毕业设计（论文）-基于单片机的无线温湿度检测系统的设计精选.doc

学号 毕业设计(论文) 题目: 作 者 * * 届 别 2015届 院 别 信息与通信工程学院 专 业 自动化 指导教师 职 称 完成时间 2015年5月 摘 要 温湿度测量在工业生产中有着广泛的应用，是人们日常生活中常见的物理量，工业生产、机械制造、制药、烟草、档案的保管、粮食的储存等领域对温度和温度有非常严格的要求。传统的温湿度传感器需通过较复杂的电路才能将温度信号转化为数字信号，且远距离传输会引起很大误差。监控室与现场之间必须敷设大量的电缆，非常麻烦。所以为了适应工农业生产需要、为了满足大型场所的测量、为了能进行方便快捷的维护操作，文中设计的系统采用无线温湿度检测的方案，不必敷设电缆，可以节省费用和时间。该采集系统分为采集模块和数据处理模块，以AT89C52芯片为主控芯片，利用数字式温湿度传感器DHT11进行温度和湿度的数据采集，采用nRF24L01无线传输模块进行无线通信，显示屏LCD1602对温湿度进行显示。使用Keil C51编程软件对系统进行软件设计，最后完成实物制作并对进行测试系统将采集到的数据经无线传输后在LCD1602上实时可实现温湿度采集无线传输和显示功能，并能在温度或者湿度在超过报警上限时发出警报，因此具有的应用价值 关键词Abstract Temperature and temperature requires strict very much in industrial production, machinery manufacturing, pharmaceutical, tobacco, file storage, grain storage and other fields. The traditional temperature and humidity sensors required by the complex circuit to make temperature signal into digital signal, it will cause big error for the remote transmission. It’s very troublesome to lay a number of cables between the control room and the scene. In order to adapt to the industrial and agricultural production, the needs of large places measurement, maintain and operation convenient. This system is based on wireless transmission so it can save cost and time and without cable. The acquisition system is divided into the acquisition module and the data processing module, based on AT89C52, Temperature and humidity data acquisition of the digital temperature and humidity sensor DHT11, Wireless communication with nRF24L01 wireless transmission module, Temperature and humidity display LCD1602. Using Keil C51 to design the software of the system, then complete the physical production and test it. Test results shows that the system can display the collected data after the wireless transmission and can be displayed on LCD1602 in real time., Temperature and humidity, wireless transmission and display functions can be achie