基于ARM的嵌入式服务机器人控制器的研究

服务机器人控制系统是机器人的神经中枢,它决定机器人能否按照用户要求顺利完成相应工作任务.这里提出一种基于ARM和μC/OS-Ⅱ的服务机器人控制系统,给出嵌入式服务机器人控制器的整体结构设计、功能设计和 主控制器模块.在此基础上采用结构化设计方法,设计基于μC/OS-Ⅱ的服务机器人控制软件结构.该控制系统除具有模块化、体积小、功耗低、实时性强、可靠性高等优点外.经简单硬件调整和软件定制,能适用于不同类型的服务机器人,是服务机器人智能化发展的基础性研究.     

NT技术的航标灯——介绍最新IDG版NT技术参考书

随着网络计算环境的发展,网络技术成为计算机技术发展的主流。Microsoft Windows NT作为一个优秀的网络操作系统平台,被称为未来的操作系统。为了配合计算机网络技术在我国的发展和应用,电子工业出版社最新推出《傻瓜Windows NT 4.0》、《傻瓜WindowsNT联网》和《傻瓜必读:Windows NT》。 《傻瓜Windows NT 4》 Windows NT 4与Windows NT 3.5相比有很大的改进,是与Windows 95对应且更有新意的Win-dows网络版。本书共分25章,主要内容包括:用户机器     

智能移动人脸辨识系统——跟我走机器人

本文以发展具有人脸辨识和运动跟踪功能的智能机器人为目标.机器人的名称为"跟我走机器人".它能够根据人脸辨识的结果,判断用户的身份,并跟随该用户.系统的开发建基于英特尔XScale PXA270微处理器平台、Linux操作系统和QT/Embedded图形使用者接口.为了建构一个智能机器人,我们在系统上加入了基于弹性图匹配(EBGM)的人脸辨识程序,运用了块匹配算法的运动跟踪功能.系统提供了简易的用户介面,方便管理和下达指令."跟我走机器人"除了应用于娱乐外,亦可胜任各种工业应用.     

基于ARM的嵌入式服务机器人控制器的研究

服务机器人控制系统是机器人的神经中枢,它决定机器人能否按照用户要求顺利完成相应工作任务。这里提出一种基于ARM和μC／OS-Ⅱ的服务机器人控制系统,给出嵌入式服务机器人控制器的整体结构设计、功能设计和主控制器模块。在此基础上采用结构化设计方法,设计基于μC／OS-Ⅱ的服务机器人控制软件结构。该控制系统除具有模块化、体积小、功耗低、实时性强、可靠性高等优点外,经简单硬件调整和软件定制,能适用于不同类型的服务机器人．是服务机器人智能化发展的基础性研究。     

基于STM32的语音控制机械手

智能机器人技术为近年来研究热点,机械手在智能机器人教学研究与工业机器人领域占据很大比例,本文设计实现了基于STM32为控制平台的四自由度机械手控制系统,系统可以调试,存储机械手动作,并且使用语音控制模块,使机械手具备人机对话,语音控制功能。系统高效,灵活,使用方便,对于智能机器人研究教学,工业机械人控制系统研发具有重大意义     

基于不同操作平台数据交换的联网技术

本文介绍了中国联通山东寻呼公司基于Windows NT操作系统平台上的计算机计费系统与山东工商银行基于Unix操作系统平台上的跨平台联网收费系统的结构、功能、应用效果及其系统开发的评价.     

基于多DSP的六自由度机器人伺服控制系统研究

针对Motoman-sv3x型工业机器人的封闭式控制系统,本文提出了一种基于多DSP的开放式六自由度机器人伺服控制系统.该系统实时性好,运算速度快,能够实现复杂的机械臂动作控制.     

奥维迅-200广告直播室

奥维迅公司推出最新研制出的第二代硬盘广告编播系统——广告直播室。该系统是基于加拿大Matrox公司Digisuite平台,以中文版Windows NT4.0为操作平台,采     

Windows NT仍在为获得台式机用户的认可而努力

尽管微软公司倾注了美好的愿望,一些分析家们也给予了良好的预测,但用户并没有蜂拥向作为台式工作站操作系统的Windows NT。 然而,NT也许不久将取代Unix而成为一种服务器平台。 RISC系统的制造商,尤其是NEC和DEC公司,已经在推销他们基于NT的工作站。他们声称,在计算机辅助设计和财务应用上,使用     

无线覆盖监测系统升级解决方案

本文针对原基于Windows平台开发的无线覆盖监测系统稳定性差的问题,运用嵌入式系统的方法对其进行升级改造,该系统具备系统精简、专用性强、可靠性高的优点,满足无线覆盖监测复杂性的需要,可在无线覆盖监测领域推广应用。     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

Complete approach to automatic identification and subpixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

Curved crystal spectrometer for the measurement of X-ray lines from laser-produced plasmas

In order to diagnose the laser-produced plasmas, a focusing curved crystal spectrometer has been developed for measuring the X-ray lines radiated from a laser-produced plasmas. The design is based on the fact that the ray emitted from a source located at one focus of an ellipse will converge on the other focus by the reflection of the elliptical surface. The focal length and the eccentricity of the ellipse are 1350 mm and 0.9586, respectively. The spectrometer can be used to measure the X- ray lines in the wavelength range of 0.2-0.37 nm, and a LiF crystal （200） （2d = 0.4027 nm） is used as dispersive element covering Bragg angle from 30° to 67.5°. The spectrometer was tested on Shengnang- Ⅱ which can deliver laser energy of 60-80 J/pulse and the laser wavelength is 0.35 μm. Photographs of spectra including the 1 s2p ^1P1-1s^2 ^1S0 resonance line（w）, the 1s2p ^3P2-1s^2 1S0 magnetic quadrupole line（x）, the 1s2p ^3P1-1 s^2 ^1S0 intercombination lines（y）, the 1 s2p ^3S~1-1 s^2 ^1S0 forbidden line（z） in helium-like Ti Ⅹ Ⅺ and the 1 s2s2p ^2P3/2-1 s622s ^2S1/2 line（q） in lithium-like Ti Ⅹ Ⅹhave been recorded with a X-ray CCD camera. The experimental result shows that the wavelength resolution（λ/△ 2） is above 1000 and the elliptical crystal spectrometer is suitable for X-ray spectroscopy.     

Preparation and Characterization of TaN ALD Precursors

High purity organic-tantalum precursors for thin film ALD TaN were synthesized and characterized.Vapor pressure and thermal stability of these precursors were studied.From the vapor pressure analysis,it was found that TBTEMT has a higher vapor pressure than any other published liquid TaN precursor,including TBTDET,TAITMATA,and IPTDET.Thermal stability of the alkyl groups on the precursors was investigated using a 1H NMR technique.The results indicated that the tertbutylimino group is the most stable group on TBTDET and TBTEMT as compared to the dialkylamido groups.Thermal stability of TaN precursors decreased in the following order:TBTDET ＞ PDMAT ＞ TBTEMT.In conclusion,precursor vapor pressure and thermal stability were tuned by making slight variations in the ligand sphere around the metal center.     

Electronic Structure of Semiconductor Nanocrystals

This paper reviews our recent development of the use of the large-scale pseudopotential method to calculate the electronic structure of semiconductor nanocrystals, such as quantum dots and wires, which often contain tens of thousands of atoms. The calculated size-dependent exciton energies and absorption spectra of quantum dots and wires are in good agreement with experiments. We show that the electronic structure of a nanocrystal can be tuned not only by its size,but also by its shape. Finally,we show that defect properties in quantum dots can be significantly different from those in bulk semiconductors.     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Critical Stage Rule-Based Real Time Dispatch（RTD）System in Highly-Mixed-Products （HMP） FAB

An improving utilization and efficiency of critical equipments in semiconductor wafer fabrication facilities are concerned. Semiconductor manufacturing FAB is one of the most complicated and cost sensitive environments. A good dispatching tool will make big difference in equipment utilization and FAB output as a whole. The equipment in this paper is In-Line DUV Scanner. There are many factors impacting utilization and output on this equipment group. In HMP environment one of the issues is changing of reticule in this area and idle counts due to load unbalance between equipments. Here we'll introduce a rule-based RTD system which aiming at decreasing the number of recipe change and idle counts among a group of scanner equipment in a high-mixed-products FAB.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.