设计说明书
总字数:17000+
本论文设计了一款基于STC89C52单片机的智能婴儿车。该婴儿车具备多项智能功能,能够监测光照值、声音、监护人是否扶车、环境温度、湿度和婴儿体温,并根据设定的阈值进行相应的控制操作。首先,通过光敏电阻检测光照值,当光照值超过设置的最大值时,婴儿车会自动打开遮阳帘。其次,通过声音检测模块检测声音,当声音值超过设置的最大值时,婴儿车会播放音乐,并通过蓝牙发送“婴儿啼哭”信号。通过薄片式压力传感器检测监护人是否扶车,如果未扶车,则婴儿车会自动锁车。通过DS18B20温度传感器检测环境温度,当温度超过设置的最大值时,婴儿车会开启风扇;当温度低于设置的最小值时,通过蓝牙发送“环境温度低”信号。通过液体检测模块检测湿度值,当湿度超过设置的最大值时,通过蓝牙发送“婴儿尿床”信号。还通过非接触红外测温技术检测婴儿体温,当体温超过设置的最大值时,通过蓝牙发送“婴儿体温异常”信号。用户可以通过按键设置各项阈值,并通过LCD1602显示屏显示测量值。此外,婴儿车还可将监测数据通过蓝牙发送到手机端,提供实时监测和远程控制功能。
关键词:单片机;婴儿车;智能监测;阈值设置;LCD显示屏;蓝牙通信
This paper presents the design of an intelligent baby stroller based on the STC89C52 microcontroller. The baby stroller is equipped with multiple intelligent features, capable of monitoring light intensity, sound, whether the caregiver is holding the stroller, ambient temperature, humidity, and the baby’s body temperature, and performing corresponding control actions based on the set threshold values. Firstly, the light-dependent resistor is used to detect the light intensity, and when the light intensity exceeds the maximum threshold, the baby stroller automatically opens the sunshade (simulated by a servo motor). Secondly, the sound detection module is used to detect sound, and when the sound level exceeds the maximum threshold, the baby stroller plays music and sends a “baby crying” signal through Bluetooth. The caregiver’s interaction with the stroller is monitored using a thin-film pressure sensor, and if the caregiver is not holding the stroller, the stroller automatically locks (simulated by a relay). The DS18B20 temperature sensor is used to detect the ambient temperature, and when the temperature exceeds the maximum threshold, the baby stroller activates a fan; when the temperature is below the minimum threshold, a “low temperature” signal is sent via Bluetooth. The humidity level is monitored using a liquid detection module, and when the humidity exceeds the maximum threshold, a “baby bedwetting” signal is sent via Bluetooth. In addition, the baby’s body temperature is measured using non-contact infrared temperature measurement technology, and when the body temperature exceeds the maximum threshold, an “abnormal body temperature” signal is sent via Bluetooth. Users can set the threshold values using buttons, and the measurements are displayed on the LCD1602 screen. Furthermore, the monitored data can be sent to a smartphone via Bluetooth, enabling real-time monitoring and remote control capabilities.
Keywords: microcontroller, baby stroller, intelligent monitoring, threshold setting, LCD display, Bluetooth communication.
目 录
摘要
Abstract
第1章绪论
1.1研究背景及意义
1.2国内外研究现状
1.3论文的主要内容
第2章 系统总体设计方案
2.1系统总体设计
2.2主要模块方案选择
2.2.1主控模块方案选择
2.2.2温度监测模块方案选择
2.2.3 显示模块方案选择
第3章硬件设计
3.1主控模块电路设计
3.2 温度监测模块电路设计
3.3 尿床检测模块电路设计
3.4 扶车检测模块电路设计
3.5 婴儿哭泣检测模块电路设计
3.6 体温检测模块电路设计
3.7 光照检测模块电路设计
3.8 显示模块电路设计
3.9 舵机模块电路设计
3.10 继电器模块电路设计
3.11 音乐播放器模块电路设计
3.12 蓝牙模块电路设计
3.13 独立按键模块电路设计
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 独立按键
4.4 A/D模数转换子流程
4.5 温度检测模块子流程
4.6 LCD1602液晶显示子流程
4.7 舵机模块子流通
第5章 实物测试
5.1 整体实物焊接图
5.2环境温度监测实物测试
5.3尿床监测实物测试
5.4扶手监测实物测试
5.5 体温检测实物测试
5.6 光照检测实物测试
5.7 婴儿哭泣检测实物测试
第6章 总结展望
参考文献
附录
附录A 原理图
附录B PCB
附录C 主程序
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