The Research On The Application Of The Web Database Technology To Networks Integration Of The Intelligent Building

The thesis is carried out based on the system integration project of an intelligent building.With the development of computer, control and network communication technology at full speed, the information network and control network integration is an important developing direction of the enterprise's automation and intelligent building. It is also one of hot focuses of present research. How to realize the exchange and fusion of data is the key to solving the control network and information network integration. The networks integration is not only the urgent need to the development of the enterprise and intelligent building, but also the inevitable trend of academic research of the control theory.The thesis discusses the application of network database technology to the network integration at the basis of analyzing network database technology. Through the research on the way of control network and information network integration at theory level, and the exploration of the problems that appear in studying and the relevant theory and technological scheme that solve the problems, the main points such as Web database technology development, system structure and accessing technology and so on are analyzed deeply, and the performance of CGI, special- purpose API, JDBC, ASP are compared. On this basis, the thesis has put forward three-level software framework of the information network and control network integration. In the thesis, by adopting OPC technology, the communication between the on-the-spot equipment and configuration software and the collection of the real-time data are completed. By using ODBC, the communication between the real-time database and relation database is finished. By utilizing ASP application procedure, the communication between the relation database and the Web server is finished, so the control network can be controlled in the long-range. Secondly, the software framework is applied to the integration of the central air conditioning control network and information network successfully, and has made the satisfactory achievement. Finally, the expert system of central air conditioning based on ASP technology is finished through combining the expert system with Web technology. The corresponding knowledge base and the reasoning machine are designed. The central air conditioning system is designed by employing process control configuration software of automation. The man-machine interface is friendly and vivid. By utilizing FrontPage, InterDev website developing instruments, ASP application procedure is developed, and the process emulation of integration between control network of the central air conditioning and information network is finished.