摘 要温度与湿度就是两个最基本得环境参数,与人们得生活息息相关。在工农业生产、气象、环保、国防、科研等部门,常常需要对环境温度与湿度进行测量与控制。准确测量温湿度在生物制药、食品加工、造纸等行业更就是至关重要。因此讨论温湿度得测量与控制方法具有重要得意义。本设计实现得就是单片机温湿度测量与控制系统,通过 LCD 显示所测量得温湿度。系统采纳集温湿度传感器与 A/D 转换器于一体得 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/日期产生电路与超限报警处理电路,对测量得值进行实时显示与报警处理。文章介绍了基于 ATMEL 公司得 AT89C51 系列单片机得温湿度实时测量与控制系统与显示系统得设计,包括介绍了硬件结构原理,并分析了相应得软件得设计及其要点,包括软件设计流程及其程序得实现。系统结构简单、有用,提高了测量精度与效率。关键词:AT89C51、SHT11、LCD、DS1302、温湿度控制ABSTRACTTemperature and humidity are two basic environmental parameters which are closely related to people’s 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 temperature 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、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 that other modules including realtime display and alarm 、 The paper introduces the ATMEL pany based on AT89C51 singlechip series of temperature and humidity measurement and control system and realtime display system design, incl...
