算法引擎与嵌入式策略组态软件设计

随着嵌入式系统和分布式控制系统的发展,策略组态软件也逐渐应用于嵌入式系统。使用算法策略组态软件,不仅可以减小系统开发时的软件工作量和开发难度,还可以提高系统的运行可靠性。基于算法引擎,提出了一种嵌入式策略组态软件设计方法;通过局域网内服务器和客户机的方式,控制策略组态软件在嵌入式系统中运行、在线监控和重新配置。实际应用表明,该方法实现了策略组态软件和嵌入式系统的结合,证明了该方法的可行性。     

组态软件中的数据库应用技术

文章以安徽林东水库大坝的自动化数据处理系统为例,详细介绍了Access数据库在MCGS组态软件中的应用技术及其实现。实际应用表明,数据库在组态软件中的合理应用可以提高系统的工作效率和系统运行的稳定性与可靠性。     

基于WINcc和PLC的污水处理提升泵优先度控制

本文介绍了德国西门子公司组态软件WINcc和S7-400PLC在污水厂提升泵站自控系统改造项目中的应用情况,叙述了提升泵控制用的组态软件WINcc和PLC程序,并对液位控制和优先度控制方法的实现作了叙述.运行结果表明,该系统设计合理,运行可靠.     

嵌入式策略组态软件设计

提出了一种基于算法引擎的嵌入式策略组态软件的设计方法,该方法设计的策略组态软件不仅提供大量的算法函数供用户使用,而且允许用户添加自定义的算法函数,其运行环境具有很高的可移植性。通过基于解释原理组态的方式,实现了该策略组态软件在嵌入式系统当中的应用,且实现了在线监控和在线修改。最后通过一个应用例子,表明了该方法的可行性。     

基于COM技术的油料自动计量控制管理系统

针对油库自动化管理的高效、安全、准确性等方面的迫切需求,利用COM技术对所采用的组态软件的结构进行了一定的抽象,提出逻辑三层结构,建立了基于COM技术的实用数据总线,实现了系统的扩展功能;把系统的所有功能均组件化,提高了系统的稳定性;结合机场油库的工作流程进行了管理软件的组态设计,实现了预定的目标;COM技术的应用为组态软件的开发提供了一种新的思路,并提供了一个可以运行的组态软件雏形。     

PCAuto在大型船舶动力监控系统中的应用

本文介绍了力控PCAuto组态软件及其在大型船舶动力监控系统中的应用.详细介绍了系统的硬件组成、软件组态过程.该系统人机界面友好、操作简单,采用先进的控制算法可以实现锅炉的自动控制,为舰船安全、稳定的运行提供了良好的保障.     

基于SpringBoot的工控组态软件Web发布系统设计与实现

随着移动互联网技术的飞速发展,Web发布系统也因其便利性成为工控组态软件的重要组成部分。了解工控组态软件Web发布系统的技术现状,针对其开发配置复杂、运行速度慢和安全性差等问题,提出了一种基于SpringBoot框架的新型工控组态软件Web发布系统。该系统应用SpringBoot框架下高效便捷的SVG、WebSocket、Hibernate等技术,在基于国产PLC系统的上位机组态软件系统中实现并得到成功应用,具有简单易扩展、响应速度快、安全稳定等特点。     

新型组态软件在火电厂吹灰系统仿真中的应用

本文主要介绍了一种新型组态软件PineCAD,阐述了基于此软件仿真开发平台的结构及基于组态软件的建模原理,介绍了其在电厂吹灰系统仿真中的应用,系统实验表明符合电厂的运行规程,与电厂给出的吹灰系统运行的历史数据一致。     

软件辅助FPGA实现安全监控系统的方法研究

核电站的安全级监控系统除了实现人机交互式的监控功能外,还需满足系统安全性的要求。目前,现场可编程门阵列(FPGA)芯片以其功能的独立性、响应的快速性以及更好的安全性,越来越广泛地应用在核电站系统中。探索一种方法——采用FPGA芯片"纯硬件"的技术代替CPU芯片,同时去除操作系统,以实现安全监控系统,从而提高系统整体的可靠性和安全性。但为了降低FPGA程序的复杂度,增加系统的灵活度,需要具有友好交互界面的组态软件来辅助FPGA实现监控系统功能。因为安全监控系统运行环境的限制,以及出于安全性的考虑,将组态软件作为离线的组态工具来设计。从安全监控系统的画面显示层组态、系统数据层组态和组态信息下装三个方面进行了详细描述,给出了组态软件辅助FPGA芯片实现安全监控系统的实现方法。该方法已完成设计开发,进一步测试与验证后,即可推广到实际应用。     

基于Linux的嵌入式组态软件中控制策略的设计与实现

基于Linux的嵌入式组态软件是嵌入式系统在工控领域中发展的要求。简要的阐述了组态软件中的控制策略,重点介绍了组态软件控制策略模块在开发环境和运行环境中的设计和实现,并给出了一种方便用户使用和扩充PID算法的函数调用接口。控制策略在组态软件中的实现使得用户对工业过程的控制和管理更加精确和方便。     

Only connect: teaching, technology and telesis

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.     

European Community policy and the market

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.     

一种自适应子融合集成多分类器方法

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。     

Avoiding semantic and temporal gaps in developing software intensive systems

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.     

Designing economic np control charts: A programmed simulation approach

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.     

The development of robot art

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     

Explanation and prediction: an architecture for default and abductive reasoning

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.     

Three Process Perspectives: Organizations, Teams, and People

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.     

基于复小波噪声方差显著修正的SAR图像去噪

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。     

基于QTE的蒙古文显示机制研究与实现

蒙古语言是中国蒙古族使用的通用语言,由于蒙古文区别于其他文字的书写方式和其自身变形机制等特点,在很多通用的文字处理引擎中都不被支持。在嵌入式产品开发与应用领域中Linux加QTE已经成为流行方式。该文给出了一种在QTE环境上实现基于标准Unicode的蒙古文点阵显示和变形算法, 并自定义了支持蒙古文的QTE组件,扩展了QTE功能,为在Linux加QTE方式的嵌入式体系结构中处理蒙古文提供了一种解决方法。