设计说明书
总字数:14000+
在工业生产中,实时监测与控制环境参数是保障生产安全和提高生产效率的关键。传统的测控系统往往依赖复杂的设备,成本较高且操作不够灵活。因此,设计一款基于 STC89C52 单片机的工业测控单元电路系统,旨在实现对温湿度、压力等关键参数的实时监测与智能控制,以满足工业现场的多样化需求。
该系统通过 DHT11 传感器测量温湿度,当温度或湿度超过预设上限时,自动启动风扇进行调节;利用薄膜压力传感器检测压力,当压力超出设定的最大值或低于最小值时,触发声光报警;通过按键模块设置温湿度及压力的阈值;通过 LCD1602 实时显示测量数据,便于现场人员直观查看;通过蓝牙模块将采集到的数据发送至手机 APP,并可通过 APP 远程控制风扇的开关,实现了本地与远程的双重操作模式,大大提高了系统的灵活性和实用性。
在实物测试中,系统运行稳定可靠。传感器数据监测正常,蓝牙模块数据传输稳定,与手机APP 的连接与通信顺畅,APP 控制风扇功能响应迅速。测试结果表明,该系统能够有效满足工业现场的实际应用需求,具有较高的实用价值和推广前景。
关键词:工业测控;单片机;温湿度;手机控制;显示屏
ABSTRACT
Real time monitoring and control of environmental parameters are key to ensuring production safety and improving production efficiency in industrial production. Traditional measurement and control systems often rely on complex equipment, have high costs, and lack flexibility in operation. Therefore, designing an industrial measurement and control unit circuit system based on STC89C52 microcontroller aims to achieve real-time monitoring and intelligent control of key parameters such as temperature, humidity, and pressure to meet the diverse needs of industrial sites.
The system measures temperature and humidity through DHT11 sensors, and automatically starts the fan for adjustment when the temperature or humidity exceeds the preset upper limit; Using a thin film pressure sensor to detect pressure, triggering an audible and visual alarm when the pressure exceeds the set maximum value or falls below the minimum value; Set the threshold values for temperature, humidity, and pressure through the button module; Real time display of measurement data through LCD1602, making it easy for on-site personnel to visually view; The collected data is sent to the mobile app through the Bluetooth module, and the fan switch can be remotely controlled through the app, achieving dual operation modes of local and remote, greatly improving the flexibility and practicality of the system.
In physical testing, the system runs stably and reliably. The sensor data monitoring is normal, the Bluetooth module data transmission is stable, and the connection and communication with the mobile APP are smooth. The APP controls the fan function and responds quickly. The test results show that the system can effectively meet the practical application needs of industrial sites and has high practical value and promotion prospects.
Keywords: Industrial measurement and control; singlechip; Temperature and humidity; Mobile control; display
第1章 引言
1.1 研究背景和意义
1.2 国内外研究现状
1.2.1 国外研究现状
1.2.2 国内研究现状
1.3 设计的主要内容
第2章 系统总体方案设计
2.1 系统需求设计
2.2 系统总体设计
2.3 系统主要模块的论证
2.3.1 单片机选择
2.3.2 温湿度传感器方案选择
2.3.3 压力传感器方案选择
2.3.4 显示模块方案选择
2.3.5 通信模块方案选择
第3章 系统硬件设计
3.1 单片机最小系统
3.2 温湿度检测电路设计
3.3 压力检测模块电路设计
3.4 按键模块电路设计
3.5 显示模块电路设计
3.6 声光报警模块电路设计
3.7 继电器控制模块电路设计
3.8 蓝牙模块电路设计
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 温湿度检测模块子流程设计
4.4 独立按键子流程设计
4.5 显示模块子流程设计
4.6 蓝牙模块子流程设计
第5章 实物测试
5.1 实物制作
5.2 系统功能测试
5.2.1 温湿度测控功能测试
5.2.2 压力测控功能测试
5.2.3 蓝牙模块功能测试
总结
参考文献
致 谢
附录A
附录B
附录C
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