currentDataPoint.valuetempValue = Sensorthreshold.tempValue;currentDataPoint.valueflameValue = Sensorthreshold.flameValue;currentDataPoint.valuesmogValue = Sensorthreshold.smogValue;currentDataPoint.valuemethaneValue = Sensorthreshold.methaneValue;}break;default:break;}
/*机智云阈值更改后保存至Flash*/if(valueFlashFlag){valueFlashFlag =0;FLASH_W(FLASH_START_ADDR, Sensorthreshold.tempValue, Sensorthreshold.flameValue,Sensorthreshold.smogValue, Sensorthreshold.methaneValue);}
userHandle();//更新机智云数据点变量存储的值gizwitsHandle((dataPoint_t *)¤tDataPoint);//数据上传至机智云}}

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实验效果