智能建筑-毕设论文外文翻译(翻译+原文).doc
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1、英文原文Intelligent Building1、 GeneralAn Intelligent Building is one conceived and designed with an integrated flexible and modular communication cabling infrastructure capable of accommodating the needs of information intensive users for advanced information technology and services.Ever increasing occu
2、pation densities as well as the exponential development and quasi universal use of personal computers coupled to market globalization and communication capabilities, over the past 20 years, have rendered the Intelligent Building (IB) concept a priority consideration in the planning of new or upgrade
3、dOffice buildings.Evolution towards new social priorities, for the more educated office worker of today, has also led to substantial increases in environmental issue demands and standards. Social studies revealed a direct relationship between user satisfaction in the workplace and productivity. Indi
4、vidual control capability of ambient conditions, at each work station, was identified as a major element leading to user satisfaction.Technological developments and cost attenuations through technological development and product availability have now rendered the Intelligent Building a viable and a
5、justifiable option from a strict cost to benefit aspect.2、OverviewDefinitions for the Intelligent Building concept still vary but the most accepted description is the one produced by the Barcelona-based Institut defons Cerd:“A building which incorporates information systems that support the flow of
6、information throughout the building, offering advanced services of business automation and telecommunications, allowing furthermore automatic control,monitoring management and maintenance of the different subsystems or services of the building in an optimum and integrated way, local and/or remote, a
7、nd designed with sufficient flexibility to make possible in a simple and economical way the implementation of future systems.”To the uninitiated, the perception of a buildings degree of intelligence is too often correlated with the sophistication level of its Energy Management and Control System (EM
8、CS) and its Communications system. However, to be effective, it must also encompass its mechanical and electrical systems order to minimize costs and maximize efficiency. There would be little point in developing ideal EMCS and its Communication systems for the occupants if HVAC, Lighting and other
9、systems annot meet and satisfy the needs of the occupants.In a new IB installation we should expect the following features: High- speed fibre optic communication network trunk for data, video and BAS. Flexible HVAC system with modular distribution and 100% outdoor aircapability to take advantage of
10、free cooling as well as to allow flushing ofthe building to dilute volatile off-gassing contaminants; Advanced integrated Energy Management & Control System (EMCS)utilizing direct digital control technology for HVAC, Lighting, Fire Alarm and other building support systems; Dedicated circuit power di
11、stribution network complete with Uninterruptable Power Supply units; Generous standby power generation; High efficiency filtration, energy recuperation and/or thermal storage features to improve indoor air quality and energy consumption performance; Networked multi-user access incorporating structur
12、ed password protection; Maximum transparency and communication capabilities between subsystems; Electrical design features tailored to Intelligent Building; Individually controlled HVAC terminal units allowing occupant control flexibility through Intelligent Terminals Controllers at each workstation
13、.In retrofit buildings we would expect variations of the above features based on an owning and operating economical analysis taking into account the existing services and the benefits ensuing through their replacement and/or upgrade. Major retrofits, particularly those involving designs dating back
14、20 years or more, are generally dictated by a combination of the following: New code requirements, Updated indoor air quality standards, Revised energy efficiency guidelines, Increased internal electrical requirements associated to the generalized use of PCs. Revised building use. The average life c
15、ycle of most M&E installations is 20 years versus an average building life cycle of 50 years. These retrofits, therefore, often dictate a complete revamping of the existing M&E installations well before the buildings life cycle has expired. This frequently offers an opportunity to upgrade the buildi
16、ngs support systems to IB standards.3、HistoryThe IB concept surfaced in the early 80s and generally advocated extensive use of elaborate centralized electronic systems to facilitate control of building support and communication systems for voice and data. The initial concept promoted communication n
17、etworks to allow centralized word processing services and limited interaction between individual occupants and the Building Automation Systems through touch tone phones to override local HVAC set points and lighting schedules.Builders and owners were pressured to develop intelligent buildings, in sp
18、ite of the high premium costs, at that time, for prestige reasons and for enhanced rental potential.The Building Automation System and the Communication System industry as well as other specialized interest groups soon developed specific products and applications to meet and facilitate the implement
19、ation of the Intelligent Building concept. These developments coupled to the burgeoning Personal Computer market development have since reduced cost premiums drastically and greatly improved the ensuing benefits for Intelligent Buildings.The IB concept is now well accepted and applied in Europe, Asi
20、a and North America.4、Future trendsThe former Intelligent Building Institute (IBI) foundation advocated, a few years ago, a need to recognize, in future building designs, the transition from national economies to a combination of local and global economies and therefore the need to facilitate each e
21、mployees access to global communication networks. They predicted that information technology access will provide the biggest single impetus for change in the office environment. This prediction has now become a reality.IBI also predicted that environmental issues and particularly Indoor Air Quality
22、(IAQ) were becoming a primary concern in the design of the new office buildings. Improved air filtration and increased air change were pinpointed as major concerns in addition to flexible ambient room condition control.Other studies performed recently reveal that the use of Personal Environment Cont
23、rollers formerly called Intelligent Terminal Controllers or has measurably increased occupant satisfaction in the workplace on a number of pilot project installations. PECs are a combination of mechanical, electrical and control devices developed for the work station environment control and conceive
24、d to provide the occupant with the means to define and interact on temperature set points, air flow volume and diffusion patterns as well as lighting levels affecting productivity and user satisfaction. These studies have associated improved production to the use of Intelligent Terminals Controllers
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