设计说明书
总字数：17000+
摘要
随着公众健康管理意识的不断提升，体温作为反映人体健康状态的关键生理指标，其精准、便捷的监测愈发受到重视。无论是日常健康监护，还是疾病预防与早期干预场景，及时掌握体温变化都能为健康判断提供重要依据，因此，研发一款操作简便、性能可靠的体温监测设备具有重要现实意义。
本设计提出了一种基于 STC89C52 单片机的体温监测系统。系统主要功能包括：通过 MLX90614 非接触人体红外测温模块精准测量人体温度；支持用户通过按键设置正常体温的上下限，同时可通过按键执行确认测量与清除测量数据的操作；当系统检测到人体温度超出预设的正常范围时，将通过蜂鸣器自动触发报警提示；此外，系统还能通过 LCD1602 显示屏清晰直观地显示实时测量的体温数据。
该体温监测系统的作用在于，为人们提供了一种非接触、便捷且可靠的体温监测工具。通过实时监测体温、异常情况及时报警，能够帮助人们快速掌握自身健康状况，便于在体温出现异常时及时采取应对措施，为保障身体健康、提升健康管理效率提供有力支持。
关键词：STC89C52 单片机；体温监测；MLX90614；LCD1602
Design of Temperature Monitoring Based on Single Chip Microcomputer
Abstract
With the continuous improvement of public health management awareness, body temperature, as a key physiological indicator reflecting human health status, has received increasing attention for its accurate and convenient monitoring. Whether it is daily health monitoring or disease prevention and early intervention scenarios, timely monitoring of temperature changes can provide important basis for health judgment. Therefore, developing a temperature monitoring device that is easy to operate and reliable in performance has significant practical significance.
This design proposes a temperature monitoring system based on STC89C52 microcontroller. The main functions of the system include: accurately measuring human body temperature through the MLX90614 non-contact human body infrared temperature measurement module; Support users to set the upper and lower limits of normal body temperature through buttons, and perform operations such as confirming measurements and clearing measurement data through buttons; When the system detects that the human body temperature exceeds the preset normal range, it will automatically trigger an alarm prompt through the buzzer; In addition, the system can display real-time measured body temperature data clearly and intuitively through the LCD1602 display screen.
The function of this temperature monitoring system is to provide people with a non-contact, convenient, and reliable temperature monitoring tool. By real-time monitoring of body temperature and timely reporting of abnormal situations, it can help people quickly grasp their own health status, facilitate timely response measures when abnormal body temperature occurs, and provide strong support for ensuring physical health and improving health management efficiency.
Keywords： STC89C52 microcontroller; Temperature monitoring; MLX90614； LCD1602
目 录
1 绪论
1.1 研究背景及意义
1.2 国内外研究现状
1.3 主要内容
2 系统总体方案设计
2.1系统总体设计
2.2 主要模块方案选择
3 系统硬件设计
3.1 总体硬件框架
3.2 主控模块电路设计
3.3 体温检测模块电路设计
3.4 按键模块电路设计
3.5 蜂鸣器报警模块电路设计
3.6 LCD1602 显示模块电路设计
4 系统程序设计
4.1 编程软件和编程语言
4.2 系统主流程设计
4.3 独立按键
4.4 红外测温模块子流程设计
4.5 LCD1602液晶显示子流程
5 仿真绘制与功能测试
5.1 仿真绘制
5.2 体温检测及显示功能测试
5.3 按键设置功能测试
5.4 蜂鸣器报警功能测试
6 实物制作与功能测试
6.1 实物制作
6.2 体温检测及显示功能测试
6.3 按键设置功能测试
6.4 蜂鸣器报警功能测试
7 总结
参考文献
致谢
附录A 原理图
附录B PCB
附录C 主程序
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