虚拟组态技术在智慧园区中的研究与应用

针对当前智慧园区在数字化运维阶段工作量大、数据多、维护过程复杂等问题,提出了面向智慧园区管理业务及管理要素的虚拟组态技术方法。通过DGRVT格式的数据交互方法、物联网平台的设备物模型标准库与模型编码相结合的方式,实现BIM结构化静态数据、管理关系型数据与物联网实时数据的自动关联与继承,并开展了标准化制定、技术研究等项目应用验证,为运维阶段的数据检索、数据维护与更新、数据挖掘与决策分析等提供有效支撑。     

浅议自动调节阀的选型及维护

介绍了目前常用自动调节阀的类型及各类型的适用范围、优缺点,重点介绍了自动调节阀的选型原则及口径计算公式,根据多年的实际工作经验对自动调节阀的维护提出了几点注意事项。     

基于光宽带端到端智慧运营的光终端全自动开通方法

目前光宽带端到端运营过程中PON光终端录入LOID配置采用人工或者半人工的方式实现,尚无方法和系统真正实现光终端全自动开通.要实现自动开通要求包括业务自动开通局内施工自动化、终端实现即插即用,满足运营维护一体化、终端市场化的需求.提出PON光终端全自动开通的方法和系统,可以有效解决上述“临门一脚”问题,提升光网络端到端智慧运营能力,减少资源浪费,提升用户感知.     

动态DNS的原理和实现及其在移动分组域网络中的应用

随着数据业务突飞猛进地发展,如何提高＂保持业务连续性＂和＂业务快速有效迁移＂的能力是运营商维护工作的重点内容之一。本文探讨了动态DNS的原理和模拟实现,根据DNS在移动分组域网络中的重要作用,引入DNS动态负载均衡技术,从而自动地实现业务均衡和迁移,并进一步讨论了GGSN状态的监测方法。     

融合SDN技术的IP承载网流量调度系统研究

随着互联网业务迅猛发展,IP承载网网络规模和业务流量呈跨越式增长,传统维护模式难以支撑网络运维需要。课题研究通过引入IGP/BGP路由协议监听分析技术,实现网络拓扑自动生成、业务路由端到端可视;利用Netflow技术实现流量流向实时可视;在实现路由及流量可视化的基础上,叠加SDN流量调度技术,自动监测链路拥塞,智能选路,自动进行策略仿真和下发。基于课题研究开发基于SDN架构的IP承载网流量调度系统,有效提升维护质量和效率,满足精细化运维的需要。     

基于主动表观模型的人脸特征点自动标定

主动表观模型是一种具有高精度和强鲁棒性的特征点标定算法。本文主要研究了主动表观模型在人脸图像特征点自动标定方向的应用,并通过MATLAB工具对目标人脸图像进行了特征点自动标定实验。实验结果证明主动表观模型是一种有效的特征点标定算法。     

增值业务自动拨测系统建设方案探讨

增值业务自动拨测系统是降低增值业务人工拨测工作量,发现增值业务产品问题和评估增值业务产品质量的有效手段。介绍了增值业务拨测平台的基本功能和能力要求,并对平台的模型和建设问题进行了构想和探讨。     

基于PI逆模型的快速微摆反射镜的开环控制

由压电陶瓷驱动器构成的快速微摆反射镜平台存在迟滞特性,影响了对快速微摆反射镜的控制。为了能够有效的对快速微摆反射镜进行控制,采用基于PI逆模型的开环控制方法。首先,采用PI模型对快速微摆反射镜平台的迟滞特性建立数学模型,通过最小二乘法辨识PI模型的参数;其次,基于PI模型的可逆性,求解PI逆模型参数;最后,验证基于PI逆模型的开环控制方法的有效性。根据轨迹跟踪实验得到的数据,在正弦波轨迹输入信号下的均方根误差为1.23%,最大误差为2.45%;在三角波轨迹输入信号下的均方根误差为1.3%,最大误差为2.37%。证明了基于PI逆模型的开环控制方法是可行的,能够有效地控制快速微摆反射镜。     

中国电信“全球眼”行业应用丰富 视频监控朝高清时代迈进

目前在浙江、福建、上海、广东等地,中国电信已有部分高清监控项目投入建设,并将在未来一两年内,形成更大规模的应用。中国电信全球眼业务经过几年大力的市场拓展,截至2011年9月份,全国已开通近55万个监控点。特别是随着平安城市的不断建设,中国电信积累了丰富的业务运营经验,培养了一支从项目实施到运营维护的专家队伍,取得了良好的经济效益和社会效益,有效提升了中国电信的品牌效应和企业价值。     

利用网站监测分析系统监控农信通栏目内容更新的方案

针对目前农信通业务栏目内容更新监控手段缺乏的问题,利用现有的网站监测分析系统,该文提出了一种网页内容更新监控方案。该方案无需业务平台进行改造,简便易行,而且无需增加额外的自动监控设备,仅需要对现有的网站监测分析系统进行少量的二次开发即可实现对栏目内容更新情况的检查、告警、报表等功能。该方案不仅可以用于农信通平台,而且还适用于其他一些基于网页进行内容更新的业务平台。该自动监控方案的实现必将极大的提高内容维护监控工作的效率,降低业务投诉量,提高客户对业务的感知度和满意度。     

Resolution Enhancement Technology:Integrated Process Solutions using OPC

DUV lithography, using the 248 nm wavelength, is a viable manufacturing option for devices with features at 130 nm and less. Given the low kl value of the lithography, integrated process development is a necessary method for achieving acceptable process latitude. The application of assist features for rule based OPC requires the simultaneous optimization of the mask, illumination optics and the resist.Described in this paper are the details involved in optimizing each of these aspects for line and space imaging.A reference pitch is first chosen to determine how the optics will be set. The ideal sigma setting is determined by a simple geometrically derived expression. The inner and outer machine settings are determined, in turn,with the simulation of a figure of merit. The maximum value of the response surface of this FOM occurs at the optimal sigma settings. Experimental confirmation of this is shown in the paper.Assist features are used to modify the aerial image of the more isolated images on the mask. The effect that the diffraction of the scattering bars (SBs) has on the image intensity distribution is explained. Rules for determining the size and placement of SBs are also given.Resist is optimized for use with off-axis illumination and assist features. A general explanation of the material' s effect is discussed along with the affect on the through-pitch bias. The paper culminates with the showing of the lithographic results from the fully optimized system.     

Cost-effective test solutions for smart card and other integrated flash applications

From its emergence in the late 1980s as a lower cost alternative to early EEPROM technologies, flash memory has evolved to higher densities and speedsand rapidly growing acceptance in mobile applications.In the process, flash memory devices have placed increased test requirements on manufacturers. Today, as flash device test grows in importance in China, manufacturers face growing pressure for reduced cost-oftest, increased throughput and greater return on investment for test equipment. At the same time, the move to integrated flash packages for contactless smart card applications adds a significant further challenge to manufacturers seeking rapid, low-cost test.     

Theoretical analysis of the relationship between the Brillouin gain coefficient and the strain in the optical-fiber sensors

The relation between the power of the Brillouin signal and the strain is one of the bases of the distributed fiber sensors of temperature and strain. The coefficient of the Bfillouin gain can be changed by the temperature and the strain that will affect the power of the Brillouin scattering. The relation between the change of the Brillouin gain coefficient and the strain is thought to be linear by many researchers. However, it is not always linear based on the theoretical analysis and numerical simulation. Therefore, errors will be caused if the relation between the change of the Brillouin gain coefficient and the strain is regarded as to be linear approximately for measuring the temperature and the strain. For this reason, the influence of the parameters on the Brillouin gain coefficient is proposed through theoretical analysis and numerical simulation.     

An improved parallel thinning algorithm with two subiterations

The parallel thinning algorithm with two subiterations is improved in this paper. By analyzing the notions of connected components and passes, a conclusion is drawn that the number of passes and the number of eight-connected components are equal. Then the expression of the number of eight-connected components is obtained which replaces the old one in the algorithm. And a reserving condition is proposed by experiments, which alleviates the excess deletion where a diagonal line and a beeline intersect. The experimental results demonstrate that the thinned curve is almost located in the middle of the original curve connectivelv with single pixel width and the processing speed is high.     

Novel fiber-optical interferometer with miniaturized probe for in-hole measurements

Today, micro-system technology and the development of new MEMS （Micro-Electro-Mechanical Systems） are emerging rapidly. In order for this development to become a success in the long run, measurement systems have to ensure product quality. Most often, MEMS have to be tested by means of functionality or destructive tests. One reason for this is that there are no suitable systems or sensing probes available which can be used for the measurement of quasi inaccessible features like small holes or cavities. We present a measurement system that could be used for these kinds of measurements. The system combines a fiber optical, miniaturized sensing probe with low-coherence interferometry, so that absolute distance measurements with nanometer accuracy are possible.     

Development of the readout system for waveguide multilayer optical card

Waveguide multilayer optical card （WMOC） is a novel storage device of three-dimensional optical information. An advanced readout system fitting for the WMOC is introduced in this paper. The hardware mainly consists of the light source for reading, WMOC, motorized stages addressing unit, microscope imaging unit, CCD detecting unit and PC controlling ＆ processing unit. The movement of the precision motorized stage is controlled by the computer through Visual Basic （VB） language in software. A control panel is also designed to get the layer address and the page address through which the position of the motorized stages can be changed. The WMOC readout system is easy to manage and the readout result is directly displayed on computer monitor.     

Study of waveguide coupling efficiency in hybrid silicon lasers

This paper presents a new method to increase the waveguide coupling efficiency in hybrid silicon lasers. We find that the propagation constant of the InGaAsP emitting layer can be equal to that of the Si resonant layer through improving the design size of the InP waveguide. The coupling power achieves 42% of the total power in the hybrid lasers when the thickness of the bonding layer is 100 nm. Our result is very close to 50% of the total power reported by Intel when the thickness of the thin bonding layer is less than 5 nm. Therefore, our invariable coupling power technique is simpler than Intel＇s.     

Collinear phase-matching study of terahertz-wave generation via difference frequency mixed in GaAs and Inp

The collinearly phase-matching condition of terahertz-wave generation via difference frequency mixed in GaAs and InP is theoretically studied. In collinear phase-matching, the optimum phase-matching wave hands of these two crystals are calculated. The optimum phase-matching wave bands in GaAs and lnP are 0.95-1.38μm and 0.7-0.96μm respectively. The influence of the wavelength choice of the pump wave on the coherent length in THz-wave tuning is also discussed. The influence of the temperature alteration on the phase-matching and the temperature tuning properties in GaAs crystal are calculated and analyzed. It can serve for the following experiments as a theoretical evidence and a reference as well.     

Effects of the alloy compositions on the phonon-polaritons in ternary mixed crystals

Composition dependence of bulk and surface phonon-polaritons in ternary mixed crystals are studied in the framework of the modified random-element-isodisplacement model and the Bom-Huang approximation. The numerical results for Several Ⅱ - Ⅵ and Ⅲ- Ⅴ compound systems are performed, and the polariton frequencies as functions of the compositions for ternary mixed crystals AlxGa1-xAs, GaPxAS1-x, ZnSxSe1-x, GaAsxSb1-x, GaxIn1-xP, and ZnxCd1-xS as examples are given and discussed. The results show that the dependence of the energies of two branches of bulk phonon-polaritons which have phonon-like characteristics, and surface phonon-polaritons on the compositions of ternary mixed crystals are nonlinear and different from those of the corresponding binary systems.     

New insert layer structure OLEDs

An insert layer structure organic electroluminescent device（OLED） based on a new luminescent material （Zn（salen）） is fabricated. The configuration of the device is ITO/CuPc/NPD/Zn（salen）/Liq/LiF/A1/CuPc/NPD/Zn（salen）/Liq/LiF/A1. Effective insert electrode layers comprising LiF（1nm）/Al（5 nm） are used as a single semitransparent mirror, and bilayer cathode LiF（1 nm）/A1（100 nm） is used as a reflecting mirror. The two mirrors form a Fabry-Perot microcavity and two emissive units. The maximum brightness and luminous efficiency reach 674 cd/m^2 and 2.652 cd/A, respectively, which are 2.1 and 3.7 times higher than the conventional device, respectively. The superior brightness and luminous efficiency over conventional single-unit devices are attributed to microcavity effect.