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工学硕士学位论文 智能自适应预测模糊控制温室系统研究
摘要
设施农业是实现我国农业可持续发展的重要组成部分，现代化温室是设施农业的精华，工厂化农业的核心。温室就是建立一个模拟适合生物生长的气候条件，创造一个人工气象环境，来消除温度对生物生长的限制。而且，温室能克服环境对生物生长的限制，能使不同的农作物在不适合生长的季节产出，使季节对农作物的生长影响不大，部分或完全摆脱了农作物对自然条件的依赖。本文在查阅了大量国内外温室控制材料基础上，针对目前国内温室控制系统现状，通过分析温室内环境因子特点，把自适应预测技术、模糊控制技术、计算机控制技术、单片机控制技术和串行通信技术应用于温室系统设计与研制，研制了一套通用性强，具有一定智能化、成本低、符合我国国情的温室控制系统，实现主要环境因子综合控制，为
作物提供良好的生长环境。针对温室系统特点，所研制的控制系统主要用来控制温室系统内部的
温度、湿度、光照度和二氧化碳浓度四个参数。考虑到温室系统内部情况复杂，很难建立精确的数学模型，且具有很强的耦合与滞后性，因而采用自适应预测与模糊控制相结合的算法对温度、湿度综合控制，减小温度、湿度存在的耦合与滞后性对系统输出控制的影响。本文设计了控制器的软硬件部分。硬件设计采用上下位机两级控制方式，上位机采用PC 机，下位机采用单片机。上位机主要实现了数据存储，
控制参数向下位机输送，显示实时数据等功能，采用VB 编写上位机控制界面；下位机单片机主要功能是接收前向通道采集值，将其传给上位机，并通过下位机软件分析处理，输出信号经外接电路放大控制执行机构。同时，还对单片机系统的外接硬件电路进行了设计。本控制系统的提出，为温室控制提供了一种途径。
关键词 温室；模糊控制；单片机；VB

目录
摘 要 ················································································································ I
Abstract·············································································································· II
第 1 章绪论·····································································································1
1.1 温室系统介绍·······················································································1
1.2 国内外温室控制现状分析及发展趋势················································1
1.3 我国目前主要的温室类型及性能························································3
1.3.1 温室类型·························································································3
1.3.2 温室主要的性能指标·····································································5
1.4 温室系统主要参数和其特点································································6
1.5 智能温室系统的特点···········································································6
1.6 本课题研究的目的、意义····································································7
第 2 章智能温室系统总体设计 ·····································································8
2.1 被控参数设定、算法及硬件选择···························································8
2.2