The Application of LonWorks in the Building Air Conditioner Intelligent Control System

LonWorks technology is a kind of field bus technology that launched by the Echelon company of United States in the 90s. It is a complete technical platform that used to develop the monitoring network system, and it has all the characteristics of field bus technology. LonWorks network system is composed by intelligent node, every intelligent node has many types of I/O function, those nodes can communicate through different transmission media, it also abides by the ISO/OSI seven layer model agreement. LonWorks technology is made up of monitoring network design, development, installation and debugging of methodology. This paper had analysised the building automation system of control network requirements and building automation control system that based on the structure of construction and LonWorks bus network structure. It had got the specific hardware realization and the software of building air conditioning control system.