【正文】 Solution of intelligent wiring。 Intelligent buildings design and construction management systems The field of Intelligent Buildings, Intelligent Homes, Building Management Systems (BMS) enpass an enormous variety of technologies, across mercial, industrial, institutional and 山東建筑大學畢業(yè)設計 外文文獻及譯文 3 domestic buildings which including energy management systems and building controls。 The function of Building Management Systems is central to 39。Intelligent Buildings39。 concepts； its purpose is to monitor the function of building such as lighting， heating， security, CCTV and alarm systems； access control； audiovisual and entertainment systems ventilation filtration and climate control etc even time amp。 attendance control and reporting (notably staff movement and availability)。 The potential within these concepts and 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 197039。s, from the systems and controls used to automate production processes and to optimise plant performances。 The concepts and applications were then adapted, developed and modularised during the 198039。s。 Intelligent buildings control system The essence of Building Management Systems lies in the Intelligent Buildings and control 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 developments of mercial and residential applications were based on “distributedintelligence microprocessors”. Taking advantage of these technologies allows to use various Inter construction and services, which often significantly reduces cost and saves energy。 Heating timebased control Temperature control: when external temperature reaches a set level (0176。C)， run heating system pumps to protect the system from freezing or frost. 山東建筑大學畢業(yè)設計 外文文獻及譯文 4 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. Thermostatic radiator valves: the thermodetector of which installing in the same room can change the radiator radiates accordingly to the relevant flow. Proportional control: including autoswitching equipment and autooutput adjusting. Lighting control methods Zones: In order to avoid only a small parts of lights 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 InfraRed (PIR) Occupancy sensing: In areas which are occupied intermittently, 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 and investors pay little attention to it。 However, with the dramatic increase of energy use and decrease of energy capacity, the concept of energy costeff