The intelligent construction (Intelligent Building) is the product which the traditional building and the modern computer technology, the information network technology, the examination sensing technology and the automatic control technology unify. Along with social informationization and economical internationalization tidal current arrival, the people to building's inherent function, the ecological environment, user-friendly and the intellectualized function's and so on information-handling capacity request are getting higher and higher, this obtained the proof in recent years from the intelligent construction in our country's rapidly expand.
One ofintelligent construction's chief features constructs the equipmentautomated system, also the people are usually called “the buildingautomatic control system”. The so-called building automatic controlsystem is refers to: By a network which is composed based onmicroprocessor's equipment, can realize the energy management andthe monitoring, passes the air conditioning control, the fireprotection control, the security control as well as othercorresponding building automatic control function warmly.
Theintelligent construction is valued in the integration, only thenthrough the integrated control, can maximum limit satisfy thepeople the energy conservation which, the environmental protection,the security proposed to the modern architecture, comfortable andthe convenient quick request. How the different factory's equipmentand the system composition is one can the joint operation automaticcontrol integrative system, then interconnects with WAN, realizesthe long-distance monitoring and the long-distance maintenancefinally, this will be the 21st century constructs theintellectualized technology the mainstream direction.
Stemming from construction intellectualization technologicaldevelopment history and stemming from commercial competitionconsideration, 95 years ago overseas various manufacturerstechnology and product unification standard, either from decidesthe standard, either based on carries on the development and theapplication to the advantageous standard. This caused varioussystems to seal up the movement mutually, the technology and theproduct incompatible, mutually is not mutually general, is unableto realize the product exchange and interoperability. Realizessystem integration in the true sense is discussedextravagantly.
Alongwith the network interconnection technology's development with theInternet (Internet) in global scale's being in vogue, the opening,the interconnection and the information sharing has become theinformation age the tidal current, the structure different factoryproduct can interconnect, the exchange and interoperability and maybecome the owner, system integration business and end-user's urgentneed with the Internet seamless connection new generation buildingautomatic control system, is also our country constructs theintellectualized systems engineering application and theinternational trail connection and the synchronized developmentbest opportunity.
In view of building autonomoussystem user's above universal demand, also to promote the buildingautonomous system to step onto the health, the stable developmentpath, the US heated, the refrigeration and air conditioningengineer the association (ASHRAE) has established the 135Pauthorized item committee which in 1987 by the internationalbuilding automatic control profession expert, the scholar wascomposed (Standard Project Committee:SPC 135P), was responsible forthe technical standard which specially formulated a buildingautomatic control product manufacturing manufacturer and the userscan accept generally. After 9 years earnest careful and thewidespread rigorous proof, ASHRAE formulated and has issued inofficially the world in June, 1995 the first building automaticcontrol technical standard document - - “A Data CommunicationProtocol for Building Automation and Control Networks” (thebuilding automatic control network data communication protocol, theabbreviation “BACnet the agreement”, and is authorized in same yearDecember by the US National standards Association for the USnational standards.