FPC2000集散控制系统的设计

针对我国发酵企业规模相对较小而控制要求较高的情况，开发了适用于发酵过程优化控制的低成本、开放型、高性价比的集散控制系统。硬件采用分层阶递的分布式结构，软件采用面向对象的模块式编程方法，创建了智能控制系统的新型结构体系，将生化过程智能控制子系统与FPC2000DCS相连接，使集散控制系统具有先进控制功能。自主研制，开发的FPC2000生化过程集散控制系统具有方便、灵活、易用、简单、可靠、高性能特点，已在十多家单位成功地推广应用。     

异丙苯塔控制系统优化设计应用研究

异丙苯塔是异丙苯生产装置的主体设备,在其传统控制方案的基础上采用先进控制策略,对异丙苯塔系统、异丙苯塔蒸汽发生器系统、异丙苯塔塔顶系统和异丙苯不合格产品罐系统等四个部分进行控制系统方案优化设计。结合当前工控领域的实际,采用集散控制系统（DCS）方案和现场总线技术完成畀丙苯生产装置先进控制方案的实施。     

基于FPC2000DCS的发酵过程智能控制系统

针对我国发酵企业规模相对较小而控制要求较高的情况，开发了适用于发酵过程优化控制的低成本、开放型、高性价比的集散控制系统。硬件采用分层阶递的分布式结构，软件采用面向对象的模块式编程方法。针对非线性、时变、大滞后的发酵过程，将智能控制技术融入传统的集散控制系统中。采用模糊控制、专家系统与常规控制相结合的技术，设计了罐温复合模糊控制系统、PH参数自调整模糊控制系统、溶氧变区域专家控制系统。控制精度与常规控制方法相比提高50％。自主研制、开发的FPC2000发酵过程集散控制系统具有方便、灵活、易用、简单、可靠、高性能的特点，已在10多家单位成功地推广应用。     

集散控制系统中先进控制与优化的应用

本文结合集散控制系统讨论了阶梯式广义预测控制和燃烧优化在工业锅炉控制中的应用。在集散控制系统常规控制回路基础上,进一步开发了集散控制系统的控制功能．采用先进控制与优化技术,提高了关键工艺参数的控制品质,对系统实现了操作优化。     

集散控制系统在烧结机中的应用

本文介绍集散控制系统在结机控制中的实际应用,利用先进的ＭＩＣＲＯＴＤＣ３０００集散控制系统,对烧结机及配套设备进行控制,运行可靠。本文通过对系统的整体配置、配料控制系统、点火燃烧控制的介绍,给出了一 种集散控制系统实际应用的设计方案。     

专家控制系统在选矿厂给矿控制中的应用

介绍以选矿厂给矿过程为控制对象，将PID、广义预测控制（GPC）同专家系统有机结合，以集散控制系统为基础，设计监督式专家控制系统，较好的解决了给矿过程控制中大量的启发逻辑问题，将先进控制策略有效地用于给矿过程控制。     

面向对象技术智能化技术与集散式控制系统数据库定义

面向对象技术、智能化技术以及集散式控制系统技术是当今计算机应用领域的三个最先进的技术，在集散式控制系统中引入面向对象技术和智能化技术，将会使工业自动化控制技术步入一个新的阶段，对工业控制自动化的应用推广具有重大的意义及价值。本文从理论上探讨了用面向对象技术以及智能化技术定义集散式控制系统数据库的方法及几个基本原则。     

史密斯预估PID控制在I／A′s集散控制系统上的应用

分布式集散系统DCS的普及与提高为先进控制的应用提供了强有力的硬件和软件平台，针对EFPT－1B复杂多容对象的加热炉出口温度大纯后特性，介绍了在I／A‘series集散控制系统上利用其接口函数进行史密斯（SMITH）预估PID控制算法研究，通过在EFPT系统上的应用，取得了很好的控制效果。     

DCS技术在粉煤制备中的应用

本文介绍了SUPCONECS-100集散控制系统在云南锡业股份有限公司冶炼厂粉煤制备工序控制系统改造中的应用，并针对该集散控制系统的结构和功能特点阐述了粉煤制备工序中的一些特殊的控制方案。     

乙烯精馏塔塔釜控制方案的改进与实施

针对乙烯精馏塔塔釜原有控制方案的缺陷,提出了以软测量技术为基础的塔釜乙烯浓度推断控制方案.对该方案所要求的乙烯浓度估计器,从辅助变量的选取、输入输出变量的处理、软测量模型结构等方面作了介绍.同时详细阐述了如何在TDC3000型集散控制系统内实施该先进控制方案.从实际投用情况来看,该方案稳定了塔釜乙烯浓度,降低了再沸器的热负荷和精馏塔的操作能耗,有着显著的经济效益.     

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。