Analysis Of LonWorks Technology Applied To Building Automation System

China intelligent building was built in 90 years, has been going on for more than a decade of development. From the development process, it has gone through its infancy, the first step, the rapid development and a rational development of the current stage.Being the most important part of intelligent building, the building automation system has such an effect on intelligent building that its system composition and operation directly determines the success or failure of the intelligent building operation.On the other hand, present industrial control system structure is transferring from DCS (distributed control system) with the kernal idea of "central information, distributed control" to FCS (fieldbus control system). LonWorks technology is a new-style fieldbus technology.LON bus which is a kind of the most popular fieldbus has been used in building,traffic, energy sources and so on.This thesis discussed the way of LonWorks technology applied to building automation system, the main content of dissertation is listed as followings:The thesis has carried out deep analysis and discussed on LonWorks technology ? briefly introduce the composition and function of BAS, the coordination and concentration management of each subsystem, and list the national standard and professional standard which the system design must follow. On the base of analyzing the request of the control network of BAS, the control system structure of BAS, and the feasibility of LonWorks technology applied to BAS, the thesis has build the BAS network structure based on LonWorks by combination with the actual project; The hardware design and corresponding software design of the air conditioner control system are provided. on the base of analyzing the function demand and design content of the actual project's realtime supervisor software, the thesis adopts MCGS software to design the configuration, the interface of the supervisor software is friendly, vivid and Practical.