设计说明书
总字数：15000+
摘要
在医药研发与生产过程中，药品搅拌的精准性和稳定性对药品质量至关重要。传统的药品搅拌多依赖人工操作，不仅存在搅拌力度不均、温度控制不精准等问题，还可能因人为因素导致药品污染，难以满足现代化医药生产对标准化、精准化的要求。
基于 STC89C52 单片机的药品搅拌器，整合了 HX711 重量传感器、DS18B20 温度监测模块、3 个独立按键、LCD1602 显示屏、ECB02 蓝牙模块及执行设备（加热装置、搅拌电机），实现了药品搅拌过程的自动化监测与控制。系统核心功能包括：通过 HX711 实时监测药品重量，为搅拌剂量控制提供数据支持；借助 DS18B20 检测水温，当水温低于最小值时启动加热装置，高于最大值时停止加热；支持通过独立按键设置温度等参数阈值，以及手动控制加热装置和搅拌电机的启停；通过 LCD1602 显示屏实时显示当前水温、药品重量等信息；利用 ECB02 蓝牙模块将数据同步至手机端，实现远程查看数据及设置参数、控制器件运行。
该系统的实现，有效提升了药品搅拌过程的自动化水平，减少了人工干预带来的误差与污染风险，确保了温度控制和搅拌操作的稳定性与精准性，为医药研发和小批量生产提供了可靠的设备支持，同时为同类医药搅拌设备的研发提供了参考，具有一定的实际应用价值。关键词：STC89C52；药品搅拌器；重量监测；温度控制；蓝牙通信；自动化
ABSTRACT
In the process of pharmaceutical research and development and production, the accuracy and stability of drug stirring are crucial to drug quality. Traditional drug stirring mostly relies on manual operation, which not only has problems such as uneven stirring force and inaccurate temperature control, but also may cause drug contamination due to human factors, making it difficult to meet the requirements of standardization and precision in modern pharmaceutical production.
The medicine stirrer based on the STC89C52 single-chip microcomputer integrates HX711 weight sensor, DS18B20 temperature monitoring module, 3 independent buttons, LCD1602 display, ECB02 Bluetooth module and executive devices (heating device, stirring motor), realizing automatic monitoring and control of the drug stirring process. The core functions of the system include: real-time monitoring of drug weight through HX711 to provide data support for stirring dose control; detecting water temperature with DS18B20, starting the heating device when the water temperature is lower than the minimum value, and stopping heating when it is higher than the maximum value; supporting the setting of parameter thresholds such as temperature through independent buttons, as well as manual control of the start and stop of the heating device and stirring motor; real-time display of current water temperature, drug weight and other information through LCD1602 display; synchronizing data to the mobile phone via ECB02 Bluetooth module to realize remote data viewing, parameter setting and device control.
The implementation of this system effectively improves the automation level of the drug stirring process, reduces errors and pollution risks caused by manual intervention, ensures the stability and accuracy of temperature control and stirring operations, provides reliable equipment support for pharmaceutical research and development and small-batch production, and also offers a reference for the research and development of similar pharmaceutical stirring equipment, with certain practical application value.
Keywords: STC89C52; Medicine stirrer; Weight monitoring; Temperature control; Bluetooth communication; Automation
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
1.3 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 重量传感器选择
2.1.3 温度监测模块选择
2.1.4 按键模块选择
2.1.5 显示模块选择
2.1.6 蓝牙模块选择
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 重量传感器电路
3.3 温度监测模块电路
3.4 按键模块电路
3.5 显示模块电路
3.6 蓝牙模块电路
3.7 执行设备驱动电路
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 温度检测模块子流程设计
4.5 称重模块子流程设计
4.6 LCD1602液晶显示子流程
4.7 蓝牙模块子流程
第 5 章 仿真测试
5.1 整体仿真测试
5.2 重量传感器功能测试
5.3 温度监测模块功能测试
5.4 按键与显示功能测试
5.5 蓝牙模块功能测试
第 6 章 实物测试
6.1 整体实物测试
6.2 重量传感器功能测试
6.3 温度监测模块功能测试
6.4 按键与显示功能测试
6.5 蓝牙模块功能测试
第 7 章 总结与展望
7.1 总结
7.2 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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