基于树莓派的智能云灌溉系统研究

发布时间：2018-02-28 10:42

本文关键词： 智能灌溉 Python 模糊控制物联网树莓派　出处：《兰州理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：近年来,全世界的灌溉技术正朝着精确、高效、节省人力的方向发展,采用智能化的节水灌溉设备,也已成为全世界各个国家和地区为解决水资源危机和实现农业现代化的必然选择。当前,我国农业的灌溉方法主要还是以地面灌溉为主,该灌溉方法造成了巨大的水资源浪费,因此必须大力发展智能化的节水灌溉设备。为了提高精细化种植的用水效率,实现灌溉智能化,本项目设计并实现了一种基于Raspberry Pi II(树莓派II)的智能云灌溉系统,主要研究内容如下:(1)利用Raspberry Pi II和土壤湿度传感器、空气温湿度传感器、直流电机泵组及其驱动电路和AD数模转换模块等,组建一套低成本、高效率、稳定性强的智能灌溉硬件系统。(2)利用Python语言编写控制程序和Web应用程序,并且搭建好数据库,使得用户能够通过局域网或互联网控制本设备,查看相关数据,从而将本设备变成“云”平台。(3)编写一套模糊算法控制程序,该算法采用带修正因子的二维模糊控制器,输入量为土壤湿度和土壤湿度的变化值,输出量为直流电机的PWM值。模糊控制表为在线自动生成,能够根据不同的修正因子自动生成不同的控制表。(4)设备制作完成后,对本设备进行各方面的试验,检验是否满足设计需求和目标。本系统集合了当前比较先进的物联网硬件和软件技术,能够实时采集空气温湿度及土壤湿度的等信息,并且存储在自身的数据库中,系统自身的模糊运算控制器能够根据数据库中的数据输出合适的灌水量,从而达到智能化灌溉的目的。
[Abstract]:In recent years, the world's irrigation technology is moving in the direction of precision, efficiency, labor saving, the use of intelligent water-saving irrigation equipment, In order to solve the crisis of water resources and realize the modernization of agriculture, the irrigation method of our country is mainly based on surface irrigation, which has caused a huge waste of water resources. Therefore, it is necessary to develop intelligent water-saving irrigation equipment. In order to improve the water efficiency of fine planting and realize the intellectualization of irrigation, this project designed and implemented an intelligent cloud irrigation system based on Raspberry Pi II (raspberry pie II). The main research contents are as follows: (1) using Raspberry Pi II and soil moisture sensor, air temperature and humidity sensor, DC motor pump group and its driving circuit and AD digital-analog conversion module, a set of low cost and high efficiency is set up. The intelligent irrigation hardware system with strong stability. 2) make use of Python language to write control program and Web application program, and set up a good database, so that users can control the device through local area network or Internet, and view the relevant data. Thus, the device is transformed into a "cloud" platform. (3) A set of fuzzy algorithm control programs are compiled. The algorithm uses a two-dimensional fuzzy controller with a correction factor, and the input amount is the change of soil moisture and soil moisture. The output is the PWM value of DC motor. The fuzzy control table is automatically generated on line. It can automatically generate different control table according to different correction factors. This system gathers the advanced hardware and software technology of the Internet of things, and can collect the information of air, temperature, humidity and soil moisture in real time, and store it in its own database. The fuzzy operation controller of the system can output the appropriate amount of irrigation according to the data in the database, so as to achieve the purpose of intelligent irrigation.
【学位授予单位】：兰州理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S274;S126

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