基于单片机的温湿度监测与控制改好的分析报告.docVIP

编 号： 审定成绩： 重庆邮电大学 毕业设计（论文） 设计（论文）题目： 学院： 学 生 姓 名 ： 专 业 ： 班 级 ： 学 号 ： 指 导 教 师 ： 答辩组 负责人 ： 填表时间：年月 重庆邮电大学教务处制 AT89S51，通过性价比高的湿温度检测系统来进行基于单片机的湿度温度的监测与控制。硬件电路的组成有5个部分，分别为单片机、显示模块、报警器、湿温度传感器和键盘。系统的显示模块由1602字符型液晶模块及温湿度传感器【关键词】AT89S51 DHT11 ABSTRACT This paper focuses on hardware and software design, the design of microcontroller-based systems used in the subsystem, respectively DHT11 and AT89S51,. This design includes the design of hardware and system software design. Hardware circuit includes a microcontroller, temperature and humidity sensors, display module, the alarm and the keyboard 5, the DHT11 temperature and humidity sensor and 1602 character LCD modules and DHT11 temperature and humidity sensor structure, this system has a high practical applicability, the system circuit is relatively simple, simple, accurate test. Preset temperature alarm circuit and comparing the value of the temperature and humidity sensors temperature and humidity control circuit, the control circuit operation is simple, just set a predetermined temperature value wetlands, the actual operation of the circuit in the process, if the actual measured values ??than scheduled the value must be high, it will alarm reminder.. Software part includes the main program, display routines, subroutines side temperature and humidity The design uses the DHT11 temperature and humidity sensors is a digital output with a calibrated temperature and humidity combined sensor, the sensor includes a resistance and a sense of the original wet NTC temperature measurement devices, and with a high-performance 8-bit microcontroller connected. Therefore, the product has excellent quality, fast response, anti-interference ability, high cost and other advantages. AT89S51 is a low consumption of item-level, high-performance CMOS8 bit microcontroller, because of its powerful features and low price, so use it in many fields. 【】Temperature mea