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毕业设计论文

基于虚拟仪器的温室环境自动检测系统设计

摘 要

设施农业是现代化农业的一个重要组成部分。由于我国的温室业起步晚，发展时间短，造成我国温室技术水平比较低，现代化管理程度不高。因此，迫切需要在技术上进一步提高。 随着设施农业向着集约化、规模化方向的发展和温室管理智能化要求的提高，温室检测系统实现远程通信进而实现温室内生产与管理的一体化，是现代智能温室发展的必然趋势。

本系统利用虚拟仪器技术在LabVIEW的平台上开发了一套温室环境自动检测系统。 论文主要的研究内容包括：第一，温室检测参数的选择，主要针对温室环境中影响作物生长的参数，如温度、湿度、光照强度和CO2浓度等。并选择相应的传感器作为检测系统的硬件部分，对温室内环境参数进行采集。 第二，比较了虚拟仪器相对于传统仪器的优势，将计算机技术、虚拟仪器技术有机结合，进行温室环境自动检测系统的软件设计。第三，在虚拟仪器的平台上，应用LabVIEW软件编程对数据进行采集、显示、存储与回放。

关键词：温室；检测；LabVIEW；虚拟仪器

The Automatic Detection System Design of Greenhouse

Environment based on Virtual Instrument

Abstract

Agricultural facilities are important part of modern agriculture. In China, because we start to develop it lately, the level of greenhouse technology and modern management level is relatively low. It is urgent need for us to further improve the technology. Now the developing of agricultural facilities are forward to the direction of intensification and scale and the requirements of intelligent of greenhouse management is rising step by step. Greenhouse detection system achieve long-range communications. The integration of production and management in greenhouse is an inevitable developmental trend of modern intelligent greenhouse.

This design uses virtual instruments on the platform of LabVIEW to develop a software of greenhouse environment automatic detection system. The main content of research includes three parts. First, it can be used to select the greenhouse environmental parameters, such as temperature, humidity, light and CO2 concentration, and select the appropriate sensors as part of the hardware detection system on the basis of the parameters. Second, it can show the advantages of virtual instruments in relation to traditional instruments. It combines computer technology with virtual instrumentation and designs the system software of greenhouse automatic detection. Third, on the platform of virtual instrument, LabVIEW software can be used to collect dates and show them on a computer. It also can store and recall dates of greenhouse environment.

Key words: greenhouse environment; detect; LabVIEW; virtual instrument