电气毕业设计外文文献.docx
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_1.gif)
![资源得分’ title=](/images/score_05.gif)
《电气毕业设计外文文献.docx》由会员分享,可在线阅读,更多相关《电气毕业设计外文文献.docx(17页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、电气毕业设计外文文献 外文文献: The Intelligent Building One of the benefits of the rapid evolution of information technology has been the development of systems that can measure, evaluate, and respond to change。An enhanced ability to control change has sparked developments in the way we design our physical enviro
2、nment, in particular, the buildings in which we work。As a result, we are witnessing significant growth in the area of Intelligent Buildings-buildings that incorporate information technology and communication systems, making them more comfortable, secure, productive, and cost-effective What is an Int
3、elligent Building? An Intelligent Building is one equipped with the telecommunications infrastructure that enables it to continuously respond and adapt to changing conditions, allowing for a more efficient use of resources and increasing the comfort and security of its occupants。An Intelligent Build
4、ing provides these benefits through automated control systems such as: heating, ventilation, and air-conditioning (HVAC);fire safety;security;and energy/lighting management。For example, in the case of a fire, the fire alarm communicates with the security system to unlock the doors。The security syste
5、m communicates with the HVAC system to regulate the flow of air to prevent the fire from spreading。 What benefits do Intelligent Buildings offer their owners and occupants? The introduction in the workplace of computers printers photocopiers, and fax machines has increased indoor pollution。Electrica
6、l and telecommunications facilities in office buildings are under pressure to satisfy the demands created by the rapid growth of computer and networking technologies。These factors have a definite impact on productivity. New technology can be used to create Intelligent Buildings that address these pr
7、oblems by providing a healthier, more productive, and less energy-intensive work environment。As these are critical factors for business success, owners of Intelligent Buildings have a clear advantage in attracting and retaining 21st-century tenants。 How do Intelligent Buildings lead to cost savings?
8、 The Intelligent Building concept recognizes that the true cost of a building is not simply its cost of construction; it must contain the costs of operate and maintenance over the structures life span。By optimizating automated control, communication, and management systems, Intelligent Buildings cos
9、t has reduced in all of these areas。They also guard against the increasing of repairing costs, productivity loss, revenue loss, and the loss of customers。 Can an Intelligent Building infrastructure be installed in existing buildings? Yes。The key competency of transformating conventional buildings in
10、to intelligent ones is installing single structured cabling network。Standard buildings featured in using different kinds of designs and administration methods from system to system。The additional facility of construction structured turns a conventional building into an intelligent one which can prov
11、ide with increased efficiency and guarding it against system breakdowns。 Why do Intelligent Buildings increasingly become a part of business imperative? Because they contribute to the business requirements as follows: To communicate data quickly and reliably To exercise greater control over the work
12、 environment To improve productivity and cost-effectiveness In response to these needs, it offers its Business Solution of intelligent wiring。 Intelligent buildings design and construction management systems The field of Intelligent Buildings, Intelligent Homes, Building Management Systems (BMS) enc
13、ompass an enormous variety of technologies, across commercial, industrial, institutional and domestic buildings which including energy management systems and building controls。The function of Building Management Systems is central to Intelligent Buildings concepts;its purpose is to monitor the funct
14、ion of building such as lighting,heating,security, CCTV and alarm systems;access control;audio-visual and entertainment systems ventilation filtration and climate control etc even time & attendance control and reporting (notably staff movement and availability)。The potential within these concepts an
15、d the surrounding technology is vast and our live are changing from the effects of Intelligent Buildings developments on our living and working environments。 The origins of Intelligent Buildings and Building Management Systems have roots in the industrial sector in the 1970s, from the systems and co
16、ntrols used to automate production processes and to optimise plant performances。The concepts and applications were then adapted, developed and modularised during the 1980s。 Intelligent buildings - control system The essence of Building Management Systems lies in the Intelligent Buildings and control
17、 technologies, which allows integration, automation, optimising services and equipment provide services and managing environment。The essence of Intelligent Management Systems lies in Programmable Logic Controllers (PLC) which formed the original basis of the control technologies。Later the developmen
18、ts of commercial and residential applications were based on “distributed-intelligence microprocessors”. Taking advantage of these technologies allows to use various Internet construction and services, which often significantly reduces cost and saves energy。 Heating - time-based control Temperature c
19、ontrol: when external temperature reaches a set level (0C),run heating system pumps to protect the system from freezing or frost. Compensated systems: It will heat temperature to control the electricity when the temperature drops and this will give a rise in the circuit flow temperature. Thermostati
20、c radiator valves: the thermodetector of which installing in the same room can change the radiator radiates accordingly to the relevant flow. Proportional control: including auto-switching equipment and auto-output adjusting. Lighting control methods Zones: In order to avoid only a small parts of li
21、ghts can be used in a large area, lights are switched on corresponding to the use and layout of the lit areas. Time control: to switch on and off automatically in each zone at times to a preset schedule for light use。 Passive Infra-Red (PIR) Occupancy sensing: In areas which are occupied intermitten
22、tly, occupancy sensors can be used to indicate whether or not anybody is present and control the switch of lights accordingly。 Building management systems and intelligent buildings - energy savings Until recent years, energy efficiency has been used at a relatively low priority and building owners a
23、nd investors pay little attention to it。However, with the dramatic increase of energy use and decrease of energy capacity, the concept of energy cost-efficiency has already soon became the important strategy of estate management, facilities management and also has being involving into the constructi
24、on. For lighting, energy savings can be up to 75% of the original circuit load, which represents 5% of the total energy consumption of the residential and commercial sectors。 Experiences from studies in Austria suggest potential heating and cooling energy savings are up to 30% in public buildings。Ev
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 电气 毕业设计 外文 文献
![提示](https://www.taowenge.com/images/bang_tan.gif)
限制150内