【作者】 张海龙；

【导师】 韩慧莲；

【作者基本信息】 中北大学 ， 通信与信息系统， 2007， 硕士

【摘要】 随着科学技术的不断发展,人们对测量技术的要求越来越高。传统的电子测量仪器已经很难满足实际测量工作中普遍发展的需要。将计算机技术、传感器技术、网络技术、数据库技术与测试技术的有机结合,组建网络化、集成化、分布式的测试系统,已成为现代测试领域极其重要的研究课题。本文首先介绍了课题的研究背景及意义,分布式测试系统、虚拟仪器的历史、现状及发展趋势,简要介绍了分布式测试系统的模型,利用.NET、数据库、虚拟仪器等技术对分布式测试网站管理子系统和虚拟仪器测试子系统的各个模块进行了详细的分析和设计。在确定系统总体设计思想的基础上,对网站管理子系统进行了需求分析,确定了系统不同角色的主要功能,确定了系统的总体方案和系统的功能结构,对系统的关键性模块从设计界面、设计思路、编码等方面进行了详细地分析和设计。在虚拟仪器测试系统的设计实现中,通过正确的设置通道数据组织形式、LabVIEW多线程技术、LabSQL软件等方法解决了虚拟仪器的多通道数据采集、多通道数据传输、将测试数据实时的写入数据库等技术问题。系统运行和测试的结果表明:基于Internet的分布式测试系统不仅可以实现远程的数据测试,而且可以实现多用户、多布点的分布式测试管理。更多还原

【Abstract】 With the development of science and technology, people put forward more and more demands with the measurement technology. Traditional electronic equipments can’t meet the common needs of actual measurement work. It is an important research theme of modern Distributed Measurement System (DMS) that we combine computer technology, sensor technology, net technology, database technology with measurement technology, so that we can build net, integrated, distributed measurement system.This dissertation starts with the research background and significance of the theme, the history, domestic and international developments of DMS and Virtual Instrument, briefly introduce the model of the DMS, analyze and design each module of DMS web-site management sub-system and Virtual Instrument measurement subsystem in detail by using .NET, DBS, virtual instrument etc. technologies.Based on the idea of general design, the theme starts to make the requirements analysis in order to get the functions of different roles, get the general realization scheme and functional architecture of the system, analyze and discuss each modal from design interface, design step and code in detail. In the realization of Virtual Instrument measurement system, I solve the problems such as multi-channels data sample, multi-channels data transportation, put the measurement data into the Database etc by ways of correctly setting the data organization of multi-channels, LabVIEW multi-threads technology, LabSQL software.The running and test results tell us: DMS based on Internet not only relize remote test but also relize distributed measurement management.更多还原