共查询到20条相似文献,搜索用时 62 毫秒
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工控软件"组态王"的数据处理和Excel报表自动生成程序设计 总被引:8,自引:1,他引:8
“组态王”是一个工业自动化通用软件包,本文主要讨论了将“组态王”的历史数据库转换成通用的Access数据库以及生成Excel格式的报表的方法,不仅解决了“组态王”数据采集密集和保存时间要占用大量磁盘空间,数据库格式复杂且不通用等问题,而且生成的Excel报表清晰,直观,可不经任何处理直接打印。 相似文献
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基于组态王和PLC的流体粘度测量系统 总被引:1,自引:0,他引:1
介绍了一种新的流体粘度的测量方法,即基于组态王、PLC和MATLAB的流体粘度测量系统.首先简述了系统的基本结构和工作原理,然后分别介绍了系统是如何进行数据采集和处理的,主要包括应用PLC编写数据采集的程序,应用组态王建立上位机监控画面,以及将采集到的数据导入MATLAB并进行处理,最终确立流体的粘度模型,得到流体的粘度值. 相似文献
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介绍了回转窑各区域温度与其尾气中氧含量的数据采集和在线监测系统的集成。给出了监测系统的方案设计、硬件架构以及组态王监测软件的实现方案,并对其中的技术难点(如:定义组态王串口设备方法、定义组态王DDE设备方法)做了较为详细的阐述。实际应用情况表明,系统稳定,达到了使用要求。 相似文献
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本文介绍了采用“组态王”软件与单片机技术结合设计的水厂监控系统的构成原理,硬件和软件的设计思想,系统实现的主要功能,系统的设计特点,“组态王”和终端机通讯程序设计中,“组态王”开发环境下具体的设置方法,通讯协议格式说明,以及终端机程序的流程图和设计内容。 相似文献
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德士古水煤浆气化炉炉温监控系统的开发 总被引:1,自引:2,他引:1
介绍了基于DeltaV、组态王等多种监控软件混用的德士古水煤浆气化炉炉温监控系统。首先利用DeltaV提供的Excel-Addin接口软件将下位机DeltaV系统采集的实时数据放在Excel中;然后采用NetDDE连接技术实现VB对Excel的数据访问,并用VB编写数据采集以及炉温软测量程序。最后通过组态王提供的DDE实现VB和组态王的数据交换,运用组态王开发炉温监控系统操作界面,实现对炉温的实时软测量。 相似文献
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S. Shaw 《Journal of Computer Assisted Learning》1993,9(2):93-99
Abstract This paper describes an approach to the design of interactive multimedia materials being developed in a European Community project. The developmental process is seen as a dialogue between technologists and teachers. This dialogue is often problematic because of the differences in training, experience and culture between them. Conditions needed for fruitful dialogue are described and the generic model for learning design used in the project is explained. 相似文献
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European Community policy and the market 总被引:1,自引:0,他引:1
C. Lloyd 《Journal of Computer Assisted Learning》1993,9(2):86-91
Abstract This paper starts with some reflections on the policy considerations and priorities which are shaping European Commission (EC) research programmes. Then it attempts to position the current projects which seek to capitalise on information and communications technologies for learning in relation to these priorities and the apparent realities of the marketplace. It concludes that while there are grounds to be optimistic about the contribution EC programmes can make to the efficiency and standard of education and training, they are still too technology driven. 相似文献
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融合集成方法已经广泛应用在模式识别领域,然而一些基分类器实时性能稳定性较差,导致多分类器融合性能差,针对上述问题本文提出了一种新的基于多分类器的子融合集成分类器系统。该方法考虑在度量层融合层次之上通过对各类基多分类器进行动态选择,票数最多的类别作为融合系统中对特征向量识别的类别,构成一种新的自适应子融合集成分类器方法。实验表明,该方法比传统的分类器以及分类融合方法识别准确率明显更高,具有更好的鲁棒性。 相似文献
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Wayne O’Brien Author Vitae 《Journal of Systems and Software》2008,81(11):1997-2013
Development of software intensive systems (systems) in practice involves a series of self-contained phases for the lifecycle of a system. Semantic and temporal gaps, which occur among phases and among developer disciplines within and across phases, hinder the ongoing development of a system because of the interdependencies among phases and among disciplines. Such gaps are magnified among systems that are developed at different times by different development teams, which may limit reuse of artifacts of systems development and interoperability among the systems. This article discusses such gaps and a systems development process for avoiding them. 相似文献
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This paper presents control charts models and the necessary simulation software for the location of economic values of the control parameters. The simulation program is written in FORTRAN, requires only 10K of main storage, and can run on most mini and micro computers. Two models are presented - one describes the process when it is operating at full capacity and the other when the process is operating under capacity. The models allow the product quality to deteriorate to a further level before an existing out-of-control state is detected, and they can also be used in situations where no prior knowledge exists of the out-of-control causes and the resulting proportion defectives. 相似文献
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Going through a few examples of robot artists who are recognized worldwide, we try to analyze the deepest meaning of what
is called “robot art” and the related art field definition. We also try to highlight its well-marked borders, such as kinetic
sculptures, kinetic art, cyber art, and cyberpunk. A brief excursion into the importance of the context, the message, and
its semiotics is also provided, case by case, together with a few hints on the history of this discipline in the light of
an artistic perspective. Therefore, the aim of this article is to try to summarize the main characteristics that might classify
robot art as a unique and innovative discipline, and to track down some of the principles by which a robotic artifact can
or cannot be considered an art piece in terms of social, cultural, and strictly artistic interest.
This work was presented in part at the 13th International Symposium on Artificial Life and Robotics, Oita, Japan, January
31–February 2, 2008 相似文献
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David Poole 《Computational Intelligence》1989,5(2):97-110
Although there are many arguments that logic is an appropriate tool for artificial intelligence, there has been a perceived problem with the monotonicity of classical logic. This paper elaborates on the idea that reasoning should be viewed as theory formation where logic tells us the consequences of our assumptions. The two activities of predicting what is expected to be true and explaining observations are considered in a simple theory formation framework. Properties of each activity are discussed, along with a number of proposals as to what should be predicted or accepted as reasonable explanations. An architecture is proposed to combine explanation and prediction into one coherent framework. Algorithms used to implement the system as well as examples from a running implementation are given. 相似文献
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Watts S. Humphrey 《Annals of Software Engineering》2002,14(1-4):39-72
This paper provides the author's personal views and perspectives on software process improvement. Starting with his first work on technology assessment in IBM over 20 years ago, Watts Humphrey describes the process improvement work he has been directly involved in. This includes the development of the early process assessment methods, the original design of the CMM, and the introduction of the Personal Software Process (PSP)SM and Team Software Process (TSP){SM}. In addition to describing the original motivation for this work, the author also reviews many of the problems he and his associates encountered and why they solved them the way they did. He also comments on the outstanding issues and likely directions for future work. Finally, this work has built on the experiences and contributions of many people. Mr. Humphrey only describes work that he was personally involved in and he names many of the key contributors. However, so many people have been involved in this work that a full list of the important participants would be impractical. 相似文献
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基于复小波噪声方差显著修正的SAR图像去噪 总被引:4,自引:1,他引:3
提出了一种基于复小波域统计建模与噪声方差估计显著性修正相结合的合成孔径雷达(Synthetic Aperture Radar,SAR)图像斑点噪声滤波方法。该方法首先通过对数变换将乘性噪声模型转化为加性噪声模型,然后对变换后的图像进行双树复小波变换(Dualtree Complex Wavelet Transform,DCWT),并对复数小波系数的统计分布进行建模。在此先验分布的基础上,通过运用贝叶斯估计方法从含噪系数中恢复原始系数,达到滤除噪声的目的。实验结果表明该方法在去除噪声的同时保留了图像的细节信息,取得了很好的降噪效果。 相似文献