温湿度测量系统设计

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学号：

题目类型：设计

(设计、论文、报告)

本科毕业设计(论文)

题目：温湿度测量系统设计

学院：信息科学与工程学院

专业(方向)：通信工程

班级：2011-2班

学生：

指导教师：

2015年05月22日

摘要

利用ZigBee无线通信技术和传感器技术设计一个多点无线温湿度测量系统，该系统可以设置温度最大限值，实现超值预警报警。温湿度传感器采用DHT11，无线射频芯片采用ZigBee标准的CC2530。通过温湿度传感器对实时温湿度数据的采集，利用ZigBee无线技术把实时数据传输到接收终端，最终显示在LCD显示屏上，还可以通过按键减小或者增大温度报警限值。通过该系统对温湿度的实时测量与控制以实现对人们工作生活环境温度和湿度的测量监控。该系统因为采用了CC2530模块，使得PCB电路简单，易于实现，具有功耗低、适应性强等特点。

论文首先分析介绍传温湿度感器技术与ZigBee无线技术的发展，并解析它们的技术特点。之后介绍该温湿度测量系统的硬件设计：从CC2530芯片到DHT11传感器，最终到硬件电路的论述。紧接着介绍该系统的软件设计：从系统整体方面对该系统进行一个综述，然后分别对各部分实现的功能进行阐述。

关键词：无线通信；ZigBee；传感器；DHT11；温湿度测量

The Design of the Temperature and Humidity

Measurement System

Student:LUO Gang Teacher:SHEN Zhuo-jun

Abstract: The design of temperature and humidity measuring system based on ZigBee wireless communication technology and the temperature and humidity sensor technology. The system can set the maximum limit and carry out value warning and alarming. The sensor adopts DHT11 while the RFID chip adopts the standard CC2530 of Zigbee. The real-time data, collected by the sensor and transmitted to the receiving end over ZigBee, can be showed on the LCD screen. The alarm limit can be decreased or increased by pressing the button. The system is to measure and monitor the temperature and humidity of people’s living and working environment by real time measuring and controlling. The application of CC2530 module makes the PCB circuit simple and easy to implement. It features low power consumption and strong adaptability.

The paper is firstly to introduce the development of the sensor and ZigBee, and then analyzes their features. Secondly, it introduces the hardware design of the system: from CC2530 chip, DHT11 sensor to the dissertation of the hardware circuit. Thirdly, it introduces the software design. It gives a whole review to the system elaborates the functions of each part.

Key words: Wireless communication；ZigBee；Sensor；DHT11；Temperature and humidity measurement

目录

摘要 ..................................................................................................................... I Abstract .............................................................................................................. I I

1 绪论 (1)

1.1 引言 (1)

1.2 温湿度传感器 (1)

1.3 ZigBee通信技术 (2)

1.3.1 ZigBee协议 (2)

1.3.2 ZigBee网络拓扑结构 (2)

2 系统架构 (5)

2.1 总体架构 (5)

2.2 硬件设计 (5)

2.3 电路原理图 (6)

2..3.1 控制器主板 (6)

2.3.2 数据采集板 (12)

2.4 软件设计 (15)

2.4.1 程序框图 (15)

2.4.2 程序详解 (16)

3 调试与测试 (21)

4 总结 (22)

致 (23)

参考文献 (24)

附录1 (25)