IFC Building Management System Integration

With the extraordinarity rapid development of intelligent buildings in China, Shanghai,as one of the Asia's finacial center, is the leader one. The designers of International FinancialCentre(IFC), which stands in X2plots of the small Lujiazui in Shanghai, adhering to theconcept of the green and intelligent had a good performance in building management system(BMS).BMS acts as the core system of the building running is the part of the highest control andmanagement level in the entire building. Through the distrubted network platform, itintegrated BAS, SAS, FAS and CPMS into a complete individual, to achieve informationsharing, intelligent control, environmental protection and energy saving purposes.It is described a highly cost BMS based on the actual needs of IFC owners. The systemnot only retained the adavantages of the conventional BMS, but also took some newinnovative integratd technology to realize the needs of owners. It had been running smoothlyand continuously for the owners and making more and more new management value.The BMS based on Schneider's I/A system. I/A system is designed in the openNiagara FrameworkTMarchitecture, Java-based object model and built-in Internet connectionmechanism. It can support for XML data processing and open application programminginterface.On the basis of project demand analysis, it is comes to classify the characteristics of theuser base and formulate the whole function target model, inculding: event management anddisposal, collaborative work, query statistics, alarm notification, emergency interaction andmanagement of contingency plans. Then, the system software framework and networkarchitecture were built. By choosing the B/S structure, the software architecture was dividedinto four layers: user interface layer, application service layer, intermediate service layer anddata analysis layer. The subsystems information was passed to the BMS according to the function need. Thecontents of subsystems information included equipment operating information, eventinformation, business information and multimedia information. It was not only described howthis information had been uploaded to the BMS server by OPC, Modbus and Web Servicetechnology, but also showed the actual solution of the interface. First, OPC integrationinvolved how to achieve OPC Data Access(DA), how to use OPC component interface andhow to set up OPC server remote access. Second, based on the OPC protocol, combined withbasic Modbus protocol communication mode, it was constructed the software architecture ofthe Modbus-OPC interfaces. It contained the object function and database relationshipacheived by multi-threading technology. Third, web service technology was used in theproject also. By table mapping method which is very suitable for relational database formatconversion, data was set into XML format. Then, ActiveX technology was used to finish theXML format file integration based on Web Service.When the software job of the project was finished, the process management and the stafforganization during IFC implementation were also introduced. The BMS's user interface wastested.Finally, reviewed the implementation of the project, some problems and solutions wereput forward. The article prospected for future work at last.