魏公大厦智能楼宇管理系统的设计

随着信息技术和网络技术的高速发展,对智能大厦的管理要求也越来越高,原来的对大厦内各子系统(或设备)的分散管理或者只将部分子系统(或设备)进行简单的综合管理已不能满足甲级智能大厦的管理要求.本文通过魏公大厦这一具体工程实例,具体叙述了智能楼宇管理系统(BMS)如何对各子系统进行统一的、集成的综合管理的设计方法.     

智能大厦设计方案

智能大厦（Intelligent Building，缩写IB）是现代建筑技术与高新信息技术相结合的产物。随着全球社会信息化与经济国际化的深入发展，智能大厦已成为各行业综合实力的具体象征，也是各大企业集团市场竞争实力的形象标志，也就是说企业拥有智能大厦就增强了企业的竞争实力。[编者按]     

基于四维安全体系模型的安徽报业大厦网络安全系统规划与部署

当今,网络技术的迅猛发展在带来便捷的同时也带来安全威胁,网络安全是任何局域网建设都不可忽视的,必须建设一套安全可靠的网络安全系统来保障信息系统的正常运转。该文从安徽报业大厦安全现状分析入手,依照四维安全体系模型对大厦网络安全系统进行了详细规划,最后,介绍了具体的实施部署以及相关的安全管理机制。     

智能大厦网络的通信与控制模块设计

本文介绍基于ＴＣＰ／ＩＰ的智能大厦网络通信模块和本机服务控制模块的总体设计思路，及其模块功能和数据结构的具体设计与实现方法。     

专家系统在智能化工程中的应用

论述建筑物智能化工程中系统集成及综合管理的结构,阐明实时在线决策及故障诊断的实现方案,给出深圳特区报业集团智能化大厦实时专家系统的具体应用,为有效地提高智能建筑设备的运行效率、故障诊断分析能力以及物业管理水平提供了新的思路。     

大厦智能化建设初探

一、智能大厦由来与现状84年,美国哈福特市的一座金融大厦出于需要及时获得各种内外资讯和进行信息交流,对大厦进行了智能化改造,对楼内的空调、给排水、变配电、保安、消防、照明等系统实施计算机实时监控,使大厦拥有了安全、舒适和便捷的服务功能,降低了能耗支出和人力成本,提高了大厦的竞争力,以至于这座大厦——都市大厦(City Place Building)蜚声全球.之后,世界各地掀起了智能大厦的建设热潮,尤以美、日     

基于PROFIBUS现场总线的楼宇自动监控系统

随着计算机及网络技术的发展与应用日新月异，日趋成熟的现场总线技术也越来越多地渗入到智能大厦的楼宇自控系统中，通过对当今楼宇自控系统特点的简要分析，结合具体的工程实例，提出了基于PROFIBUS现场总线及WinCC监控软件的楼宇自控系统。     

智慧型大厦自动化系统技术(一)

一、智慧型大厦功能特征智慧型大厦是现代建筑技术与高新信息技术相结合的产物,它产生于80年代中至90年代初的美、日、香港等发达国家和地区。当前,国内兴建智慧型大厦的热潮,亦方兴未艾。但什么是智慧型大厦?至今还没有统一的定义。根据我们的调查和理解,具备如下自动化系统的大厦,就是智慧型大厦:     

智能大厦的基本概念和技术要求

由于我国许多城市都在兴建大厦,因此,在国内的楼宇建设中正流行着兴建智能大厦的热潮。可是何谓智能大厦?它有哪些技术要求?许多人并不清楚,甚至在认识上有一些误区,对智能大厦有误解。因此,有必要对智能大厦的基本概念和技术要求作些介绍。     

大厦智能管理

本文系统介绍了智能大厦的概念，阐述了智能大厦的组成及各部分之功能，进而探讨了智能大厦的设计标准。     

Mr. Twinn’s bombes

This article discusses the history and design of the special versions of the bombe key-finding machines used by Britain’s Government Code & Cypher School (GC&CS) during World War II to attack the Enigma traffic of the Abwehr (the German military intelligence service). These special bombes were based on the design of their more numerous counterparts used against the traffic of the German armed services, but differed from them in important ways that highlight the adaptability of the British bombe design, and the power and flexibility of the diagonal board. Also discussed are the changes in the Abwehr indicating system that drove the development of these machines, the ingenious ways in which they were used, and some related developments involving the bombes used by the U.S. Navy’s cryptanalytic unit (OP-20-G).     

基于Multisim8的元件模型的导入和应用

Multisim8是一款优秀仿真软件,使用该软件可对电路进行各种参数分析。我们在享受其便利的同时,也遇到因缺少元器件导致电路仿真无法进行的阻力。解决此问题的方法就是为元件建立仿真模型并新建或扩充已有的元器件库。在不熟悉Spice编程原理的情况下,我们可通过相关网址查找到元件厂商提供的元件模型,利用模型导入的方法来建立需要的新元件。通过对新元件应用电路的仿真分析,新元件完全符合要求。在此基础上,使用元件的导入与导出功能还可对新元件进行文件备份并实现新元件在不同用户间的资源共享。     

联合外形响应的深度目标追踪器

针对追踪器使用卷积网络提取出来的特征模板进行目标位置匹配时，易产生响应噪声的问题，本文提出一种联合外形响应和卷积响应的深度目标追踪方法。在当前帧中，由前一帧提供的目标信息先分别提取卷积特征和外形信息，然后获得相应的卷积位置响应和外形位置响应；最后利用外形位置响应对卷积位置响应进行修正，从而有效地抑制响应噪声。实验表明:这种方法具有较高的位置精度，能够提高目标跟踪的准确性。     

A method of defuzzification based on the approach of areas' ratio

The new method of defuzzification of output parameters from the base of fuzzy rules for a Mamdani fuzzy controller is given in the paper. The peculiarity of the method is the usage of the universal equation for the area computation of the geometric shapes. During the realization of fuzzy inference linguistic terms, the structure changes from the triangular into a trapezoidal shape. That is why the universal equation is used. The method is limited and can be used only for the triangular and trapezoidal membership functions. Gaussian functions can also be used while modifying the proposed method. Traditional defuzzification models such as Middle of Maxima − MoM, First of Maxima − FoM, Last of Maxima − LoM, First of Suppport − FoS, Last of Support − LoS, Middle of Support − MoS, Center of Sums − CoS, Model of Height − MoH have a number of systematic errors: curse of dimensionality, partition of unity condition and absence of additivity. The above-mentioned methods can be seen as Center of Gravity − CoG, which has the same errors. These errors lead to the fact that accuracy of fuzzy systems decreases, because during the training root mean square error increases. One of the reasons that provokes the errors is that some of the activated fuzzy rules are excluded from the fuzzy inference. It is also possible to increase the accuracy of the fuzzy system through properties of continuity. The proposed method guarantees fulfilling of the property of continuity, as the intersection point of the adjustment linguistic terms equals 0.5 when a parametrized membership function is used. The causes of errors and a way to delete them are reviewed in the paper. The proposed method excludes errors which are inherent to the traditional and non- traditional models of defuzzification. Comparative analysis of the proposed method of defuzzification with traditional and non-traditional models shows its effectiveness.     

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.     

一种面向查询的多文档摘要方法

面向查询的多文档摘要技术有两个难点 第一,为了保证摘要与查询密切相关,容易造成摘要内容重复,不够全面;第二,原始查询难以完整描述查询意图,需进行查询扩展,而现有查询扩展方法多依赖于外部语义资源。针对以上问题,该文提出一种面向查询的多文档摘要方法,利用主题分析技术识别出当前主题下的子主题,综合考虑句子所在的子主题与查询的相关度以及子主题的重要度两方面因素来选择摘要句,并根据词语在子主题之间的共现信息,在不使用任何外部知识的情况下,进行查询扩展。在DUC2006评测语料上的实验结果表明,与Baseline系统相比,该系统取得了更高的ROUGE评价值,基于子主题的查询扩展方法则进一步提高了摘要的质量。     

An approach to the synthesis of fuzzy stabilization systems with a priori unknown model of an object

A method of synthesis of fuzzy stabilization systems for a broad class of dynamic objects under the assumption that the mathematical model of the object is not known a priori is proposed. The control is formulated in the form of a proportional law of adjustment as a function of a macro-variable; the square of the Euclidean norm of the phase variables is adopted as the macro-variable. An analogous variable characterizes the distance of the object from the equilibrium position. Despite the simplicity of the control law, its sign remains constant due to the fact that the macro-variable is positive-definite over the entire phase space. The switching times of the signals are determined by fuzzy identification of the system’s dynamic modes on the basis of measurement of the derivatives of the macro-variable.     

CCD camera modeling and simulation

In this paper we propose a modeling of an acquisition line made up of a CCD camera, a lens and a frame grabber card. The purpose of this modeling is to simulate the acquisition process in order to obtain images of virtual objects. The response time has to be short enough to permit interactive simulation. All the stages are modelised: in the first phase, we present a geometric model which supplies a point to point transformation that provides, for a space point in the camera field, the corresponding point on the plane of the CCD sensor. The second phase consists of modeling the discrete space which implies passing from the continous known object view to a discrete image, in accordance with the different orgin of the contrast loss. In the third phase, the video signal is reconstituted in order to be sampled by the frame grabber card. The practical results are close to reality when compared to image processing. This tool makes it possible to obtain a short computation time simulation of a vision sensor. This enables interactivity either with the user or with software for the design/simulation of an industrial workshop equipped with a vision system. It makes testing possible and validates the choice of sensor placement and image processing and analysis. Thanks to this simulation tool, we can control perfectly the position of the object image placed under the camera and in this way, we can characterise the performance of subpixel accuracy determining methods for object positioning.     

一种双优选的半监督回归算法

针对一些工业过程中存在的有标签样本少，而传统的半监督学习无法保证对无标签样本准确预测的问题，提出一种双优选的半监督回归算法。首先，确定有标签样本密集区中心，并计算无标签样本与该中心的相似度，实现对无标签样本的优选，同时根据有标签样本间相似度优选有标签样本；然后，利用高斯过程回归方法对选出的有标签样本建立辅学习器，以对优选出的无标签样本预测标签；最后，利用这些伪标签样本提升主学习器的预测效果。通过数值例子以及实际脱丁烷塔过程数据进行建模仿真，证明了所提方法在有标签样本较少的情况下有良好的预测性能。