基于VxWorks的RapidIO-IP设计与实现

在研究RapidIO互连标准和TCP/IP协议的基础上,设计RapidIO-IP架构,分析VxWorks操作系统中END的工作原理和SBC8641D平台上RapidIO总线的工作机制,对基于RapidIO的END驱动需要实现的几个关键技术进行攻克,成功实现了RapidIO-IP,为RapidIO协议在嵌入式系统中的应用奠定了基础。     

VxWorks下基于S3C451OB芯片的END型网络驱动设计

VxWorks下增强型网络驱动是一个链路层驱动程序．它通过MUX层函数与网络协议层进行通信。给出了基于S3C4510B芯片和VxWorks操作系统的嵌入式网络硬件设计．分析了VxWorks操作系统下增强型网络驱动的结构原理以及描述了详尽的增强型网络驱动具体实现、对同类开发有一定的参考意义。     

基于END驱动IP层转发能力的提升方法

论文基于Tornado2.2开发环境提供的TCP/IP协议栈和END驱动模板,阐述了基于END驱动IP层转发能力提升的几个方法,并在MPC8260以太网平台中得到了验证。     

VxWorks实时操作系统下END的实现

介绍了VxWorks实时操作系统END(EnhancedNetworkDrivers)的程序框架设计,给出了END的实现,实验证实该END通过Mux层在Ip层与链路层之间建立了数据传输通道。     

宽带多功能网络接入设备的设计与实现

介绍了一种宽带多功能网络接入设备.着重讨论了该设备中实现的POS、以太网业务的AAL5适配、地址自学习和网络桥接等关键技术,阐述了在嵌入式实时多任务操作系统VxWorks环境下,网络接入设备驱动程序的设计与实现.     

基于VxWorks的网卡驱动设计

随着嵌入式技术在军工、信息中的应用,如何在嵌入式实时系统下对网卡进行驱动程序的设计以及实现网络通信和管理,成为非常重要的技术。首先从整体上介绍VxWorks网络系统的基本原理和结构,然后以RT8185L网卡驱动为例,着重设计了网络设备驱动程序设计与实现过程。本文对所有基于MUX机制下的VxWorks网络设备驱动程序开发者具有参考价值。     

基于MUX接口的嵌入式网络应用程序设计

针对风河公司的嵌入式实时操作系统（VxWorks）的网络驱动及应用程序开发设计,介绍了VxWorks的增强型网络驱动程序（END）及其结构,对工作在END和网络协议层之间的多元接口层（Mux）的工作原理和程序设计框架进行了详细论述,并结合在VxWorks系统下发送UDP广播包的实例,给出了基于MUX接口的嵌入式网络应用程序设计流程,对所有基于MUX机制下的VxWorks网络应用程序的开发具有参考价值。     

END随机序列滑动平均的若干极限定理

利用条件E（exp{t｜X1｜1p}）〈$,（p〉1）,证明END随机序列滑动平均的极限定理,给出形如（logn）-p n＋（logn）p ∑k=n＋1 Xk的滑动平均的上下界,得到了经典强大数定律。     

Finite element modelling: a solution to seam end cracking?

Abstract

Seam end cracking has been a common feature of many single sided seam welding installations. The crack tends to be located about 140 mm in from the plate end, but this distance has been found to be related to plate thickness. In addition, the longer cracks tend to be more prevalent in thicker plates. The incidence of cracking in this particular case was typically 38%, which incurred significant inspection and rectification costs. The present study presents a detailed FEM study of a slot run-off plate configuration that was carried out using a thermo-mechanical model. The outcome of this investigation was that the run-off plate slot angle had an effect on the potential for cracking but the slot width did not. When the slot run-off plate was used in practice, over a wide range in thickness, the transverse cracking was eliminated.     

Line Segment-Based Indoor Mapping with Salient Line Feature Extraction

We present a method of simultaneous localization and mapping (SLAM) in a large indoor environment using a Rao-Blackwellized particle filter (RBPF) along with a line segment as a landmark. To represent the environment in a compact form, we use only two end points of a line segment, thus reducing computational cost in modeling line segment uncertainty. With a modified scan point clustering method, the proposed adaptive iterative end point fitting contributes to the estimation of line parameters by considering noisy scan points near end points. Thus, by line segment matching the robot is localized well in a local frame. We also introduce an online and offline method of global line merging, which provides a more compact map by removing spurious lines and merging collinear lines. Each of our approaches is efficiently integrated into the proposed RBPF-SLAM framework. In experiments with well-known data sets, the proposed method provides reliable SLAM and compact map representation even in a cluttered environment.