浦东国际机场候机楼的照明节能方案

上海浦东国际机场候机楼是一个巨大的能源消耗大户,每年的能耗达到几千万元,有效的节能不仅将为机场节省下不小的开支,而且还可为缓解上海市能源紧张状况出一份力。候机楼的照明系统节能方案已于2003年7月1日开始实施,本篇着重对于机场候机楼的照明系统的节能方案及其效果作了详细的分析。     

技术保驾 服务护航

常到上海出差,朋友们极力推荐参观正式运营后的浦东机场。当车驶入机场范围时,可见整个机场的各种建筑错落有致非常大气。机场候机楼是无梁结构,宽敞明亮,候机楼内所有的电梯都是感应式的,而且楼内的许多电话都可直接上Internet。浦东机场的经营和运作采用现代企业管理方式,机场IT部门是专门负责机场信息系统建设、维护、管理的分公司。浦东机场信息系统的核心软件由西门子公司开发。 系统的建设目标是:1.为浦东机场安全高效的生产运营和经营管理提供自动化手段;2.保障航班正点,减少航班     

首都国际机场候机楼计算机网络系统

系统综述 北京首都国际机场是北京唯一的国际机场,随着北京与国内外交往的日益增多,原有的机场候机楼及计算机网络系统已不能满足乘客对现代化航空港的需求。因此,决定按照二十一世纪国际化大型航站楼的要求建立新的候机楼及其计算机网络系统。因此,对该网络系统的基本要求是:技术先进,满足二十一世纪的网络要求;可靠性高,保证候机楼信息     

改进的机场停泊飞行器目标分割算法

考虑到飞行器目标在整幅图像中所占的比例往往较小,且图像背景复杂,本文提出了一种基于机场区域提取的飞行器目标分割算法.该算法首先利用Hough变换检测直线的特性,定位机场跑道和停机坪的位置,并结合教学形态学等图像处理技术去除了非机场区域;在提取机场区域后,再选择适当的阈值对图像进行分割,最后经过形态学去噪、小区域去除等步骤分割出飞行器目标.实验结果表明,该算法改进了以往机场区域提取算法保留候机楼等附属部分以及提取结果中存在机场区域以外区域的缺点,较好地实现了机场停泊飞行器目标的分割,为下一步准确识别飞行器类型奠定了基础.     

北京首都国际机场新候机楼计算机网络系统方案

北京首都国际机场是北京惟一的国际机场,随着北京作为中国首都与国内外交往的日益增多,原有的机场候机楼及计算机网络系统已不能满足乘客对现代化航空港的需求。因此,有关方面决定按照21世纪国际化大型航站楼的要求建设新的候机楼及其计算机网络系统。对该网络系统的基本要求是:     

浅析民用机场自动语音广播系统的设计与实现

结合国内某大型民用机场公共广播系统的建设,作者从TCP/IP 协议、广播网络结构、广播结构等方面论述了广播系统的设计与实现。机场自动语音广播系统集航班自动广播、本地广播、紧急广播、背景音乐广播于一体,及时准确向旅客播报各类业务信息,在特殊情况下播放各类紧急广播,播放各类航班动态信息和机场服务信息,从而提高机场服务的自动化程度和旅客服务水平。鉴于民用机场候机楼的特定环境,广播系统设计首先需要对语音信号进行精准的放大,声音清晰易懂,听感亲切自然;其次需要对标准音源（如背景音乐系统和自动广播系统）提供的音频信号进行准确放大,并保证所播声音的保真度。经过理论计算、系统设计和运行检验,该系统的设计满足大型民用机场的功能需求,系统运行稳定且可靠,并易于维护与管理。     

希思罗（Heathrow）国际机场数字照明设计方案

英国希思罗（Heathrow）国际机场,是世界最大的机场之一。其T5航站楼工程总投资金额42亿英磅,是现今英国最大的基础建筑项目,主体包括一座核心候机楼与两个用高速链路相连接的卫星楼。航站楼的主候机楼,两个卫星楼,公共通道、电梯前室以及交通中心候车、停车、公共卫生间等公共部位照明以及广告、标识装饰等照明,均采用西门子instabus KNX/EIB系统实现照明控制。[编者按]     

基于PLC的长春机场行李监视控制系统

机场行李系统对于整个机场系统的正常运行具有重要的作用.在此提出了机场行李监控系统的框架,并详细描述了监视控制系统的实现方法,最终通过建立了一个以PLC为核心、以以太网为联接、以上位机为系统形成编程、组态、维护、监控、管理为一体的工作平台,来解决BHS中控制及监视方案的实现,实现现场行李输送控制与上位机监控系统的无缝集成.此行李处理系统的成功应用,将大大降低维护人员的劳动强度,又确保了机场安全稳定的运作,收到了很好的经济效益和社会效益.该系统已在长春龙嘉机场、大连周水子机场等大型的国际机场实施.     

Informix落户中国四大机场

竞争对机场管理提出 巨大挑战 中国的民航业是全球发展 最快的行业之一,并雄心勃 勃地计划在下一世纪内建设或完善国内主要城市的机场设施。随着中国民航业的竞争日益激烈,以及众多其它交通方式对航运的冲击,许多航空公司已面临严重的压力,各个机场和航空公司都在积极寻求采用先进技术提高服务质量,以增强自身的业务竞争能力。 近几年,Unisys的APPS在国内机场得到了广泛的应用。自1996年3月Unisys开展这一项目以来,上海虹桥国际机场、1999年年初启用的深圳黄田国际机场、北京首都国际机场新候机楼和计划于1999年9月底完工的上海浦东国际机场等国内主要机场都采用了这一APPS系统,而Informix则为这些系统提供了所需的数据库技术和产品。 Unisys的APPS系统     

基于GIS的机场场面监控系统的设计

本文以VS.NET为开发工具,利用地理信息系统(GIS)二次开发工具MapObiects组件技术对系统的数据库设计和具体实现进行了研究.以国内某机场为例,在C#环境下设计了机场场面监控系统,为机场现场运行指挥提供了可视化、便捷化的信息管理平台,以减少机场停机坪安全事故的发生.     

Assessing Ideational and Evaluative Skills and Creative Styles and Attitudes

This article describes the rationale for the multiphase creative problem solving process, and reports the findings from an empirical investigation conducted to facilitate the problem solving of managers. The ideational skills of the managers were assessed before and after training in a complete process of creative problem solving, along with their ideational attitudes, creative problem solving style (i.e., generator, conceptualizer, optimizer, or implementor), and evaluative skill (i.e., ability to recognize original ideas). The most important findings indicated that the training had a significant impact on the evaluative accuracy of the managers. They were significantly more accurate in their judgments about original ideas after training, both in their identification of original ideas and their recognition of unoriginal ideas. After training, the managers also gave more solutions and more original solutions to problems. Finally, several variables (e.g., the “preference for active divergence” attitude, and the conceptualizer process style) seemed to moderate the impact of training. Training was therefore effective, with specific effects that can be predicted from pre-training individual differences in attitudes and process style.     

Semantics and verification of monitors and systems of monitors and processes

In this paper we present a sound and complete semantics for the monitor concept of C.A.R. Hoare. First a method for specification of monitors, introduced by O.-J. Dahl, is reviewed. This method is based on the relation between the historic sequence of monitor procedure calls and the historic sequence of monitor procedure exits. Based on such specifications and our new monitor semantics we present a method by which it is possible to prove that a concrete monitor is an implementation of an abstract one. In the last part of the paper an axiomatic semantics for systems of concurrent processes and monitors is introduced. The method supports verification by separation of concerns: Properties of the communication to and from each process are proven in isolation by a usual Hoare style axiomatic semantics, while abstract monitors are also specified in isolation by the method reviewed in the first part of the paper. These properties of the components of the system are then used in a new proof rule to conclude properties of the complete system. Stein Gjessing received a Ph.D. (actually a Dr. philos.) from the University of Oslo (Norway) in 1985. Presently he is an Associate Professor at the Institute of informatics, University of Oslo, Norway. Dr. Gjessings research interests are in the area of concurrent and distributed programming, operating systems, formal specification and verification and programming languages.     

Integrating and automating analysis and optimization

The development of an interface coupling program on personal computers for an analysis software system such as ANSYS, SAP, etc. and an optimization software system, MOST, is presented. By controlling and directing the communications the interface coupler integrates the two programs while retaining their versatility and interactive features. The integrated system is used to solve a numerical example of active noise control for a three-dimensional enclosure, in which an energy density level of control points is minimized by adding the sound source to cancel the unwanted noise. The interface coupling program automates with relatively low cost the iterative process for designing an engineering system, remaining flexible in acoustical modelling and efficient in equation solving. Also, the coupling interface is developed in a general-purpose way so that it can be expanded easily to integrate more analysis software packages of different kinds.     

Rank and select revisited and extended

The deep connection between the Burrows–Wheeler transform (BWT) and the so-called rank and select data structures for symbol sequences is the basis of most successful approaches to compressed text indexing. Rank of a symbol at a given position equals the number of times the symbol appears in the corresponding prefix of the sequence. Select is the inverse, retrieving the positions of the symbol occurrences. It has been shown that improvements to rank/select algorithms, in combination with the BWT, turn into improved compressed text indexes.