综合布线系统在施工中的应用

介绍了综合布线系统的构成,论述了水平布线的方法、地面金属线槽的敷设、距离限制及综合布线系统的接地要求,并提出了水平布线子系统在施工中应注意的事项.     

计算机网络综合布线系统设计

详细介绍了计算机网络综合布线系统及其设计,其中包括综合布线系统的组成、综合布线系统的网络结构、综合布线设计标准规范、综合布线系统的设备选型等。结合综合布线应用实例,对综合布线系统设计中的重点内容进行了阐述。     

完美布线解决方案助力开启数据管理新未来——施耐德电气召开综合布线新产品及数据中心解决方案研讨会

施耐德电气日前于上海举办综合布线新产品及数据中心解决方案研讨会。系统集成商、设计院专家及终端用户等七十余人参与此次研讨会,就综合布线的应用特点和应用趋势、施耐德电气综合布线新品及解决方案以及数据中心内的灯控系统应用等一系列问题展开热烈讨论。     

数据中心布线工程的研究

从数据中心的发展历程谈起,结合国内某金融证券数据中心案例,详细分析了数据中心综合布线的铜缆、预端接光纤及智能电子配线系统技术在数据中心中的具体体现及应用,表明了数据中心综合布线针对用户不同需求的灵活性及选择性。最后分析了综合布线在数据中心的发展前景。     

某商务办公楼综合布线系统设计

结合某商务办公楼综合布线系统项目,介绍了综合布线系统设计的主要内容,阐述了各个组成部分的设计选型及通信线缆的选型。通过综合布线系统示意图,进一步闸述了该项目中各相对独立的商务办公楼之间的相互关联性及配置。最后对该系统的防雷和接地设计及综合布线系统的特点进行了介绍。     

同城灾备中心综合布线设计

介绍了同城灾备中心综合布线系统组成,分析了系统设备配线区、水平布线、水平配线区、主干布线、核心配线区设计。提出同城灾备中心综合布线系统需要充分考虑阶段化扩展及分区功能的调整和适应能力,达到线路、配线架等双冗余,避免出现单点故障情况。     

供电企业综合布线中光缆和电缆的选择

根据供电企业实施综合布线的建筑物或建筑群的概况及实施综合布线要解决的信息问题的特点,通过对综合布线中所用各种光缆和电缆的分析和比较,提出选择方法。     

面向智能大厦的综合布线系统（PDS）

通过对过去沿用的分散式布线系统的分析,说明结构化综合布线系统产生的根源在于：大量的电话和计算机网络系统电缆需要可靠并有序终结及灵活管理,并且独立于某一个具体的网络应用。阐述综合布线系统的优越性,解决对结构化综合布线的认识问题,防止不必要的浪费和误解,确立结构化综合布线系统应用目标,还要考虑长远的发展,并详细论述综合布线系统的各个环节,为各类要采用结构化综合布线系统的用户提供一套完整的解决思路,以适应新形势的需要。     

综合布线系统简述

简述布线系统及综合布线系统的概念。通过工程实例，介绍综合布线系统的系统组成和各子系统的功能要求。提出布线系统主要设备对环境的要求。最后对工程设计作简单的总结。     

综合布线新产品及数据中心解决方案研讨会

2011年7月4日,全球能效管理专家施耐德电气在上海举办了综合布线新产品及数据中心解决方案研讨会。系统集成商、设计院专家及终端用户等70余人参与了此次研讨会,大家就综合布线的应用特点和应用趋势、施耐德电气综合布线新品及解决方案以及数据中心内的灯控系统应用等一系列问题展开了讨论。     

Surface passivation of the thin‐film LAPS with perhydropolysilazane‐derived silica treated by O2 plasma

Here, we describe a novel method for surface passivation of the thin‐film light addressable potentiometric sensor (LAPS). To form a uniform passivation layer, perhydropolysilazane (PHPS) was utilized as a spin‐coatable precursor of silica. After transformation of PHPS into silica by baking, we introduced an O₂ plasma treatment aiming for enhancement of the water resistance of the PHPS‐derived silica (PDS) film by completing the PHPS‐to‐silica conversion. To confirm the effect of the O₂ plasma treatment, the PDS film was deposited on a thin‐film LAPS electrode and tested by immersion in a cell culturing medium. The immersion test demonstrated that the plasma‐treated PDS film could keep the electrode stable longer than the untreated could. With the treated PSD film of 600 nm in thickness, a lifetime of the thin‐film LAPS was estimated at over 2 weeks, which is sufficient for cell culturing experiments. © 2011 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.     

An accurate power delivery system (PDS) design methodology for high‐speed digital systems

The trend in high‐speed digital circuits is to increase speed and density and to operate at lower voltage. This fast increase in the switching speed combined with the decrease of the operating voltage causes the allowable absolute voltage variations to decrease, which makes the PDS design a more challenging task than ever. Moreover, the complex 3D nature of the modern PDS causes it to be more sensitive to capacitors' placement as well as capacitance value. In this paper, we introduce an efficient complete solution for the design of high‐speed digital PDS. This solution (a) takes the effects of the decoupling capacitor placement into consideration through a 3D electromagnetic simulation of the PDS, (b) defines a more‐realistic PDS design target, and (c) presents a clear capacitor value selection methodology. Finally, we applied our methodology to an industrial test case, compared its results with that of industrial design, and showed its advantages. Copyright © 2010 John Wiley & Sons, Ltd.     

计及供电—供水系统耦合关系的配电网故障恢复优化决策方法

在大停电事故后,协同利用本地分布式电源为关键负荷恢复供电是提升配电网韧性的有效措施.供电系统与供水系统是城市中2种具有密切耦合关系的生命线设施,若在制定恢复策略时对上述耦合关系考虑不足,会影响生命线设施的正常运转.首先挖掘了极端事件下配电网与配水网的耦合关系,在此基础上,以最大化电、水关键负荷恢复数目为目标,考虑配电网...     

Wireless Power Transmission via Sheet Medium Using Automatic Phase Adjustments of Multiple Inputs

Wireless power transmission via a sheet medium is a novel physical form of communication that utilizes a surface as a medium to provide both data and power transmission services. To efficiently transmit a relatively large amount of electric power (several watts), we have developed a wireless power transmission system via sheet medium that concentrates electric power on a specific spot by using phase control of multiple inputs. However, to find the optimal phases of the multiple inputs that let the microwave energy converge on a specific spot in the sheet medium, prior knowledge of the device's position and a preliminary experiment measuring the output power are needed. In the field of wireless communication, it is known that the retrodirective array scheme can efficiently transmit power in a self‐phasing manner, which uses pilot signals sent by client devices. In this paper, we apply the retrodirective array scheme to our wireless power transmission system via a sheet medium, and propose a power transmission scheme using the phase‐adjusted power transmission inputs. To confirm the effectiveness of the proposed scheme, we evaluate its performance by computer simulation and real‐world measurement. Both results show that the proposed scheme can achieve retrodirectivity over wireless power transmission via a sheet medium.     

PDS系统的工程管理

结合缓中发电有限责任公司PDS系统工程的实例,介绍了PDS系统的组成和有关概念,总结了PDS系统在设计,原材料,施工及验收等方面管理上的有关经验。     

发电市场的核心技术——预计划处理子系统

PMOS-2000发电市场技术支持系统是适合中国发电市场模式的技术支持系统,预计划处理子系统是发电市场技术支持系统的核心.详细介绍了预计划处理子系统的设计规则、作用和功能.总结了该系统在浙江发电市场中的应用情况,给出了系统的输出结果.实际运行表明预计划处理子系统运行稳定、输出结果正确;为浙江发电市场的电力商业化运行提供了技术支持;为实时发电市场的正常运作提供了基础信息.     

智能办公大楼的综合布线系统设计与施工

结合工程实际，阐述了综合布线系统设计的具体方案及具体施工内容。根据智能办公大楼的工程实际情况，对其综合布线系统方案进行了研究。详细介绍了各子系统的设计，并讨论了工程的施工方法。     

A prediction model for electromagnetic interferences radiated by anindustrial power drive system

Power conversion systems and, in particular, power drives, are now present in a large number of applications and environments. The switching operations of power drive systems (PDSs) are sources of radiated and conducted EMIs that give rise to problems of electromagnetic compatibility (EMC) with other systems. This paper proposes an efficient numerical technique to evaluate the radiated emissions due to a PDS, taking into account the radiation from intentional apertures (i.e., those for ventilation). The power section of the PDS is simulated by a combination of radiating dipoles in which the current is known. The radiated electromagnetic (EM) field induces on the PDS metallic cage surface currents that, in turn, radiate outside the cage. These currents are computed by an efficient numerical method known as the partial-element equivalent circuit technique. The proposed prediction model is, hence, able to predict the total radiated emission from a PDS in its design stage in order to fulfill the ERIC requirements called for by the international standards     

High-capacity transmission over polymer optical fiber

Polymer optical fiber (POF) is a promising transmission medium to provide broad-band telecommunication services within the customer's premises. POF offers several attractive features for data transmission such as broad bandwidth and low cost for in-house, access, and local-area-network (LAN) applications. This paper presents a review on optical transmission systems using POF and their enabling technologies. A summary is given of experimental data links with record capacity over record transmission distances. To conclude, we discuss trends for further development and research     

利用超声波方式实现无线电能传输的可行性的研究

近几年来,无线电能传输受到了国内外学者的广泛关注,但以超声波作为电能传输媒介的方式,却没有得到足够的重视.基于超声波的无线电能传输具有方向性强、能量易于集中以及传播距离足够远等优点,本文给出了基于超声波无线电能传输的电路模型;当以压电材料作为超声换能器时,通过对压电材料的机电等效,得到了超声波无线电能传输的等效电路图;...