文章目錄

• 0 前言
• 1 簡介
• 2 主要器件
• 3 實現效果
• 4 設計原理
• 5 部分核心代碼
• 5 最后

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0 前言

🔥 這兩年開始畢業設計和畢業答辯的要求和難度不斷提升，傳統的畢設題目缺少創新和亮點，往往達不到畢業答辯的要求，這兩年不斷有學弟學妹告訴學長自己做的項目系統達不到老師的要求。

為了大家能夠順利以及最少的精力通過畢設，學長分享優質畢業設計項目，今天要分享的是

🚩 基于Stm32的智能疫情防控門禁系統

🥇學長這里給一個題目綜合評分(每項滿分5分)

• 難度系數：3分
• 工作量：3分
• 創新點：5分

1 簡介

針對當前的疫情形勢，設計一款智能防疫門禁系統。本系統由STM32F103C8T6單片機核心板、彩屏液晶顯示電路、語音播報電路、非接觸測溫傳感器電路、舵機驅動電路、WIFI模塊、按鍵電路及電源組成，能夠采集人體溫度、記錄人流量，測量溫度對比溫度閾值，當測量溫度低于溫度閾值時，液晶顯示“狀態:正常”，語音播報“溫度正常”，舵機動作（相當于打開閘門）；如果測量溫度超過設置閾值，液晶顯示“狀態:注意！異常”，語音播報“請注意 溫度異常”，舵機不動作（不允許通過）。

2 主要器件

• STM32F103C8T6單片機核心板
• 彩屏液晶顯示電路
• 語音播報電路
• 非接觸測溫傳感器電路
• 舵機驅動電路
• WIFI模塊
• 按鍵電路及電源

3 實現效果

4 設計原理

總體方案設計圖

彩屏液晶顯示
采用1.8寸128X160像素tft屏幕，該屏幕采用ST7735S驅動芯片，通過14pin、0.5mmFPC接口（本來是想直接自己焊接FPC連接座的，然鵝技術不達標，焊了兩個都報廢了，于是換成了直插的）與單片機相連，通過SPI串口與單片機進行通信，用來顯示所測溫度或顯示其它必要信息。

語音播放芯片
采用NV020C-SOP8語音芯片，該芯片內置一組PWM輸出器可直推0.5W喇叭，支持13bit的DAC輸出，也可外接功放模塊；采用靈活的多種操作模式（邊沿按鍵觸發，電平觸發、隨機按鍵播放、順序按鍵播放等）；外圍電路簡單，僅需一個耦合電容。靜態電路小于2uA；本系統中采用一線制控制模式，單片機僅需1個IO口輸出時序信號，即可控制該芯片輸出音頻。

非接觸測溫傳感器
采用GY-906-DCC模塊,該模塊體積小巧，內部自帶環境溫度補償和線性校準算法，通過SPI通信與單片機進行數據交換，當溫度超過設定的閾值時，單片機進行及時的顯示和邏輯處理，本模塊精度非常之高，完全可以滿足無接觸測溫功能需求（本項目用的是10cm精度的）。

WIFI模塊
ESP12F 系列模組是深圳市安信可科技有限公司開發的一系列基于樂鑫ESP8266的低功耗UART-WiFi芯片模組，可以方便地進行二次開發，接入云端服務，實現手機3/4G全球隨時隨地的控制，加速產品原型設計。模塊核心處理器 ESP8266 在較小尺寸封裝中集成了業界領先的 Tensilica L106 超低功耗 32 位微型 MCU，帶有 16 位精簡模式，主頻支持 80 MHz 和 160 MHz，支持 RTOS，集成 Wi-Fi MAC/ BB/RF/PA/LNA，板載天線。支持標準的 IEEE802.11 b/g/n 協議，完整的 TCP/IP 協議棧。用戶可以使用該模塊為現有的設備添加聯網功能，也可以構建獨立的網絡控制器。本系統采用該模塊進行數據的上傳，可以實時將數據上傳給后臺服務器，進行數據的存儲和大數據處理等。

主控模塊
STM32F103C8T6(STM32F103C6T6也可以)是一款基于ARM Cortex-M 內核STM32系列的32位的微控制器，程序存儲器容量是64KB，需要電壓2V~3.6V，本系統采用stm32f103c8t6當主控模塊，實時采集紅外傳感器獲取溫度，如果溫度低于或高于指定閾值時，操作TFT顯示屏顯示溫度異常和語音模塊播報，同時控制舵機關閉，模擬門閘關閉狀態，并將溫度信息通過wifi模塊上傳至后臺，提醒后臺工作人員進行上報和處理。主模塊原理圖如下：

5 部分核心代碼

/* USER CODE BEGIN Header */ /********************************************************************************* @file : main.c* @brief : Main program body******************************************************************************* @attention** Copyright (c) 2022 STMicroelectronics.* All rights reserved.** This software is licensed under terms that can be found in the LICENSE file* in the root directory of this software component.* If no LICENSE file comes with this software, it is provided AS-IS.********************************************************************************/ /* USER CODE END Header */ /* Includes ------------------------------------------------------------------*/ #include "main.h" #include "dma.h" #include "tim.h" #include "usart.h" #include "gpio.h"/* Private includes ----------------------------------------------------------*/ /* USER CODE BEGIN Includes */ #include "lcd.h" #include "GUI.h" #include "mlx90614.h"/* USER CODE END Includes *//* Private typedef -----------------------------------------------------------*/ /* USER CODE BEGIN PTD */ uint8_t error_flag; uint32_t peoples; /* USER CODE END PTD *//* Private define ------------------------------------------------------------*/ /* USER CODE BEGIN PD */ /* USER CODE END PD *//* Private macro -------------------------------------------------------------*/ /* USER CODE BEGIN PM *//* USER CODE END PM *//* Private variables ---------------------------------------------------------*//* USER CODE BEGIN PV *//* USER CODE END PV *//* Private function prototypes -----------------------------------------------*/ void SystemClock_Config(void); /* USER CODE BEGIN PFP *//* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/ /* USER CODE BEGIN 0 */ void delay_us(uint32_t us){uint32_t cnt = us * 8; uint32_t i = 0;for(i = 0; i < cnt; i++)__NOP(); }void yuyin(uint8_t data){uint8_t i;while(HAL_GPIO_ReadPin(busy_GPIO_Port,busy_Pin) == 0){HAL_Delay(1);};HAL_GPIO_WritePin(data_GPIO_Port,data_Pin,GPIO_PIN_RESET);HAL_Delay(5);for(i=0;i<8;i++){if(data & 0x01){HAL_GPIO_WritePin(data_GPIO_Port,data_Pin,GPIO_PIN_SET);delay_us(1800);HAL_GPIO_WritePin(data_GPIO_Port,data_Pin,GPIO_PIN_RESET);delay_us(600);}else{HAL_GPIO_WritePin(data_GPIO_Port,data_Pin,GPIO_PIN_SET);delay_us(600);HAL_GPIO_WritePin(data_GPIO_Port,data_Pin,GPIO_PIN_RESET);delay_us(1800);}data <<= 1;}HAL_GPIO_WritePin(data_GPIO_Port,data_Pin,GPIO_PIN_SET);HAL_Delay(50); }void Test_Color(void){//DrawTestPage("測試1:純色填充測試");LCD_Fill(0,0,lcddev.width,lcddev.height,WHITE);Show_Str(20,30,BLUE,YELLOW,"BL Test",16,1);HAL_Delay(800);LCD_Fill(0,0,lcddev.width,lcddev.height,RED);Show_Str(20,30,BLUE,YELLOW,"RED ",16,1);HAL_Delay(800);LCD_Fill(0,0,lcddev.width,lcddev.height,GREEN);Show_Str(20,30,BLUE,YELLOW,"GREEN ",16,1);HAL_Delay(800);LCD_Fill(0,0,lcddev.width,lcddev.height,BLUE);Show_Str(20,30,RED,YELLOW,"BLUE ",16,1);HAL_Delay(800); }//舵機angle:角度值，0~180 void Servo_Control(uint16_t angle){float temp;temp =(1.0 / 9.0) * angle + 5.0;//占空比值 = 1/9 * 角度 + 5__HAL_TIM_SET_COMPARE(&htim1, TIM_CHANNEL_1, (uint16_t )temp); }void display_init(){LCD_Fill(0,0,lcddev.width,lcddev.height,WHITE);GUI_DrawFont16(16,10,BLACK,WHITE,"智",0);GUI_DrawFont16(32,10,BLACK,WHITE,"能",0);GUI_DrawFont16(48,10,BLACK,WHITE,"防",0);GUI_DrawFont16(64,10,BLACK,WHITE,"疫",0);GUI_DrawFont16(80,10,BLACK,WHITE,"門",0);GUI_DrawFont16(96,10,BLACK,WHITE,"禁",0);GUI_DrawFont16(16,48,BLACK,WHITE,"溫",0);GUI_DrawFont16(32,48,BLACK,WHITE,"度",0);GUI_DrawFont16(48,48,BLACK,WHITE,"：",0);GUI_DrawFont16(16,80,BLACK,WHITE,"狀",0);GUI_DrawFont16(32,80,BLACK,WHITE,"態",0);GUI_DrawFont16(48,80,BLACK,WHITE,"：",0);GUI_DrawFont16(16,112,BLACK,WHITE,"人",0);GUI_DrawFont16(32,112,BLACK,WHITE,"流",0);GUI_DrawFont16(48,112,BLACK,WHITE,"量",0);GUI_DrawFont16(64,112,BLACK,WHITE,"：",0);LCD_ShowNum(72,112,peoples,4,16); }/* USER CODE END 0 *//*** @brief The application entry point.* @retval int*/ int main(void) {/* USER CODE BEGIN 1 */float temp=0.0;peoples = 0;error_flag = 0;/* USER CODE END 1 *//* MCU Configuration--------------------------------------------------------*//* Reset of all peripherals, Initializes the Flash interface and the Systick. */HAL_Init();/* USER CODE BEGIN Init *//* USER CODE END Init *//* Configure the system clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();MX_DMA_Init();MX_USART2_UART_Init();MX_TIM1_Init();MX_USART1_UART_Init();MX_TIM2_Init();/* USER CODE BEGIN 2 */LCD_Init();LCD_ShowString(5,60,16,"initializing...",0);__HAL_TIM_CLEAR_IT(&htim2, TIM_IT_UPDATE); // 使能定時器2更新中斷并啟動定時器2HAL_TIM_Base_Start_IT(&htim2);HAL_TIM_PWM_Start(&htim1,TIM_CHANNEL_1); //啟動定時器1 PWM舵機Servo_Control(45); //舵機調到45度HAL_Delay(1000); display_init();/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){HAL_GPIO_TogglePin(led_GPIO_Port,led_Pin);temp = mlx90614_read_temp()+2; //獲取溫度LCD_Fill(64,48,lcddev.width,64,WHITE); //清空溫度顯示LCD_Fill(64,80,lcddev.width,96,WHITE); //清空狀態顯示if(temp >= 33){ //>=30度才會顯示if(temp < 37.4){LCD_ShowFloatNum1(64,48,temp,4,GREEN,WHITE,16);GUI_DrawFont16(96,48,GREEN,WHITE,"℃",0);GUI_DrawFont16(64,80,GREEN,WHITE,"正",0);GUI_DrawFont16(80,80,GREEN,WHITE,"常",0);yuyin(0);peoples++;LCD_Fill(72,112,lcddev.width,128,WHITE); //清空人數顯示LCD_ShowNum(72,112,peoples,4,16); //顯示人數Servo_Control(135); //舵機調到135度 模擬開門HAL_Delay(3000);Servo_Control(45); //舵機調到45度 模擬關門}else if(temp >= 37.4 && temp <= 42){LCD_ShowFloatNum1(64,48,temp,4,RED,WHITE,16);GUI_DrawFont16(96,48,RED,WHITE,"℃",0);LCD_Fill(0,80,lcddev.width,lcddev.height,WHITE); //清空狀態顯示GUI_DrawFont16(24,96,RED,WHITE,"注",0);GUI_DrawFont16(40,96,RED,WHITE,"意",0);GUI_DrawFont16(56,96,RED,WHITE,"！",0);GUI_DrawFont16(72,96,RED,WHITE,"異",0);GUI_DrawFont16(88,96,RED,WHITE,"常",0);error_flag = 1;while(error_flag){yuyin(1);HAL_Delay(1500);}display_init();}}/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */ }/*** @brief System Clock Configuration* @retval None*/ void SystemClock_Config(void) {RCC_OscInitTypeDef RCC_OscInitStruct = {0};RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};/** Initializes the RCC Oscillators according to the specified parameters* in the RCC_OscInitTypeDef structure.*/RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;RCC_OscInitStruct.HSEState = RCC_HSE_ON;RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;RCC_OscInitStruct.HSIState = RCC_HSI_ON;RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK){Error_Handler();}/** Initializes the CPU, AHB and APB buses clocks*/RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK){Error_Handler();} }/* USER CODE BEGIN 4 */ void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin){if(GPIO_Pin == k1_Pin){HAL_GPIO_TogglePin(led_GPIO_Port,led_Pin);Servo_Control(45);error_flag = 0;HAL_GPIO_WritePin(beep_GPIO_Port,beep_Pin,GPIO_PIN_RESET);}if(GPIO_Pin == k2_Pin){HAL_GPIO_TogglePin(led_GPIO_Port,led_Pin);Servo_Control(135);}if(GPIO_Pin == k3_Pin){HAL_GPIO_TogglePin(led_GPIO_Port,led_Pin);}if(GPIO_Pin == k4_Pin){HAL_GPIO_TogglePin(led_GPIO_Port,led_Pin);} }void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim){if(htim->Instance == TIM2){if(error_flag){HAL_GPIO_TogglePin(beep_GPIO_Port,beep_Pin);}} } /* USER CODE END 4 *//*** @brief This function is executed in case of error occurrence.* @retval None*/ void Error_Handler(void) {/* USER CODE BEGIN Error_Handler_Debug *//* User can add his own implementation to report the HAL error return state */__disable_irq();while (1){}/* USER CODE END Error_Handler_Debug */ }#ifdef USE_FULL_ASSERT /*** @brief Reports the name of the source file and the source line number* where the assert_param error has occurred.* @param file: pointer to the source file name* @param line: assert_param error line source number* @retval None*/ void assert_failed(uint8_t *file, uint32_t line) {/* USER CODE BEGIN 6 *//* User can add his own implementation to report the file name and line number,ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) *//* USER CODE END 6 */ } #endif /* USE_FULL_ASSERT */

5 最后

總結

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