设计说明书
总字数：16000+
摘要
在各类室内场景中，噪声的异常升高会对人们的生活、工作和健康造成不良影响。传统的室内噪声管理方式多依赖人工感知或单一的分贝测量设备，存在检测不及时、无法定位噪声来源、调控滞后等问题，难以满足精准化、智能化的室内环境管理需求。
基于 STM32F103C8T6 单片机的室内噪声检测与分析系统设计，整合了四个噪声检测模块、ULN2003 步进电机驱动模块、声光报警模块、按键模块、OLED 显示屏及 ESP8266 WIFI 模块，实现了室内噪声的多方位监测、自动调控、数据展示及远程交互等功能。系统核心功能包括：通过四个噪声检测模块检测当前环境的分贝值，并判断显示噪声来源方向（东西南北），当分贝大于设置最大值时，自动驱动步进电机关闭窗户，同时触发声光报警；支持通过按键设置分贝的最大值；OLED 显示屏实时展示当前分贝数据；经由 WIFI 模块将测量数据发送至手机端，手机端可设置声音最大值，还能将检测数据生成折线图进行分析。
该系统的实现，有效提升了室内噪声检测与调控的自动化、智能化水平，通过多方位监测、自动响应、本地与远程控制相结合，为室内噪声管理提供了高效、精准的解决方案，同时为相关智能室内设备的研发提供了技术参考，具有较高的实用价值与推广意义。
关键词：STM32F103C8T6；室内噪声检测与分析；多方位监测；智能调控；远程交互
ABSTRACT
In various indoor scenarios, abnormal increases in noise can have adverse effects on people’s lives, work, and health. Traditional indoor noise management methods mostly rely on manual perception or single decibel measuring equipment, which have problems such as untimely detection, inability to locate noise sources, and delayed regulation, making it difficult to meet the needs of precise and intelligent indoor environment management.
The design of the indoor noise detection and analysis system based on the STM32F103C8T6 microcontroller integrates four noise detection modules, a ULN2003 stepper motor driver module, an acousto-optic alarm module, a key module, an OLED display, and an ESP8266 WIFI module. It realizes functions such as multi-directional monitoring of indoor noise, automatic regulation, data display, and remote interaction. The core functions of the system include: detecting the decibel value of the current environment through four noise detection modules, judging and displaying the direction of the noise source (east, west, south, north); when the decibel is greater than the set maximum value, automatically driving the stepper motor to close the windows and triggering the acousto-optic alarm at the same time; supporting the setting of the maximum decibel value through keys; the OLED display showing the current decibel data in real-time; sending the measured data to the mobile phone terminal via the WIFI module, where the mobile phone terminal can set the maximum sound value and generate a line chart from the detected data for analysis.
The implementation of this system has effectively improved the automation and intelligence level of indoor noise detection and regulation. Through the combination of multi-directional monitoring, automatic response, local and remote control, it provides an efficient and precise solution for indoor noise management. At the same time, it provides technical reference for the research and development of related intelligent indoor equipment, and has high practical value and promotion significance.
Keywords:STM32F103C8T6; Indoor Noise Detection and Analysis; Multi-directional Monitoring; Intelligent Regulation; Remote Interaction
目录
第1章 绪论
1.1 研究的目的及意义
1.2 国内外发展情况
1.2.1 国外研究现状
1.2.2 国内研究现状
1.3 本文主要研究内容
第2章 设计思路与方案论证
2.1 主要元器件选择
2.1.1 主控芯片选择
2.1.2 噪声检测模块选择
2.1.3 步进电机及驱动模块选择
2.1.4 显示模块选择
2.1.5 按键模块选择
2.1.6 WIFI 模块选择
2.1.7 声光报警模块选择
2.2整体设计方案
第 3 章 硬件设计
3.1 主控电路模块
3.2 噪声检测电路
3.3 步进电机及驱动电路
3.4 显示模块电路
3.5 按键模块电路
3.6 声光报警电路
3.7 WIFI 模块电路
第4章 系统程序设计
4.1 编程软件介绍
4.2 系统主流程设计
4.3 独立按键
4.4 OLED显示流程设计
4.5 WiFi模块子流程设计
第 5 章 实物测试
5.1 整体实物测试
5.2 噪声检测与方向识别功能测试
5.3 噪声超标报警与窗户控制联动功能测试
5.4 显示与按键操作功能测试
5.5 WIFI 通信功能测试
第6章 总结与展望
6.1 总结
6.2 展望
致谢
参考文献
附录
附录一：原理图
附录二：PCB
附录三：主程序
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