TMS320F2812 DSP与PC104串口通信的设计

介绍了运用TMS320F2812的SCI模块以及调用VC++6.0中的MSComm控件实现TMS320F2812 DSP与PC机串口通信的方法.在自行研究设计的基于TMS320F2812的轮式移动机器人平台上,通过串口通信软硬件的设计,实现了移动机器人中心处理器PC104与底层运动控制器DSP之间控制信息及速度数据的准确收发.     

基于DSP的半自主移动机器人远程控制系统

介绍自行开发的半自主远程控制移动机器人系统的软硬件设计方案。以TI公司TMS320LF2407A型号的DSP芯片为机器人小车控制器核心,重点阐述系统定位模块、图像采集模块及无线数据传输模块等,并给出PC机和DSP之间的数据传输协议以及实验结果。     

TMS320C54x代码在OMAP5910上的实现

TMS320C54xDSP已经得到了广泛应用。为了充分利用TMS320C54xDSP上的软件开发成果,节省开发成本,需要将TMS320C54x的程序移植到OMAP5910平台的TMS320C55xDSP上运行。介绍了利用MASM55对代码进行重新编译、对不能移植的代码进行手工修改、重新编写系统级代码等方法成功地实现了从TMS320C54x到TMS320C55x的代码移植,正确地实现了程序的功能。充分利用TMS320C55x新增特征,对部分运算量大的函数进行手工代码优化,大幅度地降低了程序的运算量,提高了代码的执行效率和性能。     

基于智能路径规划算法的移动机器人系统设计

提出了移动机器人的一种全局路径规划与局部路径规划相结合的新型算法.在以TMS320LS2407A为核心处理器设计的移动机器人平台上,研究移动机器人智能路径规划的算法问题并予以实现.上位机规划机器人的最优路径,并通过与机器人无线通信,发送路径信息,实时接收机器人方位信息.上位机通过操作应用程序对机器人进行监控.机器人能够自主计算轨迹并准确跟踪路径,检测到障碍物后,智能地重新规划路径,避开障碍物到达目的地.实验结果表明:该方法能有效实现机器人的最佳行走路线规划.     

TMS320C5402与TLV320AIC23在语音信号处理系统中的接口设计

介绍了TMS320C5402与TLV320AIC23芯片的功能特性,分析了语音信号处理系统中TMS320VC5402与TLV320AIC23的硬件接口设计,给出了TMS320VC5402与TLV320AIC23的硬件接口电路与相关接口配置。     

基于微硅陀螺仪的移动机器人的导航系统设计

本文介绍了基于微硅陀螺仪的移动机器人全场定位系统的设计。首先论述了机器人全场定位原理,然后采用TMS320F2812 DSP控制芯片和CRS03微硅陀螺,利用信号调理电路提取有用信号,通过软件数字滤波并处理陀螺数据,最后完成对移动机器人方位的确定。     

TMS320C240 DSP与MAX7219的接口及编程应用

简要介绍了TMS320C240 DSP与MAX7219的连接以及MAX7219的功能，讨论了TMS320C240 DSP与MAX7219的时序配合问题，针对这个问题进行了分析和实验研究。     

基于DSP的移动机器人的设计与实现

智能交通系统是21世纪城市交通的发展方向,移动机器人作为智能车辆控制系统实验平台的一个主要部分,对智能交通系统的关键技术的研究具有十分重要的意义。介绍了面向智能交通系统的SJTNC-1移动机器人的组成和结构,并详细叙述了基于数字信号处理器TMS320LF2407A的控制系统的设计和实现。     

MiroSot足球机器人电机驱动系统设计

为了满足Miro Sot足球机器人体积小、机动性好、抗干扰性强等要求,设计了一套两轮差速驱动转向移动机器人电机驱动系统。以DSP-TMS320LF2407A为核心器件,采用脉宽调制(PWM)方式进行调速。采用双H桥驱动器L298驱动直流电机,实现对左右两组车轮的两个直流电机的驱动调速控制。作为专用于电动机控制的数字信号处理器(DSP)芯片TMS320LF2407A,其丰富的外设功能简化了电机控制电路,使电路结构更趋紧凑合理。DSP芯片使得足球机器人的电机速度采样周期缩短、采样精度更大。试验表明,该系统提高了机器人的硬件集成度、稳定性能以及控制精度,改善了机器人的运动性能,也为直流电机在移动机器人及其他场合的驱动应用提供参考。     

基于运动控制芯片MCX314As的多轴运动控制器的设计

以TMS320LF2407A和MCX314As运动控制芯片为核心硬件，自主研发了基于TMS320LF2407A和MCX314As的多轴运动控制器，该控制器能够实现4轴位置、速度和S曲线的加减速控制，MCX314AS的所有功能都是通过特定的寄存器控制的，通过寄存器对4个运动轴进行参数化控制，实现任意3轴直线插补、任意两轴圆弧插补、任意3轴位元模式插补。     

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     

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.     

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。