The Design And Implement Of The Intelligent Building Monitoring And Controlling System

This thesis is based on the project of Malilan Building. An Intelligent Building Monitoring and Control System is designed and realized based on analyzing technical requirements of the project. Research results of the thesis are as follows.1. The author introduces the basic concept > development trend > system structure and applied technique of the Intelligent Building.2. In this thesis, a two level networks design scheme of Intelligent Building Monitoring and Control System is given. The system includes two level networks which is Fieldsbus Control level based on CANbus and Management level based on Windows NT. Two level networks are communicated by CAN-PC card.3. Take Fire Control and Alarm System for example, the author detailedly describes the ideas of designing and the methods of realization for the Intelligent Building Monitoring and Control Sub-System. The system is made up data communication , system management and database. The data communication is composed of Fieldsbus data communication and database communication. The function of Fieldsbus data communication is realized by CANbus The function of database communication is realized by Winsock of VB. The author utilize technique of Manchester Encoding to improve the reliability of communication. The human machine interface is established by VB.4. In this thesis, SQL Server 6.0 is used to design a database and relative datasheets based on the requirements of Center Management. VB technique is applied to access the Database in order to meet the user's demands on data reading, writing > saving and reporting.5. A hybrid controller is designed to control air-condition based on the algorithm of hybrid control, which combines the characters of PID control Fuzzy control and Bang-Bang control merits. Simulation tests have been conducted and the results show the effective of the presented Controller.6. The network of the Intelligent Building is made up of three parts which are Backbone Network , Floor Local Area Network and External Network Communication. The technique of Firewall is used to guarantee the safety of the network .7. Some remarks on the applied foreground of Internet in Intelligent Building is given .