基于无线传感器网络的温室大棚环境监控系统设计

发布时间：2017-12-30 18:29

本文关键词：基于无线传感器网络的温室大棚环境监控系统设计　出处：《沈阳工业大学》2017年硕士论文　论文类型：学位论文

【摘要】：我国是农业大国,随着经济和科技的飞速发展和进步,农业中的科技含量也不断提高。如何解决不断增涨的粮食需求量,提高作物产量,发展现代化农业生产,成为一个关乎人民生活以及国家命运的重要课题。温室大棚作为我国农业重要的基础设施,为植物提供合适的生长发育环境,在现代化农业生产中发挥着巨大作用。现代农业的发展方向是智能化,精准化和网络化,然而目前我国温室大棚环境监控系统普遍有两种,一是人工监控,这样存在着效率低,人力成本高,不能实时监控的问题;二是采用有线的监控系统,这些有线监控系统存在布线困难,安装成本高等问题。无线传感器网络(Wireless Sensor Network,WSN)的优点包括:成本低、结构简单、安全性高、效率高等。相较于现有的温室大棚环境监控系统,本文设计了一种基于无线传感器网络的温室大棚环境监控系统,该系统可实现无线网络通信,温湿度及光照强度检测,超限报警,数据实时显示,开关自动控制,历史数据查询等功能。用户可直接在监控中心对温室大棚内的环境进行实时有效的监控,有效的将温室大棚内的环境指标控制在适当的范围内。本系统选用CC2530作为微处理器,选用温湿度传感器SHT11和光照强度传感器BH1750进行数据监测,利用ZigBee协议栈实现无线组网与通信,应用LabVIEW编写上位机人机交换界面。该系统具有移动灵活、可扩展性强、低成本、低功耗、操作灵活的特点。测试证明,系统测量精度较高,控制操作稳定,可以较好地满足人们对温室大棚监控的需求。
[Abstract]:China is a large agricultural country, with the rapid development and progress of economy and science and technology, the scientific and technological content in agriculture is also increasing. How to solve the increasing demand for food, improve crop production, and develop modern agricultural production. Greenhouse greenhouse, as an important infrastructure of agriculture in China, provides a suitable environment for the growth and development of plants. It plays an important role in modern agricultural production. The development direction of modern agriculture is intelligence, precision and networking. However, at present, there are two kinds of greenhouse greenhouse environmental monitoring system in China, one is manual monitoring. In this way, there are problems such as low efficiency, high labor cost, and cannot be monitored in real time. The second is the use of wired monitoring systems. These wired monitoring systems have problems such as difficult wiring and high installation cost. Wireless Sensor Network is used in wireless sensor networks. The advantages of WSNs include low cost, simple structure, high security and high efficiency. In this paper, a greenhouse environment monitoring system based on wireless sensor network is designed. The system can realize wireless network communication, temperature, humidity and light intensity detection, over-limit alarm, real-time data display. Switch automatic control, historical data query and other functions. Users can directly in the monitoring center to the greenhouse environment real-time and effective monitoring. The environmental index in greenhouse is effectively controlled in a proper range. CC2530 is chosen as microprocessor in this system. The temperature and humidity sensor SHT11 and the light intensity sensor BH1750 are used to monitor the data, and the ZigBee protocol stack is used to realize wireless networking and communication. This system has the characteristics of flexible movement, strong expansibility, low cost, low power consumption and flexible operation. The test results show that the system has high measurement accuracy. The control operation is stable and can meet the needs of greenhouse monitoring.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP277;S625

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