设计说明书
总字数：14000+
摘要
在粮食仓储领域，环境条件的稳定对保障粮食质量、减少损耗至关重要。传统粮仓管理主要依靠人工巡检，不仅耗费大量人力，还存在监测滞后、调控不及时等问题，难以适应现代化粮食存储对环境精准控制的需求。
基于 STC89C52 单片机的智能粮仓监测系统，集成了 DHT11 温湿度传感器、按键、LCD1602 显示屏、蓝牙模块及执行设备（通风机、除湿机），实现了粮仓环境的自动化监测与智能调控。系统核心功能包括：通过 DHT11 实时监测温湿度，当温度高于最大值（50℃）时启动通风机，低于最小值（35℃）时关闭通风机；当湿度高于最大值（70%）时启动除湿机，低于最小值（25%）时关闭除湿机。支持通过按键设置温湿度的最大及最小值，也能手动控制通风机和除湿机的开关。借助 LCD1602 显示屏实时显示温湿度数据；通过蓝牙模块将温湿度数据传输至手机端，同时支持通过微信小程序远程控制通风机和除湿机的开关。
该系统有效提升了粮仓环境管理的自动化水平，减少了人工成本，确保了粮仓温湿度的稳定，为粮食安全存储提供了可靠保障，对同类仓储环境监测系统的研发具有一定参考价值，具备实际应用意义。
关键词：STC89C52；智能粮仓；监测系统；温湿度控制；蓝牙通信
ABSTRACT
In the field of grain storage, the stability of environmental conditions is crucial for ensuring grain quality and reducing losses. Traditional grain warehouse management mainly relies on manual inspection, which not only consumes a large amount of manpower but also has problems such as delayed monitoring and untimely regulation, making it difficult to meet the needs of modern grain storage for precise environmental control.
The intelligent grain warehouse monitoring system based on STC89C52 single-chip microcomputer integrates DHT11 temperature and humidity sensor, buttons, LCD1602 display, Bluetooth module and executive devices (ventilator, dehumidifier), realizing automatic monitoring and intelligent regulation of the grain warehouse environment. The core functions of the system include: real-time monitoring of temperature and humidity through DHT11, starting the ventilator when the temperature is higher than the maximum value (50℃), and closing the ventilator when the temperature is lower than the minimum value (35℃); starting the dehumidifier when the humidity is higher than the maximum value (70%), and closing the dehumidifier when the humidity is lower than the minimum value (25%). It supports setting the maximum and minimum values of temperature and humidity through buttons, as well as manually controlling the on/off of the ventilator and dehumidifier. The LCD1602 display is used to show temperature and humidity in real-time. The Bluetooth module transmits temperature and humidity data to the mobile phone remotely, and the on/off of the ventilator and dehumidifier can also be controlled remotely through the APP.
This system effectively improves the automation level of grain warehouse environment management, reduces labor costs, ensures the stability of temperature and humidity in the grain warehouse, provides a reliable guarantee for safe grain storage, and has certain reference value for the research and development of similar warehouse environment monitoring systems, with practical application significance.
Keywords:STC89C52; Intelligent grain warehouse; Monitoring system; Temperature and humidity control; Bluetooth communication
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 温湿度传感器选择
2.1.3 显示模块选择
2.1.4 蓝牙模块选择
2.1.5 按键模块选择
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 温湿度传感器电路
3.3 显示模块电路
3.4 按键模块电路
3.5 蓝牙模块电路
3.6 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 温湿度检测模块子流程
4.5 LCD1602显示模块子流程设计
4.6 蓝牙模块子流程
第 5 章 实物测试
5.1 整体实物测试
5.2 温湿度传感器功能测试
5.3 显示模块功能测试
5.4 按键模块功能测试
5.5 蓝牙模块功能测试
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
购买后可查看具体内容！