基于单片机的温室自动控制系统设计

基于单片机的温室自动控制系统设计摘要:温度、湿度和 co 2 浓度等是影响作物生长的重要环境因子,为有效进行作物生长的环境控制,针对日光温室的特点， 以模糊控制理论为基础,计算机控制技术为平台，设计了一个基于模糊控制技术的计算机温室控制系统。介绍了以 PC 机为 上位计算机, MCS 一 51 单片机为核心的智能仪表为下位机的智能温室分布式测控系统的工作原理及主要功能。详细阐述了 该系统的软、硬件实现方法。该套控制系统符合我国现阶段的国情且能很好地满足生产要求，成本低,运行可靠，便于推广 应用。关键词：智能温室 ; 计算机分布式自动控制系统 ；RS -485 通信网络 ; 智能设备 ， 模糊控制中图分类号:TP302。1Distributed Measure and Control System controlled by single-chip controller used in Agricultural GreenhouscTemperature, humidity and the thickness of co2 have an important effect on the crops 。In order to control such environmental factors。 Based on Fuzzy control theory and computer control technology 。The working Principle and main functions of the intelligent greenhouses with distributed control system in the Paper are introduced。 This system uses PC as a host computer and intelligent instruments with MCS—51 single-chip microcomputers as secondary computer systems. The design methods of system hardware and software are fully described。 The system was accord with the reality of agricultural Production of our country and was considered suitable to Agricultural Greenhouse and it can reach Producing requirement， Low—cost and high-reliability.KEY WORDS:intelligent greenhouse , computer distributed Auto—control system, RS-485 communication network , intelligent instrument , fuzzy control0 引言智能化温室是集农业科技的高、精、尖技术和计算机自动控制技术于一体的先进的农业生产设施，是现代农业科技向 产业转化的物质基础。它能营造相对独立的作物生长环境，彻底摆脱传统农业对自然环境的高度依赖。随着我国加入 WTO , “科技兴省”是使我省在 21 世纪取...