BA系统在集中空调设备节能控制中的应用

本文根据北京林业大学图书馆楼宇自动控制系统节能改造项目,介绍了楼宇自动化系统在集中空调节能控制中的应用,阐述了楼宇自动化系统在提高现代化管理和服务水平中发挥的功效,论述了自动化管理系统在提高工作效率和节省能源方面的优势。     

LonWorks技术在楼宇自动化系统集成中的应用研究

本文在分析LonWorks技术及楼宇自动化系统集成模式基础上,着重讨论了LonWorks技术在楼宇自动化系统集成中的应用,提出了一种集散控制系统和LonWorks总线技术相结合的综合结构。文章结合实际工程项目,构建了基于LonWorks总线的楼宇自动化系统网络结构,并提出在设计基于LonWorks技术的楼宇自动化系统时值得注意的一些问题。     

面向楼宇自动化任务的泛总线网络架构及应用技术研究

本文分析了现有楼宇自动化系统的特点和实际工程应用中存在的问题,并从网络结构和功能角度论述了楼宇自动化系统的发展历程。然后,针对楼宇自动化的空间分布特性,本文提出了一种面向楼宇自动化任务的泛总线网络架构,分别介绍了泛总线网络的基本特征、运行机制及标准化信息模型。最后,以变风量空调系统为例,完成了变风量空调系统泛总线控制平台软硬件的设计与关键技术的开发,结果表明基于泛总线网络架构的楼宇自动化系统集成技术解决方案极具工程应用潜力。     

浅谈智能建筑中的楼宇自动化系统

本文着重介绍了智能建筑中的楼宇自动化系统，并通过对楼宇自动化系统的组成、基本功能和原理的分析让大家对智能建筑中的楼宇自动化系统有更多的了解。此外，还对智能建筑的发展进行了简要的阐述，对中国智能建筑的发展寄予希望。     

楼宇自动化控制网络技术研究

高层建筑、超大面积建筑越来越多的现代社会,如何实现对楼宇内零散分布的大型设备进行集中管理控制是影响楼宇运行是否良性运行的重要因素。这种分散式的控制需求也决定了全新自动化控制系统的诞生,它需要实现分散楼宇设备的监控、控制和测量。本文对比了楼宇自动化控制系统的发展历程中各种系统的优缺点,阐述了以太网对于楼宇自动化控制系统构建的意义,在遵循相关标准、原则和依据的基础上,讨论了楼宇自动化控制网络的组成、既定目标最后以以太网技术为基础,集成现场总线控制系统,创建OPC服务器实现通信接口数据高效传输和自动化控制系统设计。     

ZigBee技术及其在楼宇自动化系统中应用的思考

本文阐述了在楼宇自动化领域采用无线通信技术的优越性以及目前在楼宇自动化系统中应用无线通信技术所面临的问题。提出了ZigBee的出现将推动无线通信技术在楼宇自动化领域应用,并对ZigBee技术的原理及其在楼宇自动化领域的发展前景进行了展望。     

关于智能化楼宇中电气自控的运用

本文主要阐述了当前电气自动化控制在楼宇中的应用现状,并分析了楼宇自能化中电气自动化的应用特点及其技术优势,最后对电气自动化系统在智能化楼宇中的应用进行了探讨。     

浅谈智能楼宇自动化

以智能建筑中的楼宇自动化为例,简要地介绍了楼宇自动化系统,分析了LONWORKS系统的集成性、开放性和可靠性,举例说明LONWORKS技术在实践中的应用.说明了LONWORKS技术的优越性、灵活性和舒适性.     

楼宇设备自动化智能仿真系统分析

楼宇设备自动化智能仿真系统相对于楼宇自动化而言更为智能、科学，是一种新型的智能楼宇系统。本文选取楼宇中的冷站设备进行智能仿真系统的探讨，分析智能仿真系统的作用。     

基于BACnet的楼宇自控系统工程设计

本文针对楼宇自动化系统中的子系统和设备多、协议不开放等问题给楼宇自动化系统的集成带来的不便的现状,给出了采用BACnet开放标准技术构建楼宇自动化系统的集成方案。结合某度假村的BAS设计,阐述其工程设计方法。通过对系统软硬件设计实现了对度假村内的空调、给排水、供配电等系统的设备监控。该系统已投入使用,运行效果良好。     

典型楼控系统的比较及选型研究

本文针对主流楼控技术的网络架构、协议及某网站实验室的国内外楼控系统的排名进行了相应的分析研究，并重点比较了国内外典型楼控系统的各项数据，为楼控的产品选型提供了有力依据。     

楼宇自控系统架构设计

本文主要针对楼宇自控系统技术发展的现状,从网络结构、软件结构、硬件结构、集成方案、数据结构等方面进行分析,介绍了当前常用的拓扑结构,希望提供一种楼宇自控系统架构设计的系统分析方法。     

卓灵楼控系统DDC程序的编写实践

本文简述了英国卓灵楼宇自控系统,并重点介绍了如何运用卓灵楼宇自控系统图形模块化的编程语言软件SET编制楼控系统中的空调机组DDC控制程序,最后对图形模块化的编程语言和字符型编程语言作了简短对比。     

楼宇设备自动化系统的应用

工程上选择和使用楼宇自动化系统(BAS)中的偏颇问题,一般有多种原因,有设计和使用不确定的因素,也有管理方面要求不合适的地方。为了让用户在各个阶段都有据可依,选择恰当、使用合理,构成一个实用的BAS很有必要。     

Intelligence in buildings: the potential of advanced modelling

“Intelligence” in buildings usually implies facilities management via building automation systems (BAS). However, present-day commercial BAS adopt a rudimentary approach to data handling, control and fault detection, and there is much scope for improvement. This paper describes a model-based technique for raising the level of sophistication at which BAS currently operate. Using stochastic multivariable identification, models are derived which describe the behaviour of air temperature and relative humidity in a full-scale office zone equipped with a dedicated heating, ventilating and air-conditioning (HVAC) plant. The models are of good quality, giving prediction accuracies of ±0.25 °C in 19.2 °C and of ±0.6% rh in 53% rh when forecasting up to 15 minutes ahead. For forecasts up to 3 days ahead, accuracies are ±0.65 °C and ±1.25% rh, respectively.

The utility of the models for facilities management is investigated. The “temperature model” was employed within a predictive on/off control strategy for the office zone, and was shown to substantially improve temperature regulation and to reduce energy consumption in comparison with conventional on/off control. Comparison of prediction accuracies for two different situations, that is, the office with and without furniture plus carpet, showed that some level of furnishing is essential during the commissioning phase if model-based control of relative humidity is contemplated.

The prospects are assessed for wide-scale replication of the model-based technique, and it is shown that deterministic simulation has potential to be used as a means of initialising a model structure and hence of selecting the sensors for a BAS for any building at the design stage. It is concluded that advanced model-based methods offer significant promise for improving BAS performance, and that proving trials in full-scale everyday situations are now needed prior to commercial development and installation.     

Augmented reality-based computational fieldwork support for equipment operations and maintenance

This paper describes the development of an Augmented Reality (AR)-based equipment Operations and Maintenance (O&M) fieldwork support application to improve efficiency at the site and the experimental evaluation of the application. The application consists of an AR-based interface for intuitive GUI and an O&M information model developed with various types of O&M specific information obtained through observing tradespeople's fieldwork activities, and those from Computerized Maintenance Management System (CMMS) and Building Automation System (BAS). In addition, the BACnet protocol is used to get sensor-derived operation data in real time from BAS. A series of experiments was conducted to quantitatively measure improvement in equipment O&M fieldwork efficiency by using a software prototype of the application. The results show that with the application the subjects saved, on average, 51% of time spent at task when they located target areas and 8% of time at task while obtaining sensor-based performance data from BAS.     

BAS污水处理工艺及施工要点

简述了BAS污水处理工艺的优点,分析了BAS污水处理工艺理论及工艺特点,强调了BAS污水处理工艺的施工要点,总结了施工中值得借鉴的一些工程做法,从而推广BAS污水处理工艺。     

楼宇自控系统性能比较

楼宇自控系统在智能建筑中占有举足轻重的地位,如何选择合适的楼宇自控系统是设计的关键.本文根据实际经验,就霍尼韦尔、西门子和江森楼宇自控系统的性能和特点进行比较,着重从系统特点、网络结构、DDC类型、Lonworks现场总线的应用等方面进行描述.     

暖通空调系统的计算机控制管理──第4讲 建筑设备自动化系统

介绍商业建筑中的建筑设备自动化系统（ＢＡＳ），先简单列出ＢＡＳ可能包括的各个子系统应具有的功能，接着讨论了为实现这些功能所要求的系统配置，其中包括通讯网络、综合布线以及中央管理机，最后着重讨论了ＢＡＳ的各种管理功能及实现方法。     

Development of particle-based biofilms for degradation of xenobiotic organic compounds

The aim of the experiments performed in this work was to develop a biofilm airlift suspension (BAS) process for the degradation of a mixture of organic sulfonates contained in the infiltration water from a contaminated site. To achieve this goal, active biomass growing on the contaminating xenobiotic organics as the sole source of carbon was obtained by enriching a mixed microbial culture sampled from an activated sludge treatment plant. After kinetic characterisation, the enriched culture was inoculated in the BAS reactor, where it colonised carrier particles and formed stable and uniform biofilms. In spite of the slow growth and degradation kinetics (mu(max)=0.014 h(-1)), due to high biomass concentration (up to 12 g(VS)L(-1)) a high rate process was performed in the BAS reactor, achieving a degradation capacity of 8.7 kg(COD)m(-3)d(-1), with an overall degradation efficiency of 70% based on COD measurements.