基于物联网的水质监测系统设计与实现
摘 要
水质监测系统旨在利用现代传感技术和物联网平台，实现对水体参数的全面、实时与精确监测。该监测系统的设计与实现，对于提升水质管理效率、保障公众健康及促进水资源可持续利用具有重要意义。
本研究设计了一款基于STM32单片机的水质监测系统。该系统融合了浑浊度、温度、PH值及TDS（总溶解固体）等多种传感器和其他相关模块，实现了对水质参数的全面监测与管理。温度传感器采用防水式DS18B20，用于实时监测水温；浑浊度传感器采用TSW-30，用于评估水体清澈度；PH传感器采用PH4502C传感器，用于监测水体的酸碱平衡；固体电解质传感器采用TDS，用于评估水体中的固体电解质含量。OLED显示屏能够直观、清晰地展示水温、PH值、浑浊度和电解质等监测数据，便于现场观察与分析。通过按键模块允许用户灵活设定各项参数的阈值，一旦监测数据超出预设范围，系统将自动触发声光报警，确保及时响应。该系统还通过集成的WiFi模块ESP8266，系统能够将监测数据实时上传至云端平台，用户可通过手机端远程访问这些数据，并根据需要调整参数设置或接收异常提醒，实现了对水质监测的远程管理与控制。
该基于物联网的水质监测系统设计，不仅提高了水质监测的准确性和效率，还为水质管理提供了更为便捷、高效的信息化手段，对于保障水质安全和推动环保事业的发展具有重要意义。
关键词：水质检测；传感器；WiFi；单片机；OLED显示屏
Abstract
The water quality monitoring system aims to utilize modern sensing technology and IoT platforms to achieve comprehensive, real-time, and accurate monitoring of water parameters. The design and implementation of this monitoring system are of great significance for improving water quality management efficiency, safeguarding public health, and promoting sustainable use of water resources.
This study designed a water quality monitoring system based on STM32 microcontroller. This system integrates various sensors such as turbidity, temperature, pH value, and TDS (total dissolved solids) with other related modules, achieving comprehensive monitoring and management of water quality parameters. The temperature sensor adopts waterproof DS18B20 for real-time monitoring of water temperature; The turbidity sensor uses TSW-30 to evaluate the clarity of water bodies; The pH sensor uses a PH4502C sensor to monitor the acid-base balance of water bodies; Solid electrolyte sensors use TDS to evaluate the solid electrolyte content in water bodies. OLED display screens can intuitively and clearly display monitoring data such as water temperature, pH value, turbidity, and electrolytes, making it easy to observe and analyze on site. The button module allows users to flexibly set the threshold values for various parameters. Once the monitoring data exceeds the preset range, the system will automatically trigger an audible and visual alarm to ensure timely response. The system also uses the integrated WiFi module ESP8266 to upload monitoring data in real-time to the cloud platform. Users can remotely access this data through their mobile phones and adjust parameter settings or receive abnormal alerts as needed, achieving remote management and control of water quality monitoring.
The design of a water quality monitoring system based on the Internet of Things not only improves the accuracy and efficiency of water quality monitoring, but also provides a more convenient and efficient information technology means for water quality management, which is of great significance for ensuring water quality safety and promoting the development of environmental protection.
Key words:water quality testing; Sensors; WiFi； singlechip; OLED display screen
目 录
第1章绪论
1.1 本文研究背景和意义
1.2 国内外发展现状
1.2.1国内研究现状
1.2.2国内研究现状
1.3国内外研究存在的问题
1.4 主要研究内容
第2章系统方案设计
2.1 水质控制系统涉及的关键技术
2.2 主要元器件选择
2.2.1 主控模块方案选择
2.2.2 水温检测模块方案选择
2.2.3 PH检测模块方案选择
2.2.4 浑浊度检测模块方案选择
2.2.5 固体电解质检测模块方案选择
2.2.6 无线通信模块方案选择
2.3 系统总体设计思路
第3章硬件设计
3.1 单片机最小系统
3.2 水温检测模块设计
3.3 浑浊度检测模块设计
3.4 PH检测模块设计
3.5 固体电解质监测模块电路
3.6 显示模块电路设计
3.7 独立按键电路模块
3.8 声光报警报警提醒电路模块
3.9 WiFi无线传输模块电路
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 独立按键模块子流程设计
4.4 OLED显示流程设计
4.5 WiFi模块子流程设计
第5章 实物制作与调试
5.1 实物制作
5.2 水温检测实物测试
5.3 水质测控实物测试
5.4 浑浊度测控实物测试
5.5 PH测控实物测试
5.6 WiFi模块实物测试
结论
参考文献
致谢
附录
附录A: 原理图
附录B：PCB
