按摩机械手分布式控制系统的研究与设计

通过对按摩机械手装置及其控制系统的研究,设计一套基于CAN总线的两级分布式控制系统,阐述了系统的硬、软件结构组成.该系统使得按摩机械手实现数字化、开放式、分布式控制.在实际应用中提高了腰椎病的治愈率,并降低医护者的工作量.     

可编程序控制器(PC)及其在工业上的应用

<正> 一、PC控制系统的初步设计1.被控过程的描述过程控制系统的设计是根据被控过程的工艺流程特点和要求,选用适当的控制装置组成满足特定应用场合需要的控制系统来实现生产过程的实时控制。因而,在熟悉工艺流程特点和明了控制任务要求的基础上,设计一个PC控制系统的首要任务是详细罗列该控制系统的全部功能和要求,其中包括系统方框图组成的描述,PC及其I/O与被控过程及其他控制器或     

基于PLC的火电厂湿法FGD装置自动控制系统设计

针对FGD装置控制系统复杂、故障率高等问题,提出了一种基于PLC的火电厂湿法FGD装置自动控制系统的设计方案,详细介绍了系统硬件组成及其工艺控制过程,并给出了系统软件设计。实际应用表明,该系统稳定可靠,脱硫效率在92%以上,符合设计要求。     

多自由度运动计算机控制系统的设计

本文介绍了由计算机对步进电机控制从而实现多自由度运动的系统的设计.同时详细介绍了系统中的结构组成、软件的应用和步进电机的控制.该控制系统操作界面友好、简单,动态响应快,系统精度高.     

基于PLC多功能锅炉燃烧器控制系统设计

介绍了一种为满足安全生产而设计的具有自动防护功能的多功能燃烧器控制系统及其应用.文中阐述了该燃烧系统的组成和详细配置.介绍了实现的功能、方法.系统采用PLC作为控制核心,以人机界面作为监视和控制中心,实现燃烧过程、安全检测和危险防范的自动化,避免了人工操作方式的弊端.由PLC自带的PlD模块,变频器,燃料控制阀组和在线监测传感器组成的闭环控制系统,在保证安全的前提下,可实现燃油、燃气及混合燃烧的精确控制.     

集散式多轴拧紧机控制系统的设计应用

介绍了集散式多轴拧紧机控制系统的设计原理及其在汽车工业网络制造管理中的应用.该集散式控制系统由三级控制体系和两层网络结构组成,实现了企业在螺栓拧紧部分的生产、控制和管理的集成,提高了汽车工业网络制造管理水平.     

PLC在热电站燃料准备系统中的应用

本文阐述了热电站燃料准备系统中皮带运输机的电气控制系统及其主要特点,PLC控制的硬件组成和软件控制的设计方法,从硬件和软件两方面,介绍了PLC在工业控制系统中的应用。     

双组元姿控发动机试验高精度时序控制系统研制

介绍了双组元姿控发动机上被控对象单稳电磁阀的工作特性及其对发动机工作时序的影响,较详细地阐述了控制系统的指标、组成和工作原理,重点介绍了控制系统对发动机试验工况控制和高精度时序控制功能的实现.该系统经过多次发动机试验应用,效果良好.     

青海油田油井水泥干混装置计算机控制系统

较为详细地介绍了一个由S7-PLC和工业PC组成的油井水泥干混装置监测、控制系统及其软、硬件的设计与实现.该系统是一个典型的由PLC完成控制功能、工业PC完成监视与人机交互任务的小型分型式控制系统.     

基于单片机的划线冲点一体机控制系统设计

针对一体机划线、冲点等功能的需要,结合该控制系统的组成、硬件电路的设计及控制流程,设计了单片机控制下的自动化控制系统。该系统总的生产制造成本低,在实际应用中效果良好,大大提高了生产的划线冲点效率。     

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。