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1、沈阳理工大学学士学位论文I摘 要温度和湿度是两个最基本的环境参数，与人们的生活息息相关。在工农业生产、气象、环保、国防、科研等部门，经常需要对环境温度和湿度进行测量和控制。准确测量温湿度在生物制药、食品加工、造纸等行业更是至关重要。因此研究温湿度的测量和控制方法具有重要的意义。一种基于无线多点通信数据传输的温度与湿度检测系统，采用模块化设计，有一套简单可靠的通信协议。系统设计实用简洁，实际应用中有很高的灵活性和可扩展性。此种模式还可以用于不同的系统。要防止仓储保存的物品变质，对仓库环境温度和湿度的控制显得极为重要。本系统采用单片机联合上位机对温度、湿度进行实时检测、数字显示和实时控制。本设计实
2、现的是温湿度测量和控制系统，通过 LCD 显示所测量的温湿度。系统采用集温湿度传感器与 A/D 转换器于一体的 SHT11 芯片，通过单片机进行处理显示，其它模块包括了实时时钟/日期产生电路和超限报警处理电路，对测量的值进行实时显示和报警处理。文章介绍了基于 ATMEL 公司的 AT89C51 系列单片机的温湿度实时测量与控制系统和显示系统的设计，包括介绍了硬件结构原理，并分析了相应的软件的设计及其要点，包括软件设计流程及其程序的实现。系统结构简单、实用，提高了测量精度和效率。关键词关键词：温湿度传感器；液晶显示器；单片机；串口通信；温湿度控制沈阳理工大学学士学位论文IIAbstractTem
3、perature and humidity are two basic environmental parameters which are closely related to peoples lives. In the industrial and agriculture production, meteorology, environmental protection, national defense, scientific research and other departments, we often need to measure and control the temperat
4、ure and humidity of the environment. Accurate measurement of temperature and humidity in the pharmaceutical, food processing, paper making and other sectors is essential. So the method of temperature and humidity control and measurement is of great significance.One temperature and humidity detecting
5、 system based on wireless multipoint data transmission is introduced in this paperThe system applies modularization design and a set of easy and reliable communication protoco1This design is convenient to useand easy to buildIt has high flexibility and extendibility in practical applicationSome patt
6、ern can be used in diferent system.Deterioration of items to prevent storage preservation of the warehouse environment temperature and humidity.The control is very important. This system adopts single-chip microcomputer combined PC for temperature.Degrees, humidity real-time detection, digital displ
7、ay, and real-time control.The design implementation of measurement and control temperature and humidity is MCU system, through which the temperature and humidity measurement LCD. System adopts set temperature and humidity sensor and A/D converter for SHT11 chip microcontroller processing, through th
8、at other modules including real-time display and alarm. The paper introduces the ATMEL company based on AT89C51 single-chip series of temperature and humidity measurement and control system and real-time display system design, including the hardware structure and principle, and the corresponding sof
9、tware design, including the design of the software and its key process and procedure. System structure is simple, practical, and improve the measuring precision and efficiency.Keywords: Temperature and humidity sensor; Liquid crystal display; Single chip microcomputer ; Serial communication; Temperature and humidity control沈阳理工大学学士学位论文III目 录摘 要.IAbstract.II1 绪 论.11.1研究的目的及意义.11.2国内外研究情况.11.3 系统内容的设计.21.3.1 系统的主要性能指标.21.3.2 主要工作任务.21.4方案论证.22工具.42.1 C 语言.42.1.1 C 语言的优点.42.1.2 C 语言的缺点.42.2 Proteus 仿真软件.42.3 Keil C51 编译器.52.3.1 8051 开发工具.52.3.2 uVision2 集成开发环境.63 系统的硬件设计.73.1 芯片.
