精品毕业论文-- 基于物联网技术的温室大棚控制系统设计.doc

摘要
基于物联网技术的温室大棚控制系统以AT89S52单片机为核心,采用加热炉和风机、喷灌和渗灌、荧光灯,分别为温室大棚进行加热、增加二氧化碳浓度、增加空气湿度、灌溉、人工补光;使用SHT10数字式温湿度传感器、FDS-100型土壤水分传感器、SH-300-DH二氧化碳传感器和TSL2561光强传感器,将采集的大棚内的数据信息在液晶1602上显示出来,并通过无线通信模块nRF905将信号传到从机。主机完成各项数值预制和报警电路模块功能,从机完成采集数值的显示及加热炉和风机、喷灌和渗灌和荧光灯的控制功能。本文设计的温室大棚控制系统,能够实时采集控制温室内的空气温湿度、土壤湿度、光照强度、二氧化碳浓度等环境参数,以直观的数据显示给用户,并可以根据种植作物的需求提供报警信息。
关键词 AT89S52;传感器;nRF905
Abstract
Based on the content of working technologies greenhouse canopy control system by AT89S52 single chip puter as the core, the heating furnace and fan, sprinkler irrigation and irrigation, fluorescent lamp, respectively, and to increase the heat shed greenhouse carbon dioxide concentration, increase the air humidity, irrigation, artificial light supplement; SHT10 digital temperature and humidity sensors, using FDS-100 type soil moisture sensor, SH-300-DH carbon dioxide sensor and TSL2561 strong light sensor, will shed the data collected in the information in the liquid crystal display on the 1602, and through the serial munication will signals to from the machine. The host to finish the numerical precast and alarm circuit module function, and from plete collection of machine numerical display and heating and fan, sprinkler irrigation and irrigation and fluorescent lamp control functions. In this paper the design greenhouse canopy control system, can collect real-time control of the air temperature and humidity in greenhouse, soil humidity, light intensity, the concentration of carbon dioxide and other environmental parameters to intuitive data shows to the user, and may, according to the demand of planting crops provide alarm information.
Keywords AT89S52;SHT10;FDS-100;SH-300-DH;TSL2561
1 绪论
随着通信技术的飞速发展,人们已经不再满足于人一与人之间的通信方式以及需要人参与交互的通信方式,一种更加智能、更加便捷的通信方式为人们所期待。物联网---一种物体、机器间不需要人的参与即可完成信息交互的通信方式( of things)便应运而生[1]。简单的说,物联网是物物相连的网络,在整个信息采集、传递、计算的过程中无需人的参与交互。
物联网是基于传感器技术的新型网络技术,在现代农业中,大量的传感器节点构成了一张张功能各异的监控网络,通过各种传感器采集与作物生产有关的各种生产信息和环境参数,可以帮助农民及时发现问题,准确地捕捉发生问题的位置,对耕作、播种、施肥、灌溉等田间作业进行数字化控制,使农业投入品的资源