基于神经网络电机速度控制器的SOPC系统

针对机器人伺服控制系统高速度、高精度的要求,介绍一种全数字化的基于神经网络控制的直流电机速度伺服控制系统的设计方案。速度控制器采用BP网络参数辨识自适应控制,并将其在FPGA进行硬件实现;同时用NiosⅡ软核处理器作为上位机,构成一个完整的速度伺服控制器的片上可编程系统（SOPC）。实验结果表明,该控制系统具有较高的控制精度、较好的稳定性和灵活性。     

高速启停纺织专用细纱机伺服控制系统设计

提高伺服控制系统速度的变化率可以提高纺织细纱机的生产效率，用一台PLC控制两组伺服驱动电机，两台电机启停时间错开，通过机械装置合成可使速度变化率达500次／min；系统采用速度反馈控制，利用RS－232与上位机通讯以实现参数的设置和监控，详细介绍了基于PLC纺织细纱机伺服控制系统的硬件原理和软件设计方法，实际运行结果表明；该系统设计合理，工作可靠，满足了纺织细纱机生产的需要。     

基于DSP的1394总线在伺服控制系统中的应用

介绍1EEE 1394总线在伺服控制系统中的应用。设计1394前端通信模块,通过其中的DSP来控制IEEE 1394芯片,实现数控系统与伺服单元的IEEE 1394高速总线接口。给出1394前端通信模块的软硬件设计。1394前端通信模块与上位机及运动控制器的通信测试实验证明了IEEE 1394总线技术应用于伺服控制系统中的可行性。     

基于IPC与运动控制卡的机器人运动控制系统

工控机(IPC)和运动控制卡组成的开放式机器人控制系统,具有可靠性高、信息处理能力强、开放程度高、运动轨迹准确等优点,利用其来进行六自由度关节机器人的运动控制系统的开发.IPC实现上位机功能,完成人机交互、运动学运算等任务.下位机采用PMAC运动控制卡,对各关节电机进行伺服控制.上位机基于Visual C++编程,通过调用PMAC的动态链接库编写上位机人机界面实现对PMAC卡的控制,另外介绍了伺服驱动器的设置以及PMAC的PID调节.实践证明这套系统工作可靠,完全满足要求.     

农业机器人并联采摘臂视觉伺服控制

介绍了一种基于视觉伺服的农业机器人并联采摘系统,该系统由视觉系统、上位机、下位机、并联机构等4部分组成.视觉系统采集目标图像并传递给上位机,上位机对图像进行处理,识别和定位目标,计算并联机构的运动控制量,通过串口通信发送给下位机,下位机接收到控制量后,根据运动控制量驱动继电器模块作相应的开关动作,完成并联采摘臂的控制.实验证明:该系统对于实现农业机器人采摘作业具有可行性.     

32路伺服舵机控制器

TIPS:32路伺服舵机控制器是一种微伺服舵机控制器,可以控制多达32个伺服舵机协调动作的软硬件结合系统,它不但能实现位置控制和速度控制,还具有时间延时断点发送指令功能.其主要由上位机软件和伺服舵机驱动控制器组成.通过PC机操作上位机软件给控制器传递控制指令信号,就可以实现多路伺服舵机的单独控制或同时控制.     

一种面向医院的输液监控系统的设计

介绍了一种由AT89051单片机构成的医院输液监控系统。本系统包括上位机（PC机）和下位机（AT89C51单片机）。本文对系统如何实现自动检测、自动报警等功能做了详细的分析与研究,利用光电传感器采集点滴的有无,用AT89051作为中央处理器进行信号分析与处理,用RS一485实现上位机（PC机）和下位机（单片机）的通信,用PC机作为上位机对下位机进行控制。     

基于C8051F单片机的液压智能PID控制系统设计和研究

以液压伺服控制系统为对象,设计了一种基于C8051F单片机的液压伺服智能PID控制系统。伺服控制系统具有控制、数据采集和通讯等功能,可以实现伺服系统的位移、载荷和应变三参量控制,控制系统通过RS232与上位机进行交换数据,从而实现系统的控制和监测。     

基于PC的水下作业控制系统的研究

本文研究设计了一种基于PC机与单片机的水下作业控制系统.本控制系统采用的是PC机与单片机串行通讯的方式,来实现对自动工具库的可视化控制.在对本计算机控制系统进行介绍时,首先介绍了整个下位机系统的硬件电路,包括电磁阀驱动电路、伺服阀驱动电路和串行通讯电路等.并且简介了串行通讯的相关内容.在此基础上介绍了其控制程序和上位机的控制软件的编制.     

异步伺服驱动的直角坐标机械手控制系统设计与实现

本文介绍了一种工业取料机械手的控制策略及系统结构。系统采用集散控制策略，以工业控制计算机为上位机，专用交流异步电机伺服控制器为下位机，系统软件采用C 语言设计。系统结构紧凑，易于用户操作，具有较好的市场前景。     

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。     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

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.     

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。     

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.     

基于AD9626的模拟信号采集存储卡设计

自然界的绝大部分信号都是以模拟的形式存在,因此模拟信号的采集转换存储在数字时代十分关键。文章讨论了在雷达信号处理领域基于AD9626的AD采集存储卡的设计原理、硬件结构和程序设计与芯片配置等问题,为今后相关领域的研究提供了可参考的方案。     

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     

A human-computer interface for non-computer specialists

The COM teleconferencing system was designed to be easy to use for both beginners and people with much computer experience. A number of design choices in organizing the human-computer interface were considered very carefully. These design problems are not unique for teleconferencing applications, but will appear in many other developments of human-computer interfaces for non-computer specialists. This report discusses naming conventions, menu format, user commands, help facility and the treatment of ‘type ahead’ from the users.