LANZHOU UNIVERSITY OF TECHNOLOGY
毕业设计
学生姓名 马海祥
学 号 ********
wifi室内定位
专业班级 流程工业在线 08级自动化（2）班
指导教师 王志文
弯曲弹簧学 院 电气工程与信息工程学院
答辩日期
摘 要
进入21世纪以后，我国温室种植技术得到了迅速的发展。以反季节蔬菜种植为主的温室大棚种植对科学技术的依赖有了更高的要求，温室大棚成为种植植物必不可少的设施之一。温室大棚的自动控制系统就是利用科学技术对温室大棚内的环境参数（包括温度、湿度、光照以及二氧化碳浓度等）进行控制，使植物能够更好更快的生长。温室种植有利于提高农作物的质量和产量，创造更多的经济效益。 本次温室大棚自动控制系统的设计是采用西门子公司S7-200型号的PLC为核心来完成的。控制系统由PLC、传感器、执行机构等组成。根据植物生长的最佳环境条件编制出温室大
棚植物生长最佳环境管理程序表，储存在电子计算机的记忆装置中，电子计算机及根据程序表确认温室内参数，并给终端控制系统指令。传感器向PLC输送监测的环境参数信息，根据PLC的指令输出来控制执行机构，使温室内的环境参数达到植物生长最佳环境。
关键字： 温室; 传感器; 环境参数; 可编程控制器;
Abstract
Along with get into 21 century, usb视频设备the development of greenhouse is very fast in our country. Greenhouse is dependence on the higher requirement of science and technology. 竹炭颗粒Greenhouse is growing plants one of the necessary facilities. Greenhouse of the automatic control system is the use of science and technology in the greenhouse environment parameters (including temperature, humidity, light and carbon dioxide concentration, soon)control ,and make plant can be better and faster growth. It is to raise the quality and yield of crops, and create more economic benefit.
The greenhouse design of an automatic control system电子蜂毒采集器 be used Siemens S7-200 PLC to finish. Control system by PLC, sensor, actuating mechanism etc. According to the growth of a plant optimal environment conditions had compiled for greenhouse plants grow best environment management program table stored in compute. The compute is according to the table send instructions of control system. The sensor is to transport the environmental parameters of PLC monitoring information, according to the instructions of the PLC to control the actuating mechanism, and make the environmental is to plant growth optimal in the greenhouse.
Key Words: Greenhouse; Sensor; Environment Parameters; Programmable Logic Controller;
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