浅谈智能住宅小区闭路电视监控系统的设计与实现

介绍了我国目前智能小区闭路电视监控系统的技术现状,针对智能小区的特点介绍了闭路电视监控系统,详细分析了该系统的、结构以及总体设计和实现,阐述了系统的工作原理。     

基于组态技术的智能小区监控系统研究

应用组态技术构建了智能小区监控系统。介绍了智慧小区系统硬件框架,利用组态王软件开发了含安全防卫、电梯运行、给排水、火灾报警、停车场、供配电系统、通风空调、灯光照明等多功能的监控系统,通过系统仿真运行,该系统稳定性、实时性强,实现了智能小区所需的各项功能。     

基于智能电网的智能小区设计方案研究

运用现代网络融合中网络架构技术与微型计算机处理技术,开发了智能小区整体系统。系统由网络和智能支撑单元构成。整个智能小区系统有信号采集、通信协议处理、信息处理、用户业务综合处理等。信息经网络设备和终端设备进入管理中心计算机,实现系统的监控、管理、维护以及信息交互,对智能小区建设具有一定的推广意义。     

智能小区中安防系统的研究和设计

文章分析了智能小区安防系统的组成及其数字化、网络化和智能化的特点,在此基础上提出了一个基于智能家居的智能小区安防系统的设计方案。以智能家居为基本单元构建智能小区,根据数据处理模型和网络结构,将智能小区安防系统自上而下划分为由监控管理层、安防设备层和传感器层组成的3层结构。通过这种层次结构,不仅减小了系统设计和实现的复杂度,同时给系统维护带来了极大的方便。     

住宅小区视频监控系统设计

针对智能小区系统工程,介绍和阐述了住宅小区视频监控系统的功能及设计方案。     

智能建筑上位机测控系统平台的构建

研究了上位机监控系统原理和结构,其结构是由LonMaker for Windows网络工具、DDE协议、LNS DDE服务器和组态软件组成,构建了上位机测控系统平台.LonWorks网络由智能节点组成,测控系统的网络监控可分为上位机监控和远程监控.上位机监控使用运行有网络监控工具的智能小区管理计算机对每户的安防信号及抄...     

智能混凝土材料在绿色生态节能建筑中的应用

当前,以智能大厦和智能小区为代表的智能建筑,主要指的是利用现代先进技术对楼宇、社区进行控制、通信和治理。如智能大厦是以综合布线为基础,结合楼宇自动化系统（BA）、办公自动化系统（OA）、和综合通信系统（CA）等子系统实现现代办公和生活的理想场所。而智能小区则由小区网络通信、闭路电视监控、周界防范、可视对讲、小区一卡通、停车场治理、智能化物业治理、智能家居等子系统组成,以提供一个安全、舒适、便利的社区居住环境。     

智能小区数字化监控管理系统

利用计算机网络技术,实现信息共享,将是智能小区数字化监控管理系统未来发展的关键.本文将深入讨论智能小区数字化监控管理系统的设计原则、硬件结构和软件功能等相关内容.     

智能小区大安防集成物联网系统平台研究

本文基于现有的视频监控系统,采用物联网技术,针对现有的小区安防系统存在的问题提出技术方案,建立大安防集成中间件系统、智能识别软件及手机终端系统,从而构建大安防集成系统平台,全方位地提升小区的安防自动化、智能化程度,提高效率,节省人力。     

智能小区大安防集成物联网系统平台研究

本文基于现有的视频监控系统，采用物联网技术，针对现有的小区安防系统存在的问题提出技术方案，建立大安防集成中间件系统、智能识别软件及手机终端系统，从而构建大安防集成系统平台，全方位地提升小区的安防自动化、智能化程度，提高效率，节省人力。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that