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无线温湿度测控系统设计报告(含电路原理图和程序).doc
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无线温湿度测控系统设计报告(含电路原理图和程序).doc
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I
酒窖无线温湿度测控系统
之无线数传系统设计
现代生活中,温湿度与人们的生产、生活愈来愈紧密相连,同时也是现代信
息化工农业生产中主要的环境条件。无论是发酵酿酒、存储粮食、蔬菜大棚、家
禽孵化、蔬果保鲜等都需适宜的温湿度。随着现代化、智能化、信息化和人民生
活水平的提高,传统的有线温湿度测控系统由于效率低,传输慢,成本高,劳动
强度大等缺点,已逐渐无法满足大众的需要。
把无线传输技术引入到酒窖、粮仓、大棚等中,工农业将逐渐地从依赖于人
力为中心的生产模式转变为以信息和软件为中心的生产模式。实现粮仓、锅炉、
温室等的自动信息采集、自动传输和智能控制,极大地提高劳动生产率和资源的
出产率、改善了其设施内的工作环境和工作条件、提高了工作效率、保障了劳动
人民的身体健康和人们的生活质量,对实现环保节约保护的可持续发展也具有重
要意义
[1]
。
温湿度控制系统的应用场合一般是元器件易老化、损坏生产系统,这就对环
境的密封性、温湿度的稳定和系统的耐温、耐腐蚀性提出了较高的要求。现代大
型酒窖中,所有的环境因子如酒窖中温、湿、气体浓度都由无线测控系统进行检
测和自动控制,实现了高效率的自动化生产。
本课题的研究目标是开发一款基于 nRF24L01 通讯的温湿度控制系统。本系
统能够把酒窖内的温湿度和工作状态等数据实时远程无线传输和显示,具有一定
的实际应用价值。
关键词:酒窖;温湿度;无线传输;nRF24L01;
II
Abstract
In modern life, not only the temperature and humidity and the production and life
of people more and more closely, but also the modern information industry and
agriculture production in the main environmental conditions. Both fermented wine,
storage of grain, vegetable greenhouses and poultry hatching, fresh fruits and
vegetables have to be appropriate temperature and humidity. With the modernization,
intelligent, informatization and the improvement of people's living standard, because
the traditional cable temperature and humidity control system of transmission
efficiency is low, slow, high cost, high labor intensity and other shortcomings,
therefore is unable to meet the needs of the public.
The wireless transmission technology is introduced into the cellar, barn, shed, etc.
industry and agriculture will gradually shift from relying on human centric mode of
production to the information and software centric mode of production. To realize the
granary, boiler, such as greenhouse automatic information collection, automatic
transmission and intelligent control, greatly improve the labor productivity and
resource productivity, improved its facilities within the working environment and
conditions, improve work efficiency, guarantee the people's health and quality of life
of people, but also has the important meaning to the realization of sustainable
development of environmental conservation.
[1]
Application of temperature and humidity control system is easy to aging,
damaged components production system, this system is stable and the sealing, the
temperature and humidity of the environment temperature, corrosion resistance,
higher requirements are put forward. Modern large wine cellar, all the environmental
factors such as temperature, humidity, in the cellar of gas concentration by the
wireless measurement and control system for detection and automatic control, realize
the automation of production efficiency.
The goal of this study is to develop a temperature and humidity control system
based on nRF24L01 communication. This system can make the wine cellar
temperature and humidity and the working state data real-time remote wireless
transmission and display, has certain practical application value.
III
Keywords: wine cellar; temperature and humidity; wireless transmission;
nRF24L01;
I
目 录
摘 要.................................................................................................I
Abstract ............................................................................................II
目 录..............................................................................................IV
1 绪论 ................................................................................................1
1.1 研究背景 ..................................................................................1
1.2 国内外研究现状 ...........................................................................1
1.2.1 温度测控研究现状 ..............................................................1
1.2.2 湿度监测研究现状 ..............................................................2
2 系统总体设计 ................................................................................2
2.1 方案论证与比较 ...........................................................................3
2.1.1 控制模块 ..............................................................................3
2.1.2 数据传输模块 .......................................................................3
2.1.3 显示模块 ..............................................................................3
2.1.4 按键模块 ..............................................................................4
2.1.5 报警电路 ..............................................................................4
2.2 总体方案选择 ...............................................................................4
3 系统的硬件设计 ............................................................................6
3.1 硬件电路总体设计思路 ...............................................................6
3.2 硬件电路各单元的介绍 ...............................................................7
3.2.1 单片机芯片 STC89C52 .......................................................7
3.2.2 无线数据传输模块 nRF24L01............................................8
3.2.3 电压转换器 LM1117 .........................................................11
3.2.4 LCD 显示电路 ....................................................................12
3.2.5 键盘电路 ............................................................................12
3.2.6 报警电路 ............................................................................13
4 软件部分的设计 ..........................................................................14
4.1 主程序 .........................................................................................14
4.2 LCD 显示模块子程序 .................................................................15
4.3 nRF24L01 发送模块子程序........................................................16
4.4 nRF24L01 接收模块子程序........................................................17
5 联机与调试 ..................................................................................18
5.1 硬件仿真 .....................................................................................18
5.2 硬件调试 .....................................................................................19
结论与展望 ......................................................................................22
II
致 谢 ................................................................................................24
参考文献 ..........................................................................................25
附录 A:系统原理图 ......................................................................26
附录 B:系统 PCB 图 ....................................................................27
附录 C:系统源程序 ......................................................................28
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