设计说明书
总字数：12000+
摘 要
近两年家电智能的应用越来越广泛，但是智能饮水机的市场却无人问津，饮水机依旧停留在功能简单，存在安全隐患的阶段，为了解决此类问题，设计出了一种基于STM32单片机的能够设定水温、水位等功能的智能饮水系统。通过按键进行水位、水温上下限值的设置，通过防水式DS18B20检测水温，通过两个液位监测模块检测水位；通过显示屏显示实时水温、水位监测值，通过蓝牙模块实现无线数据传输。本文所设计的智能饮水机就是单片机结合传感器的一个简单应用。该系统设计综合单片机以及电子技术理论，从生活实际出发，完善了饮水机的功能。整个设计系统实现三个功能，即加热、加水、设置温度、水位上下限值。与传统的饮水机相比，由于采用了自动检测和控制的电子设计技术，可较好地实现对水温和水位的测量和控制，具有较广泛的应用前景。
关键词：智能家电；单片机；智能饮水系统；水温；水位
Abstract
In the past two years, the application of intelligent home appliances is more and more extensive, but the market of intelligent drinking water dispenser is not interested, the drinking water dispenser is still in the stage of simple function and security risks, in order to solve such problems, a smart drinking water system based on STM32 MCU can set water temperature, water level and other functions is designed. The upper and lower limits of water level and water temperature are set by pressing buttons. The water temperature is detected by waterproof DS18B20 and the water level is detected by two liquid level monitoring modules. Real-time water temperature and water level monitoring values are displayed through the display screen, and wireless data transmission is achieved through the Bluetooth module. The intelligent water dispenser designed in this paper is a simple application of single chip microcomputer combined with sensor. The system design integrated single chip microcomputer and electronic technology theory, from the actual life, improve the function of the water dispenser. The whole design system realizes three functions, namely heating, adding water, setting temperature, upper and lower limits of water level. Compared with the traditional water dispenser, because of the electronic design technology of automatic detection and control, it can better realize the measurement and control of water temperature and water level, and has a wider application prospect.
Keywords: intelligent home appliances; Single-chip computer; Intelligent drinking water system; Water temperature; Water level
目录
第一章 引言
1.1 选题背景及实际意义
1.2 国内外发展历程
1.3 本论文研究目标与框架
第二章 系统设计方案
2.1 整体设计方案
2.2 主要元器件选择
2.2.1 主控芯片选择
2.2.2 检测水温方案选择
2.2.3 显示方案选择
第三章 硬件设计
3.1 单片机最小系统
3.1.1微控制器选择
3.1.2晶振及复位电路
3.2 防水DS18B20温度检测模块电路
3.3 OLED显示模块电路
3.4 水位监测模块
3.5 继电器模块电路
3.6 独立按键模块电路
3.7 蓝牙模块（ECB02）
第四章 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 温度检测模块子流程
4.5 OLED显示流程设计
4.6 蓝牙模块子流程
第五章 实物制作与调试过程
6.1 实物制作
6.2 电路焊接总图
6.2 水位检测实物测试
6.3 调整水温上下限阈值实物测试
6.4 蓝牙模块实物测试
结论
参考文献
致谢
附录
附录一: 原理图
附录二：PCB
附录三：主程序
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