【 Weak current College 】 of intelligent building system (IBMS) integration technology

1. introduction
As computer, network and communications technology progress and fast development of the intelligent construction, the intelligent building system integration technology is continually developing from junior to senior, in the category of intelligent buildings are becoming mature and are applied. In intelligent building system integration of the development process, building automatic control, premises distribution system, integrated security, public broadcasting system has become increasingly numerous and on the other hand, because of the lack of a mature construction intellectualization management system management system, enables the integration of intelligent building software, hardware, systems and systems and system operation and practical management between mutual segmentation and hardly embarrassed together, it is not adapted to customer requirements for the monitoring and management. How to break the subsystems segment bottleneck, so running the intelligent building of the hardware platform, software platforms and applications between systems, and systems, information, organization and management between the height of the integration and coordination of the operation, has become an intelligent building industry and the community focus of universal concern. For a modern intelligent building, has run *, saving energy, convenient management these are all looking forward to. Building intelligent application of the integrated management system, gives developers a good opportunity to property management to improve management level, to the owner or renter receive quality services demonstrated the performance should not be underestimated.
　
2. intelligent building management system (IBMS) status of
Intelligent building system integration definition International is still not clear, the literature in General, it is made in the use of intelligent systems and information resources, the use of system integration of technical means and ways and means of the integrated operation of the building needed information comes together to deliver comprehensive information, resources and the overall task of sharing, for each subsystem could not be achieved independently run function, the ultimate goal is to enable users to get the best meets their requirements. Currently, the system integration technology is mature.　Some systems integrators from IBMS to I2BMS I3BMS, namely the IBMS and as Integrated Building Management Systems, Integrated Intelligent I2BMS for Building Management Systems, Integrated Intelligent Internet I3BMS for Building Management Systems. Division by visible on all three could not be said that no sense, but the same suffix, not essentially different, only the differences in the degree of integration.
According to literature [2] classification, namely:
Level for the integration of system integration (IBMS)
L2-systems integration (BMS)
Three-level for system integration
Now with the development of high-tech, now is the maker of the construction of buildings in general press owners to achieve level requirements, the design of IBMS integration. As the intelligent building of the most crucial of the nervous system, building intelligent management system (Intelligent Building Management System) is not only needed to solve more complex systems, as well as a variety of control agreement between connectivity and interoperability issues, and to resolve the user's secondary exploitation. Therefore, an excellent construction intellectualization management system must have a very open and widely used by humanity. Over the years, the country has not a suited the IBMS system. While most of the system from abroad with their hardware product design, and based on the traditional C/S mode exploitation formed, therefore, with open access capacity is weak and difficult to maintain and upgrade problems, etc, this is neither in line with the trend of information technology development, it is very difficult to meet the needs of customers continue to mature. Often the customers in the use of such a system, only to find himself was firmly locked in some price high or low quality of production and services, not only will your ability to system upgrades, and unjustifiably lost originally belong to their own devices, even the original investment cannot be protected. Our building intelligent industry authorities also have a clear understanding, has been committed to support and encourage the advanced, open, suitable for China's national conditions of building intelligent management software, many well-known software companies by industry development needs in the field of active exploration, but failed to get a big progress.
At present most of the intelligent construction the configuration of the intelligent system will still run as a separate, far from information sharing. But if you do not have the information shared, property managers from a holistic perspective to understanding intelligence system as reflected in the information, not understand the role of intelligent systems. For example: a company's employees night need a Office overtime, so he must be made to the property management Department, apply for extension of the air conditioning and lighting of opening hours, modify the access card permissions so that you can enter the Office at night. The property management Department of the receipt, you must individually and BA systems and access control system of the operational staff contacts by their respective systems. If you apply for a change in overtime, change the program be required again, causing a human and a waste of time.
Intelligent building system integration. At the beginning of the construction market in China's intelligent, spontaneous, blind and one-sided pursuit of intelligent phenomenon, has gradually overcome, take a fastidious effectiveness, pragmatic attitude. As intelligent building system integration, mainly to BA system-based automation system integration to achieve environmental protection and energy saving, easy to manage. As for BA systems and intelligent building linkages to other systems, you can be contacted via the TCP/IP Protocol, the sharing of information resources. In the last two years, some of the more successful projects (such as Nanjing, Citic Tower, the Shanghai Futures Exchange building, etc.) enables information sharing, to avoid the duplication of hardware, saving manpower, and achieved good results. But the real IBMS or have a distance of most of the country may be referred to as intelligent building BMS stage.At this stage the main IBMS set with a high degree of buildings are mainly in Korea, Japan, Singapore, etc. Building intelligent systems in China, from the initial development of the various subsystems independently to system integration, from the prospective integrated system (BMS) to integration (IBMS) trend.
At present, the most intelligent integration technology for higher buildings small, even if said certain building has successfully used the IBMS, that's just in the control of the domain, namely the Association platform integration, mainly reflected in the system's implementation of the linkage relationship of function. Such as: building automatic control system and fire alarm systems linkage system, building automatic control system and the security system of the linkage, fire alarm system and security protection system of linkage, fire alarm system and emergency broadcasting system linkage, security systems and parking management system linkage, the linkage between the complementary system functions, through linkage full single system difficult to play function, realization of means in General is through RS232 or RS485 communication interface, this integration is often said of BAS system; do not meet our expectations of how IBMS integration.

The goal of the three .IBMS integration
Building intelligent integrated management system of the overall objectives for the adoption of comprehensive integration technology, construct a contact through information environment that building space, energy, logistics, environment, i.e. by structures all information resources of the collection, monitoring and sharing of the information, optimization, judgement, to building managers provide decision-making basis and implementation of control and management of automation; to building users a safe, comfortable and efficient high quality services for the integration of comprehensive control and management of real-time intelligent system for building high-performance, high efficiency and high rates of return. In the network architecture, integrated system is the core of the entire system, and to provide a comprehensive wiring system of digital information channel, and through computer network communication devices, network operating systems and other subfeatures system information interface, complete global events and integrated decision-making, control and information integration management system.
Building automation system (BA) is the integrated management system of the subsystem, you need to complete the building equipment of control and management, provide the basis for the overall integration. Integrated management system commands and air conditioning, electrical, water supply and drainage, garage, lighting, access control and patrol, audio and broadcasting, burglar alarm, smoke exhaust fan, and other information collection and control signals are integrated into the field controller, the network in accordance with a control needs delivery path scheduling the field controller collected various subsystems of various types of information. BA site controller modular configuration standard TCP/IP network protocol, RS-485 and RS-232 interface, thereby not only ensuring the interface with the subordinate equipment, guarantees and upper integration management system interface.

Four .IBMS integrated design principles
Modernization of intelligent building integrated design is the same platform to form management and integrated management system (IBMS) connected to the weak electricity system, through the IBMS, assigning each weak electronic systems of data exchange, enabling true interaction.
System design follows the following principles:
Practical principle a)
According to the building in the day-to-day management of the design requirements set for the integrated management of content, regardless of the flashy desktop features.
B) security guidelines
Building is a ' do-integrated intelligent buildings, provide a sufficient occupancy customer safety is first and foremost, this also includes the building of various types of information and systems for their own safety.
C) Extensible principles
System compatibility, you can add functionality and flexible enough to adapt to, or update.
D) easy maintenance principles
Intelligent systems are a technical requirement and the interrelationship between the system of complex systems, therefore, on the difficulty of system maintenance is much greater than the normal stand-alone subsystem, which would give the operation of the system in the future, therefore, due to difficulties in system design emphasizes system serviceability, the operator does not need to use too many specialized tools and equipment, ensure the system's maintenance simple.

Five key questions .IBMS integration
Intelligent building systems integration is the core technology is located in the information domain, i.e. a common software platform for the integration of information exchange between the subsystems, on the integrated subsystems implemented a unified management and monitoring. This mainly reflected in the adoption of computer local area network technology and open database technology to realize different systems of data sharing. This share should concern the first integration of connectivity between the subsystem and interoperability issues, should also be concerned about system linkage for problems. You can also apply to historical data record, you can also apply in the data analysis and optimization of integrated processing, more emphasis on data management capabilities, it is more a level of integration, i.e. the IBMS system.
Integrated management system (IBMS) appear to be very easy and can solve the above *. IBMS is an intelligent system of total housekeeper, it can play a role of regulation and control, strictly speaking, IBMS is a pure software system, without any equipment (except for the host computer). Although the IBMS no detector, it knows the intellectualized system belongs to the State of the detector; DDC controller IBMS no directly affected by its directive to work, but through the intellectualized system implementation of the central system, but the IBMS can know the State of the managed device, you can control any want control of equipment, all in all, as long as intelligent systems have features that can implement IBMS and put various intelligent system, the maximum level of data sharing and information exchange. This is the true meaning of IBMS. The overtime on the interview, if accepted by IBMS, you only need to apply for single entry to overtime IBMS system, then confirm, IBMS can automatically generate emptyTo extend the timetable of the harmonic lighting, adjust the overtime ' access cards. Various subsystems of connectivity and interoperability issues, this is a multi-vendor, multi-protocol, facing a variety of application architecture, you need to solve all kinds of equipment, the subsystem interface, Protocol, system platform, application software, architecture, environment, management, and other issues facing integration. Can easily and flexibly access various differences of great subsystem is the BMS system software design and implementation of an important issue, the issue is resolved, will give the system a great adaptability.
Integrated in the control of the domain, to building automation systems for the integrated core, called third-party equipment manufacturers through its communications protocol, you can implement and security system, fire alarm system, parking management systems, systems integration, and in the information domain, in order to ensure the realization of the system, the system network architecture, data structures, data access form three aspects to system integration provides * guarantee.
· System divided into real-time control network and management network, management of network uses B/S (Browser-Server) structure that allows the client software configuration is very simple.
· Database management system uses the open relational databases.
· Selection you can access the Web Server relational database.
Here we highlighted the three main elements of the system implementation, i.e.: B/S technology, developing database and Web Server. These three elements of both the current science and technology of the advanced level.
In the world information technology and construction intellectualization of the development process, from customer intelligence architectural integration of real needs, using the current mature Internet and Opc and other advanced practical support technology, developed the intelligent integration (IBMS) software, and provide building intelligent subsystems good connection, communication.

6. closing remarks
Modernization of intelligent building system integration (IBMS) should make full use of modern electronic and information technology, computer technology and communication of high technology, the realization of building equipment, communication, Office, self-control, and many other organic combination of automation, information sharing, unified management, coordinated operation using a simple, play the proper function of IBMS. Building an advanced, high efficient, versatile, multi-purpose of modern building on saving, save maintenance cost, improve work efficiency, saving training costs and so has the obvious results.
Today, domestic IBMS integration technology is not yet mature, we look forward to the near future will be more the IBMS system put into the market, and run successfully, the actual realization of whole building's entire intellectualized.

Reference documents:
　　
1. the intelligence architectural design standard "GB/T 50314-2000. Beijing: zhongguojihuachubanshe, 2000.
2. Omar, editor in Chief, the smart, building management, Beijing; China construction industry press, 2002.6
3. Yang Shao yin, the intelligent building technologies, mechanical industry press, 2002.4
4. Omar, Liang, intelligent building mainstream technology and its application, the city · Building intelligent systems ", 1999.4