基于PLC的温室大棚控制系统设计.doc

山东科技大学泰山科技学院
本科毕业设计论文
题目：基于PLC的温室大棚控制系统设计
系部名称：机电工程系
班级名称：电气工程及其自动化
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完成日期：2016年6月6日
摘要
温室大棚是用来栽培农作物设施，它能变化农作物生长环境，使其可以外界四季变化和恶劣气候，为农作物生长创造适当条件。温室大棚作为高效农业重要构成某些，已经成为咱们研究方向。如何运用科学技术控制温室内各种环境因子，已成为国内温室大棚行业研究重要课题之一。
本论文重要简介了基于PLC控制温室大棚系统设计方案，该研究中将采用温度传感器、CO２浓度传感器、光照传感器对温室大棚中各项指标进行检测，将测量值送入PLC中，在PLC中将其与设定值进行比较，再发出相应指令驱动外围设备来调控温室大棚内环境参数，从而实现了温室大棚自动化、智能化控制。在此基本上，实现监测、数据记录、数据输出显示等功能，实现了控制系统优良人机界面，为温室大棚研究提供新方向。
核心词：温室大棚；可编程控制器（PLC）；传感器；控制；
ABSTRACT
Greenhouses are used for growing plants in a range of facilities，it can change the crop growing environment，enabling it to the outside of four seasons and harsh climate，creating suitable conditions for crop growth. Greenhouses as important component of agriculture，has become our research directions. How to use science and technology to control environmental factors within the greenhouse，greenhouse industry has become an important subject of study.
Described in this paper，based on Siemens S7-200 series PLC control system design of greenhouseThe research will be used temperature sensor，andCO2 concentration sensor，and light sensor on greenhouse big shed in the the index for detection，will measurement value into PLC in the，in PLC will be its and set value for compared，again issued corresponding of instruction drive peripheral equipment to Regulation greenhouse big shed within of environment parameter，to achieved has greenhouse big shed of automation，and intelligent of control. On this basis，using configuration software configuration design of control systems，monitoring，data logging，data output function，achieving excellent control system human-machine interface，for greenhouse research to provide new direction.
Keywords：greenhouse；programmable logic controllers(PLC)；sensor；control;application.
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